6700 Portable Sampler User Manual - Isco

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Note
ONCE ENABLED,
STAY ENABLED?
YES NO
Repeatable enable is called
“sampler latching” in flow
meters, flow loggers, FLOW-
LINK, and PALs. Latching a
sampler produces the same
results as selecting YES; the
difference is that the external
instrument controls the latching.
SAMPLE AT ENABLE?
YES NO
START SAMPLING
AFTER A
___ MINUTE DELAY
(1-999)
RESET SAMPLE
INTERVAL AT ENABLE?
YES NO
CONTINUE COUNTDOWN
WHILE DISABLED?
YES NO
6700 SAMPLERS
SAMPLER ENABLE REPSONSES
In addition to programming enable conditions, extended programming
lets you control the sampler’s response to its enable
state. You can:
Stay enabled after the first enable.
Set up a repeatable enable.
Take a sample at enable or disable.
Delay the start of sampling after the enable.
Reset the sampling interval countdown each time the sampler
is enabled.
Control the sampling interval countdown while disabled.
Enable Part B of a two-part program when Part A is done.
Once Enabled Stay Enabled
For certain monitoring programs, you may want the sampler to
continue to sample, even though the conditions that enabled the
sampler no longer exist. When you use the ONCE ENABLED,
STAY ENABLED feature, after becoming enabled the sampler
takes samples until it reaches the end of its program.
Repeatable Enable
After enabling the sampler, the enabling instrument (or instruments)
continues to monitor the conditions and disables the sampler
when the conditions are no longer satisfied. If re-enabled,
the sampler resumes the sampling program.
Sample at Enable or Disable
Youhavetheoptionofdirectingthesamplertotakeasampleas
soon as it receives the enable and/or disable signal. If you program
the sampler to stay enabled and choose to take a sample at enable,
the sample interval will be reset at the enable time. Samples at
disabledonotaffectthesampleintervals.Standardprogramsdo
not take a sample at the enable time.
Delay To Start Of Sampling
If you have selected ONCE ENABLED STAY ENABLED and
have chosen to not sample at the enable, you have the opportunity
to suspend the start of sampling. This option is useful for
storm programs that require a flow-paced sample taken after the
initial grab sample.
Resetting the Sample Interval at Enable
You may want the pacing countdown to start over each time the
sampler becomes enabled. To accomplish this simply select YES
at screen 20. The next sample event will occur at the end of a full
interval. Furthermore, if the sampler is enabled several times
during the program, it resets the countdown each time.
Use the reset-interval feature carefully. For example, avoid resetting
the interval when you sample with uniform-time pacing and
want to take samples at specific times.
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