MKS 670B Instruction Manual
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MKS 670B Instruction Manual

High accuracy signal conditioner
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  • Page 1 (217) 352-9330 | Click HERE Find the MKS Instruments 670B at our website:...
  • Page 2 120466-P1 Rev B, 1/98 Instruction Manual MKS Type 670B High Accuracy Signal Conditioner Six Shattuck Road Fax: (978) 975-0093 Andover, MA 01810-2449 E-mail: mks@mksinst.com (800) 227-8766 or (978) 975-2350 Web site: http://www.mksinst.com Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 3 MKS sales representative or distributor from which the equipment was purchased or, in the case of a direct purchase from MKS, with the MKS home office in Andover, Massachusetts, USA.
  • Page 4 120466-P1 Rev B, 1/98 MKS Type 670B High Accuracy Signal Conditioner Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 5 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 6: Table Of Contents

    Table of Contents Table of Contents Safety Information........................1 Symbols Used in This Instruction Manual..............1 Symbols Found on the Unit ..................2 Safety Procedures and Precautions ................3 Sicherheitshinweise........................ 5 In dieser Betriebsanleitung vorkommende Symbole ........... 5 Am Gerät angebrachte Symbole................. 6 Sicherheitsvorschriften und Vorsichtsmaßnahmen............
  • Page 7 Table of Contents Example 1: Preferred Method To Connect Cable...........26 Example 2: Alternate Method To Connect Cable ..........26 Product Location and Requirements ................27 Operating Environmental Requirements............27 Safety Conditions ..................27 Electrical Requirements .................27 Dimensions ........................28 Chapter Three: Hardware Overview ..................31 Front Panel.........................31 Key Lock Switch ...................31 Display Area....................32 Trip Point LEDs ....................32...
  • Page 8 Table of Contents The [SETUP] Key....................45 Display Size ....................45 Response....................... 46 Heater ......................47 Pressure Units ....................48 Sensor Range ....................49 Temperature Compensation ................50 Averaging ..................... 51 RS-232 Communication Parameters (Optional) ..........53 IEEE-488 Communication Parameters (Optional).......... 53 The [TRIP POINTS] Key..................
  • Page 9 Table of Contents How To Configure the Trip Points ................75 How To Disable a Trip Point..................77 How To Clear a Latched Trip Point ................77 How To Adjust Hysteresis..................78 How To Select the Range Setting Remotely ...............79 How To Use the Remote Zero Feature................80 How To Display the Software Version Number ............81 How To Display the Heater Current with the Pressure Reading ........81 How To Change the Line Voltage Selection ...............82...
  • Page 10 Operation Complete Messages............... 109 Wait-to-Continue Command (*WAI)............. 109 Identification Query (*IDN?)................. 110 Reset Command (*RST)................110 Self-Test Query (*TST?) ................110 MKS Device Dependent Messages................111 Command Syntax..................111 Global Configuration Messages..............112 Channel-Specific Messages ................115 Trip Point Messages ..................121 Diagnostic Messages ..................
  • Page 11 Table of Contents Appendix D: Interface Cables for a Type 274 Multiplexer............145 I/O Connector Cables ....................145 CB670-2 Y Cable ..................145 Index ............................149 viii Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 12 List of Figures List of Figures Figure 1: Preferred Method....................26 Figure 2: Alternate Method To Use When Cable Clamp is Not Available......26 Figure 3: Front View Dimensions..................28 Figure 4: Side View Dimensions ................... 28 Figure 5: Top View Dimensions.................... 29 Figure 6: The Front Panel......................
  • Page 13 List of Figures Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 14 List of Tables List of Tables Table 1: Definition of Symbols Found on the Unit ..............2 Tabelle 2: Definitionen der am Gerät angebrachten Symbole ............6 Tableau 3 : Définition des symboles apparaissant sur l'appareil ..........10 Tabla 4 : Definición de los símbolos que aparecen en la unidad..........14 Table 5: System Interface Cables....................23 Table 6: Interface Cables for Remote Communications ............24 Table 7: Pinout of the Serial Interface Connector..............34...
  • Page 15 List of Tables Table 30: Commands for the Enable Registers ............... 108 Table 31: Identification Query Response................110 Table 32: IEEE-488 Global Messages ..................112 Table 33: IEEE-488 Channel-Specific Messages..............115 Table 34: IEEE-488 Trip Point Messages................121 Table 35: IEEE-488 Diagnostic Messages................124 Table 36: Fuses for the Type 670 Instrument .................

