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Miniature Low-Cost Temperature Transmitters
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
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. | | |  | |
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.
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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| TX91A | TX92A | Range | | J | K | T | E | RTD | RTD-L | | | – | – | – | – | 1 | 1-L | -40 to 60°C (-40 to 140°F) | | J2 | K2 | T2 | E2 | 2 | 2-L | -18 to 93°C (0 to 200°F) | | J3 | K3 | T3 | E3 | 3 | 3-L | -18 to 149°C (0 to 300°F) | | J4 | K4 | T4 | E4 | 4 | 4-L | -18 to 260°C (0 to 500°F) | | J5 | K5 | T5 | E5 | 5 | 5-L | -18 to 399°C (0 to 750°F) | | J6 | K6 | – | E6 | 6 | 6-L | -18 to 538°C (0 to 1000°F) | | J7 | K7 | T7 | E7 | 7 | 7-L | 0 to 100°C (32 to 212°F) | | J8 | K8 | T8 | E8 | 8 | 8-L | 0 to 150°C (32 to 302°F) | | J9 | K9 | T9 | E9 | 9 | 9-L | 0 to 250°C (32 to 482°F) | | J10 | K10 | T10 | E10 | 10 | 10-L | 0 to 400°C (32 to 752°F) | | J11 | K11 | – | E11 | – | – | 0 to 500°C (32 to 932°F) |
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