NOTE: Verify your calibration. Use full flow
when calibrating. Meter accuracy is based
on proper calibration for each herbicide and
fluid temperature.
1. Fill pump, meter, hose and system by turn-
ing pump on, holding nozzle open, and fill-
ing a container until a full solid flow occurs.
Close nozzle.
2. Reset main meter dial to 000.0. Turn count-
er reset knob counterclockwise.
3. Fill a carefully measured 5 gallon container
(GPI Calibration Container P/N 116000-1)
up to marked point.
4. Note meter counter reading. If the meter
registers less than the container volume,
remove seal screw (111039-2) and turn the
calibration screw (111014-3) clockwise. If
main counter reading is more than con-
tainer volume, turn calibration screw coun-
terclockwise.
5. Continue calibration steps above until
counter reading is equal to measurement
container volume. Reinstall seal screw.
Owners Manual for
Model FM100H Meter
GENERAL INFORMATION
To the Owner:
Please read the manual carefully before us-
ing your new meter. The information provided
will help you achieve years of dependable per-
formance and trouble-free operation.
•
Lightweight, corrosion resistant cast
aluminum body
•
Burnished aluminum finish
•
Registers up to 999.9 gallons (9,999 litres)
per delivery
•
Totalizer registers up to 99,999 gallons
(999,999 litres)
•
50 psi (3.4 bar) maximum working pressure
•
Large reset knob
•
Operating range: 4-20 GPM (15-75 LPM)
•
Inlet and outlet thread: 1” NPT or (1” BSPP)
Approved Chemicals for
Model FM100H Herbicide Meter
The GPI Herbicide Meter has been tested and
approved for most mini-bulk herbicides and
other chemicals that are compatible with alu-
minum, Viton
®
, thermoplastic polyester, stain-
less steel and Delrin
®
.
Thread pipe nipple into pump outlet. Using
bushing if required, install meter by applying
Teflon
®
tape to threads and turning meter onto
nipple.
NOTE: Meter outlet is marked on meter
housing.
Attach hose and nozzle to meter outlet using
Teflon
®
tape on all threads.
SPECIFICATIONS
INSTALLATION
Rev. A 921626-2
W A R N I N G
GPI Herbicide Meter is approved to handle
only herbicides that are compatible with
meter materials. Meter is not approved for
gasoline, diesel and other fuels.
C A U T I O N
Always wear goggles, protective gloves,
and any other protection required for han-
dling herbicides. Observe all safety in-
structions for herbicides when handling
or servicing equipment.
CALIBRATION
5252 East 36th Street North
Wichita, KS USA 67220-3205
TEL: 316-686-7361
FAX: 316-686-6746
“ A G r e a t P l a i n s Ve n t u r e s S u b s i d i a r y ”
www.gpi.net
1-800-835-0113
11/05