196
Digital Multimeter
Instruction Manual
TABLE OF CONTENTS
page
A. INTRODUCTION
1. Congratulations ··············· 4
2. Product Description ············ 4
3. EC Declaration of Conformity ······ 5
B. SAFETY CONSIDERATIONS
·········
6
C. TECHNICAL DATA
1. Features and Benefits ··········· 8
2. Product Applications ··········· 9
3. Specifications ················ 10
D. MEASUREMENT TECHNIQUES
1. Controls and Functions ·········
2. Power on Options ·············
3. Step by Step Procedures:
a) Measuring DC Volts ·········
b) Measuring AC Volts ·········
c) Measuring DC Amps ·········
d) Measuring AC Amps ·········
e) Measuring Resistance ········
f) Measuring Diodes···········
g) Continuity Buzzer ···········
h) Measuring Frequency ········
i) Record Mode ··············
j) Compare Mode ············
k) Relative %Mode ············
l) Two-Hold System ···········
m) Using the Current Output
Functions ················
1) Source Mode ············
2) Simulate Mode ···········
3) Producing a Steady mA Output
15
16
18
20
21
23
24
25
26
27
28
29
30
31
32
32
32
33
2
A. INTRODUCTION
4) Manually Stepping the mA
Output ················
n) Loop Power Supply Mode ·····
o) RS-232C interface ··········
E. ACCESSORIES ·················
34
36
37
40
F. MAINTENANCE
41
·················
G. TROUBLE SHOOTING GUIDE
········
42
INTRODUCTION
1. Congratulations!!
Thank you for purchasing a TPI Digital Multimeter. The
Triple Display196 is an innovative new concept in DMM
design. The unique display enables you to view more than
one event at a time. This eliminates the hassle of switching
back and forth to review minimum, maximum or preset
comparative values. The meter is also easy to use and built
to last.
2. Production Description
The DMM 196 is a hand-held autoranging DMM. The backlit
LCD can display three readings at one time. In addition to
basic function of AC/DC V, AC/DC A, Ohm, Diode test,
continuity, Capacitance, Frequency, there is the adaptor
function. The DMM 196 also has RS232 output and software
for recording information into a PC.
The DMM 196 also features:
• REC
Records Min/Max and Average readings during
specified measurement intervals.
• COMP Compare actual reading to preset HI and LOW
value for Pass/Fail testing of component.
• HOLD Tow hold system automatically holds the previous
stable reading when a new one is obtained.
The DMM 196 comes complete with the following
accessories:
Battery
Rubber Boot
Test Lead Set
Instruction Manual
3
4
A. INTRODUCTION
4) Manually Stepping the mA
Output ················
n) Loop Power Supply Mode ·····
o) RS-232C interface ··········
E. ACCESSORIES ·················
34
36
37
40
F. MAINTENANCE
41
·················
G. TROUBLE SHOOTING GUIDE
········
42
INTRODUCTION
1. Congratulations!!
Thank you for purchasing a TPI Digital Multimeter. The
Triple Display196 is an innovative new concept in DMM
design. The unique display enables you to view more than
one event at a time. This eliminates the hassle of switching
back and forth to review minimum, maximum or preset
comparative values. The meter is also easy to use and built
to last.
2. Production Description
The DMM 196 is a hand-held autoranging DMM. The backlit
LCD can display three readings at one time. In addition to
basic function of AC/DC V, AC/DC A, Ohm, Diode test,
continuity, Capacitance, Frequency, there is the adaptor
function. The DMM 196 also has RS232 output and software
for recording information into a PC.
The DMM 196 also features:
• REC
Records Min/Max and Average readings during
specified measurement intervals.
• COMP Compare actual reading to preset HI and LOW
value for Pass/Fail testing of component.
• HOLD Tow hold system automatically holds the previous
stable reading when a new one is obtained.
The DMM 196 comes complete with the following
accessories:
Battery
Rubber Boot
Test Lead Set
Instruction Manual
3
4
3. EC Declaration of Conformity
This is to certify that model DMM 196 conforms to the
protection requirement of the council directive 89/336/EEC,
in the approximation of laws of the member states relating to
Electromagnetic compatibility and 73/23/EEC, the low
voltage Directive by application of the following standards:
EN 50081-1
EN 50082-1
EN 61010-1
EN 61010-2-031
1992 Emissions standard
1992 Immunity standard
1993 Safety standard
1995 Safety standard
B. SAFETY CONSIDERATIONS
WARNING!: Please follow manufacturers test
procedures whenever possible. Do not attempt to
measure unknown voltages or components until a
complete understanding of the circuit is obtained.
GENERAL GUIDELINES
ALWAYS
• Test the DMM 196 before using to make sure it is
operating property.
To ensure conformity with these standards, this instruction
must be operated in accordance with the instruction and
specifications given in this manual.
• Inspect the test leads before using to make sure there are
no breaks or shorts.
CAUTION:
• Double-check all connections before testing.
Even though this instrument complies with the
immunity standards, the accuracy can be affected by
strong radio emissions not covered in the above
standards. Sources such as hand held radio
transceivers, radio and TV transmitters, vehicle
radios and cellular phones generate electromagnetic
radiation that could be induced into the test leads of
the instrument. Care should be taken to avoid such
situations or alternatively, check to make sure that
the instrument is not being influenced by these
emissions.
• Have someone check on you periodically if working alone.
• Have a complete understanding of the circuit under test.
• Disconnect power to circuit, and then connect test leads to
the DMM 196, and then to circuit being measured.
NEVER
• Attempt to measure unknown high voltage.
• Attempt to measure current with the meter in parallel to
the circuit.
• Connect to the test leads to a live circuit before setting up
the instrument.
• Touch any exposed metal part of the test lead assembly.
5
6
3. EC Declaration of Conformity
This is to certify that model DMM 196 conforms to the
protection requirement of the council directive 89/336/EEC,
in the approximation of laws of the member states relating to
Electromagnetic compatibility and 73/23/EEC, the low
voltage Directive by application of the following standards:
EN 50081-1
EN 50082-1
EN 61010-1
EN 61010-2-031
1992 Emissions standard
1992 Immunity standard
1993 Safety standard
1995 Safety standard
B. SAFETY CONSIDERATIONS
WARNING!: Please follow manufacturers test
procedures whenever possible. Do not attempt to
measure unknown voltages or components until a
complete understanding of the circuit is obtained.
GENERAL GUIDELINES
ALWAYS
• Test the DMM 196 before using to make sure it is
operating property.
To ensure conformity with these standards, this instruction
must be operated in accordance with the instruction and
specifications given in this manual.
• Inspect the test leads before using to make sure there are
no breaks or shorts.
CAUTION:
• Double-check all connections before testing.
Even though this instrument complies with the
immunity standards, the accuracy can be affected by
strong radio emissions not covered in the above
standards. Sources such as hand held radio
transceivers, radio and TV transmitters, vehicle
radios and cellular phones generate electromagnetic
radiation that could be induced into the test leads of
the instrument. Care should be taken to avoid such
situations or alternatively, check to make sure that
the instrument is not being influenced by these
emissions.
• Have someone check on you periodically if working alone.
• Have a complete understanding of the circuit under test.
• Disconnect power to circuit, and then connect test leads to
the DMM 196, and then to circuit being measured.
NEVER
• Attempt to measure unknown high voltage.
• Attempt to measure current with the meter in parallel to
the circuit.
• Connect to the test leads to a live circuit before setting up
the instrument.
• Touch any exposed metal part of the test lead assembly.
5
6
INTERNATION SYMBOLS
CAUTION: RISK OF ELECTRIC SHOCK
AC (ALTERNATING CURRENT)
C. TECHNICAL DATA
1. Features and benefits
Safety
Meets CE and IEC 1010 requirements. UL
Listed to U.S. and Canadian Safety
Standards.
True RMS
Needed to accurately measure nonsinusoidal AC voltage and current
waveforms found on many controls and
circuits.
DC (DIRECT CURRENT)
REFER TO INSTRUCTION MANUAL
GROUND
FUSE
DOUBLE INSULATION
Triple Display Shows more than one reading
simultaneously.
Two-Hold
System
Holds two readings on the display at
thesame time.
Auto Power Off Automatically powers instrument down
after 15 minutes of inactivity, yet will
continue acquiring data in its various
modes.
Record
Records Min/Max and Average values
Compare
Compares stored value with measured
value for matching components.
