SmartBox
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part no. 28 100 57 f
OPERATION
The product requires no operation while it is running.
TROUBLESHOOTING
Error code
Significance
Error E1
The set value is invalid
Error E2
Measured value too small (I < 3.7 mA
probe defective)
Error E3
Measured value too great for zero point calibration (probe must not be
immersed)
Error E4
Measured value not plausible. Check menu item “9.Offset probe”
Error E5
Set height is more than the height of the tank. (incorrect entry menu step 10)
Error E6
The current measured value is too low as a reference point. The probe must
be submerged. The set height (menu step 10) is too high (the measured
value is too low) Check menu item "9. Offset probe". Otherwise, probe fault.
Error E7
The current measured value is too low in relation to the set tank height or to
the tank volume. The probe must be submerged.
Error E8
Measured value (probe current) is too high - check electrical connection and
measuring range of the probe, switch power supply off and on again. Check
menu settings steps 1 to 5. If necessary, Check menu step "9.Offset probe".
Otherwise, probe fault.
Error E9
Probe current = 0 mA - no signal current. The probe cable is poled wrongly
or interrupted; check cable extension, reconnect if necessary.
Error E10
Calibration error. Disconnect the display device from the power supply, wait
5 s and then reconnect. Otherwise, probe fault.
Error E11
The liquid level in the tank is actually too low for an exact
measurement. You can still press [Enter] to confirm and continue.
Checking the probe signal:
Can be checked through menu item “22.Test current”:
At 0 cm fill level
approx. 3.7 - 4.3 mA
For 1 m water column
approx. 9 - 11 mA (standard probe with measuring range 250 mbar)
