Intempco Programmable 4-20 mA Sensor Transmitter, MIST55
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MIST55 Programmable 4-20 mA Sensor Transmitter

Part Number: MIST55 Brand: Intempco Controls, Inc
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MIST55 RTD Pt 100 temperature sensor is a complete RTD temperature sensor probe, signal conditioner and 4-20 mA output. 

You provide the 12-36 Vdc loop power. The Intempco MIST patented RTD (Pt100) sensor probes contain the temperature transmitter within the probe assembly. 

The transmitter is hermetically sealed from moisture or contaminants and provides tamper-proof vibration resistance. 

The 2-Wire 4 to 20 mA output is stable and accurate. MIST transmitters are shipped at the factory calibrated temperature range , selectable via the ordering code. 

Calibration using a temperature bath is not required. The MIST55 has a spring loaded probe and is designed to fit snugly into the bottom of a thermowell. 

See the thermowell ordering section to specify the correct length thermowell.
Features
  • Temperature Range -200° to 600° C (-328° to 1,112° F)
  • Spring loaded probe for thermowell
  • Output 2-wire 4-20 mA or 3-wire Vdc
  • Accuracy ±0.1° C + 0.10% calibrated span
  • Hermetically sealed transmitter
  • PT 100 RTD sensor/probe
  • Field re-programmable temperature range
  • Requires thermowell installation
  • Requires 12-36 Vdc loop power

Specifications

Brand

Accuracy

  • ± (0.10° C (0.18° F) + 0.10 % of Calibrated Span) with Two-Point Calibration
  • ± (0.25° C (0.45° F) + 0.40 % of Span) with One-Point Calibration

Approvals & Certifications

  • CSA
  • FM: Class I, Div. 1, Groups B, C, D, Class II, Division, Groups E, F, G NEMA 4

Cable Material

  • PVC
  • Teflon

Conduit Connection

  • 1/2” NPT
  • 3/4” NPT

Diameter

  • Sheath O.D.: 1/4” (6.35 mm)

Enclosure, Body Material

  • 316 Stainless Steel (Screw Cover)
  • Aluminum (Screw Cover & Quick Release)
  • Bakelite (Sccrew Cover)
  • Sanitary Polypropylene (Screw Cover)
  • Stainless Steel

Environmental Protection

  • Explosion-proof
  • IP66
  • IP67 Hermetically Sealed
  • NEMA 4
  • NEMA 4X
  • NEMA 6P Hermetically Sealed

Input Impedance

  • 1,000 ohms Min. (of Measuring Device, for Voltage Output)

Isolation

  • 500 Vdc Input/Output

Materials of Construction

  • Sheath Material: 316 Stainless Steel

NPT Connection

  • 1/2” NPT Male

Operating Pressure

  • Sensor psig: 500 (kPa: 3,447, bar: 34.47)

Operating Temperature

  • Housing: -40° to 80° C (-40° to 175° F)

Output

  • 0-10 Vdc Linear to Temperature
  • 0-5 Vdc Linear to Temperature
  • 1-5 Vdc Linear to Temperature
  • 4-20 mA Loop Powered, Linear to Temperature

Power Supply

  • 12-32 Vdc Polarity Protected

Power Supply Effect

  • 0.001 %/V

Process Connection Material

  • Nipple-Union-Nipple: 306 Stainless Steel
  • NPT Hex: Nickel-Plated Brass

Process Fitting Details

  • Nipple / Union / Nipple (C = 5”, 7”, 9” Long)

RFI/EMI Effect

  • RFI: 1 % or Less Typical

RTD Type

  • Pt100

Sensor Circuit

  • 2.5 mA Downscale for 4-20 mA Output
  • 24 mA Upscale for 4-20 mA Output

Sensor, Probe Connection

  • 2-Wire
  • 3-Wire

Sensor, Probe Type

  • RTD

Stability

  • Long Term Drift: ≤ 0.1 % of Full Scale Per Year

Storage Temperature

  • -40° to 80° C (-40° to 176° F)

Temperature Effect

  • ± 0.001 % of Span/°C

Temperature Range

  • Sensor: -200° to 600° C (-328° to 1,112° F)

Update Time

  • Warmup: 30 seconds

Wetted Materials

  • 316 Stainless Steel, Dual Certified
  • 316L Stainless Steel, Dual Certified

  • Process Temperature Control
  • Temperature Limit Control
  • Programmable Temperature Control
  • Field Re-range Able Span

Documentation

Data Sheets

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