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The 45APE Series Swichgage instrument is a mechanical gage for pressure indication. It includes two adjustable SPDT switches. These snap-acting switches can be used for start and stop, to trip alarms and to shut down equipment. Ranges are available from 30” VAC (-100 kPa) [-1 bar] thru 10,000 psi (138 MPa) [1379 bar].
The 45APE Series utilizes a bourdon tube sensing unit with a stainless steel dual-sector geared movement. Each of the sectors drives separate pointers when pressure is applied to the bourdon tube. The indicating pointer (visible pointer) shows actual pressure reading, including below and beyond the low and high trip points. The low and high trip points are adjustable independently on the gage front lens. The switch operator pointer (behind the dial) is calibrated to follow the indicating pointer. The low and high trip point indicators arrest the switch operator pointer. As pressure decreases or increases through the principal of lost motion, the respective snap-switch is tripped.
The 45APE Series models are widely used in applications requiring pressure indication and Form C low and high pressure switches.
45B Series Swichgage instrument
For use with 12-32 VDC battery ignition systems; it includes battery ignition type magnetic switch.
45CD Series Swichgage instrument
For use with (CD) capacitor discharge ignitions; it includes CD ignition type magnetic switch.
45M Series Swichgage instrument
For use with magneto type ignitions; it includes magneto ignition type magnetic switch.
45N Series Swichgage instrument
For specific use with 110 VAC Power Sources; it includes 120 VAC type magnetic switch.
|Range||Accuracy (+/-) above & below to trip point only|
|< 100 (except 15 psi)||10|
Reading based on testing performed with switch point at mid scale which represents worst case. Switch accuracy ±1.5%.
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