Relative
Percentage
Displays measured value as a % of stored
value for checking component tolerances.
RS232 Output Transfers data directly to a PC while
measuring.
7
Back Light
Allows viewing in any light condition.
Auto range
Automatically selects the best range for
the measurement.
8
INTERNATION SYMBOLS
CAUTION: RISK OF ELECTRIC SHOCK
AC (ALTERNATING CURRENT)
C. TECHNICAL DATA
1. Features and benefits
Safety
Meets CE and IEC 1010 requirements. UL
Listed to U.S. and Canadian Safety
Standards.
True RMS
Needed to accurately measure nonsinusoidal AC voltage and current
waveforms found on many controls and
circuits.
DC (DIRECT CURRENT)
REFER TO INSTRUCTION MANUAL
GROUND
FUSE
DOUBLE INSULATION
Triple Display Shows more than one reading
simultaneously.
Two-Hold
System
Holds two readings on the display at
thesame time.
Auto Power Off Automatically powers instrument down
after 15 minutes of inactivity, yet will
continue acquiring data in its various
modes.
Record
Records Min/Max and Average values
Compare
Compares stored value with measured
value for matching components.
Relative
Percentage
Displays measured value as a % of stored
value for checking component tolerances.
RS232 Output Transfers data directly to a PC while
measuring.
7
Back Light
Allows viewing in any light condition.
Auto range
Automatically selects the best range for
the measurement.
8
2. Product Applications
Perform the following tests and/or measurements with the
DMM196 and the appropriate function:
HVAC/R
DC mV
ACA
ACV
ACV or DCV
DcuA
OHMS
OHMS
OHMS
OHMS
Hz/FREQ
CAP
REC
• Gas application.
• Heat anticipator current in thermostats.
• Line voltage.
• Control circuit voltage.
• Flame safeguard control current.
• Heating element resistance (continuity).
• Compressor winding resistance.
• Contactor and relay coil resistance.
• Continuity of wiring.
3. Specifications
IEC 1010 Over Voltage:
CAT II-1000VDC, 750VAC
CATIII-600V
Pollution Degree 2
※ INSTALLATION I·II·III
INSTALLATION CATEGORY(OVERVOLTAGE CATEGORY) I :
Signal level, special equipment or parts of equipment, telecommunication, electronic
etc., with smaller transient overvoltages than INSTALLATION CATEGORY II.
INSTALLATION CATEGORY(OVERVOLTAGE CATEGORY) II :
Local level, appliances, PORTABLE EQUIPMENT etc., with smaller transient overvoltages than
INSTALLATION CATEGORY III.
• Frequency of line and control voltage.
• Motor start and run capacitance.
• Record min/max voltage of controls and line
voltages.
INSTALLATION CATEGORY(OVERVOLTAGE CATEGORY) III :
Distribution level, fixed installation, with smaller transient overvoltages than
INSTALLTION CATEGORY IV.
ELECTRICAL
ACV
• Measure line voltage.
OHMS
• Continuity of circuit breakers.
Hz/FREQ
• Frequency of line and control voltage.
DCV
• Voltage of direct drive DC motors.
ELECTRONIC
ACV
• Measure power supply voltage.
OHMS
• Continuity of circuit breakers.
REL%
• Match components
COMP
• Compare readings in circuit or components
Hz/FREQ
• Frequency of line and control voltage.
9
10
2. Product Applications
Perform the following tests and/or measurements with the
DMM196 and the appropriate function:
HVAC/R
DC mV
ACA
ACV
ACV or DCV
DcuA
OHMS
OHMS
OHMS
OHMS
Hz/FREQ
CAP
REC
• Gas application.
• Heat anticipator current in thermostats.
• Line voltage.
• Control circuit voltage.
• Flame safeguard control current.
• Heating element resistance (continuity).
• Compressor winding resistance.
• Contactor and relay coil resistance.
• Continuity of wiring.
3. Specifications
IEC 1010 Over Voltage:
CAT II-1000VDC, 750VAC
CATIII-600V
Pollution Degree 2
※ INSTALLATION I·II·III
INSTALLATION CATEGORY(OVERVOLTAGE CATEGORY) I :
Signal level, special equipment or parts of equipment, telecommunication, electronic
etc., with smaller transient overvoltages than INSTALLATION CATEGORY II.
INSTALLATION CATEGORY(OVERVOLTAGE CATEGORY) II :
Local level, appliances, PORTABLE EQUIPMENT etc., with smaller transient overvoltages than
INSTALLATION CATEGORY III.
• Frequency of line and control voltage.
• Motor start and run capacitance.
• Record min/max voltage of controls and line
voltages.
INSTALLATION CATEGORY(OVERVOLTAGE CATEGORY) III :
Distribution level, fixed installation, with smaller transient overvoltages than
INSTALLTION CATEGORY IV.
ELECTRICAL
ACV
• Measure line voltage.
OHMS
• Continuity of circuit breakers.
Hz/FREQ
• Frequency of line and control voltage.
DCV
• Voltage of direct drive DC motors.
ELECTRONIC
ACV
• Measure power supply voltage.
OHMS
• Continuity of circuit breakers.
REL%
• Match components
COMP
• Compare readings in circuit or components
Hz/FREQ
• Frequency of line and control voltage.
9
10
3. Specifications (cont.)
3. Specifications (cont.)
General Specifications
d. DCA
a. DCV
Range
Resolution
Accuracy
Impedance
5V
50V
500V
1000V
0.0001V
0.001V
0.01V
0.1V
+/-0.05% of reading,
+/- 4digits
10MΩ
+/-0.1% of reading, +/- 10digits
Resolution
Resolution
Accuracy
Overload
protection
5mA
50mA
500mA
1A
0.0001mA
0.001mA
0.0001A
0.01mA
+/-0.5% of reading,
+/- 5digits
+/-0.75% of reading,
+/- 5digits
Fuse(fast blow)
F600V, 0.5A 31CM
Fuse(fast blow)
F600V, 1A 31CM
Range
Resolution
Accuracy
Overload
protection
5mA
50mA
500mA
1A
0.0001mA
0.001mA
0.0001A
0.01mA
+/-0.75% of reading,
+/- 5digits
+/-1.5% of reading,
+/- 5digits
Fuse(fast blow)
F600V, 0.5A 31CM
Fuse(fast blow)
F600V, 1A 31CM
e. ACA
b. DCmV
Range
Range
Accuracy
Impedance
50mV 0.001mV +/-0.1% of reading, +/- 10digits
500mV 0.01mV
c. ACV(45Hz to 450Hz)
Range
Resolution
Accuracy
5V
50V
500V
1000V
0.0001V
0.001V
0.01V
0.1V
+/-0.4% of reading, +/- 40digits
Impedance
10MΩ
f. OHM(Resistance)
Range
Resolution
Accuracy
Overload
protection
500Ω
5KΩ
50KΩ
500KΩ
5MΩ
50MΩ
0.01Ω
0.0001KΩ
0.001KΩ
0.01KΩ
0.0001MΩ
0.001MΩ
+/-0.05% of reading,
+/- 5digits
600V DC or AC
peak
+/-1.0% of reading,
+/- 10digits
g. Diode test
Range
3V
11
Resolution
Accuracy
Approx. 1mA
Overload protection
600V DC or AC peak
12
3. Specifications (cont.)
3. Specifications (cont.)
General Specifications
d. DCA
a. DCV
Range
Resolution
Accuracy
Impedance
5V
50V
500V
1000V
0.0001V
0.001V
0.01V
0.1V
+/-0.05% of reading,
+/- 4digits
10MΩ
+/-0.1% of reading, +/- 10digits
Resolution
Resolution
Accuracy
Overload
protection
5mA
50mA
500mA
1A
0.0001mA
0.001mA
0.0001A
0.01mA
+/-0.5% of reading,
+/- 5digits
+/-0.75% of reading,
+/- 5digits
Fuse(fast blow)
F600V, 0.5A 31CM
Fuse(fast blow)
F600V, 1A 31CM
Range
Resolution
Accuracy
Overload
protection
5mA
50mA
500mA
1A
0.0001mA
0.001mA
0.0001A
0.01mA
+/-0.75% of reading,
+/- 5digits
+/-1.5% of reading,
+/- 5digits
Fuse(fast blow)
F600V, 0.5A 31CM
Fuse(fast blow)
F600V, 1A 31CM
e. ACA
b. DCmV
Range
Range
Accuracy
Impedance
50mV 0.001mV +/-0.1% of reading, +/- 10digits
500mV 0.01mV
c. ACV(45Hz to 450Hz)
Range
Resolution
Accuracy
5V
50V
500V
1000V
0.0001V
0.001V
0.01V
0.1V
+/-0.4% of reading, +/- 40digits
Impedance
10MΩ
f. OHM(Resistance)
