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C. The unit comes with all lockout bytes set in the unlocked
position ("0"). Refer to Section 9.1 for information on lockout
bytes.
If the unit has been programmed previously make sure that at least
the following lockout bytes are unlocked. If they are Not unlocked
you will not be able to scale the meter.
MENU
"L1CNF" L1C.7=0, L1C.8=0
"L2CNF" All sub menus must be unlocked "0"
Scroll to the menu by pressing the 'MENU' button. Enter a
submenu by pressing the 'MIN' button. Select "0" or "1" by pressing
the 'MAX' button. Always press the 'MENU' button when leaving
a submenu to store the values you entered.
METHOD I: SCALING WITHOUT SIMULATING A KNOWN LOAD.
All of the following steps are accomplished by using the front panel
buttons.
1. Scale the instrument by entering only 3 parameters. The 3
parameters are "RDG SC" (Reading Scale), "RDG OF" (Reading
Offset), and "DEC PT" (Decimal Point).
Calculate "RDG SC" using the following formula:
RDG SC= display span/((sensor's output span) (natural gain))
RDG SC= 200/(10 x 10000) = 0.002
Where: display span= 200 – 0 = 200
Sensor's output span= 10 volts
Meter's natural gain= 10000 (from Table 8-5)
VOLTAGE
RANGE
100 mV, ±50 mV
1 V, ±500 mV
10 V, ±5 V
100 V, ±50 V
SUBMENU
TABLE 8-5
METER'S NATURAL GAIN CHART
SENSOR'S
OUTPUT UNITS
Millivolts
Millivolts
Volts
Volts
8-43
METER'S
NATURAL GAIN
1000
100
10000
1000
8
Scaling to
Display
Engineering
Units
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