0 34LPM
120
32
87
1
3
A-coding
In water. Set point accuracy: ±15%.
Repeatability (not considering the viscosity change of liquids): ±10%.
Technical Specications
PPA (Polyphthalamide)
AISI 302 stainless steel
114mm
2
25bar
0°C to 100°C | 140°C @1h
G 1/2” female (BSP - Parallel)
NBR (nitrilic rubber) O’Ring
M12 male plug (2 pins)
M12 female connector NOT included
IP66
Reed Switch 20W/VA (NA SPST)
200g
Body
Spring
Internal clearance
Maximum operating pressure
Operating temperature range
Inlet/outlet port
Sealing
Output connection
Enclosure rating
Electrical contact
Weight
Suitable for Detection of Medium Flows
Fluid ow through the sensor triggers precise displacement of a magnetic piston acting on an electrical contact (Reed Switch).
Installation
• In applications without excessive vibration;
• Minimum distance of 20mm from any ferrous surface;
• Mounting with parallel port connection and O’Ring.
Mounting
Dimensions in millimeters.
Sealing
Flow Rate Sensitivity Adjustment
Results of the
sensitivity test
(xed in the package)
Allen wrench to
adjust the sensitivity
(included)
Maintenance
1. Open the plug, remove the spring and clean using a brush if
there is encrustation;
2. Mount the sensor again as illustrated beside;
3. Test the electrical contact using an ohmmeter, moving the
magnetic piston.
On datasheets.eicos.us available technical specications
Flow Switches and Level Switches for liquids
Model
Actuation Range in Water
(in LPM)
FH12B02-M12 From ~0.3 to ~17
FH12B04-M12 From ~0.6 to ~29
FH12B06-M12 From ~1.0 to ~34
O’Ring (NBR) for sealing
Parker code 2-116
(included)
GAS (BSP) Thread
The sealing is made on the ring.
It’s not necessary sealant tape or
over tightening
Check compatibility with NPT
thread on datasheets.eicos.us
Scale
Brush
Allen
Wrench
10mm
Plug
Piston
Spring
O’Ring
Output plug
M12 plug
1
3
A-coding
Hex screw for
sensitivity adjustment
CORRECT
FLOW
FLOW
WRONG
M12 female
connector
Electrical Connection
FLOW INCREASE - ON
FLOW DECREASE - OFF
Male M12 plug
2 pins
Flow
Switch
3-BK
1-BR
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General