Range
Resolution
Accuracy
Overload
protection
500Ω
5KΩ
50KΩ
500KΩ
5MΩ
50MΩ
0.01Ω
0.0001KΩ
0.001KΩ
0.01KΩ
0.0001MΩ
0.001MΩ
+/-0.05% of reading,
+/- 5digits
600V DC or AC
peak
+/-1.0% of reading,
+/- 10digits
g. Diode test
Range
3V
11
Resolution
Accuracy
Approx. 1mA
Overload protection
600V DC or AC peak
12
3. Specifications (cont.)
3. Specifications (cont.)
h. Continuity Buzzer
Test voltage
3V
l. General Specifications
Threshold
Overload protection
30digits
600V DC or AC peak
i. Current Output
Mode
Range
Accuracy
Source
Smulate
0~24mA
0~24mA
0.1% of reading, +/- 10digits
j. Frequency
Range
Resolution
Accuracy
Overload protection
500Hz
5Khz
50Khz
500Khz
0.01Hz
+/-0.05% of reading,
0.0001Khz +/- 5digits
0.001Khz
0.01Khz
600V DC or AC
peak
Max. volt. between
1000V
any input and Ground
Fuse protection
mA : 0.5A/600VAC; A : 10A/600VAC
Display Type Digital : 50000 count, 4 times/S update Bar
graph : 51 segment
Operating temp.
0°C to 40 °C (32°F to 113°F)
Storage Temp.
-20°C to 60°C (-4°F to 140°F)
Relative Humidity
0% to 80% ( 0° ~ 35 °C/ 32° ~ 95°F)
0% to 70% ( 35° ~ 55 °C/ 95° ~ 131°F)
Power Supply
9Volt battery
Battery Life
Size(H x L x W)
Weight
k. Adaptor
Model
Display
A301(Temp Adaptor C/F)
A254(Current Adaptor 10/60A)
0000.0 C/F
00.000A
000.00A
0000.0A
0000.0A
1mV/C, 1mV/F
100mV/A,
10mV/A
A256(Current Adaptor 40/400A)
1mV/A
A296(Current Adaptor 400/1000A) 1mV/A
13
14
3. Specifications (cont.)
3. Specifications (cont.)
h. Continuity Buzzer
Test voltage
3V
l. General Specifications
Threshold
Overload protection
30digits
600V DC or AC peak
i. Current Output
Mode
Range
Accuracy
Source
Smulate
0~24mA
0~24mA
0.1% of reading, +/- 10digits
j. Frequency
Range
Resolution
Accuracy
Overload protection
500Hz
5Khz
50Khz
500Khz
0.01Hz
+/-0.05% of reading,
0.0001Khz +/- 5digits
0.001Khz
0.01Khz
600V DC or AC
peak
Max. volt. between
1000V
any input and Ground
Fuse protection
mA : 0.5A/600VAC; A : 10A/600VAC
Display Type Digital : 50000 count, 4 times/S update Bar
graph : 51 segment
Operating temp.
0°C to 40 °C (32°F to 113°F)
Storage Temp.
-20°C to 60°C (-4°F to 140°F)
Relative Humidity
0% to 80% ( 0° ~ 35 °C/ 32° ~ 95°F)
0% to 70% ( 35° ~ 55 °C/ 95° ~ 131°F)
Power Supply
9Volt battery
Battery Life
Size(H x L x W)
Weight
k. Adaptor
Model
Display
A301(Temp Adaptor C/F)
A254(Current Adaptor 10/60A)
0000.0 C/F
00.000A
000.00A
0000.0A
0000.0A
1mV/C, 1mV/F
100mV/A,
10mV/A
A256(Current Adaptor 40/400A)
1mV/A
A296(Current Adaptor 400/1000A) 1mV/A
13
14
D. MEASUREMENT TECHNIQUES
Selects the DC A function (Push ORANGE
button to activate AC A.)
1. Controls and function:
Push Button
Adp
RANGE
Activates manual range
REC
Activates the Min/Max/Avg mode.
REL %
Activates REL% mode.
EDIT
Activates the EDIT mode for the compare
and relative % function.
Activates Backlight for the
LCD(Automatically turns off after approx.
35 sec.)
COMP
Activates Compare mode.
HOLD
Activates two-hold data hold mode
Input Jacks
V/Ohm
Red test lead connection for all Volt, Ohm,
Diode, and Continuity measurement.
COM
Black test lead connection for all functions.
uA/mA
Red test lead connection for current
measurement on the AC/DC uA and AC/DC
mA.
A
Red test lead connection for current
measurement on the AC/DC A.
RS-232
See section on RS-232C interface
Rotary Switch
OFF
Turns the instrument off.
DCmV
Selects the DC mV function
DCV
Selects the DCV function
ACV
Selects the ACV function
Selects the Diode test function
Can use A254, A256, A296 and A301
(Push ORANGE button to activate AC
adaptor, and push RANGE button to
choose kind of adaptor)
2. Power on Options:
Selects the Ohm function (Push ORANGE
button to activate continuity buzzer.)
Disable Auto Off
Hold down the REC button while
turning on the instrument.
Selects the Frequency function
Current output
Hold down the Range button while
turning on the instrument.
Selects the DC mA function (Push
ORANGE button to activate AC mA.)
15
16
D. MEASUREMENT TECHNIQUES
Selects the DC A function (Push ORANGE
button to activate AC A.)
1. Controls and function:
Push Button
Adp
RANGE
Activates manual range
REC
Activates the Min/Max/Avg mode.
REL %
Activates REL% mode.
EDIT
Activates the EDIT mode for the compare
and relative % function.
Activates Backlight for the
LCD(Automatically turns off after approx.
35 sec.)
COMP
Activates Compare mode.
HOLD
Activates two-hold data hold mode
Input Jacks
V/Ohm
Red test lead connection for all Volt, Ohm,
Diode, and Continuity measurement.
COM
Black test lead connection for all functions.
uA/mA
Red test lead connection for current
measurement on the AC/DC uA and AC/DC
mA.
A
Red test lead connection for current
measurement on the AC/DC A.
RS-232
See section on RS-232C interface
Rotary Switch
OFF
Turns the instrument off.
DCmV
Selects the DC mV function
DCV
Selects the DCV function
ACV
Selects the ACV function
Selects the Diode test function
Can use A254, A256, A296 and A301
(Push ORANGE button to activate AC
adaptor, and push RANGE button to
choose kind of adaptor)
2. Power on Options:
Selects the Ohm function (Push ORANGE
button to activate continuity buzzer.)
Disable Auto Off
Hold down the REC button while
turning on the instrument.
Selects the Frequency function
Current output
Hold down the Range button while
turning on the instrument.
Selects the DC mA function (Push
ORANGE button to activate AC mA.)
15
16
3. Step by step procedure
a. Measuring DC Volts
CAUTION
Do not attempt to make a voltage measurement if a test
lead is plugged in the A or mA input jack. Instrument
damage and/or personal injury may result.
WARNING!
Application Notes
When measuring DC Voltage of a battery, the
most accurate reading can be attained by
testing the battery under load. To accomplish
this, follow steps 1 through 4 above and the
following (with the battery in holder and device
turned on):
Do not attempt to make a voltage measurement of more
than 1000V or of voltage level that is unknown.
Instrument set-up:
FUNCTION
BLACK
TEST LEAD
RED
TEST LEAD
MINIMUM
READING
MAXIMUM
READING
COM
COM
VΩ
VΩ
0.001mV
0.0001V
500.00mV
1000.0V
•
Connect the red test lead from the meter to
the positive (+) terminal of the battery.
•
Connect the black test lead to the negative
(-) terminal of the battery.
Measurement Procedure:
•
Reconnect power to the circuit and read the
voltage on the 190.
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
3. Plug red test lead into the
input jack.
4. Set rotary switch to either the DCmV or DCV range,
depending on the voltage to be measured.
5. Connect test leads to circuit to be measured.
6. Reconnect power to circuit to be measured.
7. Read the voltage on the LCD.
17
18
3. Step by step procedure
a. Measuring DC Volts
CAUTION
Do not attempt to make a voltage measurement if a test
lead is plugged in the A or mA input jack. Instrument
damage and/or personal injury may result.
