Invacare 6LXO2 Service Manual page 65

ALARM TEST
4-f. Within 30 min., the Oxygen Sensor Alarm should activate.
NOTE: 85% Setting is NOT available on units without switch.
4-g. Repeat STEPS 4-a and 4-c with (SW1) set at 85%. (Refer to PROCEDURE 17 - SENSO2
ALARM INDICATOR AND SWITCH in this manual).
4-h. Unit will again climb to an O2 level greater than 85% after 5 minutes and the GREEN
control panel LED will illuminate. (Refer to PROCEDURE 17 - SENSO2 ALARM
INDICATOR AND SWITCH in this manual).
4-i. Repeat STEP 4-e.
4-j. Within 30 min., the Oxygen Sensor Alarm should activate.
4-k. Reset Purity Switch to desired setting per chart (FIGURE 3).
NOTE: If problems arise during test, contact Invacare Technical Service for further assistance.
4-l. Reinstall cabinet. (Refer to PROCEDURE 1 - REMOVING CABINET).
4-m. If any alarm fails to perform to specification, contact Invacare Technical Service.
Your Invacare concentrator is now ready for an additional year. Use the PREVENTATIVE MAINTE-
NANCE RECORD in this manual to record date and number of hours when preventive maintenance was
performed on the concentrator, or any repairs made.
1/8-inch I.D.
Oxygen Sensor Tubing
[Clamp Off Flow
(STEP 4-e and 4-i)].
O2 Purity
Over 85% (+ 2%)
73% (+ 3%) to 85% (+2%)
Below 73% (+ 3%)
LED2
(GREEN)
LED1
[RED
(STEP 4-j)].)
Indicators
Internal Switch
(If Present)
*Set at 73%
GREEN Indicator Light
YELLOW Indicator Light
RED Indicator Light -
Continuous Audible
TM
Alarm Sieve GARD
Compressor Shutdown
* Factory Preset at 73%
FIGURE 3 - OXYGEN SENSOR TEST
65
Control (Bottom) P.C.
Board
Internal Switch
(If Present)
Set at 85%
GREEN Indicator Light
RED Indicator Light -
Continuous Audible
Alarm Sieve GARD TM
Compressor Shutdown
N/A
PROCEDURE 20
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