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DesignFlex  PSF100A Series
The ONLY Shock and Vibration Resistant Switches Available Anywhere
For Sensing Pressure, Vacuum and Differential Pressure
PSF100A pressure switches utilize a patented double diaphragm/contact configuration to protect against false actuation due to shock and vibration.

FEATURES
• Shock and vibration resistance
• Lightweight, miniature size
• Extremely fast response time
• Military approval

 
DesignFlex  PSF100A Series
 
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HOW THE PSF100A WORKS
A.   Normal state, no pressure applied: Both contacts of the double make/double break circuit configuration are open.
 
B.   No pressure applied, subjected to shock or vibration: The contact arms move together in parallel. Since at least one contact is always open, the circuit cannot close in error.
 
C.   Pressure applied: Both contacts are closed completing the circuit.
 
DesignFlex Pressure & Vacuum Switches - PSF100A
 
SPECIFICATIONS  
Mechanical
Standard
Tolerance
±20%
Tighter tolerances available
Switch Type SPST normally open, double-make/double-break
Switching Medium Air; compatible fluids on "High" side
Mechanical Life More than 20 million cycles
Proof Pressure 8 PSI for units where set point is 3.0" H20 or less
15 PSI for units where set point is greater than 3.0" H20
8 PSI for units with Teflon diaphragm
Weight Less than 10 grams
Shock & Vibration At zero pressure, will not make at 50G's shock
Will not make at 10G's, 50 to 2000 Hz vibration
Operating Temp. +40°F to +150°F (standard)
-46°F to +205°F (consult factory)
Physical
Mounting Eyeleted for No. 2 screws
Case Material Polycarbonate standard (other materials are available)
Contact Material 18K Gold inlay
Diaphragm Material Polyurethane standard (Teflon® optional)
Electrical Connections Terminals - .187" x .020" tab-type for use with quick disconnects (ref. AMP 2-520182-2 or equivalent)
Pressure Ports Two .200" diameter barbed ports for use with 1/8" - 3/16" ID tubing
Electrical
Current Rating 40mA resistive for life in excess of 20 million cycles
Operating Voltage AC/DC - 30V or less with resistive load; 120 VAC neon lamp load
For higher loads use SRF 100B solid state relay
 
EXAMPLE DRAWING  

DesignFlex Pressure & Vacuum Switches - PSF100a
 


       
PRESSURE : | Pressure Sensors | Differential Pressure Transmitters | Digital Differential Pressure Gauges | IS Pressure Transmitters  |
 HUMIDITY : | Humidity Sensors | Humidity + Temperature Transmitters | High Temp. Humidity + Temperature Transmitters |Industrial Humidity + Temp. Transmitters | Handheld Instruments Calibration  |
AIR VELOCITY TRANSMITTERS :  | Air velocity Transmitters | Industrial Air velocity Transmitters Airflow Visualiser |
MOISTURE TRANSMITTER :  Moisture in Oil Transmitter | Dewpoint Transmitters | Moisture in Tobacco / Tea Leaf | Moisture in Wood Particles | Moisture in Food Products |
LVDT AND TILT SENSORS :    |  LVDT  |   RVDT  | Tilt Sensors |
DATA LOGGERS  :   Low Cost Humidity and Temp. Loggers  |  Wireless Data Loggers  |  16 Channels Data Loggers |

CO2 SENSORS  :    CO2 Transmitters  |       PRESSURE SWITCHES       |       FORCE SENSORS      |

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