MKS Baratron 740C Manual

MKS Baratron 740C Manual

Pressure transducers and relay systems
Table of Contents

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1034255-001
REV. B, 3/13
MKS Type 740C/750C/742C/752C
Baratron
Pressure Transducers
and
R7xxC Series Relay Systems

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  • Page 1 1034255-001 REV. B, 3/13 MKS Type 740C/750C/742C/752C  Baratron Pressure Transducers R7xxC Series Relay Systems...
  • Page 2 All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or by any information storage or retrieval system, except as may be expressly permitted in writing by MKS Instruments, Inc.
  • Page 3: Table Of Contents

    Table of Contents Table of Contents Pressure Transducer Safety Information ..................1 Symbols Used in This Instruction Manual ..............1 Symbols Found on the Unit .................... 2 Safety Procedures and Precautions ................. 3 Sicherheitshinweise für den Druckmeßumformer ............... 5 In dieser Betriebsanleitung vorkommende Symbole ............5 Erklärung der am Gerät angebrachten Symbole .............
  • Page 4 Table of Contents Making Welded Connections ................29 Making Mechanical Connections ..............29 Electrical Information for a Current Unit ............30 Electrical Information for a Voltage Unit ............32 Connectors ......................33 Dimensions ........................37 Single Ended Version ..................37 Flow-Through Version ..................
  • Page 5 Table of Contents Electrical Requirements ..................59 Contact Rating ....................60 How To Configure the Trip Points ................. 60 Chapter Six: Maintenance and Troubleshooting ................. 63 General ..........................63 Zero Adjustment ......................63 Troubleshooting ......................64 Appendix A: Product Specifications ................... 65 700 Series Specifications ....................
  • Page 7 List of Figures List of Figures Figure 1: Preferred Method ......................25 Figure 2: Alternate Method To Use When Cable Clamp is Not Available ........ 25 Figure 3: Acceptable Vertical Mounting Positions ..............26 Figure 4: Unacceptable Vertical Mounting Positions (units < 20 psi full scale) ......27 Figure 5: Acceptable Horizontal Mounting Positions ..............
  • Page 9 List of Tables List of Tables Table 1: Definition of Symbols Found on the Unit ................ 2 Tabelle 2: Bedeutung der am Gerät angebrachten Symbole ............6 Tableau 3: Définition des symboles apparaissant sur l'unité ............10 Tabla 4: Definición de los símbolos hallados en la unidad ............14 Table 5: The 7xxC Series Model Selection Guide ................
  • Page 11: Pressure Transducer Safety Information

    Pressure Transducer Safety Information Symbols Used in This Instruction Manual Pressure Transducer Safety Information Symbols Used in This Instruction Manual Definitions of WARNING, CAUTION, and NOTE messages used throughout the manual. Warning The WARNING sign denotes a hazard to personnel. It calls attention to a procedure, practice, condition, or the like, which, if not correctly performed or adhered to, could result in injury to personnel.
  • Page 12: Symbols Found On The Unit

    Symbols Found on the Unit Pressure Transducer Safety Information Symbols Found on the Unit The following table describes symbols that may be found on the unit. Definition of Symbols Found on the Unit P r o t e c t i v e e a r t h ( g r o u n d ) r t h ( g Off (Supply)
  • Page 13: Safety Procedures And Precautions

    DO NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT Do not install substitute parts or perform any unauthorized modification to the instrument. Return the instrument to an MKS Calibration and Service Center for service and repair to ensure that all safety features are maintained.
  • Page 14 Safety Procedures and Precautions Pressure Transducer Safety Information CHECK FOR LEAK-TIGHT FITTINGS Carefully check all vacuum component connections to ensure leak-tight installation. OPERATE AT SAFE INLET PRESSURES Never operate at pressures higher than the rated maximum pressure (refer to the product specifications for the maximum allowable pressure).
  • Page 15: Sicherheitshinweise Für Den Druckmeßumformer

