INTEGRA Metering CALEC ST II Instructions De Montage Et Mode D'emploi page 86

The short message in the information loop gives details of the reason for the fault/
alarm.
Message Error/alarm
th-ERROR Temperature error
on hot side,
no measurement
possible
tc-ERROR Temperature error
on cold side,
no measurement
possible
SYSt-Error EEPROM
memory error
th-ALArM Temperature on the Temperature of the Check the current
hot side is outside
the permitted
measuring range
tc-ALArM Temperature on the As above
cold side is outside
the permitted
measuring range
dt-ALArM Temperature
difference is out-
side the permitted
measuring range
86
Possible cause
• Sensor connected • Check wiring
incorrectly
• Interruption/short
circuit in sensor
cables
As above
Component/device Send the device to
error
heat cycle is too
high or too low
• Temperature
difference in
the heat cycle
is too large or
is negative
• Sensor problem
Corrective measures
• Check disconnected
sensor wires with
ohm meter
• If OK, check the input
with a resistor:
Pt 100: 100 - 150Ω
Pt 500: 500 - 620Ω
As above
be checked
temperature in the
InStAnt submenu
As above
Check the current
temperature difference
in the InStAnt
submenu
CALEC ST II
®