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Table of Contents

iii

Table of Contents

Safety Procedures and Precautions ............................................................................................. 1

Chapter One:  General Information............................................................................................. 3

Introduction.................................................................................................................... 3

How This Manual is Organized ..................................................................................... 4

Customer Support .......................................................................................................... 4

Chapter Two:  Installation........................................................................................................... 5

How To Unpack the Type 722 Unit............................................................................... 5

Unpacking Checklist ......................................................................................... 5

Product Location and Requirements .............................................................................. 6

Operating Environmental Requirements........................................................... 6

Dimensions..................................................................................................................... 6

Setup............................................................................................................................... 9

Mounting........................................................................................................... 9

Fittings .............................................................................................................. 10

Making Mechanical Connections ..................................................................... 10

Connectors ........................................................................................................ 11

How to Wire a PDR Series Readout to a Type 722 Transducer with a 9-
pin Type “D” Connector. .................................................................................. 13

Electrical Information ....................................................................................... 14

NW-16-KF Fitting Information......................................................................... 14

Interface Cables................................................................................................. 15

Attaching the Terminal Block Connector Cable............................................... 17

How To Check the Transducer Zero.............................................................................. 18

How To Zero the 722 Transducer..................................................................... 18

Span Adjustment ............................................................................................... 19

Chapter Three:  Overview........................................................................................................... 21

General Information....................................................................................................... 21

Sensor............................................................................................................................. 21

Signal Conditioning Electronics .................................................................................... 22

Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com

Summary of Contents for Baratron 722A

Page 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Page 2: ...119475 P1 Rev B 12 00 MKS Baratron Type 722A Absolute Pressure Transducer Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 3: ...rmation storage or retrieval system except as may be expressly permitted in writing by MKS Instruments Inc Baratron is a registered trademark of MKS Instruments Inc Andover MA VCR and VCO are register...

Page 4: ...ting 9 Fittings 10 Making Mechanical Connections 10 Connectors 11 How to Wire a PDR Series Readout to a Type 722 Transducer with a 9 pin Type D Connector 13 Electrical Information 14 NW 16 KF Fitting...

Page 5: ...eshooting 25 General 25 Zero Adjustment 25 Troubleshooting 26 Appendix A Product Specifications 27 Performance Specifications 27 Physical Specifications 27 NW 16 KF Fitting Information 27 Electrical S...

Page 6: ...a Voltage Unit 14 Figure 8 How To Connect the Cable to a Terminal Block Example 1 17 Figure 9 How To Connect the Cable to a Terminal Block Example 2 17 Figure 10 Product Label 22 Tables Table 1 Pinout...

Page 7: ...List of Figures and Tables vi Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 8: ...onnel only USE CAUTION WHEN OPERATING WITH HAZARDOUS MATERIALS If hazardous materials are used users must take responsibility to observe the proper safety precautions completely purge the instrument w...

Page 9: ...nter the unit before or during use Contamination such as dust dirt lint glass chips and metal chips may permanently damage the unit Definitions of WARNING CAUTION and NOTE messages used throughout the...

Page 10: ...able with a selection of options Range 1 Torr through 25 000 Torr 0 2 psia through 500 psia Fittings tube 4 VCR 8 VCR 8 VCO Mini CF and NW 16 KF Connectors 5 pin terminal block 9 pin Type D and 15 pin...

Page 11: ...s for reference in the event the unit malfunctions Appendix A Product Specifications lists the specifications of the instrument Appendix B Model Code Explanation describes the model code Customer Supp...

Page 12: ...the inside of the back cover of this manual for a list of MKS Calibration and Service Centers Caution Only qualified individuals should perform the installation and any user adjustments They must comp...

Page 13: ...ation Dimensions Note All dimensions are listed in inches with millimeters referenced in parentheses The dimensions of the 722 transducer vary depending upon the full scale range Full scale ranges up...

Page 14: ...WG 0 54 13 7 Max 6 00 152 Figure 1 Dimensions of the Low Pressure up to 1000 Torr Type 722 Transducer 0 76 19 2 0 049 1 2 0 50 12 7 Dia Tube 0 86 21 7 NW 16 KF 0 80 20 2 Mini CF Rotatable 1 19 30 1 8...

Page 15: ...e 3 Dimensions of the High Pressure 1000 to 25 000 Torr Type 722 Transducer 1 07 27 1 0 75 19 1 0 049 1 2 0 50 12 7 Dia 1000 Torr 19 3 PSI Max Tube 1 17 29 6 NW 16 KF 1200 Torr 23 2 PSI Max 1 11 28 1...

Page 16: ...hown in Figure 5 Do not install the unit with the cylindrical end of the unit pointing downward because particulate impurities may accumulate on the sensing diaphragm and alter the pressure reading 4...

