MKS Baratron 722A Скачать руководство пользователя страница 32 | Manualshive

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MKS Baratron 722A Скачать руководство пользователя страница 32

Chapter Five: Maintenance and Troubleshooting

General

25

Chapter Five: Maintenance and Troubleshooting

General

In general, no maintenance is required other than proper installation and operation, and an
occasional zero adjustment. If a transducer fails to operate properly upon receipt, check for
shipping damage, and check the power/signal cable for correct continuity. Any damage should
be reported to the carrier and MKS Instruments immediately. If there is no obvious damage and
the continuity is correct, obtain an ERA Number (Equipment Return Authorization Number)
before returning the unit to MKS Instruments for service.

Caution

Only qualified individuals should perform the installation and any
user adjustments. They must comply with all the necessary ESD and
handling precautions while installing and adjusting the instrument.
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
equipment is shut down for routine maintenance.

Periodically check for wear on the cables and inspect the enclosure for visible signs of damage.

Note

The zero adjustment is the

only

adjustment that should usually be made

in the field. Only adjust the span setting if you have access to proper
calibration standards. Return the transducer to MKS Instruments for
other adjustments, calibration, or servicing.

Zero Adjustment

All pressure transducers require initial and periodic zero adjustments. Make these adjustments at
a pressure

lower than

the transducer’s minimum resolution to achieve the full dynamic range

specified for the transducer. Refer to

How To Zero the 722 Transducer,

page 18, for instructions

on adjusting the zero setting.

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

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Содержание Baratron 722A

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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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