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The microphone
The microphone is a solid-dielectric capacitance microphone, with a built-in preamplifier.
This type of microphone requires a polarizing voltage (200 volts), which is generated by a
DC/DC converter in the detector. This voltage is present at the microphone socket. To remove
the microphone from the detector, turn off the detector and unscrew the grooved ring at the
base of the microphone and gently pull the microphone off the socket. When attaching the
microphone again, make sure the ring is properly tightened. Please note that only the grooved
ring may be turned - the microphone housing must not be turned! If the microphone
membrane has been worn or punctured, it may be necessary to replace it. The microphone
capsule (the upper part of the microphone with the membrane) is replaceable and is available
as a spare part. To remove the microphone capsule, loosen the lock screw (see figure below)
slightly with a suitable screwdriver and pull the microphone capsule from the microphone
housing. Do not unscrew any other screws on the microphone – this may cause damage to the
microphone and/or the microphone capsule!
An extension cable for the microphone is available from Pettersson Elektronik.
Caution. The microphone membrane is easy to damage. Touching the microphone
membrane should always be avoided! If the microphone membrane has been
punctured, electrical discharges may occur. Although the energy stored in the
microphone capsule is very limited, as any electronic equipment the detector
should not be used in areas with explosive gas.
The serial input
The serial input is located beneath the CF card slot and is used to connect a GPS receiver to
the D1000X. This should be done only with a cable supplied by Pettersson Elektronik or a
cable manufactured according to instructions from Pettersson Elektronik.
The serial input is also used for certain service operations by Pettersson Elektronik or another
approved service center.
Microphone capsule
lock screw
!