WARNING!
Application Notes
When measuring DC Voltage of a battery, the
most accurate reading can be attained by
testing the battery under load. To accomplish
this, follow steps 1 through 4 above and the
following (with the battery in holder and device
turned on):
Do not attempt to make a voltage measurement of more
than 1000V or of voltage level that is unknown.
Instrument set-up:
FUNCTION
BLACK
TEST LEAD
RED
TEST LEAD
MINIMUM
READING
MAXIMUM
READING
COM
COM
VΩ
VΩ
0.001mV
0.0001V
500.00mV
1000.0V
•
Connect the red test lead from the meter to
the positive (+) terminal of the battery.
•
Connect the black test lead to the negative
(-) terminal of the battery.
Measurement Procedure:
•
Reconnect power to the circuit and read the
voltage on the 190.
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
3. Plug red test lead into the
input jack.
4. Set rotary switch to either the DCmV or DCV range,
depending on the voltage to be measured.
5. Connect test leads to circuit to be measured.
6. Reconnect power to circuit to be measured.
7. Read the voltage on the LCD.
17
18
b. Measuring AC Volts
CAUTION
Do not attempt to make a voltage measurement if a test
lead is plugged in the A or umA input jack. Instrument
damage and/or personal injury may result.
WARNING!
Do not attempt to make a voltage measurement of more
than 750V or of a voltage level than is unknown.
Application Notes
Disconnect power from the terminal
block, find the fuse or circuit breaker
that controls the block and turn it
off.
FUNCTION
BLACK
TEST LEAD
RED
TEST LEAD
COM
Set up the meter following the
steps under “Measurement
Procedure” on page 13. Then proceed with the
following:
Measurement Procedure:
•
3. Plug red test lead into the
•
19
Instrument set-up:
Connect the red test lead to the hot side of the
block and the black lead to the neutral side of the
block. Reconnect power to the block and read the
voltage on the meter. The reading should be
approximately 110V to 130V.
Disconnect power from the block and move the
red wire to ground. Reconnect power to the block
and read the voltage on the meter. Typically less
than 20V should exist from neutral to ground. If
110V or above exists, the block may be wired
incorrectly.
MINIMUM
READING
MAXIMUM
READING
0.0001V
750.0V
1. Disconnect power to circuit to be measured.
2. Plug black test lead into COM input jack.
input jack.
4. Set the rotary switch to the ACV function depending on
the voltage to be easured.
5. Connect test leads to circuit to be measured.
6. Reconnect power to circuit to be measured.
7. Read the voltage on the LCD.
20
b. Measuring AC Volts
CAUTION
Do not attempt to make a voltage measurement if a test
lead is plugged in the A or umA input jack. Instrument
damage and/or personal injury may result.
WARNING!
Do not attempt to make a voltage measurement of more
than 750V or of a voltage level than is unknown.
Application Notes
Disconnect power from the terminal
block, find the fuse or circuit breaker
that controls the block and turn it
off.
FUNCTION
BLACK
TEST LEAD
RED
TEST LEAD
COM
Set up the meter following the
steps under “Measurement
Procedure” on page 13. Then proceed with the
following:
Measurement Procedure:
•
3. Plug red test lead into the
•
19
Instrument set-up:
Connect the red test lead to the hot side of the
block and the black lead to the neutral side of the
block. Reconnect power to the block and read the
voltage on the meter. The reading should be
approximately 110V to 130V.
Disconnect power from the block and move the
red wire to ground. Reconnect power to the block
and read the voltage on the meter. Typically less
than 20V should exist from neutral to ground. If
110V or above exists, the block may be wired
incorrectly.
MINIMUM
READING
MAXIMUM
READING
0.0001V
750.0V
1. Disconnect power to circuit to be measured.
2. Plug black test lead into COM input jack.
input jack.
4. Set the rotary switch to the ACV function depending on
the voltage to be easured.
5. Connect test leads to circuit to be measured.
6. Reconnect power to circuit to be measured.
7. Read the voltage on the LCD.
20
c. Measuring DC Amps
CAUTION
Do not attempt to make a current measurement with the
test leads connected in parallel with the circuit to be
tested. Test leads must be connected in series with the
circuit.
WARNING!
Do not attempt to make a current measurement of circuits
with more than 600V present. Instrument damage and/or
personal injury may result.
Instrument set-up:
FUNCTION
BLACK
TEST LEAD
COM
COM
RED
TEST LEAD
mA
A
MINIMUM
READING
MAXIMUM
READING
Application Notes
0.001mA
0.0001A
500.00mA
10.000A
When measuring the DC current of a
flame controller, follow the steps
under “Measurement Procedure”
above and then proceed with the
following:
•
Set up the meter for
making a µA measurement.
•
Connect the meter to the flame
controller lead by opening the
circuit and inserting the leads in
series with the circuit as shown
in the picture above.
Measurement Procedure:
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
3. Plug red test lead into the mA or A input jack depending
on the value of current to be measured.
4. Set the rotary switch to the
or
function.
5. Connect the test leads in series to the circuit to be
measured.
6. Reconnect power to circuit to be measured.
7. Read the current on the LCD.
21
22
c. Measuring DC Amps
CAUTION
Do not attempt to make a current measurement with the
test leads connected in parallel with the circuit to be
tested. Test leads must be connected in series with the
circuit.
WARNING!
Do not attempt to make a current measurement of circuits
with more than 600V present. Instrument damage and/or
personal injury may result.
Instrument set-up:
FUNCTION
BLACK
TEST LEAD
COM
COM
RED
TEST LEAD
mA
A
MINIMUM
READING
MAXIMUM
READING
Application Notes
0.001mA
0.0001A
500.00mA
10.000A
When measuring the DC current of a
flame controller, follow the steps
under “Measurement Procedure”
above and then proceed with the
following:
•
Set up the meter for
making a µA measurement.
•
Connect the meter to the flame
controller lead by opening the
circuit and inserting the leads in
series with the circuit as shown
in the picture above.
Measurement Procedure:
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
3. Plug red test lead into the mA or A input jack depending
on the value of current to be measured.
4. Set the rotary switch to the
or
function.
5. Connect the test leads in series to the circuit to be
measured.
6. Reconnect power to circuit to be measured.
7. Read the current on the LCD.
21
22
e. Measuring Resistance
d. Measuring AC Amps
CAUTION
Do not attempt to make a current measurement with the
test leads connected in parallel with the circuit to be
tested. Test leads must be connected in series with the
circuit.
WARNING!
NOTE:
Do not attempt to make a current measurement of circuits
with more than 600V present. Instrument damage and/or
personal injury may result.
Instrument set-up:
FUNCTION
BLACK
TEST LEAD
COM
COM
WARNING!
Do not attempt to make resistance measurements with
circuit energized. For best results, remove the resistor
completely from the circuit before attempting to measure
it.
To make accurate low ohm measurements, short the ends
of test leads together and record the resistance reading.
Deduct this value from actual readings.
Instrument set-up:
RED
TEST LEAD
mA
A
MINIMUM
READING
0.001mA
0.0001A
MAXIMUM
READING
500.00mA
10.000A
FUNCTION
BLACK
TEST LEAD
RED
TEST LEAD
COM
MINIMUM
READING
MAXIMUM
READING
0.01Ω
50.000MΩ
Measurement Procedure:
Measurement Procedure:
1. Disconnect power to circuit to be measured.
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
2. Plug black test lead into the COM input jack.
3. Plug red test lead into
input jack.
3. Plug the red test into the mA or A input jack depending
on the value of current to be measured.
4. Set the rotary switch to the
4. Set the rotary switch to the
5.Connect the test leads to the circuit to be measured.
or
function.
5. Press the orange push button.
function.
6. Read the resistance value on the LCD.
6. Connect test leads in series to circuit to be measured.
7. Reconnect power to circuit to be measured.
8. Read the current on the LCD.
23
24
e. Measuring Resistance
d. Measuring AC Amps
CAUTION
Do not attempt to make a current measurement with the
test leads connected in parallel with the circuit to be
tested. Test leads must be connected in series with the
circuit.
WARNING!
NOTE:
Do not attempt to make a current measurement of circuits
with more than 600V present. Instrument damage and/or
personal injury may result.
Instrument set-up:
FUNCTION
BLACK
TEST LEAD
COM
COM
WARNING!
