INPUT
Sensor Type PT100 100R @ 0°C 2 or 3 Wire
Sensor Range (-200 to +850) °C (18 to 390) :
Sensor Connection Screw terminal
Minimum span (*1) 25 °C
Linearisation BS EN 60751(IEC 751) standard /JISC 1604
Measurement Accuracy (*2) 0.1 °C +/-0.05% of Reading
Thermal Drift 25ppm/ °C
Excitation current <200 uA
Lead Resistance effect 0.002 °C / Ohm
Maximum lead Resistance 20 ohms per leg
OUTPUT
Output Type 2 wire 4 to 20 mA current loop
Output range (4.0 to 20.0) mA
Output Connection Screw Terminal
Maximum output 21.5mA (in high burnout condition)
Minimum output 3.8 mA (in low burnout condition)
Accuracy (mA output /2000) or 5uA
(Which ever is the greater)
Loop Voltage effect 0.2 uA / V
Thermal drift 1 uA / °C
Maximum output load [(Vsupply-10)/20]K Ohms
(Example: 700 ohms @ 24V)
GENERAL SPECIFICATION
Update time 500 mS
Response Time 1 second
Start up time 4 Seconds ( I out < 4 mA during
start up)
Warm-up time 1 minutes to full accuracy
Power Supply 10 to 30 Volts dc |
Description:
A simple push button operation ranges and calibrates the SEM203 (4 to 20) mA
temperature transmitter, eliminating the
need for soldering links, potentiometers or PC's.
The SEM203 in-head transmitter incorporates the latest digital technology to
ensure accurate drift free linearisation.
It connects to an appropriate sensor and converts the output to a linear (4
to 20) mA output signal, providing a level of
performance at a cost that was not possible with earlier analogue types.
High accuracy and stability coupled with the flexibility of reduced stock
holding and the quick and easy way of bench
re-ranging makes the SEM203 the ideal choice for the majority of temperature
sensing requirements.
The SEM203 is linearised to comply with all common RTD sensor standards i.e.
0.00385, 0.003916 etc. all common
thermocouple types and 2252 Ω and 10 kΩ YSI Thermistors, and up to 10 kΩ
potentiometers.
An on board LED indicates the successful completion of the range programming
and also provides an instant indication
of sensor health.
Click to download technical specification/manual. |
