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has not been adjusted to reflect the higher rate. If this occurs, the
sampler will continue the first bottle group until all samples
have been taken. You can adjust the pulse interval by
• Reprogramming the flow meter to change the number of
flow pulses sent to the sampler by the flow meter.
• Reprogramming the sampler to change the flow pulse
interval in the flow-pacing segment of the STORM
routine.
• Reprogramming both the flow meter and the sampler.
STORM Key Times – The third section, STORM Key Times,
contains the displays used to:
• Enter suction-head measurements
• Enable the calibration routine
• Enter a start time for the storm routine
The input displays of the STORM program sequence vary
according to configure option settings. The first two displays
("SUCTION HEAD OF -- FEET" and "CALIBRATE SAMPLE
VOLUME") appear if the sampler is configured to add them to
the storm program sequence. Entries in the Liquid Detector con-
figure option and the Calibrate Sampler configure option add or
exclude these displays from the sequence. Example Storm Sam-
pling does not include these displays.
To enter a specific start time for the routine, select "YES" in
Display #90 (illustrated in Step 17 of Example Storm Sampling).
The sampler will prompt you to enter a start time with Display
#93 (step 18). If you select "NO," the start time will be delayed by
the amount set in the Start Time Delay configure option.
After you've made these entries, the sampler will present the
"PROGRAMMING SEQUENCE COMPLETE" message and
return to standby.
Programmed start times, start time delays, and delays to
group sample – Samplers programmed for storm sampling
respond to start-time delays and programmed start times in the
same way as samplers programmed for any other basic or
extended mode routines.
The sampler will delay the storm routine until the start time
entered in the third segment of the STORM sequence. (See
Display #93.) If the sampler is enabled by the flow meter at the
start time, the sampler will begin to time the delay to the first
bottle group. If the sampler is disabled by the flow meter at the
start time, the sampler will suspend the routine until it becomes
enabled. Once the sampler is enabled by the flow meter, the
sampler will begin the delay to first timed sample event and con-
tinue the STORM routine.
STORM sampling routine has four delay periods that vary
slightly with the programming entries. Every STORM routine
will have a delay to start time and delay to first group sample.
3700 Portable Samplers
Section 3 Programming Guidelines
3-77
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