Do not attempt to make resistance measurements with
circuit energized. For best results, remove the resistor
completely from the circuit before attempting to measure
it.
To make accurate low ohm measurements, short the ends
of test leads together and record the resistance reading.
Deduct this value from actual readings.
Instrument set-up:
RED
TEST LEAD
mA
A
MINIMUM
READING
0.001mA
0.0001A
MAXIMUM
READING
500.00mA
10.000A
FUNCTION
BLACK
TEST LEAD
RED
TEST LEAD
COM
MINIMUM
READING
MAXIMUM
READING
0.01Ω
50.000MΩ
Measurement Procedure:
Measurement Procedure:
1. Disconnect power to circuit to be measured.
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
2. Plug black test lead into the COM input jack.
3. Plug red test lead into
input jack.
3. Plug the red test into the mA or A input jack depending
on the value of current to be measured.
4. Set the rotary switch to the
4. Set the rotary switch to the
5.Connect the test leads to the circuit to be measured.
or
function.
5. Press the orange push button.
function.
6. Read the resistance value on the LCD.
6. Connect test leads in series to circuit to be measured.
7. Reconnect power to circuit to be measured.
8. Read the current on the LCD.
23
24
f. Measuring Diodes
g. Continuity Buzzer
CAUTION
Do not attempt to make diode measurements with circuit
energized. The only way to accurately test a diode is to
remove it completely from the circuit before attempting to
measure it.
WARNING!
Do not attempt to make continuity measurements with
circuit energized.
IInstrument set-up:
FUNCTION
BLACK TEST LEAD
RED TEST LEAD
Instrument set-up:
FUNCTION
BLACK
TEST LEAD
RED
TEST LEAD
COM
MINIMUM
READING
MAXIMUM
READING
0.001V
2.0000V
COM
Measurement Procedure:
1. Disconnect power to circuit to be measured.
Measurement Procedure:
2. Plug black test lead into the COM input jack.
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
3. Plug red test lead into
4. Set the rotary switch to the
input jack.
function.
5. Connect the black test lead to the banded end of the diode
and the red test lead to the non-banded end of the diode.
3. Plug red test lead into the
input jack.
4. Set the rotary switch to the
function.
5. Press the orange push button to activate the continuity
buzzer.
6. Connect test leads to circuit to be measured.
7. Listen for the buzzer to confirm continuity.
6. Reading on the display should be between 0.5 and 0.8
volts.
7. Reading test lead connections in 5 above.
8. Reading on the display should be OFL(Overflow).
NOTE: If diode reads 0 in both directions, diode is
shorted. If diode reads OFL in both directions, diode
is open.
25
26
f. Measuring Diodes
g. Continuity Buzzer
CAUTION
Do not attempt to make diode measurements with circuit
energized. The only way to accurately test a diode is to
remove it completely from the circuit before attempting to
measure it.
WARNING!
Do not attempt to make continuity measurements with
circuit energized.
IInstrument set-up:
FUNCTION
BLACK TEST LEAD
RED TEST LEAD
Instrument set-up:
FUNCTION
BLACK
TEST LEAD
RED
TEST LEAD
COM
MINIMUM
READING
MAXIMUM
READING
0.001V
2.0000V
COM
Measurement Procedure:
1. Disconnect power to circuit to be measured.
Measurement Procedure:
2. Plug black test lead into the COM input jack.
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
3. Plug red test lead into
4. Set the rotary switch to the
input jack.
function.
5. Connect the black test lead to the banded end of the diode
and the red test lead to the non-banded end of the diode.
3. Plug red test lead into the
input jack.
4. Set the rotary switch to the
function.
5. Press the orange push button to activate the continuity
buzzer.
6. Connect test leads to circuit to be measured.
7. Listen for the buzzer to confirm continuity.
6. Reading on the display should be between 0.5 and 0.8
volts.
7. Reading test lead connections in 5 above.
8. Reading on the display should be OFL(Overflow).
NOTE: If diode reads 0 in both directions, diode is
shorted. If diode reads OFL in both directions, diode
is open.
25
26
h. Measuring Frequency
i. Record Mode
WARNING!
Never attempt a frequency measurement with a voltage
source greater than 600V. Determine the voltage of any
unknown frequency source before connecting the
instrument in frequency source before connecting the
instrument in frequency mode.
FUNCTION
BLACK
TEST LEAD
RED
TEST LEAD
COM
The record mode saves minimum (MIN) and maximum
(MAX) values measured for a series of readings. The main
part of the LCD displays the actual reading, the MAX value is
constantly displayed on the lower left hand sub-display while
the MIN value is constantly displayed on the lower right
hand sub-display. Activate the function as follows:
MINIMUM
READING
MAXIMUM
READING
1. Depress the REC button on the 196.
0.01Hz
500.00KHz
2. The DMM 196 will immediately start to record and display
MIN/MAX values on the two lower sub-displays.
3. Press REC button a second time and the AVG(average)
reading will be displayed.
Measurement Procedure:
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
3. Plug red test lead into the
input jack.
4. Set the rotary switch to the
function.
4. Press the REC button again to return to normal record
mode.
5. Press the orange push button.
6. Reconnect power to circuit to be measured.
7. Read the frequency on the LCD.
27
28
h. Measuring Frequency
i. Record Mode
WARNING!
Never attempt a frequency measurement with a voltage
source greater than 600V. Determine the voltage of any
unknown frequency source before connecting the
instrument in frequency source before connecting the
instrument in frequency mode.
FUNCTION
BLACK
TEST LEAD
RED
TEST LEAD
COM
The record mode saves minimum (MIN) and maximum
(MAX) values measured for a series of readings. The main
part of the LCD displays the actual reading, the MAX value is
constantly displayed on the lower left hand sub-display while
the MIN value is constantly displayed on the lower right
hand sub-display. Activate the function as follows:
MINIMUM
READING
MAXIMUM
READING
1. Depress the REC button on the 196.
0.01Hz
500.00KHz
2. The DMM 196 will immediately start to record and display
MIN/MAX values on the two lower sub-displays.
3. Press REC button a second time and the AVG(average)
reading will be displayed.
Measurement Procedure:
1. Disconnect power to circuit to be measured.
2. Plug black test lead into the COM input jack.
3. Plug red test lead into the
input jack.
4. Set the rotary switch to the
function.
4. Press the REC button again to return to normal record
mode.
5. Press the orange push button.
6. Reconnect power to circuit to be measured.
7. Read the frequency on the LCD.
27
28
j. Compare Mode
The compare mode takes the actual reading on the main
display and compares it to LOW and HIGH values,
programmed by the user, on the sub-displays. This is used
to compare components or measurements for acceptable
readings. Activate the function as follows:
The Relative % mode takes the actual reading on the main
display and compares it to a reference value programmed by
the user on the right hand sub-display. The left hand subdisplay will show the percentage the actual reading varies
from the reference value. Activate the function as follows:
1. To use Compare Mode manually select the correct
range for the function.
1. To use Relative % mode manually select the range for
the function.
2. Depress the COMP button.
2. Depress the REL% button.
3. Depress the EDIT button the right hand digit under the
HIGH sub-display will start to flash.
3. Depress the EDIT button. The right hand digit under the
REF sub-display will start to flash.
4. Depress the REL% or HOLD buttons until the correct
number is selected for the position.
4. Depress REL% or HOLD buttons until correct number is
selected for that display position.
5. Depress the REC button. The next digit to the right of 3
above will start to flash.
5. Depress the REC button. The next digit to the right of 3
above will start to flash.
6. Repeat steps 4 and 5 until the correct values for all eight
digits under LOW and HIGH sub-display are entered.
6. Repeat steps 4 and 5 until correct values for all four digits
under REF sub-display are entered.
7. After the correct LOW and HIGH values are entered,
depress the EDIT button.
7. After the correct REF value is entered, depress the EDIT
button.
8. Measure the circuit or component being compared to the
programmed values. Results will be displayed as PASS
for the acceptable readings, LO for low readings, and HI
for high readings.
8. Measure the circuit or component being compared to the
programmed reference value. Results will be displayed as
a percentage in the lower left hand left hand sub-display.
9. Depress the COMP button or turn the rotary switch to exit
the function.
29
k. Relative % Mode
9. Depress the REL% button or turn the rotary switch to exit
the function.
