Flow Switch Version Vh3; Maintenance And Cleaning - SIKA VH Série Notice D'utilisation

VH... / VK...

6.4 Flow switch version VH3...

 Loosen the locking screw in order to adjust the
switching unit (1.5 mm hexagon socket screw).
 Subsequently position the switching unit until the
red ( Fig. 20) or the blue arrow ( Fig. 21) are
visible at the entry of the switching unit guide for
a desired make or break contact respectively (not
required for change-over contact).
 The fine adjustment of the switching point can be
carried out on the basis of the arrow length:
Movement towards the arrow head: Switching
point is set to lower flow rate.
Movement towards the arrow tail: Switching point
is set to higher flow rate.
 Carefully retighten the locking screw.
 We recommend you to use lacquer/threadlocker
to secure the locking screw of the switching unit
after carrying out individual adjustments.
Adjustment of the switching unit is not required if a
desired ex works switching point setting has been
agreed with the customer.
7

Maintenance and Cleaning

Maintenance:
The VH... / VK... is maintenance-free and cannot be repaired by the user. In case of a defect,
the device must be replaced or sent back the manufacturer for repair.
CAUTION! Material damage!
When opening the device, critical parts or components can be damaged.
 Open the device carefully (not required for VK3...).
Cleaning:
Clean the VH... / VK... with a dry or slightly damp lint-free cloth. Do not use sharp objects or
aggressive agents for cleaning
Technical changes reserved
Maintenance and Cleaning
Normally open contact (red arrow)
higher flow
lower flow
set point range
locking screw
Fig. 20
Normally closed contact (blue arrow)
higher flow
lower flow
set point range
locking screw
Fig. 21
blue
brown
blue
brown
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