18
19
7 Troubleshooting
If the recommended corrective action does not resolve the problem return the
device to the factory for service.
Symptom Corrective Action
Device appears to be physi-
cally damaged
Turn device ON – if it successful passes
calibration – proceed
No display when analyzer is
turned ON
Replace batteries
Check battery polarity
Check and/or clean battery contacts
‘LO’ displayed when analyzer is
turned ON or in use.
Replace battery and calibrate device
‘ERR’ displayed when analyzer
fails calibration
Replace oxygen sensor
No response to keypad Replace battery
Cannot turn device OFF Calibration routine in process – wait until
completed
Reading displayed by LCD
does not change when oxygen
level changes
Replace sensor
Reading does not stabilize or
fluctuates erratically
Relocate analyzer away source of RF or
electromagnetic radiation emissions.
Wait 5 minutes and repeat calibration
Replace sensor, repeat calibration
After calibration in 100% dry
oxygen, analyzer reading drifts
more than 2% over 8 hours
Check primary oxygen delivery device
Replace sensor that is nearing the end of
its useful life
8 Specifications
Accuracy: < 2% of FS range under constant conditions
Analysis: 0-100% oxygen
Alarms: Analyzer none
Calibration: Certified dry 100% oxygen or air after 8 hrs of use
Compensation: Temperature
Connections: 1x16mm thread or o-ring diverter
Controls: Soft touch keypad for ON/OFF and CAL
Dimensions: 2.72” x 4.1” x 1.35”; weight 7 oz. (196 grams)
Display: 3 digit LCD 1.1” x .625”; resolution 0.1% O
2
Flow Sensitivity: None between 0.2 to 10 liters per minute
Humidity: Non-condensing 0-95% RH
Linearity: +
1% under constant conditions
Pressure: Inlet – ambient or regulated; vent - atmospheric
Power:
(2) 1.5V AA alkaline batteries; 13,000 hrs of use
Response Time: 90% of final FS reading in 10 seconds
Sensitivity: < 0.5% of FS range
Sensor: AII-11-75-PO2D; optional remote sensor AII-11-75-PO2RD
Sensor Life: 32 months in air at 25ºC and 1 atmosphere
Storage Temp.: -20º to 60ºC (-4ºF to 140ºF) on intermittent basis
Temp. Range: 5º to 45ºC (41ºF to 113ºF)
Warm-up Time: None
Warranty: 12 months analyzer; 12 months sensor (any application)
(32 pages)
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