Salter Labs PRO2 Check - Page 8

PRO
2
check
®
Ultrasonic Oxygen Indicator
Trouble Shooting Checklist (Continued)
Complaint Probable Cause
Suggested
Corrective Action
Display shows "err"
during calibration
Calibration was
performed incorrectly
or wrong calibration
gas was used.
Ensure U.S.P. oxygen
(> 99.0%) is being
used and re-perform
procedure according to
directions in the
Operation Manual.
Display shows "err"
during use
Unit has made a reading
outside normal ranges.
Check calibration.
Make sure gas being
measured is from
oxygen concentrator.
"LO BATT"
appears in display
screen when unit is
turned on
Battery is low. Change battery.
Display shows "err"
or a reading other
than 100% ± 2% after
full calibration
Unit may have been
used to check a
concentrator with a
humidifier bottle in line
or water has gotten
inside of unit.
Call Salter Labs'
Customer Service
Department at
(800) 235-4203 for
authorization to return
unit for repair.
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