sebaKMT Hydrolux HLE 500, Руководство по эксплуатации

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Operating instructions HLE 500/5000
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MAN_HLE500_HLE5000_eng_02
2.6.2 PAM U
PAM U was developed primarily as a sensor rod or contact
microphone, but can be used universally by exchanging the
contact point for various adapters.
Sensor rod variant:
In this variant the PAM U is suitable for listening to
valves, hydrants or even directly on a pipe.
It is particularly good when used as a ground
microphone on soft ground (soil, meadow etc.). Push
the point as deep as possible into the ground to get
optimum acoustic contact to the source of the noise.
When using an extension rod VST 1 the working
posture is more comfortable but, due to the extension,
wind and surrounding sources of noise are more
intrusive.
Take care: When pulling the microphone out, always
pull the body of the microphone and not the cable,
otherwise you may damage the cable.
Fig 4 : PAM U with sensor rod
Magnetic variant:
When you hold the microphone, even the smallest
movement creates loud noises that can interfere
with the measurement. It is thus ideal if you can let
go of the microphone during a measurement. The
magnet screwed in at the front is suited to that. Due
to the high holding force of the magnet an excellent
acoustic coupling is achieved. This is however only
possible when in contact with ferromagnetic
materials, not with plastic, some stainless steels,
etc.
Fig 5 : PAM U with magnet