Model 6PS Bulb
Solon Model 6PS SF6 Gas Density Switch
Bulb Design
Built to Customer Specifications
Temperatures range -40°F to 140°F
Up to four SPDT Snap Acting Switches
Remote Temperature Sensor
The series 6PS density switches are rugged
temperature compensated pressure switches designed
for use on:
High Voltage Circuit Breakers,
Gas Insulated Substations,
Gas Insulated Bus Systems.
A remote bulb at the end of a capillary tube leading to
the body where the switching mechanism is located
senses the temperature of the gas. The 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. This assembly can be installed in a convenient
location as temperature surrounding the assembly
does not affect the operation of the switch. The
mechanism assembly can operate two, three or four
full size SPDT electric switches. A cast aluminum cover
may be provided to protect the mechanism and switch
terminals.
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
-40F. Solon has evolved the design of components
used in these switches that can be combined to meet
customer's requirements. This allows Solon to quickly
develop new model variations to meet customer's
changing specifications.
SPECIFICATIONS
Switching: 2, 3, or 4 S.P.D.T. 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: -40°F to 140°F Ambient Standard
0°F to 180°F Available
Accuracy (Standard):±1.5 PSI at 70°F, ±3 PSI at temperature extremes 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
9 X 10 cc/sec.
Pressure Adjustment Range: Phosphor Bronze Bellows: 5-100 PSI; 150 PSI max.
Stainless Steel. 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 1 design,
Base material 356 cast aluminum,
Cover material cast aluminum
Weight: Approximately 3 lbs (1.4 kg).
