Koolance INS-FM17N-R - Manual

INS-FM17N, INS-FM18 Coolant Flow Meters v 1.3
1
Specifications
Flow Rate Range:
1.0 - 15 LPM (0.26 - 4 GPM)
Fluid Temperature Range:
0 - 70 ºC (32 - 158 ºF)
Frequency Adapter
An optional Koolance power adapter (ADT-FM03) can be used to multiply the flow meter impeller
signal. This allows most fan detection software, including many computer BIOS programs, to
see the flow meter tachometery as if it were a 12VDC fan RPM signal. The multiplied RPM
signal can allow 3rd-party software to log or enable an alarm event for the flow meter impeller.
With ADT-FM03, flow meter “RPMs” represent approximate coolant flow rate in mL/min, and not actual
revolutions. Be aware that 3rd-party software and BIOS programs must be configured properly if the flow
meter will be used to initiate a safety procedure.
The connections and functions for ADT-FM03 are illustrated below.
Koolance INS-FM17N and INS-FM18 flow
meters use a normally-open magentic reed
contact switch which responds to internal
impeller rotation.
The flow meters should not be directly
connected to high power outputs like
12VDC fan headers or similar controllers.
If connected directly to a custom circuit,
the intended current range is 50-100mA. A
signal graph is provided to the right:
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. Residual air
pockets in the flow meter will not result in an accurate reading.
“Fan” RPM connection
12VDC
power supply
connection
Coolant Flow Switch
(Set for 10-13mm or
6mm ID Tubing)
Flow Meter
(INS-FM16 Only) LED Switch