Dual Channel RTD Temperature Transmitter.

DAT2066

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Dual Channel RTD Temperature Transmitter DAT2066.
• Dual RTD Temperature Transmitter.
• DIP Switch Programmable.
• DIN Rail Mounted.
General Description

The DAT2066 Dual Channel RTD Temperature Transmitter is a DIN rail mount, loop-powered device designed to accept signals from two independent Pt100 RTDs. Each channel is converted into a separate 4-20 mA output, providing a cost-effective way to measure and transmit two temperatures from a single compact module.

The DAT2066 offers DIP switch programmability for coarse range and zero settings, with fine adjustment available via top-mounted potentiometers. It accepts both 2-wire and 3-wire Pt100 RTDs, delivering accurate conversion with ±0.1% full scale accuracy and thermal drift under 0.02%/°F.

For reliability in industrial environments, the two channels are isolated up to 1000 V, eliminating ground loop effects. The DAT2066 complies with EMC directive 89/336/CEE and is housed in a slim 12.5 mm DIN rail enclosure suitable for EN-50022 / EN-50035 mounting standards.

The DAT2066 is ideal where two Pt100 sensors need to be transmitted as separate 4-20 mA signals in space-constrained panels or distributed control systems.

INPUT OUTPUT POWER SUPPLY
2 x RTD Pt100. 2 wire RTD's and 3 Wire RTD's. 2 x Current 4-20mA Two Wire, Current Loop. Power Supply Voltage 18-30Vdc
Reverse polarity protection 60Vdc
CURRENT CONSUMPTION CONFIGURATION ISOLATION
35 mA DIP Switch Programmable None
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
DAT2066 Datasheet
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Din Rail Temperature Transmitters
Applications
Drawings
Din Rail Temperature Transmitters

Specifications

Input: Channel 1 RTD Pt100. See Data sheet for range.
Input: Channel 2 RTD Pt100. See Data sheet for range.
Output: Channel 1 4-20mA.
Output: Channel 2 4-20mA.
Power Supply: 10 to 30 Vdc
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: W x L x H inch 3 1/2 x 4 1/2 x 1/2, mm 90 x 112 x 12.5.
Weight: 3 oz 90 g.
EMC. For industrial environments.
  Immunity: EN 61000-6-2.
  Emission: EN 61000-6-4.
Configuration: DIP Switch Configurable
Drawings

DAT2066 Wiring Diagram

Input Channel 1  
RTD 2 wires Terminals L and G Short to I
RTD 3 wires Terminal L and G Compensation I
Output and Power supply Positive +V N Negative -V M
Input Channel 2  
RTD 2 wires Terminals H and F Short to E
RTD 3 wires Terminal H and F Compensation E
Output and Power supply Positive +V R Negative -V Q
Dual Channel RTD Temperature Transmitter DAT2066.
Applications

Frequently Asked Questions – DAT2066

What is the difference between the DAT2066 and the DAT2065?
The DAT2065 is a single-channel loop-powered transmitter, while the DAT2066 provides two independent 4-20 mA outputs from two separate Pt100 RTD sensors.
What type of RTDs does the DAT2066 support?
The DAT2066 supports Pt100 RTDs in 2-wire and 3-wire configurations.
Are the two channels isolated?
Yes, the two channels are isolated up to 1000 V, preventing ground loop issues and improving reliability in harsh industrial environments.
How is the DAT2066 configured?
Each channel is configured using DIP switches for coarse range and zero, with fine-tuning adjustments via potentiometers located on the top of the device.
What is the accuracy of the DAT2066?
The transmitter provides ±0.1% full scale accuracy with thermal drift less than 0.02%/°F.
What kind of output signals does it provide?
Each channel provides a linearized 4-20 mA output, suitable for direct integration into PLCs and control systems.
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