Status Instruments SEM203/P Pt100 In-Head Temperature Transmitter, 4-20mA, 10-30VDC

Status Instruments

$125.00
$125.00 $180.00
Tax included.

SEM203/P

2 in stock

The Status Instruments SEM203/P is a compact in-head temperature transmitter that converts a 2 or 3-wire Pt100 RTD sensor signal into a standard 4-20 mA two-wire current loop. It is designed to fit inside a standard DIN sensor connection head, making it a simple way to send a temperature reading from a probe or thermowell assembly to a PLC, controller, indicator or data logger.

Set-up is done with a push button, with no PC or software needed. You can select the temperature range and burnout direction, and trim the output at both the 4 mA and 20 mA points against a reference to match the sensor. The default range is 0 to 100 °C with upscale burnout.

Applications

  • Pt100 probes and thermowell assemblies feeding PLCs and controllers
  • Process, plant room and HVAC temperature monitoring
  • Retrofitting a 4-20 mA output into an existing Pt100 sensor head

Mount in a sensor connection head rated IP20 or better (IP65 recommended for outdoor or washdown areas). Keep sensor wires shorter than 3 m to meet the EMC rating. Sensor and connection head sold separately.

Features

  • Accepts 2 or 3-wire Pt100 sensors
  • 4-20 mA two-wire output, loop powered from 10-30 VDC
  • Push button configuration, no PC required
  • Push button sensor matching with output trim at 4 mA and 20 mA
  • User-selectable upscale or downscale sensor burnout
  • Digital design for high stability and low drift
  • Fits standard DIN in-head sensor enclosures

Specifications

  • Input: Pt100 RTD, 2 or 3-wire, linearised to BS EN 60751 (IEC 751)
  • Measurement range: -200 to 850 °C
  • Minimum span: 25 °C
  • Default range: 0 to 100 °C, upscale burnout
  • Input accuracy: ±0.2 °C ±0.05 % of reading (at 20 °C)
  • Lead resistance: 20 Ω per leg maximum; effect 0.002 °C/Ω
  • Output: 4-20 mA two-wire current loop
  • Output accuracy: mA output / 2000 or 5 µA, whichever is greater
  • Supply: 10-30 VDC, loop powered
  • Loop voltage effect: 0.2 µA/V
  • Maximum load: (supply voltage - 10) / 20 kΩ, 700 Ω at 24 VDC
  • Burnout: upscale 21.5 mA maximum, downscale below 3.9 mA
  • Response time: 1 s; warm-up 60 s to full accuracy
  • Operating temperature: -40 to 85 °C (full accuracy -30 to 75 °C)
  • Humidity: 10-90 %RH, non-condensing
  • Isolation: non-isolated
  • Dimensions: 43 mm diameter x 21 mm high
  • Fixing: 2 x Ø5.5 mm holes on 33 mm centres, Ø4.5 mm centre hole for sensor wires
  • Weight: 31 g
  • Approvals: EMC to BS EN 61326, RoHS 2011/65/EU
  • Manufacturer part no: SEM203P
Status Instruments SEM203/P Pt100 In-Head Temperature Transmitter, 4-20mA, 10-30VDC

$125.00