INTEGRA Metering CALEC ST III User Manual

Service and repairs
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3-140-UM-EN-02
8 Service and repairs
DANGER
Electric shock
Touching energized system parts can cause immediate death or serious injury.
u Make sure that installation work is only carried out by authorized specialists.
u Before carrying out any work on the system, disconnect the power supply and check that
no voltage is present.
u If an insulation is damaged, disconnect the power supply immediately and arrange for im-
mediate repair.
8.1 Exchanging the calculator
u Disconnect CALEC® ST III from the power supply.
u Take off the front cover [}p.20].
u Pull the calculator(1) to the front to remove.
w The calculator(1) can be shipped for calibra-
tion.
u Plug the new calculator(1).
w The new calculator automatically updates it-
self after plugging it in.
1
8.2 Troubleshooting
If a fault occurs, the message «ALARM» will appear on the display.
l The display flashes red to indicate the alarm message.
l The short message in the information loop gives details of the reason for the fault/alarm.
Message Error/ alarm Possible cause Corrective measures
th-ERROR
Temperature error on hot
side, no measurement possi-
ble
l Sensor connected incor-
rectly
l Interruption/short circuit
in sensor cables
u Check wiring.
u Check disconnected sen-
sor wires with ohm meter.
u Check the input with a re-
sistor:
Pt 100: 100-150Ω
Pt 500: 500-620Ω
tc-ERROR
Temperature error on cold
side, no measurement possi-
ble
SYSt-Error EEPROM memory error
l Component error
l Device error
l Analog-Digital-Converter
not working
u Send the device to be
checked.

INTEGRA Metering CALEC ST III Specifications

General

Brand	INTEGRA Metering
Model	CALEC ST III
Category	Measuring Instruments
Language	English