30
j. Compare Mode
The compare mode takes the actual reading on the main
display and compares it to LOW and HIGH values,
programmed by the user, on the sub-displays. This is used
to compare components or measurements for acceptable
readings. Activate the function as follows:
The Relative % mode takes the actual reading on the main
display and compares it to a reference value programmed by
the user on the right hand sub-display. The left hand subdisplay will show the percentage the actual reading varies
from the reference value. Activate the function as follows:
1. To use Compare Mode manually select the correct
range for the function.
1. To use Relative % mode manually select the range for
the function.
2. Depress the COMP button.
2. Depress the REL% button.
3. Depress the EDIT button the right hand digit under the
HIGH sub-display will start to flash.
3. Depress the EDIT button. The right hand digit under the
REF sub-display will start to flash.
4. Depress the REL% or HOLD buttons until the correct
number is selected for the position.
4. Depress REL% or HOLD buttons until correct number is
selected for that display position.
5. Depress the REC button. The next digit to the right of 3
above will start to flash.
5. Depress the REC button. The next digit to the right of 3
above will start to flash.
6. Repeat steps 4 and 5 until the correct values for all eight
digits under LOW and HIGH sub-display are entered.
6. Repeat steps 4 and 5 until correct values for all four digits
under REF sub-display are entered.
7. After the correct LOW and HIGH values are entered,
depress the EDIT button.
7. After the correct REF value is entered, depress the EDIT
button.
8. Measure the circuit or component being compared to the
programmed values. Results will be displayed as PASS
for the acceptable readings, LO for low readings, and HI
for high readings.
8. Measure the circuit or component being compared to the
programmed reference value. Results will be displayed as
a percentage in the lower left hand left hand sub-display.
9. Depress the COMP button or turn the rotary switch to exit
the function.
29
k. Relative % Mode
9. Depress the REL% button or turn the rotary switch to exit
the function.
30
l. Two-Hold System
The two-hold system is a data hold feature that will
automatically store a stable reading under the 1 HOLD subdisplay in the lower left hand corner of the LCD. When a
new, stable reading is obtained, the reading under 1 HOLD
will be moved to 2 HOLD and the new reading will be
displayed under 1 HOLD
Depress the HOLD button to activate the feature.
Push the button again to de-activate the feature.
m. Using the Current Output Functions
The meter provides steady, stepped, and ramped current
output for testing 0-20 mA and 4-20 mA current loops.
Choose source mode, in which the meter supplies the
current, simulate mode, in which the meter regulates
1) Source Mode
Source mode is selected automatically by inserting the
test leads into the SOURCE + and - jacks. Use source
mode whenever it is necessary to supply current into a
passive circuit such as a current loop with no loop supply.
Source mode depletes the battery faster than simulate
mode, so use simulate mode whenever possible. The
display looks the same in source and simulate modes.
The way to tell which mode is in use is to see which pair
of output jacks is in use.
2) Simulate Mode
Simulate mode is so named because the meter simulates
a current loop transmitter. Use simulate mode when an
external dc voltage of 15 to 48 V is in series with the
current loop under test.
CAUTION
Set the rotary function switch to one of the mA output
settings BEFORE connecting the test leads to a current
loop. Otherwise, a low impedance from the other rotary
function switch positions could be presented to the loop,
causing up to 35 mA to flow in the loop.
Simulate mode is selected automatically by inserting the test
leads into the SIMULATE + and - jacks. Simulate mode
conserves battery life, so use it instead of source mode
whenever possible. The display looks the same in source
and simulate modes. The way to tell which mode is in use is
to see which pair of output jacks is in use.
31
32
l. Two-Hold System
The two-hold system is a data hold feature that will
automatically store a stable reading under the 1 HOLD subdisplay in the lower left hand corner of the LCD. When a
new, stable reading is obtained, the reading under 1 HOLD
will be moved to 2 HOLD and the new reading will be
displayed under 1 HOLD
Depress the HOLD button to activate the feature.
Push the button again to de-activate the feature.
m. Using the Current Output Functions
The meter provides steady, stepped, and ramped current
output for testing 0-20 mA and 4-20 mA current loops.
Choose source mode, in which the meter supplies the
current, simulate mode, in which the meter regulates
1) Source Mode
Source mode is selected automatically by inserting the
test leads into the SOURCE + and - jacks. Use source
mode whenever it is necessary to supply current into a
passive circuit such as a current loop with no loop supply.
Source mode depletes the battery faster than simulate
mode, so use simulate mode whenever possible. The
display looks the same in source and simulate modes.
The way to tell which mode is in use is to see which pair
of output jacks is in use.
2) Simulate Mode
Simulate mode is so named because the meter simulates
a current loop transmitter. Use simulate mode when an
external dc voltage of 15 to 48 V is in series with the
current loop under test.
CAUTION
Set the rotary function switch to one of the mA output
settings BEFORE connecting the test leads to a current
loop. Otherwise, a low impedance from the other rotary
function switch positions could be presented to the loop,
causing up to 35 mA to flow in the loop.
Simulate mode is selected automatically by inserting the test
leads into the SIMULATE + and - jacks. Simulate mode
conserves battery life, so use it instead of source mode
whenever possible. The display looks the same in source
and simulate modes. The way to tell which mode is in use is
to see which pair of output jacks is in use.
31
32
Changing the Current Span
The meter’s current output span has two settings (with
overrange to 24 mA):
Table 2. mA Stepping Pushbuttons
Buttons
Adjustment
STEP
●
4 mA = 0 %, 20 mA = 100 %
●
0 mA = 0 %, 20 mA = 100 %(factory default)
To find out which span is selected, short the OUTPUT
SOURCE + and - jacks, turn the rotary function switch to
OUTPUT [ mA, and observe the 0 % output level. To toggle
and save the current output span in nonvolatile memory
(retained when the power is turned off):
1. Turn off the meter.
2. Hold down RANGE while turning the meter on.
3. Wait at least 2 seconds, then release RANGE.
REC
Adjusts up to the next higher 25 % step
COMP
Adjusts up to the next lower 25 % step
4) Manually Stepping the mA Output
When the rotary function switch is in the OUTPUT [ mA
position, and the OUTPUT jacks are connected to an
appropriate load, the meter produces a steady mA dc output.
The meter begins sourcing or simulating 0 %. Use the
pushbuttons to step the current up and down in 25 %
increments as shown in Table 2. See Table 3 for mA values
at each 25 % step. Select either sourcing or simulating by
choosing the SOURCE or SIMULATE output jacks
Note
3) Producing a Steady mA Output
When the rotary function switch is in the OUTPUT [ mA
position, and the OUTPUT jacks are connected to an
appropriate load, the meter produces a steady mA dc output.
The meter begins sourcing or simulating 0 %. Use the
pushbuttons to adjust the current as shown in Table 1.
Select either sourcing or simulating by choosing the
SOURCE or SIMULATE output jacks.
The COARSE and FINE adjustment pushbuttons described
in Table 1 are available when manually stepping the mA
output.
Table3. mA step Value
Value(for each span setting)
STEP
4 to 20mA
0 to 20mA
0%
4.000mA
0.000mA
25 %
8.000mA
5.000mA
50 %
12.000mA
10.000mA
75 %
16.000mA
15.000mA
100 %
20.000mA
20.000mA
Note
The STEP pushbuttons described Table 9 are available
when the meter is producing a steady mA output. The
STEP pushbuttons go to the next multiple of 25 %.
Table 1. mA Output Adjust Pushbuttons
Buttons
Adjustment
Buttons
COARSE
33
Adjustment
FINE
120 %
125 %
REL
Adjusts up 0.1mA
EDIT
Adjusts up 0.001mA
HOLD
Adjusts Down 0.1mA
ORANGE
Adjusts Down 0.001mA
24.000mA
24.000mA
34
Changing the Current Span
The meter’s current output span has two settings (with
overrange to 24 mA):
Table 2. mA Stepping Pushbuttons
Buttons
Adjustment
STEP
●
4 mA = 0 %, 20 mA = 100 %
●
0 mA = 0 %, 20 mA = 100 %(factory default)
To find out which span is selected, short the OUTPUT
SOURCE + and - jacks, turn the rotary function switch to
OUTPUT [ mA, and observe the 0 % output level. To toggle
and save the current output span in nonvolatile memory
(retained when the power is turned off):
1. Turn off the meter.
2. Hold down RANGE while turning the meter on.
3. Wait at least 2 seconds, then release RANGE.
REC
Adjusts up to the next higher 25 % step
COMP
Adjusts up to the next lower 25 % step
4) Manually Stepping the mA Output
When the rotary function switch is in the OUTPUT [ mA
position, and the OUTPUT jacks are connected to an
appropriate load, the meter produces a steady mA dc output.
