Observator Instruments DIFF, Руководство пользователя

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DIFF automatic volume flow meter
User manual
V11.2 - EN
Page 22
TDC 16-7-2012
OBSERVATOR
instruments
9. Trouble shooting
9.1 Errors
symptom solution
Message low battery whilst they are fully
charged. The used batteries are new. -New batteries will only reach full capacity after
charging them a couple times. Use the white battery
charger as much as possible.
Message low battery whilst they are fully
charged. This occurs mostly while
measuring high flows.
Old batteries can show these symptoms. Replace
the batteries if this occurs
The DIFF keeps measuring and the flow
value is high. Charge the batteries. The battery capacity does not
reach the 80%. Order new batteries if the old
batteries don’t reach the full capacity.
The DIFF does not power when the
selection button is pressed more then four
times. Replace the batteries or replace the fuse. (Chapter
8.2).
Extraordinary power usage Contact you dealer or Observator.
The calibration fails There are pressure differences during the calibration
or the DIFF is moved during calibration. Recalibrate
when the DIFF is on a flat surface.
It is not possible to get a successful
calibration.
Return the DIFF to Observator for factory calibration
or repair.
Difficult to read display Check the settings of the contrast and backlight.
(chapter 3.4)
Display turns dark. This is caused by ESD or an auto power off. Reinsert
the fuse and switch the DIFF on.
A high deviation in the reading Charge the batteries and recalibrate the DIFF.
An over ranged error occurs. The measured flow is above the measuring range of
the DIFF. Take partial measurements and add these
or lower the flow that needs to be measured.
A high deviation in the reading and the
DIFF indicates the wrong flow direction. The measurement was started before the DIFF was
on the vent.
Deviation in the measurement Make sure that the DIFF is fully placed over the vent.
The measurement takes a long time Make sure you keep the DIFF in place while
measuring. Make sure that there are no gaps
between the DIFF and the ceiling.
The motor stops during the measurement The flow is around 10m3/h the lower limit of the
DIFF. Retry the measurement.
The DIFF leaves marks on the ceiling. Clean the rubber with non aggressive detergent
????? On the display in the battery menu.
You just exchanged the batteries. After a couple of
minutes the ???? will disappear.
The DIFF does not work. The DIFF is in auto off function. Switch it back on
The excel button does not work Excel is not installed.