  • Page 16: Safety Information

    Safety Information Symbols Used in This Instruction Manual 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. 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 17: Symbols Found On The Unit

    Symbols Found on the Unit 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 Protective earth (ground) Earth (ground) Off (Supply) On (Supply) IEC 417, No.5019 IEC 417, No.5008 IEC 417, No.5017...

  • Page 18: 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 19 Safety Procedures and Precautions Safety Information USE THE PROPER POWER SOURCE This product is intended to operate from a power source that does not apply more voltage between the supply conductors, or between either of the supply conductors and ground, than that specified in the manual.

  • Page 20: Sicherheitshinweise

    Sicherheitshinweise In dieser Betriebsanleitung vorkommende Symbole Sicherheitshinweise In dieser Betriebsanleitung vorkommende Symbole Definition der mit WARNUNG!, VORSICHT! und HINWEIS überschriebenen Abschnitte in dieser Betriebsanleitung. Warnung! &CU 5[ODQN 9#4070) YGKUV CWH GKPG )GHCJTGPSWGNNG JKP 'U OCEJV CWH GKPGP #TDGKVUCDNCWH GKPG #TDGKVUYGKUG GKPGP <WUVCPF QFGT GKPG UQPUVKIG )GIGDGPJGKV CWHOGTMUCO FGTGP WPUCEJIGO·­G #WUHÒJTWPI D\Y WPIGPÒIGPFG $GTÒEMUKEJVKIWPI \W -ÌTRGTXGTNGV\WPI HÒJTGP MCPP...

  • Page 21: Am Gerät Angebrachte Symbole

    Am Gerät angebrachte Symbole Sicherheitshinweise Am Gerät angebrachte Symbole Der untenstehenden Tabelle sind die Bedeutungen der Symbole zu entnehmen, die an dem Gerät angebracht sind. Definitionen der am Gerät angebrachten Symbole Ein (Netz) Aus (Netz) Erde Schutzleiter IEC 417, Nr. 5007 IEC 417, Nr.

  • Page 22: Sicherheitsvorschriften Und Vorsichtsmaßnahmen

    Bauen Sie in das Instrument keine Ersatzteile ein, und nehmen Sie keine eigenmächtigen Änderungen am Gerät vor! Schicken Sie das Instrument zu Wartungs- und Reparatur-zwecken an einen MKS-Kalibrierungs- und -Kundendienst ein! Dadurch wird sicher-gestellt, daß alle Sicherheitseinrichtungen voll funktionsfähig bleiben.
  • Page 23 Sicherheitsvorschriften und Vorsichtsmaßnahmen Sicherheitshinweise Erdung und Verwendung geeigneter elektrischer Armaturen! In diesem Instrument liegen gefährliche Spannungen an. Alle verwendeten elektrischen Armaturen und Kabel müssen dem angegebenen Typ entsprechen und sich in einwand-freiem Zustand befinden. Alle elektrischen Armaturen sind vorschriftsmäßig anzubringen und zu erden. Richtiges Netzkabel verwenden! Das verwendete Netzkabel muß...

  • Page 24: Informations Relatives À La Sécurité

    Informations relatives à la sécurité Symboles utilisés dans ce manuel d'utilisation Informations relatives à la sécurité Symboles utilisés dans ce manuel d'utilisation Définition des indications AVERTISSEMENT, ATTENTION et REMARQUE utilisées dans ce manuel. #XGTVKUUGOGPV . KPFKECVKQP #8'46+55'/'06 UKIPCNG WP FCPIGT RQVGPVKGN 'NNG GUV FGUVKP¾G ¯...

  • Page 25: Symboles Apparaissant Sur L'appareil

    Symboles apparaissant sur l'appareil Informations relatives à la sécurité Symboles apparaissant sur l'appareil Le tableau suivant décrit les symboles apparaissant sur l'appareil. Définition des symboles apparaissant sur l'appareil Terre de protection Marche (sous tension) Arrêt (hors tension) Terre (masse) (masse) IEC 417, No.

