GE ApexPro TT, Technical Manual

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7-14 ApexPro™ 2001989-351A
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2. Install new batteries into the transmitter, then wait for the power-up self-tests to
be completed.
3. Press the Verify Leads and Graph buttons simultaneously. The Lead Status and
Change Battery LEDs flash twice to acknowledge the switch was pressed. Then
the Pause Alarm LED starts flashing.
Power-up self-tests
This test verifies completion of the power-up self-tests.
1. Remove any batteries in the transmitter.
2. Install good batteries in the transmitter. The transmitter then performs the
following tests:
„
memory (RAM and EEPROM)
„ frequency synthesizer
„
displays installed options through the LED start-up sequence as described in
Start-up on page 2-8. Use that information to verify the features of your
transmitter.
If the self-tests are successful, the transmitter begins normal operation.
RF power shutdown
This test verifies that the transmitter reduces its output when an all-leads-fail
condition lasts more than 8 seconds.
1. Connect the transmitter to an ECG source.
2. Install new batteries in the transmitter.
3. At a CIC Pro center, verify that the transmitter is sending the ECG source’s
signals properly.
4. Remove the leadwires from the ECG source.
After 6 seconds, a NO TELEM signal displays at the CIC Pro center for the
transmitter being tested.
This test can also be done using the RF monitor to measure the decrease in RF
output under a LEADS FAIL condition.
RF test
The following series of tests verify operation of the transmitter's RF circuitry.
NOTE
The Rohde & Schwarz FSH3 spectrum analyzer is used for the following steps. If
a different spectrum analyzer is being used, the detailed sub-steps may be
different.
Power output
This test measures the power output of the transmitter. (Refer to the RF monitor
operator's manual for setup information.)