Switch Function

Temperature Range

Process Connection

Electrical Connection

Stem Length

850 Series Electronic Indicating Temperature Transmitters/Switch

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Series Overview

  • Utilizes PT1000 technology for continuous temperature monitoring, electronic temperature switching, and transmission of analog output while providing local digital indication
  • Allows for one or two switching outputs as well as optional current and voltage outputs
  • Three buttons on top allow simple adjustment of the temperature set points, reset points, switching functions and the measuring range of the optional analog output
  • 1/2” NPT Male standard connection
  • A variety of stem lengths are available for maximum versatility; also available with adjustable insertion lengths via the sliding compression fitting
  • Durable Stainless Steel housing and wetted parts
  • Display and electrical connection can be rotated independently
  • RoHS compliant

     Note: Thermowells are recommended for pressure, corrosive fluids and high velocity applications.

Part NumberSwitch FunctionTemperature RangeProcess ConnectionElectrical ConnectionStem Length
850-4-48--4/248-3-150mm-6 2 NO or NC (PNP) with 4–20 mA analog output -4 °F to 248 °F (–20 °C to 120 °C) 1/2″ NPT male sliding compression fitting M12 x 1 (5-pin) 150 mm
850-5-8--4/176-3-100mm-6 2 NO or NC (PNP) with 0–10 V analog output -4 °F to 176 °F (–20 °C to 80 °C) 1/2″ NPT male M12 x 1 (5-pin) 100 mm
850-5-8--4/176-3-040-6 2 NO or NC (PNP) with 0–10 V analog output -4 °F to 176 °F (–20 °C to 80 °C) 1/2″ NPT male M12 x 1 (5-pin) 4"
850-4-8--4/176-3-120-6 2 NO or NC (PNP) with 4–20 mA analog output -4 °F to 176 °F (–20 °C to 80 °C) 1/2″ NPT male M12 x 1 (5-pin) 12"
850-4-48--4/248-3-140-6 2 NO or NC (PNP) with 4–20 mA analog output -4 °F to 248 °F (–20 °C to 120 °C) 1/2″ NPT male sliding compression fitting M12 x 1 (5-pin) 14"
850-5-2--4/176-3-040-6 2 NO or NC (PNP) with 0–10 V analog output -4 °F to 176 °F (–20 °C to 80 °C) 1/4″ NPT male M12 x 1 (5-pin) 4"
850-4-8--4/176-3-060-6 2 NO or NC (PNP) with 4–20 mA analog output -4 °F to 176 °F (–20 °C to 80 °C) 1/2″ NPT male M12 x 1 (5-pin) 6"
850-5-48--4/248-3-060-6 2 NO or NC (PNP) with 0–10 V analog output -4 °F to 248 °F (–20 °C to 120 °C) 1/2″ NPT male sliding compression fitting M12 x 1 (5-pin) 6"
850-2-8--50/400-2-090-6-PC 1 NO or NC (PNP) with 4–20 mA analog output -50 °F to 400 °F 1/2″ NPT male M12 x 1 (4-pin) 9"
850-2-8--4/176-2-090-6 1 NO or NC (PNP) with 4–20 mA analog output -4 °F to 176 °F (–20 °C to 80 °C) 1/2″ NPT male M12 x 1 (4-pin) 9"
850-2-8--50/400-2-060-6 1 NO or NC (PNP) with 4–20 mA analog output -50 °F to 400 °F 1/2″ NPT male M12 x 1 (4-pin) 6"
850-2-8--50/400-2-040-8-PC 1 NO or NC (PNP) with 4–20 mA analog output -50 °F to 400 °F 1/2″ NPT male M12 x 1 (4-pin) 4"
850-2-8--4/176-2-060-6 1 NO or NC (PNP) with 4–20 mA analog output -4 °F to 176 °F (–20 °C to 80 °C) 1/2″ NPT male M12 x 1 (4-pin) 6"
850-2-8--50/400-2-060-6-PC 1 NO or NC (PNP) with 4–20 mA analog output -50 °F to 400 °F 1/2″ NPT male M12 x 1 (4-pin) 6"
850-2-8--50/400-2-120-6 1 NO or NC (PNP) with 4–20 mA analog output -50 °F to 400 °F 1/2″ NPT male M12 x 1 (4-pin) 12"
850-2-8--50/400-2-040-6 1 NO or NC (PNP) with 4–20 mA analog output -50 °F to 400 °F 1/2″ NPT male M12 x 1 (4-pin) 4"
850-2-8--50/400-2-040-3 1 NO or NC (PNP) with 4–20 mA analog output -50 °F to 400 °F 1/2″ NPT male M12 x 1 (4-pin) 4"
850-2-8--50/400-2-040-3-PC 1 NO or NC (PNP) with 4–20 mA analog output -50 °F to 400 °F 1/2″ NPT male M12 x 1 (4-pin) 4"
850-2-8--50/400-2-040-6-PC 1 NO or NC (PNP) with 4–20 mA analog output -50 °F to 400 °F 1/2″ NPT male M12 x 1 (4-pin) 4"
850-2-8--50/400-2-025-3-PC 1 NO or NC (PNP) with 4–20 mA analog output -50 °F to 400 °F 1/2″ NPT male M12 x 1 (4-pin) 2.5"