    Sicherheitshinweise für den Druckmeßumformer In dieser Betriebsanleitung vorkommende Symbole Sicherheitshinweise für den Druckmeßumformer In dieser Betriebsanleitung vorkommende Symbole Bedeutung der mit WARNUNG!, VORSICHT! und HINWEIS gekennzeichneten Absätze in dieser Betriebsanleitung. Warnung! Das Symbol WARNUNG! weist auf eine Gefahr für das Bedienpersonal hin.
  • Page 16: Erklärung Der Am Gerät Angebrachten Symbole

    Erklärung der am Gerät angebrachten Symbole Sicherheitshinweise für den Druckmeßumformer Erklärung der am Gerät angebrachten Symbole Nachstehender Tabelle sind die Bedeutungen der Symbole zu entnehmen, die am Gerät angebracht sein können. Bedeutung der am Gerät angebrachten Symbole Ein (Energie) Aus (Energie) Erdanschluß...
  • Page 17: Sicherheitsvorschriften Und Vorsichtsmaßnahmen

    Ersetzen Sie keine Teile mit baugleichen oder ähnlichen Teilen, und nehmen Sie keine eigenmächtigen Änderungen am Gerät vor. Schicken Sie das Gerät zwecks Wartung und Reparatur an den MKS-Kalibrierungs- und -Kundendienst ein. Nur so wird sichergestellt, daß alle Schutzvorrichtungen voll funktionsfähig bleiben.
  • Page 18 Sicherheitsvorschriften und Vorsichtsmaßnahmen Sicherheitshinweise für den Druckmeßumformer Anweisungen zum Installieren der Armaturen! Alle Anschlußstücke und Armaturenteile müssen mit der Gerätespezifikation übereinstimmen, und mit dem geplanten Einsatz des Gerätes kompatibel sein. Der Einbau, insbesondere das Anziehen und Abdichten, muß gemäß den Anweisungen des Herstellers vorgenommen werden. Verbindungen auf Undichtigkeiten prüfen! Überprüfen Sie sorgfältig alle Verbindungen der Vakuumkomponenten auf undichte Stellen.
  • Page 19: Informations Relatives À La Sécurité Pour Le Transducteur De Pression

    Informations relatives à la sécurité pour le Symboles utilisés dans ce manuel d'utilisation transducteur de pression Informations relatives à la sécurité pour le transducteur de pression Symboles utilisés dans ce manuel d'utilisation Définitions des indications AVERTISSEMENT, ATTENTION, et REMARQUE utilisées dans ce manuel.
  • Page 20: Symboles Apparaissant Sur L'unité

    Symboles apparaissant sur l'unité Informations relatives à la sécurité pour le transducteur de pression Symboles apparaissant sur l'unité Le tableau suivant décrit les symboles pouvant apparaître sur l'unité. Définition des symboles apparaissant sur l'unité Marche Terre de protection (sous tension) Arrêt (hors tension) Terre (masse) (masse)
  • Page 21: Mesures De Sécurité Et Précautions

    Ne pas installer des pièces de substitution ou effectuer des modifications non autorisées sur l'appareil. Renvoyer l'appareil à un centre de service et de calibrage MKS pour tout dépannage ou réparation afin de garantir le l'intégrité des dispositifs de sécurité.
  • Page 22 Mesures de sécurité et précautions Informations relatives à la sécurité pour le transducteur de pression VÉRIFICATION DE L'ÉTANCHÉITÉ DES CONNEXIONS Vérifier attentivement toutes les connexions des composants pour le vide afin de garantir l'étanchéité de l'installation. EXPLOITATION AVEC DES PRESSIONS D'ENTRÉE NON DANGEREUSES Ne jamais utiliser des pressions supérieures à...
  • Page 23: Medidas De Seguridad Del Transductor De Presión

    Medidas de seguridad del transductor de presión Símbolos usados en este manual de instrucciones Medidas de seguridad del transductor de presión Símbolos usados en este manual de instrucciones Definiciones de los mensajes de advertencia, precaución y de las notas usados en el manual. Advertencia El símbolo de advertencia indica la posibilidad de que se produzcan daños personales.
  • Page 24: Símbolos Hallados En La Unidad

