Cat. No. N149-E1-03A Conductive Level Controller 61F-D21T-V1 1
Conductive Level Controller
61F-D21T-V1
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
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
123
61F-@@
2Conductive Level Controller 61F-D21T-V1 Cat. No. N149-E1-03A
Ordering Information
■List of Models
Specifications
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
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
Cat. No. N149-E1-03A Conductive Level Controller 61F-D21T-V1 3
Connections
■Operation Diagram ■Wiring Diagram
■Automatic Water Supply and Drainage Control
1. Water Supply (RY-SW1 OFF)
The pump stops when the water level reaches E1 (indicator OFF)
and starts when the water level drops below E2 (indicator ON).
2. Drainage (RY-SW1 ON)
The pump starts when the water level reaches E1 (indicator ON) and
stops when the water level drops below E2 (indicator OFF).
PWR
E2-E3
E1-E3
RY:SW1 OFF
ON
E3
E2
E1
E1
E2
E3
14
12
11
A1
A2
Control
output
24 VAC/DC 100-240 VAC
P
Pump OFF
Pump ON
Indicator OFF
Indicator ON
E
1
E
2
E
3
P
Pump OFF
Pump ON
Indicator ON
Indicator OFF
E
1
E
2
E
3
4Conductive Level Controller 61F-D21T-V1 Cat. No. N149-E1-03A
Nomenclature
■Front
Indicators
Setting Knobs
■DIP Switch Settings
DIP Switch Functions
Note: All pins are set to OFF at the factory.
Item Meaning
Power indicator (PWR: Green) Lit when power is being
supplied.
Relay status indicator (RY: Yellow) Lit when relay is operating.
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.
Operating time knob
Power indicator
Relay status indicator
Operating resistance kno
b
SWITCH ON ● ↑
OFF ❍ ↓
Supply/
drainage
selection
Automatic liquid
drainage
operation
Not
used.
Not
used.
Not
used.
●
Automatic liquid
supply operation
❍
ON
OFF
SW1
SW2
SW3
SW4
DIP switch
: OFF : ON
4
SW
NOT USED
NOT USED
NOT USED
OFF
ON
3 2 1
ON
OFF
432 1
Cat. No. N149-E1-03A Conductive Level Controller 61F-D21T-V1 5
Dimensions
Installation Procedure
•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.
Uninstallation Procedure
•Using a flat-blade screwdriver or a similar tool, pull down the hook
and lift the Controller from the bottom.
DIN Rail
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
22.5
(5)
90
100
72
(5)
Two, M4 screws or Two, 4.5-dia. holes
*Installation Procedure: Mount to the DIN Rail or with front screws
*Dimensions for Mounting with Front Screws
When mounting with front screws, draw out the hooks on
the bottom of the product on the left and ri
g
ht sides.
102
Note:
61F-D21T-V1 Unit: mm
Recommended crimp terminal Recommended cable diameter
AI 1,5-8BK
(Phoenix Contact)
AWG16
AI 1-8RD
(Phoenix Contact)
AWG18
AI 0,75-8GY
(Phoenix Contact)
AWG18
6Conductive Level Controller 61F-D21T-V1 Cat. No. N149-E1-03A
Safety Precautions
Definition of Precaution Information
Precautionary Information
■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 high-
frequency 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.
Indicates a potentially hazardous situation
which, if not avoided, may result in minor or
moderate injury or in property damage.
!CAUTION
!Caution
Do not touch the terminals while power is being supplied.
Doing so may possibly result in electric shock.
Cat. No. N149-E1-03A Conductive Level Controller 61F-D21T-V1 7
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
Cat. No. N149-E1-03A
Printed in Japan
0207-1M (C)
OMRON Corporation
Industrial Automation Company
Control Devices Division H.Q.
Shiokoji Horikawa, Shimogyo-ku,
Kyoto, 600-8530 Japan
Tel: (81)75-344-7109/Fax: (81)75-344-7149
Warranty and Application Considerations
Read and Understand this Catalog
Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any
questions or comments.
Warranty and Limitations of Liability
WARRANTY
OMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other
period if specified) from date of sale by OMRON.
OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT,
MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES
THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS
OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.
LIMITATIONS OF LIABILITY
OMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS, OR
COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT,
WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.
In no event shall the responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.
IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS
UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND
MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.
Application Considerations
SUITABILITY FOR USE
OMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in
the customer's application or use of the products.
Take all necessary steps to determine the suitability of the product for the systems, machines, and equipment with which it will be used.
Know and observe all prohibitions of use applicable to this product.
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING
THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCTS ARE
PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
Disclaimers
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty.
It may represent the result of OMRON's test conditions, and the users must correlate it to actual application requirements. Actual
performance is subject to the OMRON Warranty and Limitations of Liability.
CHANGE IN SPECIFICATIONS
Product specifications and accessories may be changed at any time based on improvements and other reasons. Consult with your
OMRON representative at any time to confirm actual specifications of purchased product.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
