Manning YB8, Operating And Instruction Manual

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PROGRAMMING SECTION MODEL YB 8
April 1999/Manning Environmental Inc.
3DJH%
Time Override 2-6 Subsequent Time Overrides that correspond to the equivalent Sampling Level.
The difference (delta) between the Upper Level Limit and the Lower Level Limit is called the span (or
distance). In figure 2-3, the Upper Level Limit is 65 and the Lower Level Limit is 4, so the span is 61. The
controller divides the span into 256 equal steps, with each step equal to .39% (1/256) of the total. If a level
which is not a multiple of 1/256 is entered, the controller will indicate an acceptable entry. Up to 6 levels can
be entered, however data entry can be stopped at any time by pressing the * key. After the * key is pressed,
the LCD will prompt the user to either start the Program or add-on other options.
NOTE: In order for the sampler to correctly scale the analog signal being output from the external device, the
parameters (in this case Upper Level Limit and Lower Level Limit) set in the sampler and the external device
must be the same. This is to ensure that if the external device is reading 10 feet and outputting a 4mA signal,
the sampler will also know that 10 feet is equal to 4mA. If the parameters do not correspond, there is a risk
that the sampler will potentially not scale the analog signal correctly and will subsequently not take samples at
the anticipated or correct instances.
Figure 2-3 The *09 Storm Water Sampling Mode