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4 Supplement
4.3 Error messages
Overrange / underrange covers the following events:
• Probe break/short-circuit
• Measured value outside the probe measuring range
• Display overflow
No keyboard operations are possible during device initialization (all displays are switched on, the
upper 7-segment display flashes).
Display Cause Fault remedy
-1999
(flashing!)
Underrange of the dis-
played value.
Is the medium being measured within the
range (too hot? too cold?)
Check probe for break and short-circuit.
Check the probe connection and the termi-
nals.
Check cable.
Check that the connected probe complies
with the configured probe type
9999
(flashing!)
Overrange of the displayed
value.
PErr Firing curve start is impos-
sible because
the actual value is t than
the setpoint 1
The firing curve can be started when
the actual value is than the setpoint 1
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