INTRODUCTION
A simple push button operation ranges and
calibrates the SEM203P
4 to 20 mA transmitters eliminating the need
for soldering jumpers.
The SEM203P
in-head transmitter incorporates the latest digital technology to
ensure accurate drift free linearization. It connects to any
standard RTD temperature 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 with the flexibility of
reduced stock and the quick and easy way of bench re-ranging makes the
SEM203P the ideal choice
for the majority of RTD sensing requirements.
The SEM203P
is linearized to comply with all common RTD sensor standards ie
0.00385, 0.003916 etc. without affecting accuracy as the ZERO &
SPAN is set to a particular sensor type.
CALIBRATION PROCEDURE:
- Connect an RTD simulator/calibrator to the input
and between 8 & 30 volts DC to the output of the SEM203P.
- Set the simulator to the desired temperature at 4
mA. Press and HOLD the calibration button until the LED
starts to blink and then release.
- Set the simulator to the desired temperature at
20 mA. Press the calibration button and release. The
LED continues blinking and then shuts off confirming that the unit
is calibrated.
It's that simple and that fast.