  • Page 26: Mesures De Sécurité Et Mises En Garde

    NE PAS SUBSTITUER DES PIÈCES OU MODIFIER L'APPAREIL Ne pas utiliser de pièces détachées autres que celles vendues par MKS Instruments, Inc. ou modifier l'appareil sans l'autorisation préalable de MKS Instruments, Inc. Renvoyer l'appareil à...
  • Page 27 Mesures de sécurité et mises en garde Informations relatives à la sécurité UTILISATION D'UN CORDON D'ALIMENTATION APPROPRIÉ Utiliser uniquement un cordon d'alimentation en bon état et conforme aux exigences de puissance d'entrée spécifiées dans le manuel. Utiliser uniquement un cordon d'alimentation amovible avec des conducteurs dont la section est égale ou supérieure à...

  • Page 28: Información Sobre Seguridad

    Información sobre seguridad Símbolos usados en el manual de instrucciones Información sobre seguridad Símbolos usados en el manual de instrucciones Definiciones de los mensajes de ADVERTENCIA, PRECAUCIÓN Y OBSERVACIÓN usados en el manual. #FXGTVGPEKC 'N UÃODQNQ FG #&8'46'0%+# KPFKEC WP TKGUIQ 2QPG FG TGNKGXG WP RTQEGFKOKGPVQ RT±EVKEC EQPFKEKÉP GVE SWG FG PQ TGCNK\CTUG W QDUGTXCTUG EQTTGEVCOGPVG RQFTÃC ECWUCT NGUKQPGU C NQU GORNGCFQU...

  • Page 29: Símbolos Que Aparecen En La Unidad

    Símbolos que aparecen en la unidad Información sobre seguridad Símbolos que aparecen en la unidad En la tabla que figura a continuación se indican los símbolos que aparecen en la unidad. Definición de los símbolos que aparecen en la unidad Encendido Apagado (alimentación eléctrica)

  • Page 30: Procedimientos Y Precauciones De Seguridad

    No se debe instalar piezas que no sean originales ni modificar el instrumento sin autorización. Para garantizar que las prestaciones de seguridad se observen en todo momento, enviar el instrumento al Centro de servicio y calibración de MKS cuando sea necesaria su reparación y servicio de mantenimiento.
  • Page 31 Procedimientos y precauciones de seguridad Información sobre seguridad USAR EL CABLE ELÉCTRICO ADECUADO Usar únicamente un cable eléctrico que se encuentre en buenas condiciones y que cumpla los requisitos de alimentación de entrada indicados en el manual. Usar únicamente un cable desmontable instalado con conductores que tengan un área de sección transversal equivalente o superior a 0,75mm².

  • Page 32: Chapter One: General Information

    Chapter One: General Information Introduction Chapter One: General Information Introduction The MKS Type 670B High Accuracy Signal Conditioner is designed to work with the MKS 300 ® and 600 Series Baratron high accuracy pressure transducers. The 670 instrument consists of the power supplies, heater control, and oscillator necessary to interface with the compatible MKS pressure transducers.

  • Page 33: How This Manual Is Organized

    How This Manual is Organized Chapter One: General Information How This Manual is Organized This manual provides instructions on how to set up, install, and operate a 670 unit. Before installing your Type 670 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 34: Manual Conventions

    Chapter One: General Information How This Manual is Organized Manual Conventions The following conventions apply throughout this manual: XXXXXX For inputs: Indicates that the line must be pulled low to activate the function. XXXXXX For outputs: Indicates that the output is active low. 670 Front Panel Keys: Keys on the front panel of the 670 instrument appear in square brackets with leading spaces, for example,...

  • Page 35: Customer Support

    Calibration and Service Center before shipping. The ERA 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. Warning All returns to MKS Instruments must be free of harmful, corrosive, radioactive, or toxic materials.

