Bürkert 8690 Manuel de démarrage rapide - Page 4

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operating conditions

Warning!

Risk of injury if the pneumatic controller overheats.

Heating above the admissible temperature range can en-

danger people, the unit and the environment.

•

Ensure that the unit is not exposed to direct sunlight or

other heat sources.

Ambient temperature:

Protection class:

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electrical Data

Connections:

1 x M16 x 1.5 cable gland with

screw terminals for cable cross-sections

of 0.14 ... 1.5 mm

SW 22 (clamping range 5 ... 10 mm)

M12 circular plug-in connector 8-pole

Power Supply

Pilot valve:

24 V DC ± 10% residual ripple 10%

Limit switch:

24 V / DC max. 2 A

Proximity switches: 24 V DC max.

100 mA per proximity switch

Power consumption, pilot valve:

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0 to +55°C

IP65 / IP67 to EN 60529

1 W

Pneumatic Data

Control medium:

Quality classes to DIN ISO 8573-1

Dust content class 5: max. particle size 40 μm,

max. particle density 10 mg/m

Water content class 3: max. pressure dew point -20°C

or min. 10°C below the lowest

operating temperature

Oil content class 5:

max. 25 mg/m

Temperature range

of compressed air:

-10 to +50 °C

Pressure range:

3 to 7 bar

Air output, pilot valve: 250I

(QNn value by definition upon

pressure drop from 7 to 6 bar

absolute)

Connections:

Hose plug connector

Ø 6mm / 1/4"

on request:

Socket connector G 1/8

elecTrical insTallaTion

Two kinds of connections are used for the electrical contacting

of the Pneumatic Controller; they are described below.

connecting Terminals for cable

Glands

Danger!

Risk of electric shock!

•

Before reaching into the system, switch off the voltage

and secure to prevent reactivation!

•

Observe applicable accident prevention and safety regula-

tions for electrical equipment!

Procedure:

→

Open the housing by turning the transparent cover anti-

clockwise.

→

Clamp the leads in place (see connection configuration).

/min (for ventilation)

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