791

791

Description

Panel mount digital temperature transmitter with 4- 20 mA current output that allows the 791 to drive any loop powered process indicator or recorder. Current output has expanded or normal switch for user adjustable center point and span control for temperature to 4-20 mA output and features a LCD display & 1/8 DIN Aluminum case. Types. J, K, T, 3-wire Pt-100 RTD, specify °C or °F. Ambient range 0 to 40°C. 115 / 230V AC operation.
  • All solid state design
  • Low power consumption ,reduced internal heating ,increased reliability
  • High 50/60 hz noise rejection
  • Heat cycled 100 hours before shipment
  • Available for various thermocouple and rtd calibrations
  • Easy to install
  • Aluminum 1/8 DIN housing
  • Isolated 4 to 20 mA output over span in nor mode
  • 115VAC /230VAC operations

Specifications

  •   Range Resolution Accuracy
    Temp °C, Type K -50 to 1250 Centigrade 1 Centigrade ± 2.6 Centigrade
    Temp °F, Type K -58 to 1999 Fahrenheit 1 Fahrenheit ± 4.7 Fahrenheit
    Temp °C , Type J -150 to 760 Centigrade 1 Centigrade plusmn;2.0Centigrade
    Temp °C , Type J -238 to 1400 Fahrenheit 1 Fahrenheit ± 3.6 Fahrenheit
    Temp °C, Type T -150 to 400 Centigrade 1 Centigrade ± 2.0 Centigrade
    Temp °F, Type T -238 to 752 Fahrenheit 1 Fahrenheit ± 3.6 Fahrenheit
    Temp °C, Type E -95 to 850 Centigrade 1 Centigrade ± 2.6 Centigrade
    Temp °F, Type E -139 to 1562 Fahrenheit 1 Fahrenheit ± 4.7 Fahrenheit
    Temp °C , Type PTA -150.0 to 199.9Centigrade 0.1 Centigrade ± 0.5 Centigrade
    Temp °C , Type PTB -50 to 850 Centigrade 1 Centigrade ± 0.2 Centigrade

  • Current Output

    • Nor mode: Isolated 4 to 20 mA output over span
    • Exp mode: Isolated 4~20 mA output over adjuatable temp. rang
    • Output current accuracy: ±0.3%
    • Isolation voltage: 500 VDC min
    • Transmitter load: 550 ohms max

    General

    • Cold junction compensation: 25 centigrade
    • Operating temperature: 0 to 40 centigrade
    • Display: 0.5 high LCD display,model 791, 0.56 high red LED
    • Power source: 115/230 VAC ± 15%,50/60hz
    • Dimensions: 96mm x 48mm x 154mm
    • Weight: 0.61 kg

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