SEM1801/2XR

UKEX, ATEX, IECEx rail temperature transmitter for RTD and potentiometer sensors

The SEM1801/2XR UKEX, ATEX, IECEx temperature transmitter is designed for use with RTD or Potentiometer sensors and converts the sensor signal into an industry standard (4 to 20) mA loop powered output. PC configuration (in the safe area) allows the user to select sensor type, range, filter, tag, units and error signal without requiring calibration equipment.

Additionally, the user may read live process data when connected to the PC: this allows for sensor offset, and output alignment calibration, where the user can enter values to match the actual process, therefore reducing system errors.

If required, the desired range can be specified at the time of order, removing the need for user configuration. If the
range is not specified then the transmitter will be shipped with the default range of Pt100 (0 to 100) °C, burnout high
and filter off.

UKEX, ATEX, IECEx TEMPERATURE TRANSMITTER FEATURE HIGHLIGHTS

SENSOR REFERENCING (Temperature mode)
The SEM1801/2XR sensor referencing via the Windows based USBSpeedlink software allows for close
matching to a known reference sensor eliminating possible sensor errors.

CUSTOM LINEARISATION
As standard the SEM1801/2XR has all common RTD sensors available from its software library.
Additionally, the SEM1801/2XR can be programmed with up to 22-point custom linearisation for ohms and
potentiometer inputs.

SENSOR BURN OUT DETECTION (Temperature mode)
If a sensor wire is broken or becomes disconnected the SEM1801/2XR output will automatically go to its
user defined level (upscale or downscale) or a pre-set value.

STABILITY
The SEM1801/2XR rail mount transmitter incorporates the latest digital technology to ensure accurate,
low drift performance.