Analytical Industries AII-3000 M Series Portable Oxygen Analyzer - Manual (Page 15)

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Symptom Corrective Action
Reading displayed by LCD
does not change when cali-
bration control is adjusted
Replace sensor
Reading displayed by LCD is
very low
Check sensor connection
Check cable connection
Replace sensor
Alarms continuously acti-
vated
None – Normal operation, confirm set points
Abnormal -
Adjust alarm set points
Remove moisture covering sensor
Check sensor connection
Check cable connection
Check integrity of gas delivery system
Check sensor’s front o-ring seal
Verify calibration gas in not humidified
Verify flow rate is 4-5 liters per minute
Replace sensor
Replace cable
8 Specifications
Accuracy: +2% of FS range under constant conditions
Analysis: 0-100% oxygen
Area Classification: General purpose
Alarms:
A models – none; M models - User adjustable HI 1-100%
and LO 0-99% alarms; 120 second alarm silence; HI
alarm defeat for 100% O
2
measurements
Calibration: Air or 100% oxygen after 8 hours of continuous use.
Compensation: Temperature compensated
Connections: A/M models: 1x16mm thread; HC models: Tubing 1/4”
Controls: Soft touch keypad for ON/OFF and menu function
Dimensions: 3.6 x 5.9 x 1.6”; weight 10 oz. (280 grams)
Display: 3-1/2 digit backlit LCD 2.5” x 1.5”; resolution 0.1% O
2
Flow Sensitivity: None between 0.2 to 10 liters per minute
Humidity: Non-condensing 0-95% RH
LED Indicators: A models - none; M models - upon activation of alarms
Linearity: + 1% under constant conditions
Pressure: Inlet – (A/M) ambient, (HC) regulate; Vent - atmospheric
Power: 2 AA Alkaline batteries; 1,200 hours continuous use
Response Time: 90% of final FS reading in 9 seconds
Sensitivity: < 0.5% of FS range
Sensor: A/M models: AII-11-60 or HC models: AII-11-60-HC
Expected Life: 60 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