ModMAG M1000 - Measurement Menu Details; Flow and Totalizer Unit Selection; Flow Scale and Cutoff Configuration; Flow Direction Measurement

Measurement Menu
Measurement
Flow Unit
U
Flow Units let you select among the flow units listed below. Flow units are automatically converted into
the selected unit.
Display Flow Unit Display Flow Unit
L/s Liters/Second gal/s Gallons/Second
L/min Liters/Minute gal/min Gallons/Minute
L/h Liters/Hour gal/h Gallons/Hour
m
3
/s Cubic Meters/Second MG/d MillionGallons/Day
m
3
/min Cubic Meters/Minute IG/s ImperialGallons/Second
m
3
/h Cubic Meters/Hour IG/min ImperialGallons/Minute
ft
3
/s Cubic Feet/Second IG/h ImperialGallons/Hour
ft
3
/m Cubic Feet/Minute oz/min Ounce/Minute
ft
3
/h Cubic Feet/Hour bbl/min Barrel/Minute
Totalizer Unit
U
This parameter establishes the units of measure for the totalizers.
Display Totalizer Unit Display Totalizer Unit
L Liters MG Million Gallons
hL Hectoliter IG Imperial Gallons
m
3
Cubic Meters bbl Barrel
ft
3
Cubic Feet oz Fluid Ounces
gal U.S. Gallons ac/ft Acre per foot
Full Scale Flow
S
This parameter sets the maximum flow the system is expected to measure. This parameter has influence
on other system parameters like analog output or low flow cutoff.
In terms of flow velocity, the meter’s range is 0.3…12 m/sec.
The full scale flow is valid for both flow directions.
OTE: N If the flow rate exceeds the full scale setting, an error message indicates that the configured full
scale range has been exceeded.
Low Flow Cutoff
U
Low Flow Cutoff defines the threshold at which flow measurement will be forced to zero. The cutoff
value can be from 0…10% of the full scale flow. Increasing this threshold will help prevent false
readings during “no flow” conditions, possibly caused by vibrations or liquid fluctuations.
Flow Direction
S
Flow direction lets you set the meter to measure forward flow only (Uni-directional) or both forward
and reverse flow (Bi-directional).
Uni-directional means that the flow is totalized in only one direction. The flow direction is indicated by
the arrow printed on the detector label. In this mode, the two totalizers, T1+ and T2+, can be used as
totalizers and resettable day counters.
Bi-directional means the flow is totalized in both directions. The totalizers T1+ and T2+ register
forward flow and the totalizers T1– and T2– register reverse flow direction. The net totalizers T1N and
T2N show the difference between T+ and T–. A change of the flow direction can be signalled by the
digitaloutputs.
M1000 Main Menu Programming Options
Page 27 March 2020 MAG-UM-00379-EN-07