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Thermocouple Signal Conditioner


Thermocouple Signal Conditioner 0-10V 4-20mA | DRF-TC

Thermocouple Signal Conditioner 0-10V 4-20mA

  • Models for J, K, E, T, R and S Thermocouples
  • Accuracy 0.3%
  • 250 ms Response Time
  • Upscale Break Protection
  • Linearized 0-10V and 4-20mA Output
  • Galvanic Isolation Between Input, Output and Power
Signal Conditioners - View related products


Find how signal conditioning works on this link.

The DRF series DIN rail signal conditioners are designed to accept a broad range of input signals, such as ac and dc voltage and current, frequency, temperature (thermocouple and RTD), and process transducers, and provide standard process outputs of either 4-20mA, or 0-10V. The DRF series feature a modern housing design, that is easily mounted on standard 35 mm DIN rails. Connections are safely and securely made through pluggable screw terminal connectors, with input and output connections on the opposite sides of the module.

The DRF-TC thermocouple signal conditioners accept thermocouple input and provide a linearized and isolated 0-10V or 4-20mA output. Models are available with three different power options, 24Vdc, 115 Vac and 230 Vac.

The DRF-TC are ideally suited for industrial applications. All models mount on a standard 35 mm DIN rail and provide galvanic isolation between input, output and power up to 3500 Veff (model specific). To insure maximum measurement accuracy the units feature cold junction compensation, 0.2% linearity and less than 0.1°C/1°C thermal drift due to compensation. Module response time is 250 ms or less.

Range Code Table for DRF-TC
Range CodeRangeJKTERS
0/100°C0 to 100°C   X  
0/150°C0 to 150°CXX    
0/175°C0 to 175°C   X  
0/200°C0 to 200°C  X   
0/250°C0 to 250°CXX    
0/300°C0 to 300°C  XX  
0/400°C0 to 400°CXXX   
0/500°C0 to 500°C   X  
0/700°C0 to 700°CXX    
0/800°C0 to 800°C      
0/1200°C0 to 1200°C X X  
0/1600°C0 to 1600°C     X
850/1700°C850 to 1700°C    X 
Minimum Span* 85°C85°C100°C85°C100°C100°C
* Custom ranges may be obtained by adjusting on-board zero and span potentiometers.
The minimum range is limited by the minimum span specification.


Accuracy: <0.3% full scale
Linearity: <0.2% full scale
Thermal Drift: 250 ppm/°C typical
Thermocouple CJC Drift: 0.1°C/°C
Response Time: <250 mS (90% of signal)
Power: 24 Vdc ±10%, 230 Vac ±10% 50/60 Hz, 115 Vac ±10% 50/60 Hz
Power Consumption: <3.8 VA

Output: 4-20 mA and 0-10V (DC)
Maximum Voltage Output: 11 Vdc approx.
Minimum Voltage Output: -1 Vdc approx.
Minimum Load Resistance (Voltage): >1 KΩ Maximum Current Output: 22 mA approx.
Maximum Current Output: -1.5 mA approx.
Maximum Load Resistance (current): >400 Ω

Electrical Connections: Plug-in screw terminals
Protection: IP-30

(DC Powered Models): 120 g (4.2 oz)
(AC Powered Models): 200 g (7 oz)
(DC Powered models):
110 H x 22.5 W x 93 mm D (4.3 x 0.9 x 3.7")
(AC Powered models):
110 H x 37 W x 93 mm D (4.3 x 1.46 x 3.7")
Operating Temperature: 0 to 60°C (32 to 140°F)
Storage Temperature: -20 to 70°C (-4 to 158°F)
Place Order(Specify Model Number)
Part Number/ Desc.
Below are examples of popular models. See the Part Number Builder to order any available model.
Type K Thermocouples
DRF-TCK-230VAC-0/1200C-4/20 Star
Availability: 7 weeks
RoHS compliant
Type K thermocouple signal conditioner with 0 to 1200°C range, 4-20mA output and 230Vac power
DRF-TCK-24VDC-0/400C-4/20 Star
Availability: 7 weeks
RoHS compliant
Type K thermocouple signal conditioner with 0 to 400°C range, 4-20mA output and 24Vdc power
DRF-TCK-115VAC-0/250C-4/20 Star
Availability: 7 weeks
RoHS compliant
Type K thermocouple signal conditioner with 0 to 250°C range, 4-20mA output and 115Vac power
Type T Thermocouples
DRF-TCT-24VdC-0/200C-4/20 Star
Availability: 7 weeks
RoHS compliant
Type T thermocouple signal conditioner with 0 to 200°C range, 4-20mA output and 24Vdc power
Type J Thermocouples
DRF-TCJ-230VAC-0/400C-4/20 Star
Availability: 6 weeks
RoHS compliant
Type J thermocouple signal conditioner with 0 to 400°C range, 4-20mA output and 230Vac power
All amounts shown in EUR, GBP, or USD
Ordering Example: (1) DRF-TCT-24VDC-0/200C-4/20 Type T thermocouple signal conditioner with 0 to 200°C range, 4 to 20mA output and 24Vdc power, £133.00

Part Number Builder

Build Your Part Number Below
Option Descriptions:

(1) Thermocouple Type select from:
J for J thermocouple
K for K thermocouple
T for T thermocouple
E for E thermocouple
R for R thermocouple
S for S thermocouple

(2) Power select from:
115VAC for 115 Vac power
230VAC for 230 Vac power
24VDC for 24 Vdc power

(3) Range Code select from:
0/100C for 0 to 100°C (E thermocouple only)
0/150C for 0 to 150 degree C (K thermocouple only)
0/175C for 0 to 175 degree C (E thermocouple only)
0/200C for 0 to 200 degree C (T thermocouple only)
0/250C for 0 to 250 degree C (K thermocouple only)
0/300C for 0 to 300 degree C (T and E thermocouple only)
0/400C for 0 to 400 degree C (K and T thermocouple only)
0/500C for 0 to 500 degree C (E thermocouple only)
0/700C for 0 to 700 degree C (J and K thermocouple only)
0/800C for 0 to 800 degree C (E thermocouple only)
0/1200C for 0 to 1200 degree C (K thermocouple only)
0/1600C for 0 to 1600 degree C (S thermocouple only)
850/1700C for 850 to 1700 degree C (R thermocouple only)

(4) Output select from:
4/20 for 4 to 20 mA
0/10 for 0 to 10Vdc
Note: All combinations may not be valid, check spec sheet for valid part numbers.