Conductive Level Controller
61F-D21T-V1
CSM_61F-D21T-V1_DS_E_1_1
Ideal for level control for industrial facilities
and equipment.
• Outputs can be set to self-hold at ON or OFF using self-holding
circuits.
• Sensitivity adjustment of operating resistance from 10 to
100 kΩ for application to a wide range of liquids.
• Delay timer to prevent relay contact chattering caused by
waves.
• Models with a wide AC power supply range (100 to 240 VAC)
and 24 VAC/DC reduce the number of level controller models
kept in stock.
• CE marking, cUL recognized.
• Easy wiring with ferrules
2 × 2.5 mm2 solid or 2 × 1.5 mm2 standard ferrules.
Model Number Structure
■ Model Number Legend
61F-@@
1
2 3
1. Basic Model
61F:
Conductive Level Controller
2. Functions
D21T-V1:
Automatic liquid supply operation/
Automatic liquid drainage operation
3. Supply Voltage
24 VAC/DC:
24 VAC/DC
100-240 VAC: 100 to 240 VAC
1
61F-D21T-V1
Ordering Information
■ List of Models
Conductive Level Controller
Supply voltage
Model
24 VAC/DC
61F-D21T-V1 24 VAC/DC
100 to 240 VAC
61F-D21T-V1 100 to 240 VAC
Specifications
Rated voltage
24 VAC, 50/60 Hz, or 24 VDC
100 to 240 VAC, 50/60 Hz
Operating voltage range
85% to 110% of rated voltage
Voltage between electrodes
6 V p-p (approx. 20 Hz)
Power consumption
24 VDC: 2 W max.
24 VAC: 4 VA max.
100 to 240 VAC: 5 VA max.
Operating resistance
10 kΩ to 100 kΩ (variable)
Reset resistance
250 kΩ max.
Response time
Approx. 0.1 to 10 s (variable)
Cable length
100 m max. with completely insulated (600 V) cabtire cable with 3 conductors (0.75 mm2)
Control output
6 A at 250 VAC for resistive load at 20°C, 1 A at 250 VAC for inductive load cosφ = 0.4 at 20°C
Indicators
Green LED: Power, Yellow LED: Control output
Ambient temperature
Operating: −20 to 60°C, Storage: −30 to 70°C (with no condensation or icing)
Ambient humidity
Operating: 25% to 85%, Storage: 25% to 85%
Elevation
2,000 m max.
Insulation resistance
100 MΩ min. (at 500 VDC) between power supply section, electrode section, and contact section
Dielectric strength
2,000 VAC 50/60 Hz for 1 min between power source section, electrode section, and contact section
Vibration resistance
Vibration of 10 to 55 Hz and acceleration of 50 m/s2 for 5 min. 10 times each in X, Y, and Z directions
Shock resistance
100 m/s2 3 times each in 6 directions on 3 axes
Installation environment
Overvoltage Category II, Pollution Degree 2
Safety standards
EN61010-1
EMC
EN61326 Industrial applications
2
61F-D21T-V1
Connections
■ Operation Diagram
PWR
■ Wiring Diagram
24 VAC/DC 100-240 VAC
A1
E2-E3
E1-E3
A2
E3
ON
RY:SW1
E2
OFF
E1
14
11
Control
12 output
E1
E2
E3
2. Drainage (RY-SW1 OFF)
1. Water Supply (RY-SW1 ON)
P
Pump OFF
Pump ON
Indicator ON
E1
Indicator OFF
E2
E3
• Connect electromagnetic switch coil terminal A to terminal 2.
• The pump stops when the water level reaches E1 (indicator ON)
and starts when the water level drops below E2 (indicator OFF).
Indicator OFF
E1
Pump ON
Indicator ON
E2
P
E3
Pump OFF
• Connect the electromagnetic switch coil terminal A to terminal 3.
• The pump starts when the water level reaches E1 (indicator OFF)
and stops when the water level drops below E2 (indicator ON).
3
61F-D21T-V1
Nomenclature
■ Front
■ DIP Switch Settings
ON
OFF
Operating resistance knob
Power indicator
Relay status indicator
SW1
SW2
SW3
SW4
Operating time knob
: ON
DIP switch
: OFF
SW
1 2 3 4
OFF
ON
NOT USED
Indicators
Item
Power indicator (PWR: Green)
NOT USED
Meaning
Lit when power is being
supplied.
Relay status indicator (RY: Yellow) Lit when relay is operating.
NOT USED
DIP Switch Functions
SWITCH
Setting Knobs
Item
Usage
Operating resistance knob
Used to set the operating
resistance to 10 to 100 kΩ.
Operating time knob
Use to set the operating time to
0.1 to 10 s.
ON ● ↑
4
3
2
1
Not
used.
Not
used.
●
ON
OFF ❍ ↓ OFF
Supply/
Automatic liquid
Not
drainage drainage
used.
selection operation
Automatic liquid
supply operation
❍
Note: All pins are set to OFF at the factory.