  • Page 36: Chapter Two: Installation

    Chapter Two: Installation How To Unpack the Type 670 Unit MKS has carefully packed the Type 670 unit so that it will reach you in perfect operating order. Upon receiving the unit, however, you should check for defects, cracks, broken connectors, etc., to be certain that damage has not occurred during shipment.
  • Page 37 How To Unpack the Type 670 Unit Chapter Two: Installation Optional Equipment • 670B-K1 Electrical Connector Accessories Kit (includes mating connectors for all the electrical connectors) • CB270-2-x (where x is the cable length in ft.) cable to connect the pressure transducer to the 670 instrument •...

  • Page 38: Interface Cables

    January 1, 1997, most products shipped to the European Community must also comply with the Product Safety Directive 92/59/EEC and the Low-Voltage Directive 73/23/EEC, which cover general safety practices for design and workmanship. MKS products that meet these requirements are identified by application of the CE Mark.

  • Page 39: Remote Communications Interface Cables

    Interface Cables Chapter Two: Installation Remote Communications Interface Cables Table 6 lists the cables to connect your 670 unit to either an RS-232 or IEEE-488 device. Interface Cables for Remote Communications Communication Cable Description RS-232 CB146-2-10 IBM compatible (9-pin female to 9-pin female), 10 ft CB146-4 25-pin adapter (25-pin female to 9-pin male) IEEE-488...

  • Page 40: Generic Shielded Cable Description

    Interface Cables 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 a braided shield, covering all wires. Neither aluminum foil nor spiral shielding will be as effective;...

  • Page 41: Example 1: Preferred Method To Connect Cable

    Interface Cables Chapter Two: Installation 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 42: Product Location And Requirements

    Chapter Two: Installation Product Location and Requirements Product Location and Requirements The Type 670 unit meets the following criteria: • POLLUTION DEGREE 2 in accordance with IEC 664 • Transient overvoltages according to INSTALLATION CATEGORY II Operating Environmental Requirements • Ambient Operating Temperature: 15°...

  • Page 43: Dimensions

    Dimensions Chapter Two: Installation Dimensions Note All dimensions are listed in inches with millimeters referenced in parentheses. Type 670 Ch 1 Signal Conditioner X 0.1 Ch 2 3.48 +0.008 3.00 + 0.008 Trip Parameters X 0.01 Ch 3 Points (88.4 +0. 20) Remote (76.2 +0.

  • Page 44: Figure 5: Top View Dimensions

    Chapter Two: Installation Dimensions 8.00 +0. 02 (203.2 +0. 51) 9.07 +0.02 (230.1 +0. 51) 10.35 Max. (262.9) Figure 5: Top View Dimensions Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 45 Dimensions Chapter Two: Installation This page intentionally left blank. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 46: Chapter Three: Hardware Overview

    Chapter Three: Hardware Overview Front Panel Chapter Three: Hardware Overview Front Panel Figure 6 shows the front panel of the 670 instrument. Chapter Four: Functional Overview, page 43, discusses the operation of the 670 instrument. Range Selector Trip Point LEDs Keys Display Area Type 670...

  • Page 47: Display Area

    Front Panel Chapter Three: Hardware Overview Display Area The display area displays the pressure reading. It can also display the software version and the percentage of power supplied to a transducer heater. Additionally, when you press a mode key ] or [ ] ) or the [ ] key, the display area changes to list the SETUP...

  • Page 48: Rear Panel

    Chapter Three: Hardware Overview Rear Panel Rear Panel Figure 7 shows the rear panel of the 670 instrument. RS-232 Connector Connector Blank Signal Conditioner Board Line Voltage Selector Switch Head Connector Power Line Connector Signal Connector Fuse Location On/Off Power Switch Figure 7: The Rear Panel with RS-232 Communications IEEE-488 Connector...

  • Page 49: Serial Interface Or Ieee-488 Connector

    Rear Panel Chapter Three: Hardware Overview Serial Interface or IEEE-488 Connector Slot 1 will contain either the Serial Interface or the IEEE-488 board, depending on which remote communications option you ordered. The remote communications feature allows the 670 instrument to communicate with, and be controlled by, a computer equipped with the appropriate communications software.

