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Bird Sentry™ Blender
Chapter 2:
Operating Procedures
Before placing the Bird Sentry blender into clinical use, the performance check described in Chapter 3
should be performed. Refer to Appendix C for Setup and Installation.
Monitoring
To begin monitoring, press the ON/OFF button located on the front panel (if necessary). Monitoring will
begin immediately.
Should oxygen level exceed either the HIGH or LOW alarm set points, the red alarm indicator on the
front panel will illuminate indicating either a high or low concentration reading, and an oxygen level
returns to within limits or the limits are adjusted.
To conclude monitoring, press the ON/OFF button located on the front panel.
This will place the blender in a standby mode in which the display and alarm circuits are not functional,
but the gas-blender supply hoses will continue to supply mixed gas if the inlet hoses have not been
disconnected.
Alarm Setting Procedure
Low Alarm Setting
To adjust the low alarm setting:
1.
Press the LOCK key to unlock the keypad.
2.
Press the LOW SET key. The LOW icon will start to flash.
3.
Use the UP and DOWN arrow keys to set the low alarm to the desired value. Pressing the arrow
keys changes the value in 1% increments. If the keys are held down for more than 1 second, the
display will scroll at a rate of 4% per second.
Note:
If 10 seconds elapse between key actuations, the system will store the latest low alarm
value and will revert to normal operation. If this occurs inadvertently, simply repeat the
alarm-setting procedure.
The low alarm value cannot be set lower than 18%, nor can it be set closer than 1% from the
high alarm value. For example, if the high alarm is set at 25%, the system will not accept a low
alarm setting greater than 24%.
4.
When the low alarm value is set, press the LOW SET or LOCK key again to accept the low alarm
setting and return to normal operation.
Note:
To automatically set the low alarm to 18% without scrolling the display, hold the LOW SET
key down and press the arrow key when the LOW icon is flashing.
L1383 Rev. D
7
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