Doppler Ultrasonic Flowmeter DF6100 Manual
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49B30B30B30B
4.3.8 Engineering Units TOTAL Exponent
TOTL MUL – Flow Totalizer Multiplier
0.01 to 1,000,000
Utilize for setting the flow totalizer exponent. This feature is useful for accommodating a very large
accumulated flow. The exponent is a ×10n multiplier, where “n” can be from –2 (×0.01) to +6
(×1,000,000).
Exponent Display Multiplier
× PT 01 × 0.01
× PT 1 × 0.1
×1 × 1
×10 × 10
×100 × 100
×1000 × 1,000
×10000 × 10,000
×100000 × 100,000
×1000000 × 1,000,000
50B31B31B31B
4.3.9 Fluid Specific Gravity
SP GRAV – Fluid Specific Gravity Entry
unitless
Allow adjustments to be made to the specific gravity (density) of the liquid. If Pounds (LBS) or
Kilograms (KGS) is selected for either the RATE UNT or the TOTL UNT, a specific gravity must be
entered for the correct mass flow to be calculated.
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4.3.10 Low Flow Cut-off
FL C-OFF – Low Flow Cut-off A Low Flow Cut-off entry is provided to allow very low flow rates
(that can be present when pumps are off and valves are closed) to be displayed as Zero flow. The
value entered is in actual rate units.
When there is a reading display but no flow, please cut-off this value by “FL C-OFF”.
But the 4-20mA output will not be “cut-off”, it will
be directly proportional to
real flow value
though the low value had been cut-off.
52B33B33B33B
4.3.11 Scale Factor
SCALE F – Scale Factor
This function can be used to make the Doppler flow meter system agree with a different or reference
flow meter, or to compensate for an installation where there is inadequate straight pipe to obtain a
laminar flow profile, by applying a correction factor/multiplier to the readings and outputs. The
