6600-NG User’s Manual
125-9110A
Page 20
[7]
Pt Mode
The Pt output can be in one of three modes: Measure, Leak or Control. The unit always powers-up in
Measure mode. The user must change to Control mode to move to a specific target. The user changes to
Leak mode (from Control mode) when performing a Leak check. After the Leak check is completed, the
unit automatically goes back into Control mode. So, during the entire operation of the tester, the user
should only stay between Control and Leak modes. The user should typically never have to go into
Measure mode.
How to change modes is described in Section 3.6 .
[8]
Ps1 units
The selected Ps1 units are displayed here. There are 7 different Ps1 units available.
1. Feet
3. inHg
5. psi
7. kpa
2. Meters
4. mbar
6. mmHg
Selecting the desired Ps1 units is described in Section 3.3.
[9]
Ps1 Actual value
The Actual value (actual pressure converted to selected units) being measured or controlled at the Ps1
output is displayed here in the selected Ps1 units. The displayed resolution of this value depends on the
selected units and is shown in the table below. This Actual value is updated every 250 msec.
Ps1 units
Displayed
Resolution
Feet
1
Meters
0.1
inHg
0.0001
mbar
0.01
psi
0.001
mmHg
0.01
kpa
0.001
[10]
Ps1 Target value
The target value that the user desires to achieve on the Ps1 output is displayed here. When the Ps1
output is in Control mode, the 6600-NG will automatically adjust the Ps1 Actual value to match the Ps1
Target value. The resolution of the Ps1 target value is the same as the resolution of the Ps1 Actual value.
How the user can change the Ps1 Target value is described in Section 3.4.