Manning YB8 - Flow Mode- Totalizing Analog Multiple Bottle Composite with Bottle Groups

PROGRAMMING SECTION MODEL YB8
April 1999/Manning Environmental Inc.
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*13 Flow Mode - Totalizing Analog Multiple Bottle Composite
with Bottle Groups
The *13 mode functions in the same way as the *12 mode, except it integrates and totalizes an analog signal
(4-20mA) from an external device that represents flow rate. Since the sampler
does not ask for a definition of the volume unit of the flow rate, ANY can be used, i.e. cubic feet, liters or
gallons. F or mo re details on how the analog controller works, refer to the analog programming section o n
page 2-12. *13 is useful when it is not possible to collect samples on a regular basis, such as on a weekend or
at a remote site. In this mode the user selects the number of bottle groups, how long each group is active
(receives samples), the maximum number of samples a group will t ake, and a time o verride. NOTE: T he
number of bottle groups is entered, not the number of bottles in a group. After pushing <START>, the
sampler immediately begins counting down the Delay Start. O nce t he Delay Start has finished counting down,
the sampler will begin reading the analog signal and be ready to act o n an event (totalized volume or t ime
override). T he finish of t he Delay Start will also start t he t ime override counting down. I f t he sampler
receives an event, the unit will initiate t he sampling sequence. T here are several simultaneous actions:
1) The spout will advance t o the first bottle in t he active bottle group and begin the sampling process.
2) The active bottle group time will begin counting down. NOTE: M ake sure t he active time period allows
enough time to collect all t he samples required. If the active time period elapses before the Samples per Bottle
has been satisfied, the unit will finish t he sequence in progress and t hen mo ve to the next bottle group without
completing the current bottle group.
3) The t ime o verride will reset and begin counting down again. The override time causes the unit t o take
samples if t he Flow Trigger fails t o occur. T he override t ime starts counting down immediately after pressing
<START>. NOTE: The override time must be longer than the time it takes for the sampling sequence to
complete. I f it is not, the override time will elapse while the unit is in a sampling sequence causing another
sequence t o begin immediately after finishing t he previous o ne.
The first bottle group will be active and receive all samples for its active time period, up to the maximum
number of samples. If the maximum is reached, the sampler will still wait out t he rest of the active time before
switching to the next bottle group. After the initiation of a sampling sequence, t he sampler will advance t o the
first bottle in t he group. T he unit will place 1 sample in this bottle, and then advance to the next bottle in the
group and deposit a sample. T his will continue until all t he bottles in t he group have 1 sample placed in them
(see NOTE o n #2 above). T he sampler will then wait for another event (totalized volume or t ime override
(see NOTE o n #3 above)). When t he event o ccurs the unit will place another sample in each bottle of the
active group. T his will continue, as events t ake place, until the specified number of Samples per Bottle is
reached and all Bottle Groups have been utilized. See page 2-39 for a full explanation of how bottle groups
are divided and what o rder the spout fills the bottles.
NOTE: In order for the sampler to correctly scale the analog signal being output from the external device, the
parameters (in t his case maximum and minimum flo w) s et in t he sampler and t he external device must be the
same. This is to ensure that if the external device is reading 100,000 gallons and outputting a 4mA signal, the
sampler will also know t hat 100,000 gallons is equal to 4mA. If the parameters do not correspond, there is a