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STT91EEMCXR11S | Kele | Temperature Sensors & Transmitters

WALL 1K OHM 375 TEMP 4-20MA 0/35C




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product family specifications

Supply Voltage

10.5-45 VDC

Signal Output

4-20 mA @ 675Ω, two-wire, loop-powered

Sensor Element

1000Ω thin film platinum TCR 0.00375Ω/Ω/℃


Sensor accuracy: ±0.2% of 1000Ω at 0℃

Transmitter accuracy: 0.1℉ or 0.2% of span


-30° to 250℉ (34° to 121℃) (Min span of 40℉ (22℃)) Standard: 40° to 90℉ (4° to 32℃)



-30° to 210℉ (-34.4° to 98.9℃)

Minimum Span

40℉ (22℃)

Usable Range

-30° to 250℉ (-34.4° to 121.1℃)


2.1Ω/℉ @ 32℉

Operating Temperature

0° to 140℉ (-18° to 60℃)

Operating Humidity

0% to 95%, non-condensing

Enclosure Rating

NEMA 1, Plastic


0.3 lb (0.14 Kg) either style ″E″ or ″K″


CE (EN50081-1, EN50082-1); Optional CE (EN50081-2, EN50082-2) Industrial RF/EM hardened


1 year

product family features

  • High accuracy
  • No-drift platinum
  • Loop calibration test signal
  • Low cost
  • Decorative enclosure
  • Loop power LED indication
  • CE approved (commercial and industrial)

more information & related documents

Family Description

The Kele ST-T91 Rangeable Platinum Room Temperature Transmitter Series provides stable, accurate room sensing for temperature control and building automation systems, and it is CE approved for level-one applications. The attractive vented housing mounts easily and is constructed of a durable plastic with a tan enameled aluminum faceplate. The ST-T91E is the Executive style room transmitter and the ST-T91K is the Design style room transmitter. The ST-T91 Series has a loop-powered 4-20 mA output with a standard temperature range of 40° to 90°F (4° to 32°C), although other ranges can be field calibrated between -30° to 250°F (-34° to 121°C). To adjust the ST-T91 Series, set the DIP switches to match the desired range, and use the zero and span pots to fine tune. A high accuracy digital ohmmeter and decade box are required. The ST-T91 Series has a special 20 mA loop calibration test signal to provide easy system verification. Simply move the bottle plug jumper from norm to 20, and the transmitter will output a constant 20 mA. The loop up LED provides power indication for the 4-20 mA output.

Kele Description

WALL 1K OHM 375 TEMP 4-20MA 0/35C



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