4
61F-D21T-V1
Dimensions
61F-D21T-V1
Unit: mm
100
72
(5)
90
(5)
22.5
*Installation Procedure: Mount to the DIN Rail or with front screws
*Dimensions for Mounting with Front Screws
102
Two, M4 screws or Two, 4.5-dia. holes
Note: When mounting with front screws, draw out the hooks on
the bottom of the product on the left and right sides.
Installation Procedure
DIN Rail
• Pull down the hook, fasten the upper tab onto the Rail, and then
press the Controller onto the Rail until the hook locks into place.
Attach the 61F-D21T-V1 to a DIN Rail.
• DIN Rails: PFP-100N (1,000 mm)
PFP-50N (500 mm)
Separator
• F03-14
Recommended Crimp Terminals
Recommended crimp terminal Recommended cable diameter
Uninstallation Procedure
• Using a flat-blade screwdriver or a similar tool, pull down the hook
and lift the Controller from the bottom.
AI 1,5-8BK
(Phoenix Contact)
AWG16
AI 1-8RD
(Phoenix Contact)
AWG18
AI 0,75-8GY
(Phoenix Contact)
AWG18
5
61F-D21T-V1
Safety Precautions
Definition of Precaution Information
!CAUTION
Indicates a potentially hazardous situation
which, if not avoided, may result in minor or
moderate injury or in property damage.
Precautionary Information
!Caution
Do not touch the terminals while power is being supplied.
Doing so may possibly result in electric shock.
■ Precautions for Safe Use
• Do not disassemble, repair, or modify the product.
• When attaching the product to the DIN rail, attach it firmly with
screws.
• When attaching the product to the DIN rail, ensure that the product
has been attached firmly.
• If the thickness of a mounting panel is not adequate, or a mistake
has been made during installation, the product may become
disconnected.
• Ensure that terminal screws have been tightened firmly.
Recommended torque: 0.49 N·m
Assured torque: 0.59 N·m
• When using the product, ensure that the wiring is correct before
turning on the power.
• Use a power-supply voltage that is within the range of
specifications.
• Use the control source and power supply or power lines that
provide inputs with appropriate specifications.
• Do not install near heat-generating devices (coils, or devices that
use coils).
• Be sure to confirm terminal numbers for correct wiring.
• Ensure that wiring is correct. Double-check materials such as
connection charts and circuit diagrams.
• Properly ground the grounding terminal. Ensure that the common
electrode terminal has been properly grounded. Doing so can
alleviate effects from noise.
• If electrodes make contact with liquid, purchase and use a
separator to prevent such contact.
• Keep appropriate distance from devices that generate highfrequency noise (e.g., high-frequency welders, electronic sewing
machines).
• Do not turn a setting volume beyond the scope of movement.
• Do not connect anything to unused terminals.
• Use SELV power supply with over load protection function for DC
power supply. The insulation of SELV power supply must be a
double or reinforced between input and output. The output voltage
shall be 30 Vr.m.s. and 42.4 V at peak, or use the power supply of
60 V DC max. Recommended power supply: type S8VS-06024@
(OMRON made)
Do not keep, install, or use this product
in the following environments.
• Outdoors, or places subject to direct sunlight or wearing weather.
• Places where temperature and humidity exceed the allowable
range of the product specifications.
• Places where there are extreme changes in temperature and
humidity, or icing or condensation may occur.
• Places subject to static electricity or inductive noise.
• Places subject to electrical fields.
• Places where vibrations or physical shocks are strong.
• Places where flammable gasses or flammable liquids exist.
• Places where corrosive gases (in particular, sulfuric or ammonia
gas) exist.
• Places with large amounts of dust or iron powders.
• Places where water or oil come in contact with the product.
• Places subject to salt-water splashes.
■ Precautions for Correct Use
For Proper Use
1. Make sure to use setting values appropriate for the controlled
object. Failure to do so can cause unintended operation, and may
result in accident or corruption of the product.
2. When discarding, properly dispose of the product as industrial
waste.
3. Only use this product within a board whose structure allows no
possibility for fire to escape.
4. To avoid damage to the exterior of the product, do not use organic
solvents (thinner, benzene) or agents with strong alkalinity or
acidity.
About Installation
1. When wiring, use only recommended crimp terminals.
2. Do not block areas around the product for proper dissipation of
heat. (If you do not secure space for heat dissipation, life cycle of
the product will be compromised.)
Noise Countermeasures
1. Do not install the product near devices generating strong high
frequency waves or surges.
2. When using a noise filter, check the voltage and current and
install it as close to the product as possible.
3. In order to prevent inductive noise, wire the lines connected to the
product separately from power lines carrying high voltages or
currents. Do not wire in parallel with or on the same cable as
power lines. Other measures for reducing noise include running
lines along separate ducts and using shield lines.
To avoid faulty operations,
malfunctions, or failure, observe the
following operating instructions.
1. During insulation resistance measurements, never apply the
megohmmeter across the electrode terminals.
2. Use a power supply that will reach rated voltage within 1 second.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
In the interest of product improvement, specifications are subject to change without notice.
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