SEM1801/2XR Temperature Transmitter

Brand: Status Instruments

The SEM1801/2XR ‘smart’ transmitter is designed for use with RTD or Slidewire sensors and converts the sensor signal into an industry standard (4 to 20) mA loop-powered output. Pt100, 500, 1000, Ni, Cu sensors and Slide wire sensors up to 100 K Ohms can be accommodated. 

Other sensor characteristics or your own 22 point linearisation characteristic (for slidewire or linear resistance) can be downloaded into the product enabling it to be adapted exactly to your application. 

The SEM1801/2XR is approved to ATEX and IECEx standards allowing for use in hazardous area applications

Specifications

Accuracy

  • 0.2° C (0.36° F) + (°0.05% of Reading) + (Sensor)
  • Output: (mA Out/2,000) or 5 µA whichever is greater, Drift 1 µA / °C
  • Slide Wire: 0.1%

Ambient Temperature Range

  • 10° to 30° C (50° to 86° F)

Approvals & Certifications

  • ATEX
  • CE BS EN 61326
  • IECEx

Burn-Out

  • Downscale - 3.8 mA
  • Upscale - 21.5 mA

Communication

  • Baud Rate: 1,200 bit/sec
  • USB 2.0

Current

  • Excitation Current: < 200 μA

Electrical Connectors

  • Screw Terminals 2.5 mm, Maximum

Environmental Protection

  • Hazardous Area
  • IP65
  • Non-Hazardous Area

Humidity

  • 10 to 90% Relative Humidity, Non-Condensing

Operating Temperature

  • -40° to 70° C (-40° to 158° F)

Output

  • 2-Wire 4-20 mA Current Loop

Output Load

  • Maximum

Power

  • < 1 W Full Power Per Channel

Resistance

  • Maximum
  • Resistance RTD Input: 10 to 500 ohms ± 0.055 ohms
  • Resistance RTD Input: 2,500 to 10,500 ohms ± 10 ohms
  • Resistance RTD Input: 500 to 2,500 ohms ± 0.5 ohms

Resistance Effect

  • Lead Effect: 0.002° C/Ohms

Response Time

  • 500 milliseconds

RTD Type

  • Cu100
  • Cu1000
  • Cu53
  • Ni100
  • Ni1000
  • Ni120
  • Ni507.5
  • Ni604
  • Pt100
  • Pt1000
  • Pt500

Sensor, Probe Connection

  • 2-Wire

Sensor, Probe Material

  • Sensor: Platinum
  • Sensor: Silicon

Storage Temperature

  • -50° to 70° C (-58° to 158° F)

Supply Voltage

  • Loop Supply: 10-30 Vdc Per Channel

System Requirements

  • USB Configurator
  • Windows XP

Temperature Range

  • 0° to 100° C (32° to 212° F)
  • Sensor RTD: -200° to 750° C (-392° to 1,382° F)

Thermal Drift

  • (0 to 500) ohms 0.013 ohms / °C, (500 to 2,500) ohms 0.063 ohms / °C, (2500 to 10,500) ohms 0.27 ohms / °C

Turn-On Time

  • 5 seconds

Update Time

  • 160 milliseconds
  • Warm-Up: 2 minutes

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