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2-WIRE PROGRAMMABLE, ISOLATED TEMPERATURE TRANSMITTER----------------------------------------------TRX30
 
Universal input, 4 Digit LED display
 

 
  • True 2-wire operation
  • Universal input:
    TC : B, E, J, K, N, R, S, T
    RTD : Pt50, Pt100, Pt200
    4~20 mA, linear / square root, 0~50 mV
  • 0.1% linearisation accuracy
  • Software calibration - no trimpots
  • Upscale / downscale selection
  • 11.5~32 V DC loop supply
  • 4~20 mA or 20~4 mA selection
  • 4-digit LED display enhances utility
  • DIN Rail and FLP versions


TRX30 is a microcontroller based user programmable high performance, "all-in-one' 2-wire temperature transmitter. Its high reliability industrial design offers some rare functions.

TRX30 has an integral 4-digit LED display, which enhances utility greatly and also allows a large amount of programming.
   
Table1           Tambient = 25 °C
 
Sensor / Input Range Limits Range In Which Typical Accuracy Worst Case
(°C / EU ) Accuracy Is Specified At 30 °C Accuracy
Low Scale High Scale Low Scale High Scale (°C / EU ) (°C / EU )
Pt-6% Rh / Pt- 30% RH (B) 400 1820 400 1820 ±5 ±6
Chromel / Constantan (E) -270 1000 0 1000 ±2 ±3
Iron / Constantan (J) -210 760 0 760 ±2 ±3
Chromel / Alumel (K) -270 1372 -50 1200 ±2 ±3
Nicrosil / Nisil (N) -270 1300 -50 1200 ±2 ±3
Pt / Pt-13% Rh (R) 0 1760 0 1760 ±4 ±6
Pt / Pt-10% Rh (S) 0 1760 0 1760 ±4 ±6
Copper /Constantan(T) -270 400 -200 400 ±2 ±4
Pt100, 3-wire -220 850 -200 400 ±0.2 ±0.5
Linear voltage (0~50 mV) -1999 9999 -1999 9999 ±0.1% ±0.25%
Linear current (4~20 mA, 0~20 mA) -1999 9999 -1999 9999 ±0.1% ±0.25%
Non- linear current (squara rooted)- 4~20 mA -1999 9999 -1999 9999 ±0.2% ±0.5%
Note : Non-std inputs, such as 0~10 V DC, 0~100 V DC, etc. available on request
 
 
Specification--------All specifications at ambient of 25 °C, unless specified otherwise
INPUT  
Input type  
Thermocouple B, E, J, K, N, R, S, T
RTD Pt50, Pt100, Pt200
4~20
mA, linear / square
root 0~50 mV
Range See Table 1
Display  
Din Rail 4 digit, 0.3" (7.6mm), red
LED
Flameproof 4 digit, 0.56" (14.2mm), red
LED
Monitoring  
Sensor break detection  
Upscale current 20~22mA
Downscale currnet 3.9mA
Output  
Current, selectable 4~20 mA, 20~4mA
permissible load 600 Ω @ 24 V DC, 20 mA
Current limit 20~22 mA
Accuracy  
Linearity & calibration See Table 1
Cold junction compensation ± 1 °C
Temperature effect ± 0.5% of span / 25 °C
on accuracy  
Supply voltage effect ± 0.002% of span / V
Supply ripple effect, ± 0.005% of span
50/60 hz, 5 Vp - p  
Power supply  
Supply voltage 11.5 to 32 VDC loop supply
Isolation  
Between input & loop 1000 V AC RMS / 1 minute
supply 250 V AC RMS, ontinuous
Calibration  
Zero & span Through front panel keys &
display
Temperature, Humidity  
Ambient, storage -22~ + 85 °C
Ambient, operation 0~60 °C
Relative humidity 0~95%
Enclosure - DIN Rail  
Material ABS plastic
Dimensions 75(H) x 45(W) x 109.5(D)
mm
Mounting Snap on for 35 mm DIN rail
to DIN 46277
Connection, single/stranded 2.5mm2,AWG 14
wires  
Weight <200 grams
Protection IP 20
Enclosure - Flameproof  
Material Aluminium alloy
Dimensions 100(H) x 100(W) x 152(D)
mm
Mounting 2" pipe
Certification Flameproof for gas groups
I, IIA & IIB by CMRI
Dhanbad Enclosure certified
for gas group IIC also
available
Programming Through externally
accessible membrane
keypad (I, IIA & IIB only)
Protection IP 65
Programmable parameters  
Unit °C, °F, EU
Autoranging On, Off
Low scale -1999 to 9999
High scale -1999 to 9999
Preset current 20 to 22 mA
(Sensor break)  
Decimal point 0.001, 0.01, 0.1 or 1
Output type 4~20, 20~4mA
Digital filter A, B, C, D, E, F
 
 
Connection Diagram
 
 
 
 
 
 
 
 
 
   
 

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