SEM203/TC

TEMPERATURE TRANSMITTERS 

## SEM203 TC 

**SUITABLE FOR K, J, N, E, T, R, S THERMOCOUPLES PLUS mV SIMPLE PUSH BUTTON CONFIGURATION ADVANCED USER CONFIG FOR ACCESS TO 56 PRE SET TEMPERATURE RANGES USER PUSH BUTTON TRIM** 

**PROGRAMMABLE BURNOUT** 

## **INTRODUCTION** 

The SEM203TC is a cost effective “smart” in head transmitter that accepts thermocouple temperature sensors and converts sensor output over a configured range to a standard industrial (4 to 20) mA transmission signal. 

A simple push button operation allows the user to select TC type, Burnout direction, Select fixed ranges and trim (4 and 20) mA points. 

The SEM203TC in head transmitter incorporates the latest digital technology to ensure accurate drift free performance. 

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 (0 to 1000) °C type K. 

## **PUSH BUTTON CONFIGURATION** 

## **SPECIFICATIONS @ 20 ° C** 

## **User Range** 

Two level of configuration are available to the user, the first level user range, allows the user to re-range the transmitter. 

This level is available under normal use and operates in a similar manner to the previous SEM203TC Product. The user can identify the input type set by counting the number of program led flashes on power up. The input type cannot be change at this level of configuration. 

## **Advanced user configuration** 

In this level the single push button and two LED indicators are used the user to navigate the user through a series of five menus, allowing full configuration of the transmitter. The menus are as follow:- 

- Menu 1 Select Input type K, J, N, E, R, S, T thermocouple or mV 

- Menu 2 Select either user range set by USER RANGE or select one of seven (per input) fixed ranges 

- Menu 3 Select burnout direction 

- Menu 4 Trim output current at either 4 mA or 20 mA. 

Menu 5 Reset to factory default and clear user trim 

## **INPUT** 

|**Sensor**|**Range (**°**C)**|**Accuracy**|
|---|---|---|
|**K**|-200 to 1370|± 0.1% of F.S.  ± 0.5 °C<br>(plus anysensor error)|
|**J**|-100 to 1200|± 0.1% of F.S.  ± 0.5 °C<br>(plus anysensor error)|
|**E**|-200 to 1000|± 0.1% of F.S.  ± 0.5 °C<br>(plus anysensor error)|
|**N**|-180 to 1300|± 0.1% of F.S.  ± 0.5 °C<br>(plus anysensor error)|
|**T**|-200 to 400|± 0.2% of F.S.  ± 0.5 °C<br>(plus anysensor error)|
|**R**|-10 to 1760|± 0.1% of F.S.  ± 0.5 °C<br>(plus any sensor error)<br>over range 800 to 1600|
|**S**|-10 to 1760|± 0.1% of F.S.  ± 0.5 °C<br>(plus any sensor error)<br>over range 800 to 1600|
||**Range (mV)**||
|**mV**|-10 to 70|± 0.02 % of full scale|



**Isolation** Tested to 250 V dc **Sensor Burnout** Either up or down scale output **Cold Junction** Range (-40 to 85) °C; Accuracy ±0.5 °C Tracking ± 0.05 °C / °C **Stability** (-20 to 70) (± 0.15 °C / °C at zero) + (± 0.1 °C / °C at span) Typically for (-40 to -20) and (70 to 85) 

## TEMPERATURE TRANSMITTERS 

**OUTPUT** Output Type 2 wire (4 to 20) mA current loop > **MECHANICAL** Output range 4.0 mA to 20.0 mA Output Connection Screw Terminal Maximum output 21.5 mA (in high burnout condition) SIDE VIEW BASE VIEW Minimum output 3.8 mA (in low burnout condition) Accuracy (mA output / 2000) or 5 uA ~~6~~ (Which ever is the greater) Loop Voltage effect ± 0.2 uA / V Thermal drift ± 1 uA / °C Typically ± 2 uA / °C Max Ø 43.0 mm Maximum output load [(Vsupply-12)/20] K Ohms (Example 600 ohms @ 24 V) 33.0 mm CENTRES **Fixed Ranges** ~~Ny i~~ **Inputs Input Inputs Input mV K,J,E, & N T R, & S** 21.0 mm **(°C) (°C) (°C) mV Mounting holes: two holes 5.5 mm diameter, 1** User **33 mm centres 2** 0 to 1000 0 to 400 800 to 1760 0 to 70 **Centre Hole sensor wire entry: 4 mm 3** 0 to 1200 0 to 250 800 to 1600 0 to 5 **4** 0 to 600 0 to 200 800 to 1400 0 to 10 **5** 0 to 500 0 to 150 1000 to 1760 0 to 20 **6** 0 to 250 0 to 100 1000 to 1600 0 to 25 **7** 0 to 100 0 to 50 1000 to 1400 0 to 50 **8** -100 to 100 -100 to 150 0 to 1600 -10 to 10 ~~====~~ | | **GENERAL SPECIFICATION** Update time 500 mS Response Time  Start up time Within 8 Seconds (Output < 4 1 second > **WIRING CONNECTIONS** mA during start up) Warm-up time 1 minute to full accuracy Power Supply (12 to 30) Volts dc - + **ENVIRONMENTAL** Ambient operating range (-40 to +85) °C Ambient storage temperature (-50 to +90) °C Ambient humidity range (10 to 90) % RH non condensing **PHYSICAL T/C** Dimensions 43 mm diameter; 21 mm height Weight 31 g (encapsulated) **R APPROVALS** Lee 0 MEST **M** ~~ee~~ **EMC - BS EN 61326** Electrical equipment for ~~ol~~ measurement control and laboratory use. ANNEX A _ **LOAD** Immunity test requirements for equipment intended for use in industrial locations **U** ANNEX F Test configurations, operational ~~E—{_~~ ) conditions and performance criteria for transducers with integrated or remote signal conditioning. 

IEC 61000-4-2 Electrostatic discharge IEC 61000-4-3 EM Field IEC 61000-4-4 Transient Burst (output) IEC 61000-4-5 Surge (output) 

## **ORDER CODE: SEM 203TC** 

Note - Sensor input wires to be less than 3 metres to comply. 

Status Instruments Ltd Status Business Park Gannaway Lane, Tewkesbury Gloucestershire, UK GL20 8FD 

Tel: +44 (0)1684 296818 Fax: +44 (0)1684 293746 Email: sales@status.co.uk Website: www.status.co.uk 

D2465-01-07  CN5359 SEM203TC Data Sheet