Isoprime 100 User Manual

ISOPRIME100 USER’S GUIDE

Isoprime 100 Specifications

General

Brand	Isoprime
Model	100
Category	Measuring Instruments
Language	English

Summary

Instrument Assistance and Support

Explanation of Safety Symbols

Ion Optics Analysis System

The Ion Source Operation

Collector System Details

ESF Collector for Precision Measurements

Vacuum System Components and Function

Electronic Unit Locations and Identification

System Controller Operation

Source High Voltage Supply Details

Turbomolecular Pump and Head Amplifier

Starting and Loading IonVantage

Closing IonVantage and Crash Recovery

IonVantage System Structure and Sample List

Tune Page and Inlet Editor Applications

IonVantage Project Management Principles

Creating a New IonVantage Project

Sample List Operations and Running Samples

Running Samples from the Sample List

Procedure for selecting and running samples from the sample list for analysis.

Sample List Field Definitions and Usage

Editing the Sample List Content and Rows

Setting Sample List Row Number

Adding Samples to the List

Inserting and Deleting Samples

Editing Sample List via Autosampler Plate Layout

Modifying Sample List Display Fields

The Tune Page Interface and Functionality

Pumping System Control Operations

Ion Source Operation and Status Monitoring

Understanding Ion Source Status Indicators

Tune File Management and Usage

Source Parameter Adjustment and Optimization

Mass Spectrometer Tuning Procedure

Coarse Ion Source Tuning Guide for Various Gases

Running and Accepting Peak Centre Scans

Fine Tuning Source Parameters and Notes on Tuning

Optimizing Source Parameters via Scanning

Instrument Linearity Assessment and Improvement

The Map Editor for Acquisition and Display Maps

Running Instrument Scans for Assessment

Setting Up and Saving Peak Centre Scans

Executing and Interpreting Peak Centre Scans

Peak Display Window Usage and Features

Automated Peak Centering in Analysis

Head Amplifier Zeroes: Functions and Adjustment

Electronic and Collector Zeroes Measurement

Beam Zeroes Dialog for Offset Correction

Tune Page Method Creation and Editing

Running Methods from the Tune Page

Acquisition Event Management Overview

Using Peak Jump Events for Tuning Changes

IO Command Event Configuration for Control

Scan Event Implementation in Acquisitions

Function Event for Data Processing Changes

Acquire Map Event Usage During Acquisition

Using Custom Templates for Scan Display

Peak Centre Options and Acceptance in Tune Page

Diagnostics and Security Overview for Instrument PC

IsoPrime100 Diagnostic Tests

PC Security: Remote Control and Anti-Virus

Vacuum System Importance and Measurement

Vacuum Pump Functions and Speed Definition

Rotary Vane Pump Operation and Maintenance

Turbomolecular Pump Principles and Operation

Calculations and Corrections for Isotope Analysis

Enrichment Delta (δ) Calculation

Isotopic Abundance (Atom %) Calculation

Estimating Precision: Standard Deviation and Error

Isotope Corrections for CO2 and Nitrogen Analysis

Nitrogen Enrichment Formulae and Derivation

Carbon Dioxide Correction Example Using Craig Formulae

Nitrogen Isotopic Analysis and Enriched Analysis

Atom Percent Formulae for Various Gases

Nitrogen and Oxygen Isotope Calculations

Routine Maintenance and Required Tools

Emergency Fault Conditions and Instrument Shutdown

Electrical Power Failure Response Procedure

Routine Mass Spectrometer Maintenance and Helium Supply

Helium Supply Failure Protocol

Caution regarding helium flow interruption and potential damage to the mass spectrometer.

Changing Molecular Sieve in Foreline Traps

Mass Spectrometer Repair Guidelines and Precautions

Repair Precautions and Contamination Avoidance

General advice for performing repairs, handling components, and avoiding contamination within the vacuum chamber.

Venting the Mass Spectrometer and Removing the Ion Source

Removing the Source Flange

Procedure for venting the mass spectrometer and removing the source flange.

Removing the Ion Source from its Flange

Replacing the Ion Source onto the Source Flange

Replacing the Source Flange Assembly

Changing the Ion Source Filament

Removing the Old Ion Source Filament

Detailed steps for removing the old filament from the source assembly, referencing part numbers.

Positioning and Securing the New Filament

Attaching Filament Support Assembly to Source

Ion Source Disassembly Procedures and Cautions

Removing Magnet, Filament, and Trap from Source

Source Stack Disassembly and Reassembly

Ion Box Assembly Disassembly Steps

Trap Assembly Dismantling Procedure

Magnet Assembly Dismantling and Reassembly

Folding Photo-Etched Components and Trap Folding

Source Wraparound and Filament Shield Folding

Rebuilding the Ion Box Assembly

Rebuilding the Trap Assembly

Rebuilding the Magnet Assembly

Source Stack Reassembly Procedure

Cleaning Procedures for Source Components

Rough Cleaning Techniques

Using abrasives like Polaris powder or Scotchbrite for removing marks from components.

Pre-Cleaning of Instrument Parts

Final Cleaning and Component Cleaning Guidelines

Electronics Repair and System Controller Removal

Removing the System Controller Unit

Procedure for removing the system controller, the main electronics unit, from the instrument.

Refitting the System Controller Unit

Removing the Bakeout Power Supply Unit

Replacing Bakeout and Electromagnet Power Supplies

Removing and Replacing the Head Amplifier

Refitting the Head Amplifier and Resetting Electronics

Fuse Replacement Procedures for Mains Inlet

Fuse Replacement for System Controller and Bakeout Supply

Electromagnet Power Supply Fuse Replacement

Fault Finding Introduction and Poor Operating Pressure Troubleshooting

Troubleshooting Poor Operating Pressure

Troubleshooting steps for poor operating pressure readings on the Pirani gauge.

Penning Gauge Pressure Issues and High Background Levels

Troubleshooting High Argon Backgrounds

Addressing Dirty Background Scans

Troubleshooting Valve Operation and Peak Shape Issues

Non-Linear Signal Causes and Source Tuning for Linearity

Reference Gas Box and Non-Linearity

Source Tuning for Linearity Improvement

Magnet Positioning and Leak Checking Using Argon