  • Page 50: Table 8: Pinout Of The Ieee-488 Connector

    Chapter Three: Hardware Overview Rear Panel IEEE Connector The IEEE-488 connector is a 24-pin General Purpose Interface Bus (GPIB) connector. The pin assignments, listed in Table 8, comply with the IEEE-488.1 specification. Pinout of the IEEE-488 Connector Pin Number Abbreviation Description DIO1 Data Input Output 1...

  • Page 51: I/O Connector

    Rear Panel Chapter Three: Hardware Overview I/O Connector The I/O connector provides the following features: • Interface to a Type 274 multiplexer • Relay closures for trip points • ±15 Volt output signals • Remote access of the range select, remote zero function, and trip point latch functions •...

  • Page 52: Table 9: Pinout Of The I/O Connector

    Chapter Three: Hardware Overview Rear Panel Pinout of the I/O Connector Pinout Pin Number Assignment Pin Number Assignment Trip Point A NC Trip Point A Common Trip Point A NO Trip Point B Common Trip Point B NC Trip Point B NO Digital Ground x1 Range ID x0.1 Select...

  • Page 53: Signal Conditioner Board

    Rear Panel Chapter Three: Hardware Overview Signal Conditioner Board The Signal Conditioner board provides the interface between the 670 instrument and the pressure transducer. The board contains two connectors: an upper connector labeled “Head,” and lower connector labeled “Signal.” Head (Upper) Connector The Head connector is a 15-pin female Type “D”...

  • Page 54: Table 11: Pinout Of The Signal Connector On The Signal Conditioner Board

    Chapter Three: Hardware Overview Rear Panel Signal (Lower) Connector This 9-pin male Type “D” connector allows an external device to access the range selection circuits. The three ranges (x1, x0.1, x0.01), along with a 0 to 10 VDC output on each range, are available through this connector.

  • Page 55: Power Entry Module

    Rear Panel Chapter Three: Hardware Overview Power Entry Module The Power Entry module contains: • Line voltage selector • IEC power line connector • Power line fuses (2) • RFI power line filter For information on the line voltage selector, refer to How To Change the Line Voltage Selection, page 82.

  • Page 56: Labels

    The serial number label, affixed to the side of the unit, lists the model code of the unit. Serial #: 0000000113 Model #: 670BD21 MKS In stru ment s, Inc. Made in t he USA Figure 10: Serial Number Label Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 57 Labels Chapter Three: Hardware Overview This page intentionally left blank. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 58: Chapter Four: Functional Overview

    Chapter Four: Functional Overview General Information Chapter Four: Functional Overview General Information This chapter presents a global view of the 670 functionality. For detailed instructions on how to perform a specific task, refer to Chapter Five: Operation, page 67. Note To operate the 670 instrument from the front panel, place the Key Lock switch in the position.

  • Page 59: How To Change Entries

    General Information Chapter Four: Functional Overview How To Change Entries The menus consist of two types of entries; those you choose from a list of options, and those that require you to enter a value. To choose an entry from a list of options, use the Adjust knob to scroll through the options.

  • Page 60: How To Change Channels

    Chapter Four: Functional Overview The [SETUP] Key How To Change Channels If you are using the 670 instrument with a single pressure transducer, the active channel will always be Channel 1. Pressing the other channel number keys will have no effect. Channel Selection Using the 274 Multiplexer If you are using the 670 instrument with a 274 multiplexer, you can display data from Channels 1 through 3, individually.

  • Page 61: Response

    The [SETUP] Key Chapter Four: Functional Overview Response Ch 1 760 T Response 400 mSec. The response can be set to 1, 40, or 400 milliseconds. The response entry selects the filter used to reduce noise in the pressure signal before it goes to the analog-to-digital (A/D) converter. This entry affects the displayed value, the value reported by the remote communications, and the pressure output signal.

  • Page 62: Heater

    Chapter Four: Functional Overview The [SETUP] Key Heater Ch 1 Heater OFF This entry allows you to select whether the 670 instrument supplies power to a heated pressure transducer. The Adjust knob toggles between ON and OFF. The purpose of displaying the heater current is to indicate when the transducer has reached thermal equilibrium.

