SmartBox
®
4 / SmartBox
®
4
PRO
28 / 32
part no. 28 400 57 c
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 (level 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 item 10).
Error E6
The current measured value is too low as a reference point. The level probe
must be submerged. The set height is too high (the measured value is too low
menu item 10). 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 level 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 item “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.
Error E12
(Still) no measured value available from external tank 2..4
only SmartBox
®
4.
Error regarding GSM modem / telecommunication functions
Error M0
Modem not active (PIN 000 completely deactivates to modem)
Error M1
Communication error with the internal modem. (The SmartBox will
automatically perform reset and re-attempt connection).
Error M2
SIM card faulty or illegible
Error M3
PUK must be entered (3 failed attempts to enter the PIN. The SIM card must
be inserted into a mobile phone and unblocked by means of the PUK.
Error M4
No credit remaining (only for prepaid card)
Error M5
No net found (bad reception, possibly additional external antenna?)
Error M6
Net error or other error when sending an SMS
Error M7
Log-in not yet performed
Error M8
Dial block (because of too many log-in errors, login is attempted only once per
day after 7 days, and after 255 days only once on activation or on manual
activation of the OK button)
Error M9
Target telephone number has not been programmed yet. (It is required for
sending an SMS, for example for sending the test SMS)