Pressure Gauge with Contact Switch (Modular)

Pressure gauges fitted with contact switches

Magnetic Contacts
They can be used under almost all operating conditions and are generally not affected by vibrations.
To close the circuit, the contact pin of the movable contact arm is attracted by a permanent magnet fastened to the supporting arm, immediately before the set value has been reached. The magnet’s retention force ensures that snap-action contacts are more resistant against shock and vibration whilst switching safety is enhanced by the increased contact pressure.

Technical
• Nominal operating voltage: 250V max
• Starting and breaking current: 1,0A max
• Permanent current: 0,6A max
• Breaking capacity: 30W, 50VA max
• Contact material: Ag80/Ni20 (other material upon request)
• Switching precision: approx. 2-5% of final scale value

Inductive Contacts
They are equipped with non touching proximity switches intrinsic safety classified as Eex ib IIC T6 and homologated for zones 1 and 2. This version is offered with PTB certificate of conformity to EN.50014 and EN 50020 optional on request multi-functional relays. Due to their contact free operation, switching precision and long service life, these
contacts are suitable for any industrial application and should preferably be used with oil filled measuring instruments. The output signal is determined by the presence or absence of a control vane moved by the instruments pointer within the electromagnetic field of the proximity switch.

Technical
• Rated voltage: 8 V = (Ri ~ 1KOhm)
• Operating voltage: 5 ~ 25V
• Current consumption:
≥3mA (active face free)
≤1mA (active face covered)
• Switching precision: approx. 0,5% of final scale value

Low Action Contacts
They are used in the absence of high contact loads and vibrations. They are suitable for lower pressures.
The contact is instantaneously released upon touching of the two contact pins. These contacts are not suitable for use in high duty operation, aggressive atmosphere and measuring instruments filled with liquids.

Technical
• Nominal operating voltage: 250 V max
• Starting and breaking current: 0,7 A max
• Permanent current: 0,6A max
• Breaking capacity: 10 W 18 VA max
• Switching precision: approx. 0,5% of final scale value
• Contact material: Ag80 / Ni20 (other material upon request)