Koolance INS-FM18D-R User Manual
Ins-fm18d coolant flow meter
INS-FM18D Coolant Flow Meter
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Flow Rate Range:
2.0 - 15 LPM (0.53 - 4 GPM)
Fluid Temperature Range:
0 - 70 ºC (32 - 158 ºF)
The Koolance INS-FM18D flow meter uses a magentic reed contact switch which responds to internal
impeller rotation. It is powered by 12V DC. The integrated LED display reports flow rate in liters per minute
(LPM).
Residual air in the liquid will reduce flow meter accuracy.
Be sure to install the flow meter in the correct liquid direction.
This is indicated by the arrow on the flow meter’s body. If the
opposite direction is desired, detach the flow meter from the
black bracket and reattach facing the opposite direction.
12VDC power supply
connection
Tubing ID
Switch
Flow direction must correspond with the arrow.
Bracket detachment screws
Connect the female plug to an available 12V DC power supply. Set the “TUBING” switch based on the
internal hose diameter connected to the flow meter: 6mm (1/4in) ID tubing, or 10mm/13mm for 10mm
(3/8in) or 13mm (1/2in) ID tubing.