Edwards APG100 User Manual

D026-01-840
Issue B
Instruction Sheet
APG100 Replacement Tube and Electronic Housing Calibrating
Instructions
1Introduction
This manual provides the calibration instructions for an APG100. These instructions should be followed whenever a
replacement tube or replacement electronics housing is fitted. The replacement tube is supplied inside an empty
housing for protection during transit. Please discard this housing before use.
1.1 Replace the gauge tube or electronics housing
Referring to Figure 1:
1. Unplug the electrical cable, vent the vacuum system to atmosphere pressure and remove the gauge from the
vacuum system.
2. Pull the retaining clip from side of gauge.
3. Pull the tube from the electronics housing.
4. Fit the replacement tube into electronics housing, noting the correct alignment.
5. Refit the retaining clip.
Whenever a new tube or electronics housing is fitted it is necessary to adjust the gauge at atmosphere and at vacuum
as described below.
Figure 1 - Replacement of gauge tube
1. Electronic housing
2. Retaining clip
3. Gauge tube
IA/017/12/08

Edwards APG100 Specifications

General

Brand	Edwards
Model	APG100
Category	Measuring Instruments
Language	English

Summary

Introduction

Replace Gauge Tube or Electronics Housing

Steps for replacing the APG100 gauge tube or electronics housing, including initial unplugging and final clip refitting.

Atmosphere Adjustment Procedure

Calibrating the APG100 at atmospheric pressure by pressing the CAL button and allowing operation for 10 minutes.

Vacuum Adjustment Procedure

Adjusting the APG100 under vacuum conditions, requiring system pressure reduction and CAL button activation.

Storage and Disposal Guidance

Information on proper storage and disposal of the APG100, directing users to the product manual and HS2 form.