Operating instructions

82 METTLER TOLEDO DE40/50/51 Density Meter
16. Error Messages and Malfunctions
16.1 Error Messages
Error message Cause Measure
Nozzle error The sampling nozzle did not Remove the obstacle.
move normaly (SC24, DCU-300 or Replace the nozzle if it is bent or
SOP50. borken.
Press [Stop] key to reset the
error.
Table error The rotation of the turnable was Remove the obstacle.
not normal (SC24). Press [Stop] key to reset the
error.
Temperature The set temperature can not be Switch off the instrument and call
control error reached within 2 hours after start. METTLER TOLEDO service.
Communication Cable not connected correctly. Check connection of the
error communication cable.
Wrong instrument selected in Check that the correct instrument
Function 3. is selected in "Function 3": SC24,
CHG, DCU.
Viscosity Correction No adjustment with viscosity correction. Perform adjustment with viscosity cor-
Error rection on.
Air bubbles or smudge in the cell. Check measuring cell.
16.2 Malfunction
Malfunction Cause Measure
Instrument can Cable not plugged in properly, Check power cable and mains.
not be switched fuse blown. Replace fuse if blown (T3.15A/250V).
No "Ready" Air inlet at rear of the instrument Remove obstacles that block the
message is blocked. air inlet.
reached. Cooling fan not operating. Call METTLER TOLEDO service
for help.
Stored data are The internal battery is discharged. Swich off the instrument and call
lost (e.g. time) METTLER TOLEDO service.
Printer not DIP switch of printer not set Check DIP switch setting of the
printing. correctly. printer.
Wrong communication setting for Check setings in "Setup 0".
printer.
Error messages and malfunctions