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Product Groups
Thermocouple Input Signal Conditioner
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
DRF-TC Series
  • Models for J, K, E, T, R and S Thermocouples
  • Accuracy 0.3%
  • 250 ms Response Time
  • Upscale Break Protection
  • Linearized Output
  • Galvanic Isolation Between Input, Output and Power
 Manuals (contact with email : [email protected])


The DRF series DIN rail signal conditioners aredesigned to accept a broad range of input signals,such as ac and dc voltage and current, frequency,temperature (thermocouple and RTD), and processtransducers, and provide standard process outputsof either 4 to 20 mA, or 0 to 10 Vdc. The DRF seriesfeature a modern housing design, that is easilymounted on standard 35 mm DIN rails. Connectionsare safely and securely made through pluggablescrew terminal connectors, with input and outputconnections on the opposite sides of the module.

The DRF-TC thermocouple signalconditioners accept thermocouple inputand provide a linearized and isolated 010 Vdc or 4 to 20 mA output. Models areavailable with three different poweroptions, 24Vdc, 120 Vac and 240 Vac.

The DRF-TC are ideally suited forindustrial applications. All models mounton a standard 35 mm DIN rail andprovide galvanic isolation between input,output and power up to 3500 Veff (modelspecific). To insure maximummeasurement accuracy the units featurecold junction compensation, 0.2%linearity and less than 0.1°C/1°C thermaldrift due to compensation. Moduleresponse 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   X  
0/1200°C0 to 1200°C 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 to 20 mA and 0 to 10 Vdc
Maximum Voltage Output: 11 Vdc approx.
Minimum Voltage Output: -1 Vdc approx.
Minimum Load Resistance (Voltage): >1 KΩMaximum 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)
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