Safety pressure monitors have been designed to interface into new or existing safety systems where residual pressure must be depleted. The monitors consist of a non-adjustable preset between 3 & 6 psi switchover on depressurization and 15psi switchover on rising pressure.
The pressure monitor incorporates a two-pole positive driven plunger type switch, with positive opening contact pre-approved to category 4 safety applications. A single pressure monitor is suitable for category 2 applications when used in conjunction with another safety function or two independent units are suitable for pressure monitoring in category three or four applications.
Features of Monitored Aluminium Body Safety Pressure Switch - HPS-4A
Main body: Aluminium or Steel
Piston housing: Aluminium
Glide Seal: PTFE
Energizer Seal: Nitrile Rubber
Return spring: Mild Steel Zinc Plated
Piston Housing Seal: Nitrile rubber
Screws: Cap Screws M8X20
Lubricant: Teflon Grease
Switch: Make: Bernstein
Model: C2-U1Z (600.8101.001)
Approvals: En 60947-1, EN 60947-5-1, VDE 0660/100/200
Contacts: 1 x N/O, 1 x N/C – Each Monitor
Wiring: Switch Terminals: Normally Closed 11 – 12 White – Black
Normally Open 21 – 22 Brown – blue
Single monitor HPS-4A (Aluminium 210 Bar)
Single monitor HPS-4S (Steel 340 Bar)
Dual monitor HPS42A (Aluminium 210 Bar
Dual monitor HPS42S (Steel 340 Bar)
Specifications of this product
Rating: Protection: IP 65
Approvals: Low Voltage Directive: 73/23/EEC – EN 60204.
EMC Directive: 89/336/EEC – EN 55014, EN 50081-2,
EN 50082-1, EN 50082-2, IEC 1010, IEC 950.
Machinery Directives: 98/37/EC – EN 292-1, EN 292-2, EN 983,
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