Testing Before Use - UWEX 722 C Operation Manual

16
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A multiple turn calibrator for coarse
setting of sensitivity is placed close
to the battery contacts inside the
handle in the battery compartment.
To open the battery compartment
unscrew handle. To adjust standard
sensitivity slide
knob to mid position in its slot and
calibrate sensitivity trimmer
the battery compartment just below
the audio threshold (Pict.7). Tuning
clockwise increases sensitivity.
Make sure that
operational temperature
recalibrating coarse
adjuster. Give at least 25 min. under
normal working conditions before
such intervention.
7.

Testing before use

®
Take UWEX 722 C out from its carrying bag. Unscrew handle. Insert 9V battery
watching correct polarity as indicated by markings. Refit handle. To extend detector use
extension rod.
Rotate handle clockwise into ON position with white dots matching and set sensitivity
knob to required sensitivity level. During calibration the detector head must be held
approx. 1,5m away from any metal. It may be difficult to calibrate detector inside
buildings due to plenty of metal interference.
A fresh battery gives approx. audible 1 click every 3 seconds. The click rate increases
with dropping voltage. If battery power is below nominal value the detector gives an
audio alarm of low frequency (approx. 100Hz) which can not be cancelled using the
sensitivity adjuster..
In case of missing clicks or constant alarm detector is not operational. Check battery.
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© 2005, Ebinger Prüf- und Ortungstechnik GmbH.
Operations Manual UWEX
external sensitivity
inside
detector has
before
sensitivity
®
722 C
Pic. 6: detector with handle removed,
battery compartment open,
9V lithium PP 3 battery