Barksdale 9000 Series Instruções de utilização - Página 5

Procurar online ou descarregar pdf Instruções de utilização para Interruptor Barksdale 9000 Series. Barksdale 9000 Series 5 páginas. Compact pressure piston switches

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Technical Data

See data sheet

Dimensions

in mm (inch)

Thread block SW30 (1.18")

Fig. 8:

Compact pressure switch type Series 9000, standard model

IMPORTANT

The standard G1/4" female thread can be mounted directly on the pipe connection. The mounting

with a screw-wrench (SW30 (width across flats 1.18") only on the thread block (see Fig. 8).

The electrical plug PL1 are included in the delivery.

Torque on the thread block: max. 30 Nm (22 ft lb(f))

Adjustable ranges

Fig. 9:

Pressure ranges

Electrical Ratings Silver Contacts

Fig. 10:

Electrical ratings

IMPORTANT

We recommend to use a prefuse of the maximum current rating from the table above according to the

load switched.

Operating life time

Normal expected service life (expressed in the number of cycles over the full adjustment range) is

appr. 1 million for the pressure switch. This may be extended to 2.5 million cycles max. if only a

part of the adjustment range is used (about 20%).

Switch sensor life may also be effected negatively by:



Media not compatible with the wetted materials.



Rapid pressure changes in the system, or in case of diaphragm switches >30 cycles/minute,

in case of piston switches >60 cylces/minute.



System cycling pressure exceeding the top of the adjustable range.

The proof pressure must never be exceeded, otherwise the switch may be damaged. Careful

selection of the pressure range can have a positive effect on the service life of the switch.