What is the main difference between DAT2145 and DAT2045?

The DAT2145 offers multiple output formats including 4-20 mA, 0-20 mA, and 0-10 V, whereas the DAT2045 provides only 4-20 mA. Both are voltage-linear and DIP-switch programmable.

Is the DAT2145 output temperature-linear?

No, like the DAT2045, the DAT2145 provides a voltage-linear output. Temperature linearization should be performed externally.

How is the DAT2145 configured?

The device is configured using DIP switches to set coarse range and zero, and potentiometers for fine adjustment of the output signal.

What output signals are available?

The DAT2145 supports 4-20 mA, 0-20 mA, and 0-10 V outputs, making it versatile for different control system inputs.

Is the DAT2145 electrically isolated?

No, the DAT2145 is not isolated. For isolation, consider the DAT4531A or DAT4532A models.

What kind of thermocouples can it accept?

The DAT2145 supports standard thermocouple types such as J, K, T, E, etc. as defined in the datasheet.

Din Rail Thermocouple Converter

DAT2145

Buy Online

Din Rail Thermocouple Converter DAT2145.

• Thermocouple Temperature Converter.
• DIP Switch Programmable.
• Voltage Linear.

General Description

The DAT2145 Thermocouple Converter is a DIN rail mount temperature signal converter that supports a wide range of thermocouple types. It features DIP switch configuration for coarse range and zero, with top-mounted potentiometers for fine-tuning. Unlike the DAT2045, the DAT2145 provides multiple output formats including 4-20 mA, 0-20 mA, and 0-10 V — all voltage-linear.

With an accuracy of 0.1% full scale and a thermal drift below 0.02%/°F, the DAT2145 is a precise and flexible solution for converting thermocouple signals. It includes internal cold junction compensation for improved measurement reliability.

The device is housed in a compact 12.5 mm DIN rail enclosure compliant with EN-50022 and EN-50035 mounting standards and meets EMC requirements (89/336/CEE). Ideal for process control, building automation, and PLC interface applications where multiple output options are required.

INPUT	OUTPUT	POWER SUPPLY
Thermocouple.	Current 4-20mA .	Power Supply Voltage 10-30Vdc
	Volt 0-10V	Reverse polarity protection 60Vdc
CURRENT CONSUMPTION	CONFIGURATION	ISOLATION
40 mA	DIP Switch Programmable	None
	Span and Zero Adjustable pots
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

DAT2145 Datasheet

Buy Online
Applications
Drawings
Din Rail Temperature Transmitters

Key Features

High Accuracy: Accurate to 0.1% full scale with less than 0.02%/°F thermal drift.
Configurable Settings: Coarse range and zero can be set using the DIP switches. Fine-tuning of the output is possible using the potentiometers located on top of the device, ensuring values remain within the specified ranges in the datasheet.
EMC Compliance: Compliant with the 89/336/CEE standard for Electromagnetic Compatibility.
Compact Design: Housed in a 12.5 mm thick plastic enclosure, suitable for DIN rail mounting in compliance with EN-50022 and EN-50035 standards.

The DAT2145 is an excellent solution for precise thermocouple signal conversion in industrial environments, offering reliable and stable performance.

Specifications

Input type:	Min	Max	Min. span
K Type Thermocouple	-58℉	2500℉	210℉
	50℃	1370℃	100℃
J Type Thermocouple	-58℉	1650℉	210℉
	50℃	900℃	100℃
R Type Thermocouple	-58℉	3200℉	1290℉
	50℃	1760℃	800℃
S Type Thermocouple	-58℉	3200℉	1290℉
	50℃	1760℃	800℃
T Type Thermocouple	-58℉	840℉	210℉
	50℃	450℃	100℃
Input impedance	<=10MΩ
Line resistance influence	0.2 uV/&ohm

Power Supply Specifications

Power supply voltage	10 .. 30 Vdc
Current Consumption	Current output 40 mA
	Voltage output 10 mA

Signal type	4-20 mA
	0-20 mA
	0-10 Volts
Burnout condition	High >20 mA or >10 Volts
Max output signal	30 mA or 18 Volts
Load resistance	Current output < 500Ω
	Voltage output > 5 KΩ
Response time	from 10 to 90% 500 ms
Warm up time	3 minutes
Calibration error	> of ±0.1% f.s. or ±0.1 ℉ ±0.2 ℃
Linearity error	±0.05% f.s.
Cold junction Compensation	±0.5% f.s.
Thermal drift	0.01% f.s./℉ for 500℉
	0.02% f.s./℃ for 500℃

