Maintenance; Precautions; Specifications; Battery Replacement - GPI TM Series Operation Manual

11. If you HAVE NOT dispensed any fluid, you
can exit calibration without changing the
cal curve. If the message "run 01" is show-
ing and you have not dispensed any fluid,
hold both buttons for about 3 seconds until
you see a "CAL End" message. After you
release the buttons, the computer will re-
sume normal operation and the old curve (if
you entered one in the past) is still intact.

MAINTENANCE

Proper handling and care will extend the life
and service of the meter.
Turbine Rotor
The meter is virtually maintenance-free. How-
ever, it is important the rotor moves freely.
Keep the meter clean and free of contaminants.
If the rotor does not turn freely, apply a pen-
etrating lubricant on the rotor, shaft, and bear-
ings. Remove any debris or deposits from the
rotor using a soft brush or small probe. Be care-
ful not to damage the turbine rotor or supports.
! ! ! CAUTION ! ! !
Blowing compressed air through the tur-
bine assembly could damage the rotor.

Battery Replacement

The meter is powered by two 3-volt lithium
batteries which may be replaced while the
meter is installed. When batteries are removed
or lose power, the batch and cumulative totals
reset to zero but the field and factory calibra-
tions are retained.
If the meter display becomes dim or blank,
replace the batteries as follows:
1. Remove the four Phillips-head screws from
the face of the meter and lift the faceplate
from the turbine.
2. Remove the old batteries and clean any
corrosion from the terminals.
3. Install new batteries. Make sure the posi-
tive post is in the correct position.
4. When the batteries are replaced, the face-
plate will power ON. Check the display to
ensure normal functions have resumed
before assembling again.
4
5. Reseat batteries, if necessary, and posi-
tion the faceplate on the turbine housing.
To avoid moisture damage, make sure the
O-ring is fully seated. Tighten the four
screws on the faceplate.

SPECIFICATIONS

Inlet and Outlet:
TM050 1/2" Schedule 40, Soc
TM075 3/4" Schedule 40, Soc
TM100 1" Schedule 40, Soc
TM150 1-1/2" Schedule 40, Soc
TM200 2" Schedule 40, Soc
TM050-N 1/2" NPT
TM075-N 3/4" NPT
TM100-N 1" NPT
TM150-N 1-1/2" NPT
TM200-N 2" NPT
Design Type: Turbine
Wetted Components:
Housing: PVC
Journal Bearings: Ceramic
Shaft: Tungsten Carbide
Rotor and Supports: PVDF
Retaining Washer: Stainless Steel
Fitting Types: Slip - Schedule 40 Soc or NPT
Max. Working Pressure: 150 PSIG @ 73°F
U.S. Measurement
Unit of Measure: Gallon
Flow Range:
1/2 inch 1 - 10 GPM
3/4 inch 2 - 20 GPM
1 inch 5 - 50 GPM
1-1/2 inch 10 - 100 GPM
2 inch 20 - 200 GPM
Accuracy: ± 3.0% (Accuracy can be
improved with field calibration)
Operating Temperature:
Storage Temperature: –40° to +158° F
Product Weight:
1/2 inch .31 lbs.
3/4 inch .38 lbs.
1 inch .51 lbs.
1-1/2 inch .81 lbs.
2 inch 1.14 lbs.
*
Do not allow fluid to freeze inside meter.
*
+32° to +140° F