Siemens 200 Volume [MR 200]

7ML19981FB06 MultiRanger 100/200 – INSTRUCTION MANUAL Page 51
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Volume
Volume [MR 200]
Volume is a feature of the MultiRanger 200 only. Volume is used in two situations:
1. Calculate and display volume instead of level. For programming all setpoint
parameters in terms of volume units rather than level units.
2. Calculate pumped volume to accomplish the following:
• Totalize the volume of material that is pumped out of the wet well
• Set an alarm on pump efficiency
If you require this functionality, please contact your local Siemens Milltronics
representative at www.siemens.com/processautomation .
Readings
When using volume, readings are given in arbitrary units specified in P051.
The default is 100, which gives a reading in percent of total. Use whatever units you want
here. If the value is too large for the four-digit LCD, use a larger unit.
Example
If a wet well has a maximum capacity of 250,000 liters, use the value 250.0 for P051 and
set the reading in 1000s of liters.
Tank Shape and Dimensions
There are many common tank shapes to select from. (See P050. If possible, use one of
these.) Each tank shape uses the Empty distance (P006) in its calculations of volume.
Some tank shapes also require extra dimensions to calculate the volumes. Do not
estimate these values. They must be correct to ensure the accuracy of your volume
calculations.
To configure volume for a tank with a half-sphere bottom, set the
following:
Paramete r Index Value Description
P050 1 4 selects the correct tank shape
P051 1100 sets maximum volume at 100 (percent)
P052 1 1.3 sets A to 1.3m
Notes:
• The default reading changes to a range from 0 to 100 (the value in P051)
• Empty (P006) is still measured to the bottom of the tank, not the top of A.