Maintenance - Observator Instruments Diff-Automatic User Manual

6. Maintenance

The DIFF is a precision-instrument. Simple routine checks will ensure that the DIFF will function for many
years:

Remove moisture with a clean moisture absorbent cloth before storing the DIFF.

Always remove the batteries when the DIFF is not used for a long time.

Store and transport the DIFF always in the included transport case.

Store the DIFF in dry conditions.

Always let the DIFF adjust to the ambient temperature. The DIFF will adjust faster when it is hold
against an exhaust vent.

Never remove the grills inside the DIFF.

Check the DIFF periodical for cracks.

Do not expose the DIFF to water.

Do not use aggressive detergents. This will damage the DIFF.

Do not expose the hoods to sharp objects. A damaged hood can give wrong measurements.

The DIFF will be best antistatic, if the instrument will be cleaned with a clean lint-free cloth
frequently. Normally this only applies to air conditions with a low humidity.

It is recommended for this instrument to be calibrated annually. After a repair, this instrument will
also need a calibration. You can request a RMA number on our website. Once you've received,
you can send the instrument with RMA form to us for repair and / or calibration. Note that the
instrument is scheduled when it actually arrives. In order to shorten, you can before you request a
RMA number, contact our service department for Air Technology, lab@observator.com.
Version: 12.6 EN Date: 22-09-2020
User Manual Diff
AT-DIFF
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