  • Page 63: Pressure Units

    The [SETUP] Key Chapter Four: Functional Overview Pressure Units Ch 1 760 Torr Pressure Unit: Torr The 670 instrument can display the pressure reading in Torr, mmHg, mbar, Pa, kPa, psi, inHg, inH 2 O, cmH 2 O, % Full Scale, ppm, and mTorr. Use the Adjust knob to scroll through the pressure units.

  • Page 64: Sensor Range

    Chapter Four: Functional Overview The [SETUP] Key Sensor Range Ch 1 Sensor Range ±1.00000E+3Torr The sensor range entry, used in conjunction with the pressure units entry, sets the full scale reading of the pressure transducer. Set this entry to the full scale value of the transducer. Use the [ ] key and the Adjust knob to change the sensor range value.

  • Page 65: Temperature Compensation

    The [SETUP] Key Chapter Four: Functional Overview Temperature Compensation Ch 1 Temperature Compensation: +500 This screen allows you to use the 670 instrument to set the temperature compensation of a bakeable transducer, such as the 315, 317, 615, 616, 617. The Types 310, 370, 390, 391, 398, 590, 690, 698 transducers do not need to have the temperature compensation changed.

  • Page 66: Averaging

    Chapter Four: Functional Overview The [SETUP] Key Averaging Ch 1 760 Torr Averaging: 20 This screen displays the averaging entry that defines number of readings the 670 instrument will average to establish the pressure reading. By averaging multiple data points, you can smooth the pressure signal from an unstable system.

  • Page 67: Table 14: Optimal Averaging And Response Entries

    The [SETUP] Key Chapter Four: Functional Overview The pressure reading is 53.4 at time T+0.5. At time T+0.6, the 670 instrument computes a new moving average, dropping the oldest value, 52 in the example above, and adding the reading collected at time T+0.6, in this case 58: 273 ÷...

  • Page 68: Communication Parameters (Optional)

    Chapter Four: Functional Overview The [SETUP] Key RS-232 Communication Parameters (Optional) Note This screen only appears when the 670 instrument is equipped with the RS-232 remote communications option. It does not appear when the 670 instrument has the IEEE-488 communications option. RS232: 9600 Baud 8 Bit...

  • Page 69: The [Trip Points] Key

    The [TRIP POINTS] Key Chapter Four: Functional Overview The [TRIP POINTS] Key Use the [ ] key to configure the two trip points. Each trip point is defined by a TRIP POINTS high and low setting and controls a relay. In addition, you choose the initial state of the trip point relays;...
  • Page 70 Chapter Four: Functional Overview The [TRIP POINTS] Key Trip Point A Settings TP A HIGH 7.80000E+2 Torr TP A LOW 7.40000E+2 Torr Trip Point B Settings TP B HIGH 7.80000E+2 Torr TP B LOW 7.40000E+2 Torr These screens define the high and low settings for Trip Point B (TP B). Press the down arrow key [ ] once to scroll to the TP B LOW screen.

  • Page 71: Hysteresis

    The [TRIP POINTS] Key Chapter Four: Functional Overview Hysteresis Hysteresis is built into the operation of the two trip points to help compensate for the noise inherent in all systems. Without hysteresis, the noise may cause the relays to repeatedly switch states, a condition known as “relay chatter.”...

  • Page 72: Relay State

    Chapter Four: Functional Overview The [TRIP POINTS] Key Hysteresis Screen TP A Hysters: 10.00% TP B Hysters: -10.00% The hysteresis feature, built into the operation of the two trip points, helps to compensate for the noise inherent in all systems. Excessive noise can cause the trip points to repeatedly switch states, a condition known as “relay chatter.”...

  • Page 73: Channel Selection

    The [TRIP POINTS] Key Chapter Four: Functional Overview Channel Selection Each trip point must be assigned to a channel. If you are using a single pressure transducer, set the trip point channel to Channel 1. If you are using a 274 multiplexer, the trip point channels assigned may differ from the active channel.
  • Page 74 Chapter Four: Functional Overview The [TRIP POINTS] Key Latch Mode TP A LATCH: ENABLED TP B LATCH: DISABLED Use the Adjust knob to select the state of the latch mode. Press the down arrow key [ ] to set the latch for Trip Point B. The I/O connector provides the ability to clear latched trip points remotely.

