Guide:
Installing and Adjusting the Flow Switch
FLOW DETECTOR - FLOW SWITCH
Wherever HIDRION SAL is installed and there is a possibility of the cell being switched on
without water running through it, we recommend installing an optional accessory (Flow
switch) which automatically stops production when water is not flowing through the cell.
 When the cell is installed in a by-pass to the main pump system, a flow switch
must be used.
1 - Operation and Connection the HIDRION SAL Switchboard
The flow switch detects the flow of water, activates the switch and automatically switches
HIDRION SAL on.
There are two shunted electrical contacts accessible on the outside of the HIDRION SAL
switchboard which are for use with a flow switch (contacts 1 and 3), according to the figures
and diagram below:
1
COM
3
NA
Remove SHUNT
1
Electric wire:
2
2 x 0.75mm
3
___________________________________________________________________________________________________________________
PRODUCED BY HIDROSWIM Lda.
RUA MARTINS BARATA Nº 5E – 1400 – 247 LISBOA - TEL. +351 213 039 020 / FAX +351 213 039 022
(V20120507)
WWW.HIDRION.PT
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NOTE: the flow switch is an optional accessory, and can be supplied separately.
2 – Installation
The flow switch is supplied with a series of paddles, which can be used with different
diameters of pipe:
T 50 x 1”
The flow switch is supplied with a PVC accessory (T 50 x 1”) to be installed (glued) in the
piping before the salt cell, following the flow direction shown on the lid of the flow
switch.
Flow switch
Cut-off
valve
By-pass set-up
___________________________________________________________________________________________________________________
PRODUCED BY HIDROSWIM Lda.
RUA MARTINS BARATA Nº 5E – 1400 – 247 LISBOA - TEL. +351 213 039 020 / FAX +351 213 039 022
(V20120507)
WWW.HIDRION.PT
3
3 – Adjusting the flow switch
The flow switch can be adjusted by turning the screw clockwise to activate the cell at higher
flow rates, or anticlockwise to activate the cell at lower flow rates.
1 - Adjustment screw
2 - Fixing shim
3 - Microswitch protection
NOTE: We recommend setting the screw to MINIMUM SETTING, which means minimum
spring tension and operating flow rate.
OPERATING FLOW RATE:
MINIMUM
SETTINGS
Pipe Diameter
50mm
63mm
Flow increase
43.33l/min
50.00l/min
Flow decrease
31.67l/min
36.67l/min
Once the flow switch has been adjusted, the screw should be secured using the fixing shim.
The user is protected from accidental contact with the parts of the flow switch attached to
electric current, thanks to insulation covering the microswitch.
4 - Technical properties
Maximum operating pressure:
Maximum flow temperature:
Minimum flow temperature:
Maximum ambient temperature:
Connection to pipes:
Adapted for pipes:
Protection:
10 bar
120°C
-30°C
55°C
1”
from 1” to 8”
IP 54
___________________________________________________________________________________________________________________
PRODUCED BY HIDROSWIM Lda.
RUA MARTINS BARATA Nº 5E – 1400 – 247 LISBOA - TEL. +351 213 039 020 / FAX +351 213 039 022
(V20120507)
WWW.HIDRION.PT
4