    Símbolos hallados en la unidad Medidas de seguridad del transductor de presión Símbolos hallados en la unidad La tabla siguiente contiene los símbolos que puede hallar en la unidad. Definición de los símbolos hallados en la unidad Encendido Apagado (alimentación eléctrica) (alimentación eléctrica) Puesta a tierra Protección a tierra...
  • Page 25: Procedimientos Y Precauciones De Seguridad

    No instale piezas que no sean originales ni modifique el instrumento sin autorización. Para asegurar el correcto funcionamiento de todos los dispositivos de seguridad, envíe el instrumento al Centro de servicio y calibración de MKS toda vez que sea necesario repararlo o efectuar tareas de mantenimiento.
  • Page 26 Procedimientos y precauciones de seguridad Medidas de seguridad del transductor de presión USE ACCESORIOS ADECUADOS Y REALICE CORRECTAMENTE LOS PROCEDIMIENTOS DE AJUSTE Todos los accesorios del instrumento deben cumplir las especificaciones del mismo y ser compatibles con el uso que se debe dar al instrumento. Arme y ajuste los accesorios de acuerdo con las instrucciones del fabricante.
  • Page 27: Chapter One: General Information

    Chapter One: General Information Introduction Chapter One: General Information Introduction Note Some Baratron ® products may not be exported to many end user countries without both US and local government export licenses under ECCN 2B230. This manual covers the 7xxC Series Mini Baratron ® pressure transducers designed for standard applications.
  • Page 28: How This Manual Is Organized

    How This Manual is Organized Chapter One: General Information How This Manual is Organized This manual is designed to provide instructions on how to set up and install a 7xxC Series unit. Before installing your 7xxC-Series unit in a system and/or operating it, carefully read and familiarize yourself with all precautionary notes in the Safety Messages and Procedures section at the front of this manual.
  • Page 29: Customer Support

    MKS Calibration and Service Center before shipping. The RMA Number expedites handling and ensures proper servicing of your instrument. Please refer to the inside of the back cover of this manual for a list of MKS Calibration and Service Centers.
  • Page 30 Customer Support Chapter One: General Information This page intentionally left blank.
  • Page 31: Chapter Two: Installation

    If you find any damage, notify your carrier and MKS immediately. If it is necessary to return the unit to MKS, obtain an RMA (Return Material Authorization) Number from the MKS Service Center before shipping.
  • Page 32: Product Location And Requirements

    Product Location and Requirements Chapter Two: Installation Product Location and Requirements  Ambient operating temperature: 0° to 50° C (32° to 122° F) For additional product requirements, refer to Appendix A: Product Specifications, page 65.
  • Page 33: Interface Cables

    January 1, 1997, some products shipped to the European Community must also comply with the Product Safety Directive 92/59/EC and Low Voltage Directive 73/23/EC, which cover general safety practices for design and workmanship. MKS products that meet these requirements are identified by application of the CE Mark.
  • Page 34: Generic Shielded Cable Description

    EMI/RFI noise. Generic Shielded Cable Description MKS offers a full line of cables for all MKS equipment. Should you choose to manufacture your own cables, follow the guidelines listed below: 1. The cable must have an overall metal braided shield, covering all wires. Neither aluminum foil nor spiral shielding will be as effective;...
  • Page 35: Figure 1: Preferred Method

    Chapter Two: Installation Interface Cables Example 1: Preferred Method To Connect Cable (shown on a transducer) Metal Cable Clamp Screw Transducer Split Lock Washer Overall Insulation External Tooth Lock Washer (if present) Bare Metal Cable Clamp Transducer Housing Making Firm Contact To Braid Braid Here Is Desirable Optional Plastic or Metal Cable (but not usually necessary)
  • Page 36: Setup

    Setup Chapter Two: Installation Setup Mounting the Unit The 7xxC Series unit can be mounted with the cylindrical end in either a vertical or horizontal position. The mounting requirements allow any foreign matter entering the pressure port to fall away from the sensing diaphragm. Mounting the Unit in a Vertical Position Mount a unit with high full scale pressure (greater than or equal to 20 psi) in any position vertically.
  • Page 37: Figure 4: Unacceptable Vertical Mounting Positions (Units < 20 Psi Full Scale)

