MAINTENANCE: Checkout Procedure
3-6
APEX Telemetry Transmitter
Revision D
401566-166
Checkout Procedure
This procedure describes a series of performance tests for the APEX
Transmitter and optional APEX oximeter.
Required Test
Equipment
The following equipment is required.
•
ECG simulator
•
Fresh alkaline “AA” batteries
•
Low-battery simulator, or low-voltage “AA” batteries (1.86 V
maximum for 2 batteries), or low-voltage variable power supply
•
Digital multimeter
•
RF service monitor (IFR 1200) or equivalent
•
SpO
2
simulator, pn 408610-001 for optional APEX oximeter
Transmitter
Operational Tests
LED Displays
This test verifies LED operation.
1.
Attach the leadwires to an ECG source.
2.
Install batteries into the transmitter, then wait for the powerup
selftests to be completed.
3.
Press the VERIFY LEADS and GRAPH buttons simultaneously. The
LEAD STATUS and CHANGE BATTERY LEDs should flash twice to
acknowledge the switch was pressed. Then the PAUSE ALARM LED
should start flashing.
Powerup Selftests
This test verifies completion of the powerup selftests.
Remove any batteries in the transmitter. Replace the batteries in the
transmitter. The transmitter then performs the following tests :
1.
memory (RAM and EEPROM), and
2.
frequency synthesizer
If the selftests are successful, the transmitter begins normal operation.
Failure of any of the selftests causes all LEDs to flash at 1 second
intervals.