  • Page 75: The [Cal] Key

    The [CAL] Key Chapter Four: Functional Overview The [CAL] Key The [ ] key presents the calibration information and performs the calibration functions. The message “ ” appears on the screen and the channel selector lights extinguish CALIBRATING while the 670 instrument performs a calibration procedure. The current value of the entry is listed in the top portion of the screen.

  • Page 76: System Check Calibration

    Chapter Four: Functional Overview The [CAL] Key System Check Calibration Ch 1 9.9998 SYSCHK This screen displays the system check value. This value can be used as a diagnostic tool. Note Be sure that the system is at the correct pressure for the type of transducer, BEFORE using the SYSCHK function.

  • Page 77: The [Zero] Key

    The [ZERO] Key Chapter Four: Functional Overview The [ZERO] Key The [ ] key allows you to zero the transducer from the 670 instrument. The 670 ZERO instrument performs the zero function on all three ranges (x1, x0.1, and x0.01). Zero Enable Ch 1 760 Torr...
  • Page 78 Chapter Four: Functional Overview The [ZERO] Key The zero calibration applies a zero correction factor to assign the present voltage reading a pressure of 0.00 Torr (or to the base pressure reading appropriate for the units you are using). This correction factor accounts for any voltage offset caused by the transducer or the wiring between the transducer and the 670 instrument.

  • Page 79: The [Auto] And Range Keys

    The [AUTO] and Range Keys Chapter Four: Functional Overview The [AUTO] and Range Keys The [ ] key activates the autoranging feature. When the 670 instrument is configured for AUTO autoranging, the instrument switches the range automatically to optimize the pressure reading. Both the [ ] key and the active range key ( [ 1], [...
  • Page 80 Chapter Four: Functional Overview The [AUTO] and Range Keys significant digit to the display. The full scale voltage on the x0.1 range is 10 Volts. The range remains at x0.1 for pressure readings between 105% of the current range (10.5 Torr) and 9% of the current range (0.9 Torr).
  • Page 81 The [AUTO] and Range Keys Chapter Four: Functional Overview This page intentionally left blank. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 82: Chapter Five: Operation

    Chapter Five: Operation How To Configure the 670 Instrument Chapter Five: Operation How To Configure the 670 Instrument This section describes how to connect and configure the 670 instrument. 1. Power up the unit by pressing the On/Off switch to the On position. Refer to Figure 7, page 33, for the location of the On/Off switch.
  • Page 83 How To Configure the 670 Instrument Chapter Five: Operation Refer to Chapter Three: Hardware Overview, page 31, for a description of the Key Lock switch. When the Key Lock switch is in the position, you can remove REMOTE the key. The key cannot be removed when the switch is in the position.

  • Page 84: How To Interface To The Type 274 Multiplexer

    Chapter Five: Operation How To Interface to the Type 274 Multiplexer How To Interface to the Type 274 Multiplexer The 670 instrument can interface to the Type 274 multiplexer and display the pressure signal from up to three pressure transducers, individually. Figure 16, page 69, shows the 670 instrument connected to a 274 multiplexer.

  • Page 85: Configuring The 274 Multiplexer

    How To Interface to the Type 274 Multiplexer Chapter Five: Operation Configuring the 274 Multiplexer 1. Place the switch in the position. CHANNEL SELECT This allows the 670 instrument to select the active channel. 2. Place the switch (on the left-hand side), in the position, for each TEMP COMP channel.

  • Page 86: How To Set The Sensor Full Scale Entry

    Chapter Five: Operation How To Set the Sensor Full Scale Entry How To Set the Sensor Full Scale Entry To configure the 670 instrument to work with a pressure transducer, you need to select the sensor range and pressure unit. You should check the label on your transducer to determine both the sensor range and pressure unit used to calibrate the transducer.

  • Page 87: How To Calibrate The 670 Instrument

    How To Calibrate the 670 Instrument Chapter Five: Operation How To Calibrate the 670 Instrument The 670 instrument displays the message “ ” during any calibration procedure. CALIBRATING Note Complete the calibration procedure in the order listed below. Failure to do so may result in an invalid calibration.

