Great Plains Industries FM-300U Посібник користувача - Сторінка 5
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Clearing a Totalizer
The Batch totalizer register (TOTAL 2)
may be independently cleared to 0.00 at
any time. To clear a Batch totalizer, with
the desired totalizer displayed, press
and hold the DISPLAY button. At about
3 seconds, the displayed total will be
cleared to "0.00". You can do this even
while fluid is flowing, in which case,
counting will resume after you release
the DISPLAY button.
The Cumulative totalizer register is labeled
as TOTAL 1 LOCKED indicating that it
cannot be manually zeroed (Figure 3). The
Cumulative totalizer is cleared only when
the batteries are removed or go dead or
when the Cumulative Total reaches the
maximum value of 999,999.
Changing Display Registers
During normal operation, to change to
another totalizer register or to FLOW-
RATE mode, watch the bottom line
display flags while you briefly press and
release the DISPLAY button. With each
operation, the mode will advance as
follows: TOTAL 1 LOCKED (Cumulative
Total), TOTAL 2 (Batch Total), FLOWRATE,
TOTAL 1 LOCKED (etc.). You can change
registers at any time, even during flow.
Non-visible totalizer registers will continue
to accumulate.
NOTE:
Generally, display registers
change when the buttons are re-
leased. Also, not all models include
the FLOWRATE mode.
Factory and Field Calibration
Curves
GPI flow computers have enhanced
calibration features. All calibration infor-
mation is visible to the user as words in
the upper part of the display, above the
numeric digits. There are two types of
calibration curves: Factory Calibration
and Field Calibration.
Factory Calibration curves are "preset"
by the manufacturer and stored perma-
nently in the computer's memory. Factory
calibration curves always display PRESET
on the top line of the readout (refer to
Figure 2). Factory Calibration is either in
gallons or litres.
Figure 3
A Field Calibration curve is set by the
user. The field calibration curve may be
changed or modified at any time using
the calibration procedure described in
this Section. Totals or flowrate derived
from the field calibration are visible when
the field calibration setting is selected.
All units are configured with two Factory
Calibration curves and one Field Calibra-
tion curve:
• Factory Calibration curve for thin
viscosity liquids (GAL or LTR PRE-
SET is displayed).
• Factory Calibration curve for me-
dium to thick viscosity fluids (CAL
B PRESET is displayed).
• Field Calibration curve (CAL C is
displayed).
CALIBRATION
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