45APE

Image: 
  • Combination Indicating Gage with Independent Low and High Snap-Acting Switches
  • Field-Adjustable and Highly Visible Low and High Pressure Trip Point Indicators
  • Dual-Sector Geared Movement Allows for Full-Scale Indication and Set Point Control
  • Panel and Surface Mount Versions Available
  • Latching Control Relay Versions Available
Product Overview: 

Description

The 45APE Series Swichgage instrument is a mechanical gage for pressure indication. It includes 2 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].

Basic Operation

The 45APE Series utilizes a bourdon tube sensing unit with a stainless steel dual-sector geared movement. Each of the sectors drive 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, and as pressure decreases or increases, through “the principal of lost motion” the respective snap-switch is tripped.

Basic Models

45APE Series Swichgage instrument: Surface mount (square case) version.
45APEF Series Swichgage instrument: Panel mount (round case) version.
45APEBP Latching Control Relay Series: These models have a latching control relay for automatic ON/OFF control. They are designed to start and stop electric motor driven equipment.
45APEE and 45APEBPE: These models (square case) have the same features as the 45APE/45APEBP, but suitable for panel mounting.

Applications

The 45APE Series models are widely used in applications requiring pressure indication and Form “C” low and high pressure switches.