30 zero offset adjustment, To change the zero offset value, Toshiba – Toshiba LF600F User Manual
Page 109
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TOSHIBA
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8.2.30 Zero Offset Adjustment
Zero o№et can be easily applied to make the flowmeter outputs comparable to process values
measured by other instruments.
If the zero adjustment described in “0 Still Water Zero Adjustment” can be performed, this zero offset
adjustment is not needed.
To change the zero offset value:
Calculate the zero offset value with the following equation:
Zero offset value (%) = {(actual flow rate) - (LF600F measured value)}
* The zero offset value should be calculated in percent value for Range 1 of converter. See the
following example.
(Example)
Measured condition
Flow rate
% in measuring span
Actual flow rate obtained
from other instrument.
10.0 mVmin
50%
LF600F measured value
10.5 mVmin
52.5 %
Zero offset
-2.5 %
(If zero offset is set to -2.5 %, the converter will output 50.0 % flow rate instead of -2.5%.)
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