Thermistor Splitter, Potentiometer Splitter.

DAT4631C

DAT4531D Isolated Voltage and Current Converter
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Thermistor Splitter, Potentiometer Splitter DAT4631C.
• UL, CSA, CE.
• Isolated Thermistor Splitter
• Input Thermistor and Potentiometer
• Input PTC KTY81-210, KTY81-220, KTY84-130, KTY84-150,
• Input NTC Coster 10K, Coster 1K
• Potentiometer 0-50KΩ
• DIP Switch Configurable
• PC Programmable
• Output Voltage or Current
• DIN Rail Mounted
General Description

The DAT4631C is a DIN rail mount isolated signal converter and splitter designed for accurate measurement and signal conditioning of thermistor or potentiometer inputs. It accepts a single input and provides two identical, isolated linear process outputs in voltage or current format. With configurable settings via PC software or onboard DIP switches, the DAT4631C is an ideal solution where the same measured value needs to be transmitted to two separate systems or control loops.

Key Features

  • Thermistor and Potentiometer Input: Accepts a wide range of thermistor types or resistive potentiometers for temperature or position measurement.
  • Signal Splitting Function: Converts one input into two identical voltage or current outputs for parallel signal use.
  • Linearized Output: Ensures precise, linear output representation of the measured parameter.
  • Dual Isolated Outputs: Provides two galvanically isolated analog outputs (voltage or current) for reliable signal distribution.
  • High Accuracy: Designed for industrial environments that demand stable and accurate signal conversion.
  • Complete Isolation: 1500 Vac isolation between input, both outputs, and power supply enhances safety and signal integrity.
  • PC or DIP Switch Programmable: Easy configuration for both field and bench setups.

The DAT4631C is ideal for applications where the same thermistor or potentiometer signal needs to be shared across two systems — such as redundancy setups, dual-loop control, or simultaneous monitoring and recording. It ensures reliable, isolated performance in harsh industrial environments.

INPUT OUTPUT POWER SUPPLY
Thermistors 2 x Current 4-20 mA Power Supply Voltage 18-32Vdc
Potentiometer 2 X 0-10 V Reverse polarity protection 60Vdc
CURRENT CONSUMPTION CONFIGURATION ISOLATION
Between 35 mA DIP Switch Programmable Between 3 way 1500Vac.
PC Programmable
EMC HOUSING TEMPERATURE
For Industrial environments Material self-extinguishing Operating Temperature -4°F +158°F -20°C +70°C
Immunity EN 61000-6-2 Dimensions W x H x T 3 1/2" x 4 1/2" x 1/2 " Storage Temperature -40°F +185°F-40°C +85°C
Emission EN 6100-6-4 90 x 112x x 12.5 mm Humidity (non condensing) 0-90%
Weight 3 oz 90 g

Specifications

Input: Thermistor positive temperature coefficient KTY81-210, KTY81-220, KTY84-130, KTY84-150. negative temperature coefficient Coster 10 K and Coster 1K. Potentiometer 0-50 K ohms, See Data sheet for range.
Output: 2 X 4-20mA, 0-20mA, 0-10V.
Power Supply: 18 to 30 Vdc. Reverse polarity protection 60 Vdc.
Current Consumption: Current output 35 mA max. Voltage output 25 mA max.
Temperature rating: Operative -4°F +158°F -20°C +70°C
  Temperature Storage Temperature -40°F +185°F -40°C +85°C.
Humidity: (non condensing) 0-90%.
Housing: Material self-extinguishing.
Dimensions: 3 1/2" x 4 1/2 " x 1/2", 90 x 112x x 12.5 mm.
Weight: 3 oz 90 g.
EMC. For industrial environments.
  Immunity: EN 61000-6-2.
  Emission: EN 61000-6-4.
Configuration: PC Configurable and DIP Switch Configurable
Drawings

Thermistor Signal Splitter Input

Input Channel A  
Thermistor G and I
Potentiometer G and I wiper on L
Output Channel A  
Current Positive N Negative M.
Voltage Positive N Negative M
Output Channel B  
Current Positive P Negative O.
Voltage Positive P Negative O
Power supply Positive Q Negative R.
Thermistor Splitter wiring Diagram.
Applications

DAT4631C - Frequently Asked Questions

What is the main function of the DAT4631C?
The DAT4631C is a signal splitter that converts a thermistor or potentiometer input into two identical, isolated analog outputs — either current or voltage.
What types of inputs are supported?
The DAT4631C supports various thermistor models as well as standard potentiometers, making it suitable for temperature or resistive position sensing applications.
Are the outputs isolated from each other?
Yes, both outputs are isolated from each other, from the input, and from the power supply with 1500 Vac galvanic isolation.
What are the output signal options?
The device supports common voltage (e.g., 0-10V) and current (e.g., 4-20mA) outputs, programmable per your system’s needs.
How do I configure the DAT4631C?
You can program the device using a PC with configuration software or manually via DIP switches on the module.
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