    Chapter Two: Installation Setup   Single-Ended Low Pressure Units ( 1200 Torr) Flow-Through Low Pressure Units ( 1200 Torr) Figure 4: Unacceptable Vertical Mounting Positions (units < 20 psi full scale) Mounting the Unit in a Horizontal Position In a horizontal position, the cylindrical end of the unit can point in any direction. In addition, with the flow-through design, the fittings can be positioned to accommodate either a vertical or horizontal flow.
  • Page 38: Fittings

    * Other configurations are available on request. Minimum quantities may be required. ** Up to 1200 Torr only Table 7: Fittings Available 1. MKS does not warranty the 7xxC Series transducers when single Caution or double metal ferrule compression-type vacuum fittings are used because damage will occur to the transducer when improper tightening procedures are followed.
  • Page 39: Making Welded Connections

    Chapter Two: Installation Setup Making Welded Connections To weld a transducer in line to a system, you should follow certified welding practices, such as those published by the American Welding Society (AWS) or the American Society of Mechanical Engineers (ASME). Warning Improper welding can cause personal injury or damage equipment.
  • Page 40: Electrical Information For A Current Unit

    Setup Chapter Two: Installation Electrical Information for a Current Unit The 7xxC Series transducers with 4 to 20 mA output require an external power source capable of supplying the voltages listed in Appendix A: Product Specifications, page 65. Figure 8 shows the electrical information for a 4 to 20 mA unit.
  • Page 41: Figure 8: Electrical Scheme For The 4 To 20 Ma Unit

    Chapter Two: Installation Setup If the unit is considerably out of calibration, the zero and span adjustments Note could interact slightly. It may take more than one calibration cycle to accurately complete the adjustments. Always recheck the zero calibration after adjusting the span. Refer to Span Adjustment, page 44, for more information.
  • Page 42: Electrical Information For A Voltage Unit

    Setup Chapter Two: Installation Electrical Information for a Voltage Unit The 7xxC-series transducers require an external power source capable of supplying the voltages listed in Appendix A: Product Specifications, page 65. Noise and ripple should be less than 2 mV (peak-to-peak) over a 10 kHz bandwidth. You may use any readout device capable of reading from -0.6 V to 11 V.
  • Page 43: Connectors

    Chapter Two: Installation Setup Connectors The 7xxC Series transducers are available with a variety of connector options. The connector options, and the tables that list each pinout, are listed below:  9-pin Standard Type “D” (refer to Table 8, page 34) ...
  • Page 44: Table 8: 9-Pin Type "D" Connector Pinout

    Setup Chapter Two: Installation 9-Pin Type “D” Connector Pinout Signal Pressure Output Reserved Reserved + Power Input or 4 to 20 mA positive excitation Reserved Reserved Reserved Pressure Return Power Return or 4 to 20 mA negative excitation Table 8: 9-Pin Type “D” Connector Pinout 15-Pin High Density Type “D”...
  • Page 45: Table 10: Bendix 4 Position Pto Connector Option 1 Pinout

    Chapter Two: Installation Setup Bendix 4 Position PTO Connector Option 1 Pinout Signal + Power Input or 4 to 20 mA positive excitation Pressure Output Pressure Return Power Return or 4 to 20 mA negative excitation Table 10: Bendix 4 Position PTO Connector Option 1 Pinout Bendix 4 Position PTO Connector Option 2 Pinout Signal 4 to 20 mA positive excitation...
  • Page 46: Table 12: Flying Leads (Model Code F) Pinout

    Setup Chapter Two: Installation Flying Leads (Model Code F) Pinout Color Signal Pressure Output Black Pressure Return White Power Return or 4 to 20 mA negative excitation Green + Power Input or 4 to 20 mA positive excitation Table 12: Flying Leads (Model Code F) Pinout Flying Leads (Model Code L) Pinout Color Signal...
  • Page 47: Dimensions

