2. Koolance
  3. INS-FM17H

Koolance INS-FM17H User manual

  • Hello! I've read the user manual for the Koolance INS-FM17H and INS-FM19H Coolant Flow Meters. This document describes how these flow meters use a hall effect sensor to measure liquid flow rate, taking into account the tubing size. I'm familiar with their specifications, installation notes, and flow rate conversion factors. I'm ready to answer your questions about these devices.
  • What is the supply voltage for the flow meters?
    What is the flow rate range of the flow meters?
    What is the fluid temperature range for flow meters?
INS-FM17H, INS-FM19H Coolant Flow Meters v1.0
1
Koolance ow meter models INS-FM17H
and INS-FM19H use a hall eect 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 dierent based on whether
6mm (1/4in) or 10-13mm (3/8-1/2in) ID
tubing is connected to the ow meter.
Important Notes: Be sure to install the ow meter in the correct liquid
direction. This is indicated by the arrow on the ow meter’s body (see photo).
Residual air pockets in the ow meter can prevent an accurate reading.
Specications
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)
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