Operative temperature	-4℉ to 158℉
	-20℃ to 70℃
Storage temperature	-40℉ to 185℉
	-40℃ to 85℃
Humidity (not condensed)	0 to 90 %
Maximum Altitude	6500ft 2000m
Installation	indoor
Category of installation	II
Weight	3 Oz
	90 g.
Material	Self-extinguish plastic
IP Rating	IP20
Wiring size	AWG 14-18
	0.8÷2.1 mm²
Screw torque	0.8 N m
Mounting	DIN rail standard EN-50022 and EN-50035
Dimensions	H 3.5" L 4.4" T 0.5"
	H 90 mm L 112 mm T 12.5 mm
EMC	For industrial environments
Immunity	EN 61000-6-2
Emission	EN 61000-6-4

Drawings

DAT2145 Wiring Diagram

Input
Thermocouple	Terminals L and I
Power supply	Positive +V R Negative -V P
Output Current	Positive +V N Negative -V P
Output Voltage	Positive +V N Negative -V P
No Connection	G,H,E,and F

Thermocouple Converter Input Circuit.

Thermocouple Converter Power Supply.

Thermocouple Converter Output Circuit .

How to calibrate a Thermocouple Converter

Turn on the Thermocouple Converter and leave to warm up for 3 minutes.
Calculate the span by subtracting the zero from the maximum range.
Choose the correct DIP switch setting for the Span and Zero.
Connect a calibrator to the input connections and a calibrated multimeter to the output connections.
Set the calibrator to 10% of the span and adjust the output to 10% output with the zero potentiometer.
Set the calibrator to 90% of the maximum range and adjust the output to 90% of full scale.
Repeat step 4 and step 5 unit the output reads accurately.

DIP switch settings for input and output.

DIP switch settings for a thermocouple converter

DIP switch settings for a analog output.

Output Signal Span	SW1	SW2	SW3	SW4	SW5
4 to 20 mA	On	Off	On	Off	On
0 to 20 mA	On	On	On	Off	Off
0 to 10 Volts	Off	On	Off	On	Off

DIP switch settings for a Thermocouple Converter.

K type Thermocouple

Span	SW1	SW2	SW3
210 to 300℉ 100'C to 150℃	On	On	Off
300 to 940℉ 150'C to 505℃	On	On	Off
940 to 2500℉ 505'C to 1370℃	On	On	Off
Zero	SW4
-58 to 14℉ -50 to -10℃	Off
14 to 122℉ -10 to 50℃	On

J type Thermocouple

Span	SW1	SW2	SW3
210 to 240℉ 100'C to 115℃	Off	On	Off
240 to 390℉ 115'C to 200℃	Off	On	On
390 to 1110℉ 200'C to 600℃	Off	On	On
11100 to 1650℉ 600'C to 900℃	Off	Off	On
Zero	SW4
-58 to 14℉ -50 to -10℃	Off
14 to 122℉ -10 to 50℃	On

R type Thermocouple

Span	SW1	SW2	SW3	SW4
1290 to 1470℉ 700'C to 800℃	Off	On	Off	On
1470 to 3200℉ 800'C to 1760℃	Off	On	On	On

S type Thermocouple

Span	SW1	SW2	SW3	SW4
1290 to 1470℉ 700'C to 800℃	Off	On	Off	On
1470 to 3200℉ 800'C to 1760℃	Off	On	On	On

T type Thermocouple

Span	SW1	SW2	SW3	SW4
210 to 300℉ 100'C to 150℃	Off	On	Off	On
300 to 840℉ 150'C to 450℃	Off	On	On	On

Applications

DIN Rail Mount Thermocouple Converter.
DIN Rail Mount Temperature Converter.

Custom products

What is a DAT 2145 260913?: The DAT 2145 260913 has a dedicated input and output. The range is fixed and the output is 0-5 Vdc.

Frequently Asked Questions - DAT2145

What is the main difference between DAT2145 and DAT2045?: The DAT2145 offers multiple output formats including 4-20 mA, 0-20 mA, and 0-10 V, whereas the DAT2045 provides only 4-20 mA. Both are voltage-linear and DIP-switch programmable.
Is the DAT2145 output temperature-linear?: No, like the DAT2045, the DAT2145 provides a voltage-linear output. Temperature linearization should be performed externally.
How is the DAT2145 configured?: The device is configured using DIP switches to set coarse range and zero, and potentiometers for fine adjustment of the output signal.
What output signals are available?: The DAT2145 supports 4-20 mA, 0-20 mA, and 0-10 V outputs, making it versatile for different control system inputs.
Is the DAT2145 electrically isolated?: No, the DAT2145 is not isolated. For isolation, consider the DAT4531A or DAT4532A models.
What kind of thermocouples can it accept?: The DAT2145 supports standard thermocouple types such as J, K, T, E, etc. as defined in the datasheet.

Back to General Description