Welch Allyn Atlas Service Manual page 54

Section 3 - Troubleshooting
3.4 Diagnostic Tests
28 WELCH ALLYN ATLAS MONITOR
With no hose connected to BP port, press <BP START/
CANCEL> button.
Place finger over BP port, blocking flow, causing BP to
detect overpressure and abort.
Should hear Technical alarm and see error message.
If alarm not heard:
If error message not displayed
Press <BP ALARMS Off> button.
Should stop Technical alarm sound, and erase error mes-
sage, and light
LED in <BP ALARMS OFF> button
If alarm not silenced:
If error message not erased
If LED not lit: Replace Display Board hardware
Press <BP ALARMS OFF> button again
Should hear Technical alarm sound, see error message,
LED unlit in <BP ALARMS Off> button
If alarm not heard:
If error message not displayed
If LED not unlit: Replace Display Board hardware
Turn system off and back on to clear state.
Battery tone
System must have been plugged into AC for at least 2
hours.
Disconnect AC power on running system.
Connect BP hose to simulator.
Press <AUTO> to select 1 minute intervals.
Wait for battery to run down. With fully charged battery, after
no less than 50 minutes, should hear single tone, get mes-
sage that system will shut down in 10 minutes.
If alarm tone not heard:
If message not shown:
Should hear tone again in two minutes, and again two
minutes after that.
If alarm tone not heard at two minute intervals:
Five minutes after first message, should start hearing tone
every minute, and get message that 5 minutes remain until
shutdown.
If alarm tone not heard at one minute intervals:
If message not shown:
SERVICE MANUAL 6200-43E REV. A