LTV 1150 - Power Checkout

p/n 18603-001, Rev. C LTV
®
1200/1150 Ventilator Service Manual Page 9-11
Power Checkout
Tools required:
• Internal Battery Test Cable
70
, P/N 11472
• External Battery Test Cable, P/N 11474
• Variable 10 Amp DC voltage source
NOTE
When the Extended Features PRESETS, PTNT QUERY menu option is set to QUERY ON and the
ventilator is powered up in normal ventilation mode, ventilation and alarm activation are suspended
and the message SAME PATIENT is displayed after completing POST tests.
Press the Select button to enable the suspended alarms and begin ventilation with the settings in
use during the last power cycle, or set the PTNT QUERY menu option to QUERY OFF.
1) Perform a Battery Level test. With the ventilator OFF, remove external power and replace the
internal battery with the variable DC voltage source, using the internal battery test cable.
Ventilator Settings and Procedure Performance Requirement
A) Replace battery with the variable DC
voltage source set between 14.8V
and 15.0V and turn the ventilator on.
Silence the Power Lost alarm.
• Normal operation.
• Battery level LED is green.
• Only POWER LOST alarm activates.
B) Slowly reduce voltage until LTV
®
Battery Level LED changes to
amber.
• Normal operation.
• DC voltage source is 11.9V ± 2%
• BAT LOW alarm
• Audible alarm sounds.
C) Slowly reduce voltage until the LTV
®
Battery Level LED changes to red.
• Normal operation.
• DC voltage source is 11.5V ± 2%
• BAT EMPTY alarm.
• Audible alarm sounds.
D) Slowly reduce voltage until the LTV
®
Battery Level LED extinguishes.
• DC voltage source is 10.0V ± 2%
• Vent Inop LED illuminated.
• Audible alarm sounds.
E) Remove DC voltage source and test
cable. Reconnect the internal
battery.
2) Perform a Battery Duration/Battery Charge test
71
.
A) Remove external power and operate
unit from its internal battery until it
shuts down. Confirm Vent Inop LED
is lit and audible alarm is sounding.
Connect external power, clear
alarms and allow the unit to operate
normally and charge the battery for a
minimum of 8 hours.
• BAT LOW, BAT EMPTY, and Vent Inop
alarms sound
• When the unit shuts down confirm Vent Inop
LED is lit and Vent Inop alarm sounds
70
The Internal Battery Test Cable and the External Battery Test Cable are available separately or as part of the
Maintenance Calibration Kit, P/N 11566.
71
It is normal for a RESET alarm to occur at the conclusion of POST after performing the Watchdog test, Battery
Duration test, or any other test that which causes the ventilator to go inoperative (other than pressing and
holding the On/Standby button). Press the Silence/Reset button twice to clear the alarm.