Isolated Analog Signal Conditioning Products
S C M 5 B
SCM5B40/41
Analog Voltage Input Modules, Wide Bandwidth
Description
ach S
B and S
B wide bandwidth voltage input module
provides a single channel of analog input which is amplified, isolated,
and converted to a high-level analog voltage output (Figure 1). This
voltage output is logic-switch controlled, allowing these modules to share a
common analog bus without the re uirement of external multiplexers.
Features
• Accepts Millivolt and Voltage Level Signals
• High-Level Voltage Outputs
The SCM5B modules are designed with a completely isolated computer
side circuit which can be oated to
from Power ommon, pin .
This complete isolation means that no connection is re uired between I O
Common and Power Common for proper operation of the output switch.
If desired, the output switch can be turned on continuously by simply
connecting pin , the Read nable pin, to I O ommon, pin .
• 1500Vrms Transformer Isolation
The input signal is processed through a wide bandwidth pre amplifier
on the field side of the isolation barrier. After amplification, the input
signal is chopped by a proprietary chopper circuit. Isolation is provided by
transformer coupling, again using a proprietary technique to suppress
transmission of common mode spikes or surges. The module is powered
from +5VDC, ± 5%.
• ± 0.03% Accuracy
A special input circuit on the SCM5B40 and SCM5B41 modules provides
protection against accidental connection of power-line voltages up to
240VAC.
F i g u r e 1 : S C M 5 B 4 0 / 4 1 B l o ck
• ANSI/IEEE C37.90.1 Transient Protection
• Input Protected to 240VAC Continuous
• 100dB CMR
• 10kHz Signal Bandwidth
• ± 0.01% Linearity
Drift
SA
S ertified
• CE and ATEX Compliant
• Mix and Match SCM5B Types on Backpanel
D ia g r a m
2 8
©1995-2017 Dataforth Corporation, All Rights Reserved
For information call 800-444-7644
ISO9001:2008-Registered QMS
Specifications
Typical❇ at TA
Module
Input Range
Input Bias Current
Input Resistance
Normal
and
Ordering Information
D power
SCM5B40
SCM5B41
± 10mV to ± 1V
± 0.5nA
± 1V to ± 40V
± 0.05nA
Overload
CMV, Input to Output
Continuous
Transient
CMR (50Hz or 60Hz)
NMR (– 3dB at 10kHz)
Accuracy
Linearity
Stability
Input Offset
Output Offset
Gain
Noise
Input, 0.1 to 10Hz
Output, 100kHz
Bandwidth, – 3dB
Rise Time, 10 to 90% Span
Settling Time, to 0.1%
(1)
240Vrms max
ANSI/IEEE C37.90.1
1500Vrms max
ANSI/IEEE C37.90.1
100dB
dB per Decade above
*
*
*
*
*
*
H
± 0.03% Span
± 0.01% Span
*
ppm
*
ppm
. rms
10mVp-p
10kHz
s
s
*
*
*
*
*
Continuous Short to Ground
s at load = 0 to 2000pF
*
Output nable ontrol
Max Logic “0”
Min Logic “1”
Max Logic “1”
Input Current “0,1”
+0.8V
+2.4V
+36V
. A
Output Range†
SCM5B40-01
SCM5B40-02
SCM5B40-03
SCM5B40-04
SCM5B40-05
SCM5B40-06
SCM5B40-07(3)
– 10mV to +10mV
– 50mV to +50mV
– 100mV to +100mV
– 10mV to +10mV
– 50mV to +50mV
– 100mV to +100mV
– 1V to +1V
1, 2
1, 2
1, 2
3, 4
3, 4
3, 4
1, 2
SCM5B41-01
SCM5B41-02
SCM5B41-03
SCM5B41-04
SCM5B41-05
SCM5B41-06
SCM5B41-07
SCM5B41-08
SCM5B41-09
SCM5B41-10
– 1V to +1V
– 5V to +5V
10V to +10V
– 1V to +1V
– 5V to +5V
10V to +10V
20V to +20V
20V to +20V
40V to +40V
40V to +40V
1, 2
1, 2
1, 2
3, 4
3, 4
3, 4
1, 2
3, 4
1, 2
3, 4
–
–
–
–
–
–
Output Ranges Available
*
See Ordering Information
Input Range
†
rms
Output Range
Output Resistance
Output Protection
Output Selection Time
(to ± 1mV of VOUT )
Output Current Limit
Output Range
1.
2. –
3.
4.
– 5V to +5V
10V to +10V
0V to +5V
0V to +10V
Part o u fi
NONE
D
NONE
D
am e
SCM5B40-01
SCM5B40-01D
SCM5B40-04
SCM5B40-04D
*
*
± 8mA
*
*
*
*
+5VDC ± 5%
30mA
RTI(2)
Mechanical Dimensions
(h)(w)(d)
2.28” x 2.26” x 0.60”
(58mm x 57mm x 15mm)
*
to
to
0 to 95% Noncondensing
ISM, Group 1
Class A
ISM, Group 1
Performance A ± 0.5% Span Error
Performance B
*
*
Power Supply Voltage
Power Supply Current
Power Supply Sensitivity
Environmental
Operating Temp. Range
Storage Temp. Range
Relative Humidity
Emissions EN61000-6-4
Radiated, Conducted
Immunity EN61000-6-2
RF
ESD,EFT
Model
thru
thru
thru
thru
thru
thru
Power Off
Input Protection
Continuous
Transient
S C M 5 B
*
*
RTI(2)
*
*
*
*
*
*
*
NOTES:
❇
ontact factory or your local Dataforth sales office for maximum values.
Same specification as S
B .
Includes linearity, hysteresis and repeatability.
(2) RTI = Referenced to input.
Same as S
B
with
input resistance.
Visit our website www.dataforth.com
©1995-2017 Dataforth Corporation, All Rights Reserved
2 9
ISO9001:2008-Registered QMS
S C M 5 B
Isolated Analog Signal Conditioning Products
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