KOOLANCE INS-FM17H Coolant Flow Meters User Manual

June 13, 2024
KOOLANCE

KOOLANCE INS-FM17H Coolant Flow Meters User Manual
KOOLANCE INS-FM17H Coolant Flow Meters

Koolance flow meter models INS-FM17H and INS-FM19H use a hall effect sensor to detect impeller rotation pulses.

A specialized circuit is required to convert the signal pulses into liquid flow rate values. Please see the conversion rates provided in the graph to the right. The multiplier is different based on whether 6mm (1/4in) or 10-13mm (3/8-1/2in) ID tubing is connected to the flow meter.
Instruction

Specifications

Supply Voltage: 4.5-24VDC
Supply Current: 10mA max.
Wire Colors: Red= VCC+, Black= Ground, Blue= Signal Out
Wire Connector: JST XHP-3
Flow   Rate Range: 1.0 – 20 LPM (0.26 – 5.3 GPM)
Fluid Temperature Range: 0 – 70 ºC (32 – 158 ºF)

Important Notes: Be sure to install the flow meter in the correct liquid direction. This is indicated by the arrow on the flow meter’s body (see photo). Residual air pockets in the flow meter can prevent an accurate reading.
Overview

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