8
Technical Data
See data sheet
Dimensions
in mm
(inch)
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.
9
8
Thread block SW30 (1.18“)
