Signal Generator/ Transmitter:
Function Checks
The SGV4 Signal Generator and MXT4 Transmitter have an in-built Self Test feature that automatically
tests the Locator’s circuits and transmitting aerials for correct performance each day (see pages 24-25).
A Self Test can also be initiated manually by holding down the Pulse/Continuous button while the Signal
Generator/Transmitter is switched on.
If you wish to carry out additional checks or to test the Signal Generator/ Transmitter functionality
more than once a day then the following procedures can be used:
Battery Condition
Turn the Signal Generator/ Transmitter on and check batteries are in good condition (see pages 22-23).
Replace or recharge batteries if necessary.
Induced Mode
This can only be checked in conjunction with a Locator as described on the previous page.
If the unit does not meet the performance expected, repeat the test with another Locator
to determine whether the Signal Generator/ Transmitter is at fault.
Connected Mode
Set the minimum Output Power Level, insert the Direct Connection Lead and the 10 metre Auxiliary
Earth Lead and then connect the red lead Crocodile Clip to the Auxiliary Earth Lead Crocodile Clip.
The pitch should change to a low tone.
The leads should be arranged to create an open loop on the ground of approximately 1m (3’)
in diameter. Check that a signal can be detected by the Locator in Generator/ Transmitter Mode
when pointed closely at the loop.
NOTE
These Function Checks are approximate only. If a deterioration in performance is suspected for any reason,
the equipment should not be used. It should be returned to C.Scope or a C.Scope Authorised Service Centre
for more thorough investigation.
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