Dwyer Series PUF - Manual (Page 46)

4: Maintenance & Repair
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4: Maintenance & Repair
4.1 Introduction
The Series PUF is not field serviceable and should be returned if repair is needed. Field repair should not be
attempted and may void warranty
4.2 General care
The following notes are provided as a guide to general equipment care.
1. Ensure the unit is switched off and disconnected from the mains, then wipe the exterior of the instrument with
a clean, damp cloth or paper towel. The use of a solvent may damage the surface.
2. The instrument contains a rechargable battery, dispose safely and in accordance with the local regulations in
force in the country of operation.
3. Ensure all cables and connectors are kept clean and free from grease or contaminants. Connectors may be
cleaned with a general purpose cleaner if necessary.
4. Avoid the use of excessive grease/ultrasonic couplant on the sensors as this may impair the performance of
the equipment. Excessive grease/couplant can be removed from the sensors and transducer holders using
an absorbent paper towel and a general purpose solvent cleaner.
5. We recommend that the ultrasonic couplant is replaced on the sensors every 6 months, especially on pipes
where the application is too hot to touch. If the signal level drops below 30% this is also an indication that the
sensors need re-greasing.
6. Regularly check all cables/parts for damage. Replacement parts are available from Dwyer.
7. Ensure the person who services your instrument is qualified to do so. If in doubt, return the instrument to
Dwyer with a detailed report on the nature of any problem.
8. Ensure that suitable precautions are taken when using any materials to clean the instrument/sensors.
9. If the instrument was supplied with dust or dirt caps make sure they are re-fitted when the instrument is not in
use.
4.3 Warranty / Return
Refer to “Terms and Condition of Sales” in our catalog and on our website. Contact Customer Service to receive
a Return Goods Authorization number before shipping the product back for repair. Be sure to include a brief
description of the problem plus any additional application notes,
WARNING
Do not disassemble this unit.
Return the unit to an approved service agent or place of purchase for
further advice.