Samson EB 3773 Series, Mounting And Operating Instructions

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EB 3773 EN 6-1
Start-up
6 Start-up
The work described in this section is only to
be performed by personnel appropriately
qualified to carry out such tasks.
Risk of fatal injury due to the ignition of an
explosive atmosphere.
Î
For mounting and electrical installation in
hazardous areas, observe the explosion
protection approvals as well as the
relevant electrotechnical regulations and
the accident prevention regulations that
apply in the country of use. EN 60079-
14 applies in Europe: Electrical
installations design, selection and
erection
Î
Installation, operation or maintenance of
the limit switch must only be performed
by personnel who has undergone special
training or instructions or who is
authorized to work on explosion-
protected devices in hazardous areas.
Risk of fatal injury as a result of electro-
static discharge at the housing.
Î
Ensure that the device, cables and other
plant components cannot rub against
each other.
6.1 Adjusting the limit contacts
The Type 3773 Limit Switch is fitted with two
inductive proximity switches or two electric
microswitches (depending on the version).
For most applications the contacts are adjust-
ed to issue a signal when the actuator has
reached one of its end positions. Two adjust-
ment screws (3) are used to continuously ad-
just the switching point to any position within
the angle of rotation (0 to 100°) to signalize
an intermediate position.
Î
Adjust the switching point as shown in
Fig. 6-1.
1
2
1 Adjustment screw for switching point 1
2 Adjustment screw for switching point 2
Fig. 6-1: Adjusting the switching point
DANGER !
DANGER !