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Product Groups
Miniature Low-Cost Temperature Transmitters
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
TX91A and TX92A
PLACE ORDER 
  • Two-Wire Transmitter for Thermocouples and RTD's
  • 4-20 mAdc Output
  • ±0.1% Accuracy
  • Upscale Break Protection
  • Non-Isolated
  • Mountable in any Standard Protection Head
  • Accepts J, K, T, E Thermocouple or 100 ohm Platinum RTD Inputs
 Manuals (contact with email : [email protected])
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Description

Description

The non-isolated TX90A Series transmitters convert thermocouple or RTD signals into a 4 to 20 mA dc signal output that is directly referenced to the mV input of a thermocouple or resistance of a 100 Ohm platinum RTD.

For thermocouple transmitters, the 4 to 20mA output is not linearized. T/C transmitters are available for type K, J, T, and E with color coding for each T/C type. The transmitters for RTD’s are available with the 4 to 20mA output directly proportional to the input resistance or with the 4 to 20mA output linearized to tempearature.
TX91A_92A
Note: RTD’s are slightly non-linear with the resistance diverging from actual temperature by approximately 1% at the mid point of full scale. (For linearized RTD transmitters, specify “RTD-L”. Non-linearized transmitters are the more popular choice).

The TX90A transmitters mount directly within trodeks’s standard protection heads for connection to your sensor. trodeks also provides complete thermocouple and RTD assemblies.


Specifications
Output Range: 4 to 20 mA dc
Zero and Span Adjustment Range: ±25% for °F and ±10% for °C
Accuracy: ±0.1% of FS (includes effects of linearity, hysteresis andrepeatability) referenced to the mV input
Operating Temperature Range: -40 to 85°C (-40 to 185°F)
Storage Temperature Range: -46 to 121°C (-50 to 250°F)
Max Loop Resistance: (Vs – 8) / 0.020A
Supply Voltage: 8-50 Vdc, 24V nominal
Dimensions: 44.5 D x 31.75 mm H (1.75 x 1.25"); height includes terminal strip

Range Codes
TX91ATX92ARange
JKTERTDRTD-L 
11-L-40 to 60°C (-40 to 140°F)
J2K2T2E222-L-18 to 93°C (0 to 200°F)
J3K3T3E333-L-18 to 149°C (0 to 300°F)
J4K4T4E444-L-18 to 260°C (0 to 500°F)
J5K5T5E555-L-18 to 399°C (0 to 750°F)
J6K6E666-L-18 to 538°C (0 to 1000°F)
J7K7T7E777-L0 to 100°C (32 to 212°F)
J8K8T8E888-L0 to 150°C (32 to 302°F)
J9K9T9E999-L0 to 250°C (32 to 482°F)
J10K10T10E101010-L0 to 400°C (32 to 752°F)
J11K11E110 to 500°C (32 to 932°F)
Factory Scaling (-FS) is available for an additional charge. Please contact our engineering team for custom scaling.
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