The meter begins sourcing or simulating 0 %. Use the
pushbuttons to step the current up and down in 25 %
increments as shown in Table 2. See Table 3 for mA values
at each 25 % step. Select either sourcing or simulating by
choosing the SOURCE or SIMULATE output jacks
Note
3) Producing a Steady mA Output
When the rotary function switch is in the OUTPUT [ mA
position, and the OUTPUT jacks are connected to an
appropriate load, the meter produces a steady mA dc output.
The meter begins sourcing or simulating 0 %. Use the
pushbuttons to adjust the current as shown in Table 1.
Select either sourcing or simulating by choosing the
SOURCE or SIMULATE output jacks.
The COARSE and FINE adjustment pushbuttons described
in Table 1 are available when manually stepping the mA
output.
Table3. mA step Value
Value(for each span setting)
STEP
4 to 20mA
0 to 20mA
0%
4.000mA
0.000mA
25 %
8.000mA
5.000mA
50 %
12.000mA
10.000mA
75 %
16.000mA
15.000mA
100 %
20.000mA
20.000mA
Note
The STEP pushbuttons described Table 9 are available
when the meter is producing a steady mA output. The
STEP pushbuttons go to the next multiple of 25 %.
Table 1. mA Output Adjust Pushbuttons
Buttons
Adjustment
Buttons
COARSE
33
Adjustment
FINE
120 %
125 %
REL
Adjusts up 0.1mA
EDIT
Adjusts up 0.001mA
HOLD
Adjusts Down 0.1mA
ORANGE
Adjusts Down 0.001mA
24.000mA
24.000mA
34
Auto Ramping the mA Output
Auto ramping gives the ability to continuously apply a
varying current stimulus from the meter to a transmitter,
while hands remain free to test the response of the
transmitter. Select either sourcing or simulating by choosing
the SOURCE or SIMULATE jacks.
n. Loop Power Supply Mode
The Loop Power Supply Mode can be used for powering up
a process instrument (transmitter). While in Loop Power
Mode, the meter acts like a battery. The process instrument
regulates the current.
When the rotary function switch is in the OUTPUT mA
position, and the output jacks are connected to an
appropriate load, the meter produces a continuously
repeating 0 % - 100 % - 0 % ramp in a choice of four ramp
waveforms:
0 % - 100 % - 0 % 40-second smooth ramp
0 % - 100 % - 0 % 15-second smooth ramp
0 % - 100 % - 0 % Stair-step ramp in 25 % steps,
pausing 5 seconds at each step. Steps
are listed in Table 3.
The ramp times are not adjustable.
35
36
Auto Ramping the mA Output
Auto ramping gives the ability to continuously apply a
varying current stimulus from the meter to a transmitter,
while hands remain free to test the response of the
transmitter. Select either sourcing or simulating by choosing
the SOURCE or SIMULATE jacks.
n. Loop Power Supply Mode
The Loop Power Supply Mode can be used for powering up
a process instrument (transmitter). While in Loop Power
Mode, the meter acts like a battery. The process instrument
regulates the current.
When the rotary function switch is in the OUTPUT mA
position, and the output jacks are connected to an
appropriate load, the meter produces a continuously
repeating 0 % - 100 % - 0 % ramp in a choice of four ramp
waveforms:
0 % - 100 % - 0 % 40-second smooth ramp
0 % - 100 % - 0 % 15-second smooth ramp
0 % - 100 % - 0 % Stair-step ramp in 25 % steps,
pausing 5 seconds at each step. Steps
are listed in Table 3.
The ramp times are not adjustable.
35
36
o. RS-232C interface
Push button code
Demonstration software is provided with the DMM. The
program is written for windows using MFC. For you own
applications, consult the following;
1. Specification
Baud rate
Parity
Data length
Stop bit
19200 baud
none
8 bit
1 bit
ref2 is the sub display value on the right lower part of the
LCD.
ex)“1 DCV 12.345 mV HIGH 10.000 11.000 crlf”
Output and Input of all data are ASCII String.
Send Format( DMM to PC )
“fun b sign value b unit b cr lf”
Function(ASCII code)
blank(0x20)
-(0x2E)/ (0x20)
Measured value(ASCII string)
Unit(ASCII string)
Carriage Return
Line Feed
Function code
Function
DCmV
DCV
ACV
Diode
Ohm/Continuity
Capacitance
Frequency
uA
mA
A
Adaptor
Current out
37
Code
RANGE AUTO/ RANGE MANUAL
REC ON/ REC AVG/ REC OFF
REL ON ref2/ REL OFF
COMP ON ref1 ref2/ COMP OFF
HOLD ON/ HOLD OFF
★) ref1 is the sub display on the left lower part of the LCD,
2. Transmitte format(DMM to PC)
fun
b
Sign
Value
unit
cr
lf
Push key
RANGE
REC
REL
COMP
HOLD
:“1”indicates the push button is being operated and
mean the DCV function. The real value is 12.345mV. The
main display shows“HI”. The left lower part of the LCD
shows 10.000mV and the right lower part of the LCD
shows 11.000mV.
“2 DCV -1.2345 mV crlf”
“2 mA 0 + 04.000mA + 000.00 crlf”
:“2”indicates the push button is being off and Outputs
the value being displayed on the Main display.
“3 REL ON crlf”
Function code
DCV
DCV
ACV
DIO
OHM/BEP
CAP
FRQ
DCA/ACA
DCA/ACA
DCA/ACA
AC/DC1,2,3 TMP
mA 0, A, B, C, 2
Unit
mV
V
V
V
Ohm/ Kohm/ Mohm
uF/mF
Hz/ Khz
uA
mA
A
A / tC/ tF
mA
: Indicates the REL % key is being pressed.
Receive Format( PC to DMM )
REL ON ref2
Activates REL %.(If the value is input on
ref2, it sets with value)
REL OFF
Deactivates REL %
REC ON
Activates the record mode to the normal
mode.
REC AVG
Activates the record mode to the AVG
mode.
38
o. RS-232C interface
Push button code
Demonstration software is provided with the DMM. The
program is written for windows using MFC. For you own
applications, consult the following;
1. Specification
Baud rate
Parity
Data length
Stop bit
19200 baud
none
8 bit
1 bit
ref2 is the sub display value on the right lower part of the
LCD.
ex)“1 DCV 12.345 mV HIGH 10.000 11.000 crlf”
Output and Input of all data are ASCII String.
Send Format( DMM to PC )
“fun b sign value b unit b cr lf”
Function(ASCII code)
blank(0x20)
-(0x2E)/ (0x20)
Measured value(ASCII string)
Unit(ASCII string)
Carriage Return
Line Feed
Function code
Function
DCmV
DCV
ACV
Diode
Ohm/Continuity
Capacitance
Frequency
uA
mA
A
Adaptor
Current out
37
Code
RANGE AUTO/ RANGE MANUAL
REC ON/ REC AVG/ REC OFF
REL ON ref2/ REL OFF
COMP ON ref1 ref2/ COMP OFF
HOLD ON/ HOLD OFF
★) ref1 is the sub display on the left lower part of the LCD,
2. Transmitte format(DMM to PC)
fun
b
Sign
Value
unit
cr
lf
Push key
RANGE
REC
REL
COMP
HOLD
:“1”indicates the push button is being operated and
mean the DCV function. The real value is 12.345mV. The
main display shows“HI”. The left lower part of the LCD
shows 10.000mV and the right lower part of the LCD
shows 11.000mV.
“2 DCV -1.2345 mV crlf”
“2 mA 0 + 04.000mA + 000.00 crlf”
:“2”indicates the push button is being off and Outputs
the value being displayed on the Main display.
“3 REL ON crlf”
Function code
DCV
DCV
ACV
DIO
OHM/BEP
CAP
FRQ
DCA/ACA
DCA/ACA
DCA/ACA
AC/DC1,2,3 TMP
mA 0, A, B, C, 2
Unit
mV
V
V
V
Ohm/ Kohm/ Mohm
uF/mF
Hz/ Khz
uA
mA
A
A / tC/ tF
mA
: Indicates the REL % key is being pressed.
Receive Format( PC to DMM )
REL ON ref2
Activates REL %.(If the value is input on
ref2, it sets with value)
REL OFF
Deactivates REL %
REC ON
Activates the record mode to the normal
mode.
