4.3.7 “Bed Heater Failure” Alarm
This alarm activates only when the canopy is at the bottom position.
Cause or Circumstances
Failure
Action
The software has turned on
the incubator heater but it is
either not turning on or the
current sense circuit is not
detecting that it is on.
The bed safety thermostat is
open (possibly because the
unit was shut down when the
heater was hot).
If the unit was shut off when the heater was hot, allow
the fan to run for several minutes to cool to below 40
degrees C then power down and back up. If the failure
still persists, continue .
Defective incubator heater,
thermostat, or wire harness.
Check the resistance of the incubator heater. Refer
to the Tips section (4.6.2). If defective, remove the
chassis cover and measure resistance at thermostat
and heaters to determine if heater, thermostat, or wire
harness is defective.
Defective incubator solid
state relay (SSR).
In service mode, check the voltage across the control
line of the incubator heater SSR. This control signal
varies between 0 VDC and about 12 VDC.
If voltage is present replace SSR. The two SSRs are
identical and can be swapped for troubleshooting. If no
voltage, continue.
Defective 50 pin ribbon cable
between the relay and control
board.
Check for continuity on pins 36, 38, 39, and 40 (control
signals). If defective, replace cable. If OK, continue.
Defective relay board.
Replace the relay board.
4.3.8 “Bed Up/Down Pedal Failure” Alarm
Cause or Circumstances
Failure
Action
One of the bed up/down
pedal switches is shorted.
Defective bed up/down pedal
switch or harness.
Check the switches on the service screen to determine
which switch is shorted or open. Refer to the Tips
section (4.6.9). Raise the lower shroud and check
continuity at the switch connectors to determine if a
switch is defective or the wiring has a short.
Defective relay board.
Defective relay board.
If the alarm persists, replace the relay board.
4.3.9 “Bed Up/Down Pedal Switches Disabled” Alarm
Cause or Circumstances
Failure
Action
Bed up/down pedal switches
have been disabled in nurse
setup screen or service
screen and pedal is pressed.
None
When pedal is released, the alarm deactivates.
NOTE:
If the bed up/down pedal switches are disabled
in the service screen and you wish to use them, you can
reactivate them only in the service screen.
36
6600-0343-000 104
© 2001 by Datex-Ohmeda, Inc.. All rights reserved.
Chapter 4: Troubleshooting
Содержание Giraffe OmniBed
Страница 10: ...x 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Table of Contents ...
Страница 28: ...xxviii 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved About this Manual ...
Страница 38: ...10 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 1 Functional Description ...
Страница 48: ...20 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 2 Service Checkout ...
Страница 56: ...28 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 3 Calibration and Maintenance ...
Страница 260: ...232 6600 0343 000 104 2001 by Datex Ohmeda Inc All rights reserved Chapter 6 Illustrated Parts ...