The HYDAC flow switches of the HFS 2000 series are based on a variable area float principle. The measuring medium deflects a springloaded float in the direction of flow, depending on the flow rate. A reed contact is fitted outside of the device, therefore separated from the fluid circuit. When the magnet inside the float reaches the pre-set position, the reed contact will switch.
Unit of Measure

Specifications

Model Code Description

N/A HFS 2135-2W-0002-0008-7-B-1-000

Industry Standards/Certifications

N/A European Conformity (CE) Mark Directive 2006/95/EC

European Conformity (CE) Mark Directive 2004/108/EC

Type

N/A Mechanical Pressure Switches

Pressure [Max]

N/A 3625 psi

Weight

N/A 3.34 lb

Switching Current

N/A 1.5 A

Operating Temperature [Min]

N/A -4 ºF

Operating Temperature [Max]

N/A 158 ºF

Housing Material

N/A Brass, Nickel-Plated

Connection Size

N/A G3/8, Female on Both Ends

Switch Type

N/A 2 Change-Over Reed Contact

Electrical Connection

N/A Male EN175301-803 (DIN 43650)

Accuracy

N/A ≤ ± 10% Full Scale (FS)

Degree of Protection

N/A IP 65

Pin Connection 1

N/A Center

Pin Connection 2

N/A N/C Contact

Pin Connection 3

N/A N/O Contact

Pin Connection (Ground)

N/A Housing

Fluid Temperature Range

N/A -4 to 248 ºF

Viscosity Range

N/A 30 to 600 cSt

Output Repeatability (Full Scale)

N/A 2 %

Switching Capacity

N/A 50 V·A250 V

Switching Range

N/A 2 to 8 L/min

Pressure Drop

N/A 0.02 to 0.4 psi

Division

N/A ELECTRONICS

Product Group Family

N/A FLOW SENSORS

Product

N/A LEVEL/FLOW SENSORS

Note

N/A The medium must not contain solid particles. We recommend using contamination strainers.

External magnetic fields can affect the switching contact. Ensure sufficient distance from magnetic fields (e.g. from electric motors).