    Chapter Two: Installation Dimensions Dimensions All dimensions are listed in inches with millimeters referenced in Note parentheses. Single Ended Version 1.50 (38.1) Dimension A Dimension A 2.75 (69.9) 2.68 (68.1) Dimension B Dimension B  High Pressure Units ( >1200 Torr) Low Pressure Units ( 1200 Torr) Figure 10: Dimensional Drawing of the Single-Ended Design Dimensions for Connectors and Fittings for Single-Ended Units...
  • Page 48: Flow-Through Version

    Dimensions Chapter Two: Installation Flow-Through Version The overall length of a flow-through unit, from fitting end to fitting end, varies with the type of fitting chosen. Dimension B Dimension B 1.50 1.50 (38.1) (38.1) Diameter Dimension A Dimension A 3.22 (81.8) Mating 4-VCR Connector 2.80...
  • Page 49: How To Connect To A Type Pdr Series Readout

    Chapter Two: Installation How To Connect to a Type PDR Series Readout How To Connect to a Type PDR Series Readout This section provides information on how to wire a Type PDR Series readout to a Type 7xxC transducer with either a Type “D” or Bendix connector. DO NOT use the -15 VDC output of the Type PDR readout to power Caution the 7xxC/800B Series transducer.
  • Page 50: Bendix Connector (Option 1 Pinout)

    How To Connect to a Type PDR Series Readout Chapter Two: Installation Bendix Connector (option 1 pinout) The correct cable to use for the Bendix connector is CB700-4, which has the mating Bendix connector on the transducer end and flying leads on the PDR end. Table 10 lists the pin assignments for the various colored wires on the flying leads end of the cable.
  • Page 51: How To Check The Transducer Zero

    (or reset) by adjusting the zero potentiometer located on the top cover of the transducer or, on the front panel of an MKS Power Supply/Readout, if you are using one. To set the zero on a compound calibration gauge you must set the output Note to a fixed value, as listed in Table 19, page 44.
  • Page 52: How To Zero An Absolute Transducer

    How To Check the Transducer Zero Chapter Two: Installation How To Zero an Absolute Transducer To zero an absolute transducer, you must pump the unit, with the power on, down to a pressure less than the transducer’s resolution (0.01% of Full Scale). The zero adjustment must be made at a pressure less than the transducer’s Note resolution (0.01% of F.S.).
  • Page 53: How To Zero A Gage Unit

    Chapter Two: Installation How To Check the Transducer Zero Highest Pressure for Proper Zero Adjustment Full Scale Range Pressure 10 Torr < 5 x 10 Torr 100 Torr < 5 x 10 Torr 1000 Torr < 5 x 10 Torr 30 psia <...
  • Page 54: Span Adjustment

    The span setting may require adjustment periodically. Only adjust the pot in conjunction SPAN with a calibration transfer standard. Do not adjust the span setting if a calibration transfer standard is not available. Instead, send the unit back to an MKS Service Center for calibration.
  • Page 55 Chapter Two: Installation How To Check the Transducer Zero...
  • Page 56: Chapter Three: Overview

    DC voltage output: a sensor, signal conditioner, and power supply. An analog or digital meter is required to display the DC output in pressure units. The MKS 7xxC Series transducers contain two of the above components: the sensor and signal conditioner. An MKS or MKS-compatible power supply is required to complete the pressure to DC voltage output conversion, and an MKS or MKS-compatible display unit is required for direct pressure readout.
  • Page 57: Signal Conditioning Electronics

    Chapter Three: Overview Signal Conditioning Electronics Signal Conditioning Electronics The signal conditioner contains state-of-the-art balanced bridge circuitry, self-compensated for thermal stability with ambient temperature changes. The circuit board construction uses surface mount technology. The output is either a DC voltage or mA current, which is linear with pressure.
  • Page 59: Chapter Four: Operation

    Chapter Four: Operation General Chapter Four: Operation General After installation and during periodic maintenance, check the transducer zero (for compound calibration gauges check the voltage or current reading) to verify proper output. If the output is incorrect, set the output by adjusting the zero potentiometer. Refer to How To Check the Transducer Zero, page 41, for zeroing instructions.
  • Page 60 General Chapter Four: Operation This page intentionally left blank.
  • Page 61: Chapter Five: Type R7Xxc Relay System

