Article No. 28 100-
Version 12.2007
Page 10 of 12
Error messages
Error code Significance
Error E1
The set value is invalid
Error E2
Measured value too small (<3mA => probe defective)
Error E3
Measured value too great for zero point calibration (probe must not be immersed)
Error E4
Not defined
Error E5
Not defined
Error E6
Set height is too great (measured value is too small - the probe must be immersed)
Error E7
Set volume is too great (measured value is too small - the probe must be immersed)
Error E8 Measured value is too great (probe short-circuited, defective, or incorrectly
connected)
Error E9
Measured value is 0 (no probe connected, or wire breakage, or reversed polarity)
ErrorE10
Calibration error
ErrorE11 Warning ‘Tank empty’ (tank content is actually too small for calibration) Press OK to
continue nevertheless)
Checking the level probe signal: At 0 cm fill level ➜ approx. 3.5 – 4.5 mA
Can be checked through menu item 22. For 1 m water column ➜ approx. 9 - 11 mA (for
standard probe with measuring range of 250 mbar)
OPERATION
The contents indicator does not require any attention during ongoing operation.
PERFORMANCE CHECK
After refueling the tanks or once per year, check whether the indicated value corresponds to the fill
level.
MAINTENANCE
SAFETY INFORMATION for water-polluting operating media:
Any material leakage occurring during maintenance must be collected.
Observe the respective legal regulations!
With correct installation and operation, the contents indicator is free of maintenance. The
indicator and the probe element must be checked annually, as described under PERFORMANCE
CHECK.
REPAIR
In case of repeated error or alarm message (relay output) while the tank content does not reach /
remains under the set fill level alarm threshold at the probe element, check the connection line of
the signal and probe element for breakage or short-circuit, re-install if necessary.
If the measures explained under the headings START-UP, OPERATION and MAINTENANCE fail
to achieve regular re-START, and unless the instructions have been misunderstood, the device
must be removed and sent to the manufacturer’s for a check-up. Any unauthorized handling will
result in loss of any warranty claims.
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