Agilent Technologies G8610A Operation Manual page 76

5.1.2.2.1 Stabilization Wait Timer
Figure 5-4 shows the Transfer Points screen.
Stabilization Wait
5.1.2.3 High Pressure Test Set-Up Procedure
The High Pressure Test mode locks the system into contraflow, offering maximum protection
to the spectrometer. This is useful in sniffing applications or when evacuating parts that can
contaminate the system.
To configure the High Pressure Test (optional):
1. If sniffing, vent the leak detector and attach a Agilent Power Probe 
(Part Number K9565306) to the test port.
2. Monitor the test port pressure reading on the display and adjust the power probe flow
valve for a test port pressure of 0.5 to 1 Torr (2 Torr maximum). This pressure setting
allows for very rapid system response.
High Pressure Test mode sensitivity is 10
between 1 and 2 Torr using the power probe. 
When High Pressure Test is activated, range stop defaults to 10
High Pressure Test mode sensitivity is 10
between 500mTorr and 2 Torr using the power probe. When High Pressure Test is
activated, range stop defaults to 10
cc/sec is permitted.
1. Select High Pressure Test to enable the High Pressure Test mode. 
When High Pressure Test is selected, Range Stop defaults to 10-7 atm cc/sec. High
Pressure Test sensitivity mode range is 10-4 to 10-8 atm cc/sec.
2. Wait for the leak detector to enter Vent mode.
3. Turn the High Pressure Test feature on to start the test cycle. 
This automatically locks the leak detector into Contra-Flow™ Leak mode, and
auto-ranges through all decades down to the most sensitive Contra-Flow range.
4. Wait for the leak detector to be in Test mode.
5. Turn the High Pressure Test feature on to perform the same function, with the exception
of performing the test cycle start sequence.
76
Agilent Technologies Helium Leak Detector
This appears on the Home screen after a successful startup. This
timer is necessary for the spectrometer stabilization and degassing.
The factory default is 5 minutes. It is highly recommended for those
customers who infrequently use the leak detector or expose the
leak detector to aggressive applications to select the 9 or 15 minute
selection. For example: Select 9 minutes for a leak detector that is
used once a week or select fifteen minutes for a leak detector that is
used once a month or less.
4 8
to 10 atm cc/sec at test port pressures
-4 -8
to 10 atm cc/sec at test port pressures
-7
atm cc/sec, but selecting between 10
-7
atm cc/sec.
-4 -8
to 10 atm