Frequently Asked Questions - Salter Labs PRO2 check Elite Operation Manual

FREQUENTLY ASKED QUESTIONS

Thank you for purchasing the PRO 2 check Elite® Multifunction Concentra-
tor Indicator. It will give you years of trouble-free operation. The following are
some of the frequently asked questions about the operation of this device.
How often should I calibrate my PRO2 check Elite® unit?
As long as you can verify (via the Pure Oxygen Verification Procedure) that
the unit is holding calibration against a USP oxygen (> 99.0%) source, the unit
does not need calibration.
How do I know that my PRO2 check Elite® device is accurately measuring
concentrations?
To verify, simply connect the multifunctional unit to a source of either com-
pressed gas or liquid USP oxygen (> 99.0%) at 2 LPM. Then turn on the device
and hold down the "pure O2/calibrate" button. As long as the display reads
between 99% and 101%, the unit is properly calibrated.
My accreditation organization as well as our internal policies require period- ic
calibration of this type of equipment. Can I calibrate the PRO2 check Elite®
device to comply with these requirements?
Yes, if accreditation organizations or internal policies and procedures require
routine calibration, instructions on calibrating the various functions of the de-
vice are found on pages 7-9 of this manual.
Can we also calibrate the pressure and flow modes?
Yes, instructions on calibrating (zeroing) the pressure and flow measurement
functions of this device are found on page 9 of this manual.
Does the unit have to be turned off before verifying or calibrating?
Yes. The unit must be turned off and evacuated to room air before you begin
the oxygen verification or calibration procedures. This is not necessary for flow
or pressure calibration (zeroing).
13