Title: 8500 Adjustment & Calibration
Document No: 129AC000
Sheet 5 of 12
BLEASE QUALITY DOCUMENT
BQD 083.V2
25/5/94
Press
CTRL+E
on the PC followed by the up cursor key. Page through the diagnostics using the
TAB key & scroll through using the UP/DOWN cursor keys.
Select
Blow off valve ref. Pressure.
Set a flow of 1 LPM, the flow rate can be adjusted using
the Tidal Volume control.
Set main regulator output pressure = 34.0 ± 0.5 PSI while ventilator is in standby mode.
Turn ventilator off and remove gas supply.
Remove pressure gauge and replace plug.
4.7 Calibration
Initial Calibration
Prior to calibrating the unit ensure that the switch, encoder and all the membrane key switches
perform their expected functions.
Note: to run the Blease Medical Test I/O Diagnostics connect the ventilator serial cable between
the recorder output connector on the back panel of the 8500 & a PC. Run Hyper Terminal on the
PC using the stored 8500 HT settings file.
Press
CTRL+E
on the PC followed by the up cursor key. Page through the diagnostics using the
TAB key & scroll through using the UP/DOWN cursor keys.
On page 1 set gas to
that specified by the model number
, use right cursor, set gas convert to
Norm.
Adjust RV2 on the Interface board for –50 mV +/-10 mV at FGZ test pin.
Select Patient airway pressure zero, to cal press Space Bar
Select Drive gas pressure zero, to cal press Space Bar
Select Flow gas pressure zero field
Adjust RV3 on the Interface board for a Flow gas pressure zero adjustment parameter of 600 ±
5, press spacebar to update display. When achieved press Space Bar to save.
Select Patient Flow Pressure Zero.