Troubleshooting Guideline - Studer SBM-01 Bedienungsanleitung

The super-lock must not be confused with the setup-lock (Function F20).
The big difference between the two is that anybody can disable the
setup-lock, even without communication between SBM-01 and PC. The
setup-lock is used to avoid accidental altering of the Function values.
While the super-lock can only be (de-)activated via the PC-link using a
unique password. The super-lock feature is primarily meant for warranty
purposes.

5. TROUBLESHOOTING GUIDELINE

PROBLEM
The monitor doesn't operate (no
display)
Current readout gives wrong
polarity (positive current instead
of negative when discharging)
The monitor resets all the time
No changes can be made in the
setup-mode
Not all readouts in normal mode
can be selected
'CHARGE BATTERY' or
18
SBM-01 high precision battery monitor
REMEDY OR SUGGESTION
- Check monitor- and battery
side connections.
- Make sure the inline fuses are
installed and not blown.
- Check battery voltage. Battery
might be flat. Vbatt must be
> 8VDC.
- Try to restart the monitor by
removing/placing the fuses
again.
- Current sense leads from the
shunt are reversed. Check the
installation guide.
- Check the wiring for corrosion
and/or loose contacts.
- Battery might be flat or
defective.
- Check if the setup-lock is OFF
(Function F20)
- Your SBM-01 might be
locked by the super- lock. Ask
the installer for the password to
unlock the monitor using the
PC-link.
- Installer has cancelled some
parameter readouts using the
administrator software with the
PC-link.
- Charge battery full