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MKS Baratron 626A - User Manual

MKS Baratron 626A
55 pages
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114492-P1
Rev F, 10/98
Instruction Manual
MKS Baratron
®
Type
622A/626A/627A/628A/629A
Absolute Pressure Transducers
Six Shattuck Road
Andover, MA 01810-2449
(800) 227-8766 or (978) 975-2350
Fax: (978) 975-0093
E-mail: mks@mksinst.com
Web site: http://www.mksinst.com

Table of Contents

Questions and Answers

  • S
    Stacy StevensonAug 8, 2025
    What to do if MKS Baratron 626A shows overrange signal?
    • M
      Michael KingAug 8, 2025
      If your MKS Transducer shows an overrange positive or negative signal, it might be due to a shorted transducer or a damaged cable connecting the transducer to the electronics module. Check the supply voltages at the terminal block. Carefully examine the cable and transducer for any signs of damage. If you find any issues, replace the affected components.
  • T
    Tommy PooleAug 17, 2025
    Why MKS Baratron 626A Transducer has unstable zero output?
    • A
      andersonwesleyAug 18, 2025
      An unstable zero output in your MKS Transducer might be caused by ambient temperature issues. The temperature may be too high, or it may be varying too much. Make sure the ambient temperature is within the product requirements as specified in Appendix A: Product Specifications, page 41.
  • S
    Sean WilsonAug 29, 2025
    What to do if MKS Baratron 626A measurement slowly goes positive?
    • A
      Ashley JonesAug 29, 2025
      If the measurement from your MKS Transducer slowly increases over time, it could be due to overpressure or contamination buildup in the P x cavity. You should return the transducer to MKS for servicing or replacement.

Summary

Warranty

Pressure Transducer Safety Information

Safety Procedures and Precautions

Chapter One: General Information

Introduction

Overview of MKS Baratron Type 622-629 Absolute Pressure Transducers.

Chapter Two: Installation

Setup

Instructions for mounting, checking transducer zero, and coarse zero adjustment.

Chapter Four: Operation

How to Use the External Zero on the Type 629 Unit

Procedure for using pin 7 for external zero adjustment or rejecting common-mode voltages.

Chapter Five: Maintenance and Troubleshooting

Troubleshooting Chart

Common symptoms, possible causes, and solutions for transducer issues.

Appendix A: Product Specifications

MKS Types 622 and 626 Units

Detailed specifications for unheated MKS Types 622 and 626 transducers.

MKS Type 627 and 629 Units

Detailed specifications for temperature-controlled MKS Types 627 and 629 transducers.

MKS Type 627 and 629 50 mTorr Units

Specific specifications for 50 mTorr versions of MKS Types 627 and 629.

MKS Type 628 Units

Detailed specifications for temperature-controlled MKS Type 628 transducers.

MKS Baratron 626A Specifications

General IconGeneral
BrandMKS
ModelBaratron 626A
CategoryTransducer
LanguageEnglish

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