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8 Operating the PILS
8.1 PILS Operating Procedures
We recommend a 15 minute flushing period before each run cycle to allow the instru-
ment to come up to temperature and also to allow the steam generation and liquid flow
systems to stabilize. A particle filter may be installed on the PILS inlet during the flush-
ing period and provides a convenient time to obtain zero air background samples from
the PILS.
Follow the steps below to operate the PILS:
1. Ensure the MilliQ+LiF (or LiBr) and Pure H2O bottles are full of their respective
liquids.
2. EMPTY THE DRAIN BOTTLE AND RE-ATTACH IT.
3. Turn on the PILS using the POWER SWITCH on the rear panel.
4. The Steam generator and Peristaltic pump will automatically run when the 'PWR'
switch is ON.
5. Turn on the AIR PUMP to initiate the air sample flow.
6. Run the program "BMI PILS 4001 v1.0.exe" (described below) to record tem-
perature data to the PC. Initialize the COM port by selecting 'START', enter a
unique Run Cycle descriptor (numeric only) if desired, and select 'START' again
to begin saving temperature data to a file.
7. Visually monitor the steam tip temperature and modify the steam heater con-
troller temperature setpoint upward if the tip temperature drops below 97 C.
If the tip temperature is higher than 100 C, reduce the steam heater controller
temperature setpoint. Change the steam heater temperature setpoint by 5 C
at a time and monitor the change in tip temperature for 10 minutes before
changing the heater setpoint further.
8. The software is not required to operate the PILS - it only creates a convenient
record of temperatures during a run cycle.
83-00009-01A
PILS 4001-115V and 4001-230V
8
Operating the PILS
Page 49 of 74
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