FS-21 Filter Control

FS-21 Filter Control

The FS-21 Filter Controller performs the basic tasks for controlling a single or double filter unit with pilot distributors or central control valves.

The valve types are selected via configuration and the FS-21 adapts automatically to the selected valve type during the course of operation. Both decarbonisation filters and gravel-packed filters can be regulated.

For more complex applications and an expanded range of functions, we recommend the use of our  FS-201 filter control.

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Technical Data

Operating voltage 230 V, 50 Hz
Power consumption
approx. 10 VA
Fuse protection 4 A T (alternative: 4 A mT)
Option 24 V version (24 V AC valve voltage supply)
max. 20 VA, 1 A T fuse protection
Data retention on power failure Approx. 72 hours of operating data
Configuration and parameter data are
safely archived in EEPROM.
Outputs 2 phase-assigned changeover contacts (230 V AC)
2 phase-assigned normally open contacts (230 V AC)
2 neutral changeover contacts
max. contact load: 230 V AC / 2 A
24 V AC / 22 VA for valve control (optionally)
Relay contact data 230 V, 50 Hz, 8 A
Inputs 4 inputs via optic coupler
Contact load: 10 V DC, approx. 8 mA
Ambient Temperature -20 ... +55 °C
Housing DIN plastic housing for wall mounting
- IP54 / IP64 (optionally)
Dimensions W / H / D   :   212 x 184 x 94 mm
Download PDF db Data Sheet
  be Description
Ordering information FS-21 - 230V AC : E1339
FS-21 - 230V AC / 24V DC : E1340