Getting Started - Elcometer SG80BDL Operating Instructions Manual

Sonic gauge
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3 GETTING STARTED

3.1 Fitting batteries
Your gauge may be used with dry cell batteries or rechargeable
Battery
batteries. 3 x LR6 (AA) alkaline batteries are supplied with this
compartment
cover
gauge.
When the battery voltage is low the entire display will start to
flash. When this occurs the batteries should be replaced.
To fit or replace batteries:
1. Locate battery compartment cover at top of gauge.
2. Unscrew battery compartment cover.
3. Referring to battery polarity instructions on rear of gauge,
insert batteries into gauge ensuring correct polarity.
4. Replace battery compartment cover.
Note: Remove the batteries from the gauge if it is to remain
unused for a long period of time. This will prevent damage to the
gauge in the event of malfunction of the batteries.
3.2 Choosing the transducer
When you purchased your gauge you should have also
purchased a suitable transducer for your application. If you have
not yet done so, refer to "Transducers" on page 30, which will help you identify the correct
transducer type. Alternatively contact Elcometer NDT, your local Elcometer NDT supplier or visit
www.elcometerndt.com
3.3 Fitting the transducer
The transducer transmits and receives ultrasonic sound
waves that the gauge uses to calculate the thickness of
the material being measured.
The transducer connects to the gauge via the attached
cable, and two coaxial connectors. When using
transducers manufactured by Elcometer NDT, the
orientation of the dual coaxial connectors is not critical;
either plug may be fitted to either socket.
The transducer must be used correctly in order for the gauge to produce accurate, reliable
measurements.
The illustration shows the two semicircles of the wearface
and the barrier separating them on a typical transducer.
One of the semicircles transmits ultrasonic sound into the
material being measured, and the other semicircle
receives the sound echoes back into the transducer.
Wearface
When the transducer is placed against the material being
measured, it is the area directly beneath the centre of the
wearface that is being measured.
5

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