Error Messages; Further Information - JUMO meroTRON 104 Manual Breve

4 Operation
NOTE!
If the text "Set clock" is displayed after power-on, this message must be confirmed with the "Menu/OK"
key. The date and time should then be set immediately (configuration).
After power-on again, the text is no longer displayed, even if the date and time have not yet been set!
4.4

Error messages

Display
<<<<
>>>>
----
----
----
****
++++
In the event of an error, the controller switches to manual mode.
4.5

Further information

For further information regarding the operation and configuration of the device, see the operating man-
ual, as well as the interface description and the ST editor manual, if necessary.
chapter 1.7 "Available technical documentation", Page 12
28
Possible cause
Measuring range underflow
Short-circuit (probe/line)
Break (probe/line)
Polarity
Measuring range overflow
Break (probe/line)
Polarity
No valid input value (internal error)
Division by zero
Incorrect math value or ST code val-
ue
Display capacity exceeded
When the cold junction temperature
is displayed:
- Temperature outside the permissi-
ble range
- Analog input not configured for ther-
mocouple
Measures
Check sensor and line (break, short-
circuit, polarity).
Check connection terminals.
Check configuration (signal type, lin-
earization, resistance measuring
range, scaling).
For optional modules: Check that the
module is fitted correctly.
Switch-off the device and switch it on
again.
Check math function.
Check ST code.
Display the value in another display
that has more digits.
Check configuration of the analog in-
put.