Aerial XABH-9000 User manual

USERS MANUAL
Aircrew Flight Equipment
Component/System Tester
XABH-9000
HANDHELD ALSE TESTER
Care and Maintenance
TheThe XABH-9000 is intended to be
stored and operated within the
normal conditions found in a life
support equipment work room.
The system should not be stored
outdoors or in an aircraft or
helicopter. It can be operated
outdoorsoutdoors when desired, but
should not be directly exposed to
rain or snow. Check batteries at
least every 30 days to ensure that
no leakage has occurred from the
batteries installed. This would
cause damage to the battery
compacompartment and battery
terminals. Keep tester stored in
the case provided to ensure the
best protection from damage.
Calibration of the system is not
required.
Operating Modes
The Tester has 3 Modes for Operation:
Normal Mode
InIn normal mode, the tester will analyze the microphone and speaker to provide an
indication what the resistance of those items are. This gives the operator an idea of
whether or not the microphone or speaker are within the operational limits of the
particular devices. This mode does not support testing of the systems through the
device microphone (to provide audible indication of the tested speakers operating) or
speaker (to provide audible indication of the tested microphone operating).
Mic Test
InIn the Mic (Microphone) Test position the tester will activate the tester speaker and allow
the user to see the resistance of the microphone as well use of the microphone
(speaking into it) to ensure that the microphone is operating correctly. This mode will
power microphones (i.e. electret microphones) for testing as well.
SPKR Test
InIn the Spkr (Speaker) Test position the tester will activate the tester microphone and
allow the user to see the resistance of the speaker as well use of the speaker
(transmitting what is broadcast by the tester microphone) to ensure that the speaker is
operating correctly. This mode will test helmet, headset, and even earphone speakers.

INDICATES
No errors detected
Microphone is disconnected, bad microphone, disconnected cable, or bad connector wiring.
Microphone Resistance is less than 2 Ohms, likely shorted cable or connector.
[PRESET ONLY] Not the expected type of microphone based on the preset.
[PRESET ONLY] Dynamic microphone ohms deviates more than +/- 30% from expected
[PRESET ON[PRESET ONLY] Electret microphone current deviates more than +/- 70% from expected
Cannot Determine Microphone Type
INDICATES
Speaker is disconnected, likely disconnected cable or connector wiring.
Speaker resistance is less than 2 ohms, likely shorted cable or connector.
[PRESET ONLY] Speaker resistance deviates more than +/-20% from expected
[PRESET ONLY] Speaker resistance is twice the expected value, likely one speaker bad or disconnected.
Both speaker and microphone read less than 2 ohms, likely bad cable or connectoBoth speaker and microphone read less than 2 ohms, likely bad cable or connector.
One line shorted, one line open, likely bad cable or connector.
INDICATES
[PRESET ONLY] Some other error involving both the microphone and speakers.
Microphone
DISPLAY READING
OK
Mic Open
Mic Shortened
Mic Wrong
Mic Ohms BadMic Ohms Bad
Mic Current Bad
Mic Unknown
Speaker
DISPLAY READING
Spkr Open
Spkr Shorted
Spkr Ohms BadSpkr Ohms Bad
One Spkr Bad
Lines Shorted
Lines Bad
Both Microphone and Speaker
DISPLAY READING
Mic & Spkr Bad
Presets
ThereThere are three preset positions (PRESET A, PRESET B, PRESET C) on the
tester that allows the user to customize the test parameters for their own
equipment. The Preset acts the same way as the normal mode in that it will
only give you a readout of the resistance of the connected system, but
adds a “GOOD” or “BAD” indication based on the system’s preset
parameters:
1. To preset a system, ensure that the system is within
the proper standards for the microphone and/or the proper standards for the microphone and/or
speaker.
2. Plug the system into the tester and move the control
knob to the desired Preset position (either A, B, or C).
3. Confirm the readings for the connected system are
still considered proper readings for a “Good” system.
4. Press the Preset button located at the top of the
system to set that preset to test similar systems as the system to set that preset to test similar systems as the
system connected to the tester.
5. The display will give you an indication that the Preset
has been set and the Microphone and Speaker
readouts will indicate that they are both “GOOD.”