GPI GM001, Owner'S Manual, Page: 9 / 20

9
OPERATION
Configuration determines what information is present on the
LCD display. For instance, total, flowrate, type of calibration,
etc.
The Display has been programmed with many features, which
can be enabled by the end user through the configuration
process. By disabling unnecessary features, day-to-day
flowmeter operation can be greatly simplified, making the
unit easier to use. Alternately, there are several features not
found in the default configuration.
Available features include:
• 0 to 3 totals, either resettable (Batch) or non-resettable
(Cumulative).
• Flowrate or no flowrate. Available in units per minute, hour
or day.
• Three different field calibration methods: K-factor entry,
Dispense/Display or % Correction Factor.
• Various units of measure (some or all): GL (gallon), LT
(litre), IGL (imperial gallon), QT (quart), CF (cubic feet),
CM (cubic meter), BL (42 gal. barrel), CC (cubic centi-
meter) or OZ (ounce).
Changing Configuration Settings
Access to the configuration settings require a specific pro-
cedure and a pin code available through the GPI Website at
www.gpimeters.net or call GPI Customer Serivce at 888-
996-3837.
CONFIGURATION
Computer Display
All operations are reflected in the LCD readout. The large center
digits indicate amounts, where smaller words or “icons” located
above and below indicate specific information regarding totals,
flow, calibration and units of measure.
Computer is on continuously while the loop is powered.
Batch and Cumulative Totals
The computer maintains two totals. The Cumulative Total
provides continuous measurement and cannot be manually
reset. The Batch Total can be reset to measure flow during a
single use. The Cumulative Total is labeled TOTAL 1, Batch
Total is labeled TOTAL 2 BATCH.
When the Cumulative Total reaches a display reading of 999,999
the computer will highlight an X10 icon. This indicates to the
operator that a zero must be added to the 6 digits shown.
When the next rollover occurs, the computer will highlight an
X100 icon. This indicates to the operator that two zeros must
be added to the 6 digits shown.
Press the DISPLAY button briefly to switch between the TOTAL
1, TOTAL 2 BATCH and FLOWRATE. Press DISPLAY briefly
to display the TOTAL 2 BATCH. Hold the DISPLAY button for
3 seconds to reset the Batch Total to zero.
When fluid is flowing through the meter, a small propeller
icon is highlighted.
Flowrate Feature
To use this feature, press and release DISPLAY until FLOWRATE
icon appears. The factory set time base will be highlighted to
the right of FLOWRATE (M = minutes, H = hours, D = days).
When FLOWRATE is invoked, the display will be indicating
rate of flow.
Factory and Field Calibration
All calibration information is visible to the user as icons on the
top line of the display, above the numeric digits.
All units are configured with a “factory” calibration. Both
gallons and liters are available (“GL” or “LT” will be displayed).
While holding the CALIBRATE button, briefly press DISPLAY
to toggle between gallons and litres. This factory calibration
(indicated with FAC) is permanently programmed into the
computer and is not user adjustable.
NOTE: Your computer may have other units of measure
programmed into it. If so, holding the CALIBRATE but-
ton and momentarily pressing the DISPLAY button will
toggle through all factory set units. Other possible units
are: IGL (imperial gallon), QT (quart), CF (cubic feet), CM
(cubic meter), BL (42 gal. barrel), CC (cubic centimeter)
or OZ (ounce).
Switching between different units will not corrupt the Total’s
contents. For example, in GL mode, the computer totalizes
10.00 gallons, if the user switches to LT mode, the display will
read 37.85 litres (the same volume, different unit).
The “field” calibration may be set by the user, and can be
changed or modified at any time using the calibration procedure
described in the Calibration Section. Totals derived from the
field calibration are invoked when the FAC icon is no longer
visible on the top line of the display.
CALIBRATION
Field Calibration Procedures
(K-Factor Method)
If the display was purchased as an accessory or remote,
then the field calibration method set at the factory is K-factor
Entry method.
This method allows the user to key in a single point K-factor
value that represents the meter it will be used with. K-factor
values for specific meters can be found on the meter itself,
in Table 1 or www.gpimeters.net.
1. To field calibrate, press and hold both CALIBRATE and
DISPLAY buttons for about 3 seconds until you see
FLdCAL. Release both buttons and you will see Kxxxx.x
(where “x” represents the current field-cal k-factor value).
You are now in the field calibration mode.