Great Plains Industries FM-300U Kullanıcı El Kitabı - Sayfa 4
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If the display is dim or fading, replace
the battery using instructions in the
Maintenance Section. Also check bat-
tery terminals for corrosion. To prevent
corrosion from condensation, coat the
terminals with petroleum jelly.
Verify Meter Accuracy
Before using, verify calibration and check
the meter's accuracy.
1. If desired, hold down DISPLAY for
three seconds to zero the meter's
Batch Total. When zeros appear,
release the button.
2. Meter an exact known volume into
an accurate container. For best re-
sults, meter with one continuous full
stream.
3. Check the readout. If the amount
metered is accurate, field calibra-
tion is not needed. If not, refer to
the Calibration Section for further
instructions.
NOTE: Best performance can be ob-
tained by using the factory calibra-
tion.
OPERATIONS
WARNING
This meter is approved to handle
water, pesticides, fertilizers, and
most industrial fluids. Do not use for
gasoline, diesel, or other fuels. Do
not use this meter with flammable
liquids.
All meter operations are reflected in the
readout on the face of the meter.
The readout contains three lines of
information. They are generally defined
as follows:
• The top line indicates the calibration
curve.
4
• The middle line reflects flow infor-
mation.
• The bottom line shows information
from the totalizer.
The words or "flags" that display on the
top and bottom line further identify spe-
cific information.
Turn On
The meter is on when any display is pres-
ent. It turns on automatically when liquid
flows through the meter. It can be turned
on manually by pressing and releasing
the DISPLAY button.
Turn Off
Whenever no flow has been sensed
for one minute, the unit automatically
switches to a power-saving "sleep" mode
with a blank display. The unit will auto-
matically "wake up" the moment any flow
is sensed and will remain awake as long
as fluid is flowing. Totals are never lost
during sleep periods.
Batch and Cumulative Totals
Total flags are displayed on the bottom
line. The Cumulative Total is the total of
all fluid measured since the meter's power
was connected.
NOTE: At your first use, the Cumulative
Total may not read zero because of
calibration at the factory.
The Batch Total (labeled TOTAL 2) indi-
cates flow during a single use. (Figure 2)
Figure 2