Insp and exp flow gains can be adjusted, if calibration
is needed. A calibration pump or spirometry tester is
used and readings are observed from the display. If a
deviation exists, gains are adjusted accordingly. Gain
scaling is 1.000, when the factory settings are in effect
(1.050 in modules that contain the Gas Exchange
measurement).
When the Adjust key is pressed, a separate box for
adjusting the value appears. During adjustment
calibration, values are sent to the module. When the
ComWheel is pressed, the values are permanently
stored in EEPROM of the module and the box
disappears.
Zero PVX: Start zeroing the pressure sensors. Effects
Aw Pres Zero and Flow Zero value.
Exp Flow Gain / Insp Flow Gain: Adjust the Flow
sensor gains.
Valves: Switch between MEASUREMENT and ZEROING
VCO2 / VO2 Gain: Adjust the VCO
2
and VO
2
gain.
Y deadspace: Adjust the Y-deadspace.
N2 injection: Select between on (1) and off (0).
Record Data: Record Data prints out the shown service data and board information (id. serial number and
software id.) onto the recorder module.
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