Analytical Industries Palm O2 IW Oxygen Analyzer User Manual
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Procedure
Calibrate: (a) with a known source of dry air, 
21% or 100% oxygen before using each day 
or after 8 hours of continuous use; (b) when 
the temperature or pressure of the operating 
environment changes; (c) if the oxygen sensor has 
been disconnected and reconnected; (d) after the 
battery or oxygen sensor has been replaced. 
 
1. Expose the sensor to the calibration gas (refer 
to preceding section) for approximately 30 sec-
onds to allow the sensor to stabilize. 
2. Continue exposing the sensor to the calibration
gas until the calibration routine is complete.
3. Press and hold the CAL pushbutton for three (3)
seconds to initiate the calibration routine.
4. The LCD displays CAL, top right, during the
calibration routine which takes 15-20 seconds.
5. The software determines from the sensor’s
signal output whether the device is being cali-
brated with 100% or 21% oxygen. 
6. If the calibration is successful, the LCD will
display, middle and bottom right, the oxygen 
value of the calibration gas and returns to the 
SAMPLING mode. 
7. Remove the calibration gas and begin sampling. 
 
 
 
 
8
Calibration Fails 
If the calibration fails, the LCD will display ERR as 
illustrated. 
 
An unsuccessful calibration can be caused by 
several problems with the sensor, calibration 
gas or electronics. Dropping the device will 
damage the sensor and electronics. 
 
Do not proceed until corrective action is 
taken and the device is calibrated success-
fully. 
 
 
If after three (3) unsuccessful attempts to 
calibrate: review section 7 for possible causes and corrective action or 
contact Advanced Instruments Inc. at 909-392-6900. 
 
 
4.5 Mounting 
The device can be mounted to a 1” diameter pole or a book shelf using the 
optional Dovetail Mounting Kit (P/N A-3675-1) and Dovetail Female Clamp Pole/
Shelf (P/N HRWR-1075) as illustrated below. 
The dovetail male bracket, top left and middle, is secured to the rear of the 
enclosure with one (1) screw and held in place by registration holes molded 
into the enclosure. 
 
The 1” diameter dovetail female, top right, clamp pole/shelf is an optional ac-
cessory commonly found in medical applications. 
 
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