PROGRAMMING SECTION MODEL YB8
April 1999/Manning Environmental Inc.
3DJH%
*06 Analog Level Mode
The *06 mode expands the capability o f t he sampler by allowing it t o collect samples based o n changing level
parameters. The sampler is used in conjunction with an external device which outputs an analog signal (4-
20mA) representing level (for more details on how the analog controller works, refer to the analog
programming section o n page 2-12). T he sampler does not ask for a definition o f t his level unit, so ANY can
be used, i.e. feet, meters, or inches. Once the unit is programmed and started, the sampler integrates the
analog signal once per minute to internally track the water level. When the source water level rises above or
falls below a Sampling Level, t he sample collection process is initiated. T he sampler will advance t he spout,
take a sample and deposit it in the first bottle. Every time a Sample Level is exceeded or passed after that, the
sampler will t ake a sample, deposit it , and then move to the next bottle in sequence. T he sampler will continue
this pattern of depositing samples in each bottle until the total number of bottles the unit is configured for (set
in *99) each have a sample placed in them or a bottle full condition occurs.
To use the *06 mode, the following entries must be entered:
UPPER LEVEL LIMIT This is the highest anticipated level of t he source liquid. I t acts as a ceiling. I f
the water ever rises above the Upper Level Limit, t he sampler considers the level
as t emporarily fixed at the highest Sampling Level (once t he level falls below t his
point, normal program o peration resumes). I t is important t o make sure the
Upper Level Limit is high enough t o prevent this from o ccurring.
LOWER LEVEL LIMIT This is the lowest anticipated level of the source liquid. It acts as a floor. If it is
possible for t he level to drop below the Lower Level Limit, and it does, t he
sampler considers the level as t emporarily fixed at the Lower Level Limit (once
the le vel rises above this point, normal program o peration resumes). I t is
important t o make sure t he Lower Level Limit is lo w enough t o prevent this from
occurring.
SAMPLING LEVEL (1-32) These are the levels at which samples will be t aken (up t o 32 levels can be
programmed). E nter the level as a 4-digit number. R emember t he decimal point
is implied, and must be consistent with previous o nes. T he unit of measure is
generic so it can be feet, meters, etc. T he * key will end data entry at any t ime if
all 32 levels are not going to be entered.
The difference (delta) between t he Upper Level Limit and the Lower Level Limit is called the span (or
distance). In figure 2-2, the Upper Level Limit is 37 and t he Lower Level Limit is 2.5, so the span is 34.5. The
controller divides the span into 256 equal steps, with each step equal to 0.39% (1/256) of the total. The
sampler will always display the next acceptable level. A level that is greater can be entered or the user can
accept the displayed entry.
The lowest Sampling Level, must be greater t han t he Lower Level Limit and each successive level must be
greater than the previous level. I n figure 2-2, the Lower Level Limit is 2.5 and Sampling Level 1 is 4.0. T he
highest sampling level can be equal to t he Upper Level Limit, although this is not necessary. If it is equal t o the
Upper Level Limit, it must be entered separately. In figure 2-2, t he highest sampling level is equal t o t he Upper
Level Limit so it is entered as Sampling Level 7. P ress <START> t o begin t he program.
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