23
Electromagnetic Flowmeter
COPA-XE / MAG-XE
4.10 Density
Numeric entry
When the flowrate indication and the totalization are to be in
mass units, g, kg, t pounds or uton, a fixed density value can be
entered for the calculations.The conversion to mass flowrate
can be set in the range from 0.01 to 5.00000 g/cm
3
.
4.11 System Zero
Numeric entries
After the installation has been completed the zero should be ad-
justed at the converter. The flowrate is to be reduced to zero.
The adjustment can be made automatically by the converter. A
manual entry is also possible. The zero value is set to 0 Hz
when the C/CE key is pressed. A measured output frequency
value can then be entered as the correction value.
Select the parameter “System Zero” and press ENTER.
For security the following message is displayed:
The choice between “manual” and “automatic” can be made
using the STEP or DATA keys.
The converter initiates the automatic adjustment procedure
when ENTER is pressed. The values in the display count down
from 255 to 0. The adjustment procedure is repeated 4 times.
The final zero value must be within the limits set in the converter
of ± 50 Hz. If the value is outside of the limits the zero
adjustment is not completed. The value determined by the
converter is displayed in the 2nd line.
4.12 Submenu Units
The following parameters are included in this submenu:
• Engineering Units Q
max
• Engineering Units Qmax
• Engineering units with Units Factor, user programmable
• Unit Name, user programmable and
• Prog. Units with/without density correction.
The last three entry parameters are required for any new user
units which are not included in the program or in the table in
Sect. 4.12.1. When this function is utilized the factory set unit
"kgal" is cleared.
4.12.1 Units Qmax
Entry from table
The units listed in the following table can be selected using the
STEP and DATA keys and accepted by pressing ENTER.
The units selected apply to Q
maxDN
, Qmax and to the instantaneous
flowrate values in the display when they are displayed in direct reading
engineering units.
Density
2.54300 g/m3
System Zero
3.5 Hz
Submenu
Units
Units
Liter l/s
l/min
l/h
Hectoliter hl/s
hl/min
hl/h
Cubic meter m
3
/s
m
3
/min
m
3
/h
m
3
/d
Imperial gallon ipgs
igpm
igph
igpd
U.S. million gallons per day mgd
U.S. gallon gpm
gph
Barrels, Brewery bbl/s
bbl/min
bbl/h
Barrels, Petrochemical bls/day
bls/min
bls/h
bbl/d
Kilogram kg/s
kg/min
kg/h
kg/d
Ton t/s
t/min
t/h
t/d
Gram g/s
g/min
g/h
Milliliter ml/s
ml/min
ml/h
Megaliter Ml/min
Ml/h
Ml/day
Pound (454 g) lbs/s
lbs/min
lbs/h
US-Ton uton/min
uton/h
Uton/day
Units Qmax
l/s
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