User's Manual

Flow Sensor to Pipeline Installation
The accuracy of the fl ow sensor’s measurement is highly dependent on proper sensor location within the piping
system. Irregular fl ow velocity caused by valves, fi ttings, pipe bends, etc. can lead to inaccurate fl ow rate
measurements even though local fl ow velocity measurements may be accurate. A sensor located in the pipe
where it can be affected by air bubbles, fl oating debris, or sediment may not achieve full accuracy and could be
damaged. The Toro fl ow sensors are designed to operate reliably even under adverse conditions but following
recommendations will ensure maximum system accuracy.
Select a location along the pipe system that is 10 times the pipe diameter upstream and 5 times the pipe diameter
downstream to minimize fl ow disturbance. Pipe bends, valves, pipe fi ttings, pipe enlargements and reductions
should not be present within this pipe length.
Note: For 1.5” and larger fl ow sensors, install according to the fl ow direction shown by the arrow on the tee. For 1.0”
and smaller fl ow sensors, installation is not dependent on fl ow direction.
Flow Sensor to Pipeline Installation
Step 1 - Remove the sensor from the tee.
a. For 1.5” and larger Sensors: Pull the clevis pin that retains the fl ow sensor to the tee,
then carefully remove it from the tee.
b. For 1.0” and smaller Sensors: Unscrew the sensor cap from the tee by turning it counterclockwise.
Carefully pull the sensor out from the tee.
Step 2 - Properly clean the pipe ends and tee socket.
Step 3 - Use solvent cement to secure the pipes to the tee.
Step 4 - Reinstall the sensor to the tee as follows:
a. For 1.5” and larger Sensors:
i. Align the fl ow arrow on top of the sensor housing to the direction of the fl ow.
ii. Carefully press the sensor straight into the tee.
iii. Install the clevis pin through the tee and sensor.
iiii. Install the cotter ring into the clevis pin.
b. For 1.0” and smaller Sensors:
i. Carefully line up the guide pin on the sensor to the slot on the tee.
ii. Carefully press the sensor straight into the tee.
iii. Screw the sensor cap fi rmly onto the tee.
Note: Hand tighten the sensor only.
Step 5 - Complete the wiring connections.
10 X Pipe Diameter 5 X Pipe Diameter
Flow