    Chapter Five: Type R7xxC Relay System General Information Chapter Five: Type R7xxC Relay System General Information The Type R7xxC pressure relay system consists of a 74xC or 75xC transducer attached to a relay module. The relay module provides two alarm trip points, two relays, and two status LEDs. The pressure transducer functions exactly the same as units without the relay module.
  • Page 62: Trip Point Parameters

    General Information Chapter Five: Type R7xxC Relay System Trip Point Parameters Trip Point Values The trip point values are adjusted using the Trip Point Adjustment pots located on the side of the Relay Module (refer to Figure 13). The adjustment voltage ranges from 0 to 10 V, corresponding to zero to full scale.
  • Page 63: Figure 14: Trip Point Direction Set Low

    Chapter Five: Type R7xxC Relay System General Information Trip Point Direction The trip point polarity, or direction, defines the direction of pressure change that will energize the hardware trip points; each relay functions independently. The trip point direction is controlled by jumpers on the PC board inside of the Relay Module.
  • Page 64: Setup

    Setup Chapter Five: Type R7xxC Relay System Setup Follow the guidelines described in Chapter Two: Installation, page 21, for instructions on installing your R700/R800 unit. Cabling The pressure transducer has a 19 inch, permanently attached cable that connects the unit to the relay module.
  • Page 65: Dimensions

    Chapter Five: Type R7xxC Relay System Setup Dimensions All dimensions are listed in inches with millimeters referenced in Note parentheses. The tolerances for the dimensions are ± 0.1 (X.X) and ±0.01 (X.XX). 15-Pin Male Type "D" 9-Pin Female Type "D" Analog Interface Connector Power Interface Connector Hex Nut...
  • Page 66: Figure 17: Top View Of The Type R7Xxc Unit

    Setup Chapter Five: Type R7xxC Relay System 2.75 Max. (69.9) 0.86 3.125 (21.8) (79.4) 4-VCR female Figure 17: Top View of the Type R7xxC Unit J2 Connector Span Pot 3.310 (84.1) Zero Pot 2.68 (68.1) Figure 18: Side View of the Type R7xxC Unit...
  • Page 67: Mounting Instructions

    Chapter Five: Type R7xxC Relay System Setup Trip Point Adjustments Figure 19: Location of the Trip Point Adjustments Mounting Instructions How To Mount the Bracket onto the Relay Module 1. Position the bracket over the rear panel of the Relay Module. Ensure that the holes in the large rectangular part of the bracket align with the mounting holes on the Relay Module (refer to Figure 16, page 55).
  • Page 68: Figure 20: Screws On The Top Of The Transducer

    Setup Chapter Five: Type R7xxC Relay System How To Install the Relay Module onto your Transducer 1. Remove the two (2) screws from the top of the transducer. Refer to Figure 20 for the location of the screws. T w o S c re w s Figure 20: Screws on the Top of the Transducer 2.
  • Page 69: Electrical Information

    Chapter Five: Type R7xxC Relay System Electrical Information Electrical Information Connector The “Reserved” pin assignment refers to a pin with an internal connection Note which may be assigned a function in the future. The relay module has a 15-pin Type “D” connector to interface to other devices. Connect the power supply to this connector.
  • Page 70: Contact Rating

    How To Configure the Trip Points Chapter Five: Type R7xxC Relay System Contact Rating The contact rating for the relays is 30 Volts AC/DC @ 2 Amp resistive. How To Configure the Trip Points To change the operation of a relay, that is, to select the pressure condition that will energize the relay, you must change its jumper setting on the PC board inside of the Relay Module.
  • Page 71: Figure 21: Relay Module Pc Board

    Chapter Five: Type R7xxC Relay System How To Configure the Trip Points Trip Point A jumper JP1 initially positioned over pins 1 & 2; Relay set to be energized below the trip point value Trip Point B jumper JP2 initially positioned over pins 2 &...
  • Page 72 How To Configure the Trip Points Chapter Five: Type R7xxC Relay System This page intentionally left blank.
  • Page 73: Chapter Six: Maintenance And Troubleshooting

