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

HFS 2145-1S-0001-0004-7-B-1-000

Industry Standards/Certifications

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

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

Type

Mechanical Pressure Switches

Pressure [Max]

3625 psi

Weight

3.5 lb

Switching Current

3 A

Operating Temperature [Min]

-4 ºF

Operating Temperature [Max]

158 ºF

Housing Material

Brass, Nickel-Plated

Connection Size

G1/4, Female on Both Ends

Switch Type

1 Normally Open Reed Contact

Electrical Connection

Male EN175301-803 (DIN 43650)

Accuracy

≤ ± 10% Full Scale (FS)

Degree of Protection

IP 65

Pin Connection 1

Center

Pin Connection 2

N/O Contact

Pin Connection 3

Not used

Pin Connection (Ground)

Housing

Fluid Temperature Range

-4 to 248 ºF

Viscosity Range

30 to 600 cSt

Output Repeatability (Full Scale)

2 %

Switching Capacity

100 V·A230 V

Switching Range

1 to 4 L/min

Pressure Drop

0.02 to 0.4 psi

Division

FILTER SYSTEMS

Product Group Family

PORTABLE OFFLINE FILTRATION

Product

OFF-LINE FILTERS

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).