Model 5PS Intrinsic
Solon Model 5PS Intrinsic SF6 Gas Density Switch
Intrinsic Design
The series 5PS density switches are rugged temperature compensated pressure switches designed for use on:
- High Voltage Circuit Breakers.
- Gas Insulated Substations.
- Gas Insulated Bus Systems.
Bi-metal components provide the temperature compensation to the switching mechanism over a wide temperature range. This temperature compensation feature allows the pressure switch to ignore pressure changes of the gas due to changing temperature and operate only when a loss of gas is detected indicating a change in density. The switching mechanism is located on a rugged cast aluminum body. The unit has relatively few moving parts which adds to its accuracy and reliability. The mechanism assembly can operate one or two full size SPDT electric switches. All intrinsic temperature compensated switches must be mounted so that they change temperature at approximately the same rate as the gas. All density switches are manufactured to customer specifications. Once installed, they require no maintenance or field calibration. Each device is factory tested at several temperatures that always include -40°F.
Constant refinement of design and components allows Solon to quickly develop new model variations to meet customer's changing specifications.
SPECIFICATIONS
Switching: 1 or 2 SPDT snap acting switches
Electrical Connection: Screw terminals standard, Pre-wired with 18" leads available
Switch Contact Ratings: 15A; 125, 480 VAC / 6A res.; 28 VDC std.
Setpoint Adjustment: Factory set per customer specifications
Temperature Range: -60°F to 160°F Ambient Standard
Accuracy (Standard): ±1.5 PSI at 70°F, ± 3 PSI at temperatures of 140°F to -40°F, Higher accuracy devices are available
Deadband (Switch Differential): Fixed; 1-6 PSI Typical (per Cust. requirements)
Pressure Sensing Element: Phosphor Bronze or Stainless Steel Bellows - 100% leak inspected with Helium mass spectrometry to 6 X 10 cc/sec.
Pressure Adjustment Range: Phosphor Bronze Bellows: 5-100 PSI; 150 PSI max., Stainless Stl. Bellows: 5-100 PSI; 300 PSI max., 150-500 PSI; 1000 PSI max.
Pressure Port: 1/4 NPTF or 7/16-20 SAE are standard; Other port options are available.
Enclosure (optional): NEMA 4 design, Base Material Cast Aluminum, Cover Material Cast Aluminum
Weight: Approximately 3 lbs (1.4 kg).
