Metso Neles Quartz LIMIT SWITCH, Installation Maintenance And Operating Instructions

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6 7 QZ 70 en
3 ADJUSTING
3.1 Touch & Tune™ switch setting
Notes: All adjustments assume you are looking down on
the top of the sensors. The edge of the cam metal strip
will be at the edge of the sensor target when activation
occurs. When the cam is released be sure it slides fully
onto the spline. One spline tooth setting is 4 1/2°.
Types 33, 93, 96, 97
I. For Normally Open function, Fig. 4
1. With the valve in the "Closed" position and if the
valve turns counter-clockwise to open, set both
cams so that the metal activation strips are 180°
from each other with the bottom cam set in the mid-
dle of the sensor target.
2. Lift the bottom cam and turn counter-clockwise until
the red LED goes "out" then clockwise again until the
red LED just comes "on". Reverse the direction of
the cam if the valve opens clockwise. (2* in Fig. 3).
3. Move the valve to the opposite position (Open),
push down on the top cam and rotate counter-clock-
wise until the green LED just comes "on". Reverse
the direction of the cam if the valve opens clockwise.
(3* in Fig. 3).
For the normally open operation, both LEDs will be off
during the actuation period. If the optional green
"Closed" visual indicator is used the colors would be
reversed in I and II.
II For Normally Closed function, Fig. 5
1. With the valve in the closed position, set both cams so
that the metal activation strips are aligned with each
other and set in the middle of the sensor targets.
2. If the valve turns counter-clockwise to open, pull up
on the bottom cam and rotate clockwise until the red
LED goes "out". If the valve turns clockwise to open,
rotate bottom cam counter-clockwise until it goes
out. (2** in Fig. 3).
3. Operate the valve to the opposite position (Open).
Push down on the top cam. If the green LED is "off",
rotate top cam clockwise until it comes "on". When
the green LED is "on" turn cam counter-clockwise
until the green LED just goes "off". (3** in Fig. 3).
For the normally closed operation, both the red and
green LEDs will be illuminated during the actuation
period. The red LED is off in the “Closed” position and
the green LED is off in the “Open” position. If the
optional green "Closed" visual indicator is used the col-
ors would be reversed in I and II.
Type X
I. For Normally Open Function, Fig. 6
1. With the valve in the "Closed" position and if the
valve turns counter-clockwise to open, set both
cams so that the metal activation strips are 180°
from each other with the bottom cam set in the mid-
dle of the sensor target.
2. Lift the bottom cam and turn counter-clockwise until
the red LED goes "out" then clockwise again until the
red LED just comes "on". (Reverse the direction of
the cam if the valve opens clockwise.)
3. Move the valve to the opposite position (Open),
push down on the top cam and rotate counter-clock-
wise until the green LED just comes "on". (Reverse
the direction of the cam if the valve opens clock-
wise.)
For the normally open operation, both LEDs will be off
during the actuation period. If the optional green
"Closed" visual indicator is used the colors would be
reversed in I and II.
Fig. 4 Cams set for Normally Open function
Fig. 5 Cams set for Normally Closed function
Fig. 6 Cams Set for Normally Open Sensor Function