    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 RMA (Return Material Authorization) Number before returning the unit to MKS Instruments for service.
  • Page 74: Troubleshooting

    (transducer to electronics Inspect cable and transducer. module). Replace if necessary. Measurement slowly goes Overpressure and/or a build- Return to MKS for servicing positive over time up of contamination in the P or transducer replacement. cavity. Unstable zero output The ambient temperature may Refer to Appendix A: be too high.
  • Page 75: Appendix A: Product Specifications

    Appendix A: Product Specifications 700 Series Specifications Appendix A: Product Specifications 700 Series Specifications Accuracy 1% of Reading Ambient Operating Temperature Range 0° to 50° C (32° to 122° F) Burst Pressure 10 times full scale or 1000 psia/g, whichever is greater; 5 times full scale to 3000 psia/g CE Compliance EMC Directive 2004/108/EC...
  • Page 76 700 Series Specifications Appendix A: Product Specifications Overpressure Limit 45 psia or 2 times full scale, whichever is greater Temperature Coefficients Zero 0.02% of F.S./ °C Span 0.04% of Rdg./ °C Weight Flow-through 12.3 oz. (349 g) Single-ended < 10 oz. (< 283 g) Additional Specifications for the Type R7xxC Pressure Relay System Contact Ratings 24 Volts AC/DC @ 1 Amp resistive...
  • Page 77: General Description

    Appendix A: Product Specifications General Description Appendix B: Model Code Explanation General Description The ordering code information is included in this section for reference only. Product Type Range Engineering Units Fittings Input/Output Accuracy Connector Product Type The 7xxC Series transducers covered in this manual include: 740C R740C 742C...
  • Page 78: Full Scale Range And Engineering Units

    General Description Appendix A: Product Specifications Full Scale Range and Engineering Units The full scale range is indicated by a two digit code. Ranges of 10 and above use the first digit to select the leading number of the range and the second digit selects the exponent. For example, the range code for a full scale of 1000 is 13.
  • Page 79: Fittings

    Appendix A: Product Specifications General Description Examples of Full Scale and Engineering Unit Ordering Codes 700 Series 800 Series Gage Ordering Absolute Ordering Absolute Ordering Code Code Code 50 psig 10 Torr 100 psia 100 psig 100 Torr 250 psia 250 psig 1000 Torr 1000 psia...
  • Page 80: Input/Output Settings

    General Description Appendix A: Product Specifications Input/Output Settings Use this ordering code to select the desired input/output combination listed in Table 28. Input/Output Selection Ordering Code Input Output Ordering Code +13 to 32 VDC 0 to 10 VDC +10.8 to 32 VDC 0 to 5 VDC +13 to 36 VDC 4 to 20 mA (two wire)
  • Page 81: Connector

    Appendix A: Product Specifications General Description Connector The 7xxC Series transducer can be equipped with the connectors listed in Table 30. Connector Ordering Code Connector Ordering Code 9-pin Type “D” 15-Pin High Density Type “D” Bendix 4 Position PT02A8-4P, male (4 -20 mA on pins A and D;...
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  • Page 83: Index

    Index Index Accessories, optional, 22 Maintenance, 61 Manual, organization, 18 Mounting information, 26 Cables, interface, 52 Mounting instructions Compound calibration, 41–44 relay module option, 55 Connections, 29, 57 Connectors, 17, 33–36 relay module option, 57 Optional accessories, 22 Customer support, 19 Output configuration, 17 Dimensions, 54 Pressure limit, 63...
  • Page 84 Index Transducer zero, 41–44 Trip point direction, 51 jumpers, 58 Trip points, 17 Type R700/R800 Relay System cabling, 52 connections, 57 electrical, 57 setup, 52 Ultraclean processing, 17 Unpacking, 21 Zero adjustment, 61 Zero, checking, 41–44...

This manual is also suitable for:

Baratron 742cBaratron 750cBaratron 752cR7c series

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