6-31 
 
  Calibration pipeline connection (with auxiliary pressure,Canada only): Mount the pressure 
calibration test fixture to the circuit adapter block in place. Use a four-way silicone tube to 
connect the three ports of the pressure calibration test fixture (as shown in Figure 3.2). Connect 
the last connector of the four-way silicone tube to the LOW PRESSURE (+GAS OR FLUID) 
port of VT Plus or the LOW PRESSURE (+) port of VT900. 
 
Figure 3.2 Four ports of the pressure calibration test fixture 
4.    Connect the power system of the anesthesia machine calibration device and select the 
calibration device. 
5.    Select Begin to access the calibration screen shown below. During calibration, you can 
select Cancel to abort the calibration.