Precision contact systems (Limit value switches)

Available: DN 63 up to double | DN 100 up to 4-fold | DN 160 up to 4-fold

LOW-ACTION-CONTACTS

are used when a high contact load is not required and no vibrations occur.

Technical Data

Nominal operating voltage: max. 250 V
Inrush and breaking current: max. 0,7 A
Switching capacity: 10 W 18 VA
Switching accuracy: approx. 0,5 % of final scale value

SNAP-ACTION-CONTACTS

can be used in almost all operating conditions and are largely insensitive to vibrations.

Technical Data

Nominal operating voltage: max. 250 V
Inrush and breaking current: max. 1,0 A
Switching capacity: 30 W 50 VA
Switching accuracy: ca. 2-5 % vom Skalenendwert

INDUCTIVE-CONTACTS

are equipped with non-contact NAMUR slotted proximity switches. They are particularly suitable for oil-filled measuring instruments and can be used in potentially explosive areas when using Ex-certified isolating amplifiers.

Technical Data

Nominal voltage: 8 V DC
Switching accuracy: approx. 0,5 % of final scale value

ELECTRONIC-CONTACTS

are equipped with non touching proximity switches. They should be preferable used with oil filled measuring instruments, for operating under low voltages and for small DC-loads, eg. for direct connection to a PLC.

Technical Data

Operating voltage: 10-30 V DC
Breaking capacity: below 100mA
Switching precision: approx. 0,5% of final scale value

PNEUMATIC-CONTACTS

are equipped with pneumatic proximity switches. They are used where air is already being used and/or no electric current is available.

Technical Data

Operating pressure: 1,4 bar
Admission pressure: approx. 0,1 bar
Outlet pressure: approx. 30 mbar Internal air consumption: approx. 30l/h

LIMIT VALUE SWITCHES in a modular system

All the above-mentioned contacts can also be supplied in a modular system. In order to simplify the assembly, a mounting unit has been created which can be mounted on any measuring device in a few minutes. This unit consists of a transparent cover, adjustment lock, cable gland or plug connection and a special contact with plug-in foot and fork coupling.

Versions

Standard with PG cable gland or oil-tight with plug and cable, completely mounted and wired.
Available in DN 100, DN 4 ½ “, DN 6”, DN 160