Service manual

IQmark Digital Spirometer Operation Manual
28
Clicking on the handle will display the following calibration screen.
Calibration Screen
Check to see if Sensor: Ready is displayed in the upper right hand corner of the graph
window. If you are using a Spirometer with a COM connector (DB9) with a model/serial
number beginning with 51xxxx, you must place the DPM in the handle to turn it on.
Please note that the handle will remain on whenever the DPM is inserted. Be sure to
remove the DPM after calibration or testing to conserve the life of your batteries.
Barometric Pressure
The Pressure must be set prior to the first time you calibrate the system. It must be
changed only if you change the location of the instrument and the altitude changes. Click
the Settings button to open Spirometry Settings. Select the Calibration tab and enter
the Barometric Pressure in the Default Barometric Pressure box. If you do not know the
barometric pressure, you can select Calculate Barometric Pressure From Altitude and
enter your altitude. The software will automatically calculate and store the usual
barometric pressure for that altitude.
 NOTE: The proper Barometric Pressure or altitude MUST be entered
to assure a proper calibration.
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