User's Manual

Multigas
22-21
Pump Calibration
This function is used by service personnel to adjust the pump flow rate. Refer to
the 90518 Multigas Analyzer Service Manual P/N 070-0643-xx for details.
Gas Span Calibration
A gas span calibration is recommended whenever gas values appear to be too
low or too high. Always perform a leak test first to verify that the suspected values
are not the result of a leak (poor connection, cracked water trap, etc.).
The gas calibration (SPAN) procedure is used to recalibrate the gas channels for
CO
2
, N
2
O, and anesthetic agents. This procedure should be done every
30-90 days. Equipment required for this calibration includes a gas mixture for the
calibration, calibration adapter kit, gas pressure regulator, and flow meter. This
equipment can be purchased from Spacelabs Medical Supplies Products.
Refer to the 90518 Multigas Analyzer Service Manual (P/N 070-0643-xx) for
details on calibrating the analyzer.
WARNING:
• Performing a gas span calibration without the calibrated
gas mixture connected adversely affects the accuracy of
the analyzer.
• Gas span calibrations must be performed by trained
personnel only.
!
• The waveform display and the numeric values may disappear
during calibration.