Flow Switch Version Vhs - SIKA VH Série Notice D'utilisation

Adjusting the switching unit
6.3 Flow switch version VHS... , VKS... und VK3...
 In order to adjust the switching unit, open the cover of the switching head ( Fig. 17)
(not required for VK3...)
hier öffnen
to open here
ouvrir ici
 Subsequently loosen the locking screw (2.5 hexa-
gon socket screw for the brass and stainless steel
version or recessed head screw for the plastic
version) and position the switching unit until the
red or white arrow are visible at the entry of the
switching contact guide for a desired make contact
( Fig. 18) or break contact ( Fig. 19) respec-
tively.
 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.
 Close the cover until it locks into place (not required for VK3...).
Adjustment of the switching unit is not required if a desired ex works switching point setting
has been agreed with the customer.
IMPORTANT! Observe during fine adjustment.
Fine adjustment is not possible with the VHS06..., VHS07..., VKS06..., VKS07..., VK306...
and VK307... versions.
You can only change the contact type by moving the switch unit.
- 34 -
hier öffnen
to open here
ouvrir ici
Fig.17
Normally open contact (red arrow)
locking screw
Normally closed contact
(white arrow)
locking screw
© SIKA • Ea3000_FlowSwitch • 02/2014
VH... / VK...
higher flow
lower flow
set point range
red
white
Fig. 18
higher flow
lower flow
set point range
red
white
Fig. 19