Agilent Ion Chamber Replacement for VS Series Leak Detector Field Installation Instructions

About this manual

This document provides field installation instructions for replacing the ion chamber in Varian (now Agilent) VS Series Leak Detectors. It includes critical safety information regarding solvents, static electricity, and vacuum handling before beginning the replacement process.

The guide details the specific tools required, such as Allen wrenches and a torque wrench, and outlines a step-by-step procedure to remove the rear cover, disconnect cables, and replace the internal components including the metal gasket and ion support assembly.

What's inside

• Hazard and Safety Information
• Solvents
• Vacuum Equipment and Cleanliness
• O-ring Care
• Metal Seal Care
• Equipment Required
• Installation Procedure

Frequently asked questions

What solvents are recommended for cleaning the leak detector?

Varian recommends VacuSolv solvent, isopropyl alcohol (IPA), or Dow Corning OS-20.

What tools are required for the ion chamber replacement?

Required tools include an extended length M5 Allen wrench, metric Allen wrench set, needle nose pliers, screwdrivers, a torque wrench adjustable to 45 and 90 in-lbs, and a digital multimeter.

How long must you wait after turning off the power before starting work?

You must wait 30 seconds for the high voltage to dissipate.