REC AVG
Activates the record mode to the AVG
mode.
38
REC OFF
Deactivates Record mode
COMP ON ref1 ref2
39
Activates COMP.(If value is input
on the meter uses these as high &
low limit of compare)
COMP OFF
Deactivates COMP mode
HOLD ON
Activates HOLD mode
HOLD OFF
Deactivates HOLD mode
SKEY f
Indicates status of the function f is REL,
REC, COMP, HOLD, RANGE.
DMM STOP
DMM GO
Set the RS-232C to stop mode.
Set the RS-232C to start mode.
DMM SINGLE
Output only one single data( one string )
on the DMM(you can keep getting data by
using this command)
E. ACCESSORIES
Standard Accessories
Part NO.
9 Volt Alkaline Battery
Fuse 0.5A
Fuse 10A
Test lead
Rubber boot
Optional Accessories
Accessories
Demonstration Software
Deluxe Test lead set
IEC 1010 Deluxe test lead kit
Temperature Adaptor
Current Adaptor 10/60A
Current Adaptor 40/400A
Current Adaptor 400/1000A
Carrying case
Part NO.
A301
A254
A256
A296
40
REC OFF
Deactivates Record mode
COMP ON ref1 ref2
39
Activates COMP.(If value is input
on the meter uses these as high &
low limit of compare)
COMP OFF
Deactivates COMP mode
HOLD ON
Activates HOLD mode
HOLD OFF
Deactivates HOLD mode
SKEY f
Indicates status of the function f is REL,
REC, COMP, HOLD, RANGE.
DMM STOP
DMM GO
Set the RS-232C to stop mode.
Set the RS-232C to start mode.
DMM SINGLE
Output only one single data( one string )
on the DMM(you can keep getting data by
using this command)
E. ACCESSORIES
Standard Accessories
Part NO.
9 Volt Alkaline Battery
Fuse 0.5A
Fuse 10A
Test lead
Rubber boot
Optional Accessories
Accessories
Demonstration Software
Deluxe Test lead set
IEC 1010 Deluxe test lead kit
Temperature Adaptor
Current Adaptor 10/60A
Current Adaptor 40/400A
Current Adaptor 400/1000A
Carrying case
Part NO.
A301
A254
A256
A296
40
F. MAINTENANCE
1. Battery Replacement: The DMM 196 will display AT
when the 9 volt battery needs replacement. Battery
replaced as following:
G. TROUBLE SHOOTING GUIDE
Problem
Does not power up
• Dead or defective battery
• Broken wire from battery
snap to PCB
a. Disconnect and remove all test leads from live circuit
and from DMM 196.
b. Remove DMM 196 from protective boot.
c. Remove the three screws from battery cover of back
d. Remove old batteries and replace with new batteries.
e. Reassemble instrument in reverse order from above.
2. Fuse Replacement: Both the A and mA/uA input jacks
are fuse protected. Use only Fast blow, 600V fuses with
correct current ratings. Failure to do so will void all
Warranties. If either do not function, replace as Following:
Probable Causes
Won’t display current readings
• Open fuse
• Open test lead
• Improperly connected to
circuit under test
All functions except ohms read high
• Very weak battery that will
not turn on the low battery
indicator on the LCD
ACV do not read
• Very weak battery that will
not turn on the low battery
indicator on the LCD
a. Disconnect and remove all test leads from live circuit
and from DMM 196.
b. Remove DMM 196 from protective boot.
c. Remove the three screws from battery cover of back
d. Remove old fuse(s) and replace it with new fuse(s).
e. Reassemble instrument in reverse order from above.
f. Fuse must be changed by replacement in service center.
3. Cleaning your DMM 196
Use a mild detergent and a slightly damp cloth to clean the
surfaces of the DMM 196.
41
WARRANTY
Please refer to product warranty card for warranty
statement.
42
F. MAINTENANCE
1. Battery Replacement: The DMM 196 will display AT
when the 9 volt battery needs replacement. Battery
replaced as following:
G. TROUBLE SHOOTING GUIDE
Problem
Does not power up
• Dead or defective battery
• Broken wire from battery
snap to PCB
a. Disconnect and remove all test leads from live circuit
and from DMM 196.
b. Remove DMM 196 from protective boot.
c. Remove the three screws from battery cover of back
d. Remove old batteries and replace with new batteries.
e. Reassemble instrument in reverse order from above.
2. Fuse Replacement: Both the A and mA/uA input jacks
are fuse protected. Use only Fast blow, 600V fuses with
correct current ratings. Failure to do so will void all
Warranties. If either do not function, replace as Following:
Probable Causes
Won’t display current readings
• Open fuse
• Open test lead
• Improperly connected to
circuit under test
All functions except ohms read high
• Very weak battery that will
not turn on the low battery
indicator on the LCD
ACV do not read
• Very weak battery that will
not turn on the low battery
indicator on the LCD
a. Disconnect and remove all test leads from live circuit
and from DMM 196.
b. Remove DMM 196 from protective boot.
c. Remove the three screws from battery cover of back
d. Remove old fuse(s) and replace it with new fuse(s).
e. Reassemble instrument in reverse order from above.
f. Fuse must be changed by replacement in service center.
3. Cleaning your DMM 196
Use a mild detergent and a slightly damp cloth to clean the
surfaces of the DMM 196.
41
WARRANTY
Please refer to product warranty card for warranty
statement.
42
196 Specifications ±0.05% Basic DCV Accuracy
Function
Range
Resolution
DCV
50mV
500mV
5V
50V
500V
1000V
0.001mV
0.01mV
0.0001V
0.001V
0.01V
0.1V
ACV
5V
50V
500V
750V
0.0001V
0.001V
0.01V
0.1V
DCA/ACA
5mA
50mA
500mA
1A
0.0001mA
0.001mA
0.01mA
0.0001A
OHM
500Ω
5kΩ
50kΩ
500kΩ
5MΩ
50MΩ
0.1Ω
0.0001kΩ
0.001kΩ
0.01kΩ
0.0001MΩ
0.001MΩ
Current out
0~24mA
0.001mA
Frequency
500Hz
5KHz
50KHz
500KHz
0.01Hz
0.0001KHz
0.001KHz
0.01KHz
Diode
Test Products International, Inc.
9615 SW Allen Blvd., Ste. 104
Beaverton, OR USA 97005
503-520-9197 • Fax: 503-520-1225 •tpiusa@msn.com
Continuity
Test Voltage
Test Current
Approx. 3V
Approx. 1mA
Test Voltage
Threshold
Approx. 3V
30 Digits
Test Products International, Ltd.
2 Newcourt Business Park
Perry Road Harlow, Essex CM18 7PR England
Tel: 01279 439647 • Fax: 01279 450553
L190 • 1/26/04 copyright ⓒ 2004 Test Products International, Inc.
See pages 10~13 for detail specifications.
Test Products International, Inc.
196 Specifications ±0.05% Basic DCV Accuracy
Function
Range
Resolution
DCV
50mV
500mV
5V
50V
500V
1000V
0.001mV
0.01mV
0.0001V
0.001V
0.01V
0.1V
ACV
5V
50V
500V
750V
0.0001V
0.001V
0.01V
0.1V
DCA/ACA
5mA
50mA
500mA
1A
0.0001mA
0.001mA
0.01mA
0.0001A
OHM
500Ω
5kΩ
50kΩ
500kΩ
5MΩ
50MΩ
0.1Ω
0.0001kΩ
0.001kΩ
0.01kΩ
0.0001MΩ
0.001MΩ
Current out
0~24mA
0.001mA
Frequency
500Hz
5KHz
50KHz
500KHz
0.01Hz
0.0001KHz
0.001KHz
0.01KHz
Diode
Test Products International, Inc.
9615 SW Allen Blvd., Ste. 104
Beaverton, OR USA 97005
503-520-9197 • Fax: 503-520-1225 •tpiusa@msn.com
Continuity
Test Voltage
Test Current
Approx. 3V
Approx. 1mA
Test Voltage
Threshold
Approx. 3V
30 Digits
Test Products International, Ltd.
2 Newcourt Business Park
Perry Road Harlow, Essex CM18 7PR England
Tel: 01279 439647 • Fax: 01279 450553
L190 • 1/26/04 copyright ⓒ 2004 Test Products International, Inc.
See pages 10~13 for detail specifications.
Test Products International, Inc.