2
check
®
Ultrasonic Oxygen Indicator
FULL "TWO STEP" CALIBRATION PROCEDURE
The following procedure may be used to calibrate the PRO
2
check
®
indicator
to both room air and U.S.P. oxygen (> 99.0%):
1. Clear analyzer gas chamber by inhaling through inlet. Use clean tubing and
discard after use.
2. With analyzer off, Push and Hold Calibration/Pure O
2
button while turning on power.
3. When three dashed lines appear (---) release Calibration/Pure O
2
button. Display
should read Cal Air (Cal Air).
NOTE: Do not exhale breath into unit. Moisture will affect calibration; a slight suction
can be used to evacuate the sampling chamber.
4. Press and release Calibration/Pure O
2
button. You will see three dashed lines (---)
scroll in circles. Then the scrolling will stop and you will see CAL O
2
5. Connect to O
2
Cylinder at 2 LPM, then press and release Calibration/Pure O
2
button.
6. You will see three dashed lines (---) scroll in circles. Then the scrolling will stop and
then you will see Cal End and read 91.7 Note: Reading may range from 91 to 92.
This is not a concern.
7. Push the Calibration/Pure O
2
button. You should get a reading between 99% and 101%.
8. Unit is calibrated and ready for use.
9. If step 7 above is not achieved, try one more time. If 99% to 101% is still not achieved,
call Salter Labs
®
Customer Service to send unit back for service by a Technician at
Salter Labs
®
Service Dept.
NOTE: If unit displays "CAL ERR" during verification or calibration
procedures, check to ensure that you are using U.S.P. oxygen (>
99.0%) and
that the flow is turned on to at least 2 LPM, then repeat procedure.
NOTE: If unit displays "---" during verification or calibration procedures, release
the "pure O2/calibrate” button or the unit will shut off automatically.
If any problems are encountered during the calibration sequences,
contact Salter Labs at 1-800-421-0024 or 1-661-854-3166.
7
To Next Page
Loading...
Need help?
General