SEM104TC

**LOW COST TEMPERATURE TRANSMITTER** 

## SEM104 SERIES 

**LOW COST USER RE-RANGEABLE Pt100 INPUT THERMOCOUPLE INPUT K, T OR J TWO WIRE (4 TO 20) mA OUTPUT** 

## **INTRODUCTION** 

The SEM104 series is a (4 to 20) mA temperature sensor transmitter which can be housed in a head mount DIN standard connector. The SEM104P for Pt100 and SEM104TC for Thermocouple inputs are field rangeable if necessary by links on the printed circuit board and the use of on board SPAN and ZERO potentiometers.A wide selection of compatible probe assemblies are available with various immersion lengths and process connections. 

## **SPECIFICATIONS @ 20 °C** 

Output (4 to 20) mA loop powered, maximum 30 mA Loop Supply (10 to 30) VDC reverse connection protected Max. Loop Load (V.Supply -10) 0.020 Loop Volts Sensitivity 10 µA/V Temp. Stability Zero Drift type. 0.02 %/°C FRO Span Type. 0.005 %/C FRO Ambient Temperature* (0 to 70) °C operating (*at 24 V supply 250 Ω load) Ambient RH (0 to 95) % RH non condensing EMC Compatibility BS EN61326 

RANGE °C SEM104P SEM104K SEM104T SEM104J ~~ee eeee~~ -30 to 35 • ~~esee~~ -25 to 75 • ~~ee~~ ee 0 to 50 • ee **es** es es 0 to 100 • • • • 0 to 150 • • • • ee es 0 to 200 • • • • ee eses es 0 to 400 • • • • 0 to 600 • • 0 to 800 • ~~eeee ee PCE~~ 0 to 1000 • 

## **SEM104P PLATINUM RESISTANCE SENSOR** 

Pt100 Input BS EN 60751, DIN43760 Accuracy ± 0.2 °C plus ± 0.2 % rdg Response 100 ms to reach 70 % of final value Offset Adjustment Range dependant Span Adjustment (25 to 500) °C 

## **SEM104K, T OR J THERMOCOUPLE SENSOR (ISOLATED JUNCTION)** 

Output (4 to 20) mA (directly proportional to mV input) Accuracy ± 0.1 %FS plus cold junction errors non-linearised Response 100 ms to reach 70 % of final value Offset Adjustment ± 100 °C, solder link and potentiometer Span Adjustment (100 to 1000) °C Impedance > 1 M Ω Burn Out Up scale standard. Downscale by link Cold Junction Automatic (0 to 70) °C Accuracy 0.2 °C @ 20 °C Tracking + 0.05 °C/°C 

Other ranges can be configured by the use of links on the SEM PCB, full details are supplied with each transmitter. 

**LOW COST TEMPERATURE TRANSMITTER** 

## **MECHANICAL DETAILS** (All dimensions in mm) Co) 

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Ø42 23<br>—4 + 4<br>f<br>33<br>**----- End of picture text -----**<br>


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CONNECTIONS<br>Co)<br>**----- End of picture text -----**<br>


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+<br>TC<br>- Pt100<br>2 or 3 wire<br>**----- End of picture text -----**<br>


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V Supply<br>24 V Typical<br>LOOP<br>LOAD<br>**----- End of picture text -----**<br>


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ORDER CODE<br>SEM104 SENSOR / Lo / Hi<br>Platinum Resistance Sensor Pt100 P @ 4 mA @ 20 mA<br>——_TLt<br>Chromel/Alumel  Thermocouple K<br>Copper/Constantan Thermocouple T<br>Iron/Constantan Thermocouple J<br>ee<br>ACCESSORIES:<br>RMK/1/G “G” DIN rail profile mounting kit<br>_<br>RMK/3-T Top Hat DIN rail profile mounting kit<br>=<br>**----- End of picture text -----**<br>


Tel: +44 (0)1684 296818 Fax: +44 (0)1684 293746 Email: sales@status.co.uk Website: www.status.co.uk 52-215-2075-02 Issue 03 

Status Instruments Ltd Green Lane Business Park Green Lane, Tewkesbury Gloucestershire, UK GL20 8DE