THEORY:
The oil pump systems are generally equipped with a traditional pressure switch which is used to drive or control the operation of pressure-driven machines, such as Plastic Injection Molding Machine. To set up the operational pressure points of the traditional pressure switch, an additional pressure gauge is used to indicate the required pressure, the adjusting process is very inconvenient and further more, the Pressure Switch itself is not accurate as well.  Accordingly, to improve the situation like this, WEIBROCK contact device manufacturer in Germany develops a whole new set of 3” contact device to replace the traditional pressure switches and provide a safer working condition other than the traditional ones.

FEATURES :
Mounting : Bottom(A) and Bottom with Flange (B)
Type : Pressure Gauge, Vacuum Gauge, Compound Gauge.
Dial Size : 75mm
Case : Chrome-Plated Steel Case.
Lens : Acrylic Lens.
Pointer : Alluminium
Tubing : Brass or Stainless Steel AISI 316
Movements : Stainless Steel AISI 304
Connection : Brass or Stainless Steel 304/316 ¼ “ NPT, PT, PF
Cable Connection : Plastic
Contact Type : High Contact (A) and Low Contact (B)
Contact Type : Single and Double Contact (S) Accuracy :
Accuracy : ± 1.5% FS
Scale : Dual Scale kg/cm²/PSI and BAR/PSI

TECHNICAL DATA :
Permanent Current: 0.6A max
Switching Capacity: 30w = 50 VA Max
Contact Pin Material: Ag 80 Ni 20
Ambient Temperature: -20˚c to 70˚c
Operating Voltage: 250 V max
Making Current: 1.0 A max
Breaking Current: 1.0 A max