TEMPERATURE CONTROLLER -5002U-P
REF NO: m55A/om/201
Issue NO: 03
Page
29
of
35
10.2 PV input sensor calibration
When user enters in calibration menu, PV display shows message
tc.l.s
(Thermocouple/Linear Span) for sensor input span calibration for Thermocouple and
Linear input type.Feed sensor input using a calibrator, such that process value is close
to upper range value.
Note:
The controller allows the user to calibrate se
nsor‟s input anywhere in the range,
but it is recommended that it should be calibrate the input at points close to lower and
upper range values.
DP of last digit will blink to indicate that the value can be changed. Use Inc/Shift key to
correct the displayed reading to the desired process value and press ENT key. The
controller will display message
wait
(wait) in the SV display to indicate that it is doing
the necessary calculations.
When the calculations are over, the new calibration values are stored automatically.
For TC and Linear input type user has to calibrate SPAN only.
FOR RTD input user has to calibrate ZERO and SPAN.
PV shows the message
RTD.Z
(calibration Zero). SV display shows process value
corresponding to input sensor value and old calibration data. Feed sensor input using
a calibrator, such that process value is close to sensor‟s lower range value. Use
Inc/Shift key to arrive at the desired process value. Press ENT key to register the
changes.
The controller will display message
wait
(wait) in the SV display to indicate that it is
doing the necessary calculations. Depending on the situation, this process may take
few seconds to calibrate.
Once zero is calibrated, press MENU key for RTD span calibration.
PV shows the message
RTD.S
(rtd.S) (calibration Span). SV display shows process
value corresponding to input sensor value and old calibration data. Feed sensor input
using a calibrator, such that process value is close to sensor‟s upper range value. Use
Inc/Shift key to arrive at the desired process value. Press ENT key to register the
changes.
The controller will display message
wait
(wait) in the SV display to indicate that it is
doing the necessary calculations. When the calculations are over, the new calibration
values are stored automatically. In case, the controller cannot complete the calibration
due to any reason, it will hold previous calibration parameters. Calibration for input
sensor is over.
10.3 Retransmission1 and Retransmission2output calibration (Voltage/current
output)
Press MENU key repeatedly, till PV display shows message
rt1.Z
(Retransmission1
output zero calibration).
SV display shows the value being outputted on Retransmission output terminals.
Measure the value using a highly accurate digital multi meter. Use Inc/Shift key to
correct the displayed reading to the measured value. Press ENT key. The controller
will store zero calibration value. Press MENU key to calibrate retransmission output
span calibration menu.
PV shows the message
rt1.S
(Retransmission1 output span calibration). SV display
shows the value being outputted on retransmission output terminals. Measure the
value. Use Inc/Shift key to correct the displayed reading to the measured value. Press
ENT key. When the calculations are over, the new calibration values are stored
