Testing The Fan - Tait TB8100 User Manual

Testing the Transmitter
TB8100 Service Kit User's Manual
4. Check that the PA LED is on.
After five seconds, the test ends and the LED's connection with the PA is
restored.

Testing the Fan

You can ask the base station to turn the PA fan on and off. This tests the fan
and its control circuitry.
Test the fan after fixing a fan problem or fitting a new fan. When you fit a fan,
use this test to verify that the fan is correctly connected, so that the PA (and not
the PMU) activates it.
Note: The base station can detect the motion of 3-wire fans and will
raise an alarm if the fan does not operate.
To test the fan
1. Select Diagnose > Power Amplifier > Control Tests.
2. Click Start Test. This uncouples the fan from the base station's control but
leaves it in its current state.
3. Click Toggle Fan. If the fan was off, this should turn it on.
4. Check that the fan is operating. A 5-second timer counts down. When it
expires, the test ends and control of the fan reverts to the base station.
The Transmission Tests form (Diagnose > Power Amplifier > Transmission
Tests) lets you test the ability of the PA to transmit. Use it, for example, when
setting up and commissioning a system. You can:
transmit using the current channel configuration
specify any suitable frequency, and configure the output power and channel
bandwidth.
transmit carrier only or carrier modulated by your choice of modulation
frequency and deviation level.
Tip: Alternatively, test the transmitter by pressing the Carrier button
on the control panel.
To ensure that you cannot inadvertently leave the base station transmitting, the
test automatically stops after 60 seconds.
Note: You can carry out this test together with other tests, for
example to see the effect of transmission on battery voltage when
the mains supply is off.
Power Amplifier Tests 161