Page 17: ...refully check all plumbing connections to the instrument to ensure a leak tight installation Making Mechanical Connections To make mechanical connections in line to a system use the recommended instal...

Page 18: ...n Assignment 1 Pressure Output 2 No Connection 3 No Connection 4 Power Input 5 No Connection 6 No Connection 7 No Connection 8 Pressure Return 9 Power Return Table 1 Pinout of the 9 Pin Type D Connect...

Page 19: ...ion 4 No Connection 5 Power Return 6 No Connection 7 Power Input 8 No Connection 9 No Connection 10 No Connection 11 No Connection 12 Pressure Return 13 No Connection 14 No Connection 15 Chassis Table...

Page 20: ...he PDR readout is a CB700 2 cable This cable has the mating Type D connector on the transducer end and flying leads on the PDR end Table 4 lists the pin assignments for the various colored wires on th...

Page 21: ...0 to 10 V Pressure Output Pressure Return Power Return 10K Note 2 The absolute value of the potential difference between the chassis ground and signal common power ground should not exceed 14 Volts No...

Page 22: ...k specifications 2 To order braided shielded cables add an S after the cable type designation For example to order a standard connection cable to connect the 722 transducer to a Type PDR C 1 readout u...

Page 23: ...th ends it is important at each such end to ground the shield before the wires exit Make this ground with absolute minimum length Refer to Figures 8 and 9 page 17 A inch piece of 22 wire may be undesi...

Page 24: ...Making Firm Contact To Braid Braid Here Is Desirable but not usually necessary Keep Wires and Braid Flat Against Case Metal Cable Clamp Screw Split Lock Washer External Tooth Lock Washer Transducer H...

Page 25: ...Zeroing a transducer at a pressure above its stated minimum resolution creates a zero offset relative to true absolute pressure All subsequent readings are then linear and accurate relative to the of...

Page 26: ...x 10 3 psia 500 psia 2 x 10 2 psia Table 6 Highest Pressure for Proper Zero Adjustment Span Adjustment The span setting may require adjustment periodically Only adjust the SPAN pot in conjunction wit...

Page 27: ...How To Check the Transducer Zero Chapter Two Installation 20 This page intentionally left blank Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 28: ...amber is a metal diaphragm The front side of the diaphragm is exposed to the gas whose pressure is to be measured The back or reference side of the diaphragm faces a rigidly mounted ceramic disc conta...

Page 29: ...board construction uses surface mount technology The output is either a DC voltage or mA current which is linear with pressure The transducer is then calibrated against a transfer standard to provide...

Page 30: ...ontrol The pressures listed in the last column of Table 7 are for reference and represent the pressure reading of the transducer at 50 mV signal output A DC signal of at least 50 mV is the recommended...

Page 31: ...General Chapter Four Operation 24 This page intentionally left blank Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 32: ...ument Proper handling is essential when working with all highly sensitive precision electronic instruments In production operations verify the transducer zero and adjust if necessary each time the equ...

Page 33: ...if necessary Measurement slowly goes positive over time Overpressure and or a build up of contamination in the Px cavity Return to MKS for servicing or transducer replacement Unstable zero output The...

Page 34: ...ater Fittings inch Tube 4 VCR female 8 VCR female 8 VCO female NW 16 KF Mini CF Full Scale Pressure Ranges 1 Torr through 25 000 Torr 0 02 psia through 500 psia Material Exposed to Gas Inconel SST wit...

Page 35: ...r for the overpressure ring is HPS 10031 Electrical Specifications Input Required 0 to 5 Volt output 0 to 10 Volt output 10 8 VDC to 32 VDC regulated if below 13 VDC 10 mA max 13 VDC to 32 VDC 10 mA m...

Page 36: ...he model code when you order the unit The model code is identified as follows 722AXXXYYZF where Type Number Full Scale Range Fittings Accuracy Connectors Z F XXX YY 722A Input Output Type Number 722A...

Page 37: ...ude a fitting Fittings YY Six types of fittings are available designated by a two letter code Ordering Code 4 VCR Type Female CD tube weld stub BA 8 VCR Type Female CE 8 VCO Type Female DA Mini CF rot...

Page 38: ...e an HPS overpressure ring Operating the unit without a protective overpressure ring may result in injury The HPS part number for the overpressure ring is HPS 10031 Accuracy F The accuracy 0 5 of Read...

Page 39: ...NW 16 KF Fitting Information Appendix B Model Code Explanation 32 This page intentionally left blank Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 40: ...del code 29 Mounting 9 O Options 3 Orientation 9 18 P Pinout 15 pin Type D 11 5 pin terminal block 11 9 pin Type 11 Power 30 Pressure limit 27 Pressure lowest for control 23 Pressure lowest reading 23...

Page 41: ...Index 34 Z Zero 18 Zero adjustment 25 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 42: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

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