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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. |
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FEATURES |
- Shock and vibration resistance
- Lightweight, miniature size
- Extremely fast response time
- Military approval
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| HOW
THE PSF100A WORKS |
- Normal state, no pressure applied:
Both contacts of the double make/double break circuit
configuration are open
- 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.
- Pressure applied: Both contacts
are closed completing the circuit
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Mechanical |
Physical |
Electrical |
Standard
Tolerance |
±20%
Tighter tolerances available |
Mounting |
Eyeleted
for No. 2 screws |
Current
Rating |
40mA
resistive for life in excess of 20 million cycles |
| Switch
Type |
SPST
normally open, double-make/double-break |
Case
Material |
Polycarbonate
standard (other materials are available) |
Operating
Voltage |
AC/DC
- 30V or less with resistive load; 120 VAC neon lamp load
For higher loads use SRF 100B solid state relay |
| Switching
Medium |
Air;
compatible fluids on "High" side |
Contact
Material |
18K
Gold inlay |
-- |
-- |
| Mechanical
Life |
More
than 20 million cycles |
Diaphragm
Material |
Polyurethane
standard (Teflon® optional) |
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| 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 |
Electrical
Connections |
Terminals
- .187" x .020" tab-type for use with quick disconnects
(ref. AMP 2-520182-2 or equivalent) |
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| Weight |
Less
than 10 grams |
Pressure
Ports |
Two
.200" diameter barbed ports for use with 1/8" - 3/16"
ID tubing |
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| Shock
& Vibration |
At
zero pressure, will not make at 50G's shock
Will not make at 10G's, 50 to 2000 Hz vibration |
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| Operating
Temp. |
+40°F
to +150°F (standard)
-46°F to +205°F (consult factory) |
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