Finish Thompson FM3000 Series - Manual (Page 4)

1. The meter must be installed so the arrows molded in the body of the meter point away from the pump discharge.
2. Slide two o-rings (Items 3) over threads of flow meter body (item 1) until they reach the face of the body. Wrap Teflon tape on threads of
both ends of flow meter. Screw the Hose Barb Adapter (Item 2) onto discharge end of flow meter. Tighten securely by hand until it com-
presses the o-ring inside the adapter, being very careful not to over-tighten.
3. Screw coupling (item 4) onto the other end of the flow meter. The coupling is 1” NPT x 1” BSPP. The BSPP end has the larger chamfer.
Make sure the BSPP end is threaded onto the flow meter body. Tighten securely by hand until it compresses the o-ring inside the
coupling, being very careful not to over-tighten.
4. Remove discharge nut, spout and o-ring (items 9, 8, 7) from PF discharge. Discard the discharge nut and spout (or save for later use if no
longer using the pump with a flow meter). Save the o-ring for use in the next step.
5. Place the flow meter adapter (item 6) into the discharge nut (item 5) supplied with the flow meter kit. Threads of the adapter will protrude
through the front of the discharge nut. Place the o-ring (item 7) inside the discharge nut (item 5). Press down on the o-ring to ensure it is
seated in the nut.
6. Screw discharge nut/adapter/o-ring assembly onto the discharge of the PF pump tube. Use a wrench to tighten securely but do not over-
tighten. This step prevents the adapter from rotating when the flow meter is installed.
7. Grasping the flow meter body (being careful not to put pressure on the digital display), screw the flow meter assembly onto the 1” NPT
discharge adapter on the PF Series pump tube until tight. If the flow meter display is not in the upright position proceed to step 8 for
adjustment.
8. Using a wrench, loosen the discharge nut (item 5) on the discharge of the PF Series tube. Position the flow meter assembly so the display
is in the upright position and retighten the discharge nut (while holding the flow meter assembly).
NOTE: Meter can be tilted as much as 45º from upright position.
WARNING: Use chemicallly compatible hose rated for the temperature of the fluid being pumped.
9. Attach 1” ID hose to the hose barb located at the discharge end of the flow meter. Secure with a hose clamp.
Section 1 - Installation
NOTE: Avoid exposing the LCD for prolonged periods to direct sunlight or the life of the LCD may be reduced.
Section 2 - Operation
NOTES:
The FM-3000 can display either U.S. gallons or liters.
The meter is shipped from the factory with the lithium battery installed.
The FM-3000 Series is factory calibrated to ± 1% of full-scale rate reading. Accuracy is based on laboratory testing using a PF Series
pump tube.
The meter automatically turns on and begins operation when flow is detected.
Motor can only be turned ON/OFF through the meter when it is connected to the batch control relay module.
Bypass the batch control relay module by plugging the motor into a standard receptacle. The motor can now be operated from the ON/OFF
switch on the motor. The motor will now function when the meter is not in batch mode. •
•
•
•
•
•
2
Theory of Operation
Start the pump motor. Fluid flowing through the meter causes a radial turbine wheel to spin. Pulses generated by the spinning turbine wheel
are counted and multiplied by scaling factors. The resulting flow rate amounts and total flow amounts are displayed on the LCD readout. Press-
ing the “Mode Menu” button located on the front panel toggles the display between flow rate and total flow.
WARNING: When the motor is connected to the batch control relay module make sure the motor switch is in the OFF position until ready
to use the batch control feature to prevent unintended pump operation.
Four Flow Ranges
There are four flow ranges. Range 1 is factory set for water. The other three are user adjustable. Each range totals independently from the
other ranges. These ranges can be used to calibrate the meter for different fluids or to accommodate different flow ranges (low, medium and
high flow for example).