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6-40
1020NFM-1D
Section 6
Maximum span values represent
:
Minimum span values represent:
100% of span
0% of span
Current output of 20 mA
Current output of 4 mA
Voltage output of 10 Vdc
Voltage output of 0 Vdc
PGEN
The [PGEN P/
Unit Volume
] menu cell entry controls a digital output pulse function. It allows the assign-
ing of PGEN digital signal pulses per unit of volume. For example, 1000 output pulses per unit volume
of liquid.
Note: This output is not available on Dual Channel systems.
NOTE: The unit of volume is determined by the Volume Units initially selected from the [Total
Volume Units] menu cell option list (refer to paragraph 4.6.5).
To assign PGEN output pulses:
From the [Span Data] menu press the <Right Arrow>.
From the [PGEN P/Unit Volume] menu cell, press the <Right Arrow> to activate the numeric
entry.
Use the numeric keys to enter the desired number of PGEN pulses per unit volume.
To store the data press <ENTER>.
Vfab is the absolute magnitude of the volumetric flow rate (Vfo). There
are no menu cells provided to span this output. Vfab shares the Vfo
span entries. The Vfab minimum span is always zero. The maximum
span for Vfab is the largest absolute value of either the min. or the max.
flow rate (Vfo) entries. For example, a span b10 GPM and -30
GPM, spans the Vfab output from 0 GPM to 30 GPM.
Vfab
Spanned Absolute
Volumetric Flow Rate:
Vs is the sonic velocity in meters-per-second (m/s) of the flowing liquid.
The min. and max. Vs entries establish the Vs span. Max Vs (m/s)
defines 100% of span. The Min Vs (m/s) defines 0% of span.
Vs
Spanned Liquid
Sonic Velocit
y:
The minimum and maximum flow rate entries establish the Vfo span.
The [Max Flow] menu cell sets 100% of span. The [Min Flow] menu cell
sets 0% of span. Use signed numbers for bi-directional spanning. Note
that negative (reverse) flow is always lower than positive flow, whatever
its absolute magnitude. For example, for a flow measurement range of -
30 GPM to +10 GPM, the 4 mA span will be -30 GPM, and the 20 mA
span will be +10 GPM.
Vfo
Spanned Volumetric
Summary of Contents for SITRANS FUS1020
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Page 223: ...990TNHM 8 OUTLINE DIMENSIONS TRANSDUCERS TRACKS DEDICATED HYBRID MODE 21614 C ...
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Page 226: ...21614 C PFA DFT FLOWTUBE INSTALLATION OUTLINE 992DFTP T 8 ...
Page 227: ...INSTALLATION OUTLINE 992 SERIES EXTENDED FLOWTUBE 21614 C 992DFTN 8 ...
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