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Burkert Type 8690 User Manual

Page 28

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28

Electrical installation

9.1.1. adjustment of the proximity

switches

DangEr!

risk of electric shock!
• Before reaching into the system, switch off the power supply

and secure to prevent reactivation!

• Observe applicable accident prevention and safety regulations

for electrical equipment!

Screw for adjustment of the upper
proximity switch

Screw for adjustment of the lower

proximity switch

adjustment of the prox-
imity switches
upwards

downwards

turn screw
clockwise

turn screw
anticlockwise

Fig. 20: Adjustment of the proximity switches

procedure:

Open the Pneumatic Control Unit: unscrewing the transparent
cap in an anticlockwise direction.

Adjust the the proximity switches via the adjusting screw(s) (see
“Fig. 20”).

Check the switching point(s) using suitable measuring
equipment.

Check that the seal is correctly positioned in the transparent cap
(see “Fig. 21”).

Seal
transparent cap

Transparent
cap

Fig. 21: Position of the seal in the transparent cap

noTE!

damage or malfunction due to penetration of dirt and
humidity!
• To observe protection class IP65 / IP67, screw the transparent

cap in all the way.

Close the transparent cap (assembly tool: 674077

6)

).

6)

The assembly tool (674077) is available from your Bürkert sales
office.

english

Type 8690 Ex