Thyracont VD83, Operating Instructions Manual

Page: 39 / 44

39
6 Maintenance and Service
Danger of possibly contaminated parts!
Contaminated parts can cause personal injuries. Inform yourself
regarding possible contamination before you start working. Be sure
to follow the relevant instructions and take care of necessary
protective measures.
The unit requires no maintenance. External dirt and soiling can be removed by a
damp cloth.
Should a defect or damage occur on the VD83, please send the instrument to us
for repair.
The unit is not planned for customer repair!
Malfunction of the unit, which are caused by contamination or
break of filament are not covered by warranty.
Error messages and malfunction
Problem Possible Cause Correction
high measurement error contamination, ageing,
extreme temperature,
maladjustment
readjustment
display shows "ur" pressure under range
(pressure < 5x10
-4
mbar)
error message "Err" adjustment done at wrong
pressure
measurement error out of
adjustment range displayed pressure must be
>40mbar f. atmosphere
adjustment, <4x10
-2
mbar f.
zero adjustment
send unit for repair
error message "Err1" defective sensor send unit for repair