  • Page 88: Table 16: Relationship Between Averaging Entry And Calibration Times

    Chapter Five: Operation How To Calibrate the 670 Instrument Relationship Between Averaging Entry and Calibration Times Averaging Entry: Null 17 sec. 24 sec. 32 sec. 40 sec. 49 sec. F.S. 9 sec. 13 sec. 17 sec. 20 sec. 24 sec. Zero 21 sec.

  • Page 89: Additional Calibration For The Type 274 Multiplexer

    How To Calibrate the 670 Instrument Chapter Five: Operation zeroed if the output of the transducer is greater than 2% of the sensor full scale range. Refer to the pressure transducer instruction manual for the proper pressure for your transducer. It may take several hours to achieve an acceptable base pressure. 12.

  • Page 90: How To Configure The Trip Points

    Chapter Five: Operation How To Configure the Trip Points How To Configure the Trip Points The 670 instrument has two trip points, and each trip point controls a relay. The relays provide 24 Volts AC/DC @1 Amp resistive (contact rating) power. You assign a channel number, an initial state, and high and low values for each trip point.
  • Page 91 How To Configure the Trip Points Chapter Five: Operation 7. Use the Adjust knob to set the normal state for TP A. The Adjust knob alternates between ENERGIZED and DE-ENERGIZED. 8. Press an arrow key to move the cursor to the TP B entry. The system responds by moving the cursor to the TP B entry.

  • Page 92: How To Disable A Trip Point

    Chapter Five: Operation How To Disable a Trip Point How To Disable a Trip Point Refer to The [TRIP POINTS] Key, page 54, for a complete description of trip points. • Setting the trip point high entry to +105% of full scale disables the trip point •...

  • Page 93: How To Adjust Hysteresis

    How To Adjust Hysteresis Chapter Five: Operation How To Adjust Hysteresis Refer to The [TRIP POINTS] Key, page 54, for a complete description of trip points and hysteresis. 1. Press the [ ] key. TRIP POINTS The system responds by displaying a trip points screen. 2.

  • Page 94: How To Select The Range Setting Remotely

    Chapter Five: Operation How To Select the Range Setting Remotely How To Select the Range Setting Remotely The Head connector on the Signal Conditioner board provides the ability to select the range setting remotely. 1. Place the Key Lock switch, located on the front panel, in the position.

  • Page 95: How To Use The Remote Zero Feature

    How To Use the Remote Zero Feature Chapter Five: Operation How To Use the Remote Zero Feature The I/O connector provides the ability to zero the 670 instrument remotely. The 670 instrument uses an edge trigger to activate the remote zero function. Edge triggering requires that pins change from one state to another before the function will occur.

  • Page 96: How To Display The Software Version Number

    Chapter Five: Operation How To Display the Software Version Number How To Display the Software Version Number 1. From the pressure display screen, press an arrow key ( [ ] or [ ] ) until the software version number display screen appears. The version number is displayed below the pressure reading.

  • Page 97: How To Change The Line Voltage Selection

    How To Change the Line Voltage Selection Chapter Five: Operation How To Change the Line Voltage Selection The 670 instrument can use power from any of the following line voltages: • 100 to 120 VAC nominal on the 115 V setting (factory default setting) •...

  • Page 98: How To Use The Syschk Feature

    Chapter Five: Operation How To Use the SYSCHK Feature How To Use the SYSCHK Feature Refer to System Check Calibration, page 61, for a description of the SYSCHK feature. 1. Verify that all vacuum fittings are tight. 2. For an absolute transducer, pump down the system to a base pressure less than the resolution of the transducer.
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  • Page 100: Chapter Six: Rs-232 Communications Option

    Chapter Six: RS-232 Communications Option General Information Chapter Six: RS-232 Communications Option General Information Note The information in this chapter only applies if your 670 instrument is configured with the RS-232 Communications option. If your 670 instrument is configured with the IEEE-488 communication option, refer to Chapter Seven, IEEE-488 Communications Option, page 103, for remote communications information.

  • Page 101: Rs-232 Protocol

    RS-232 Protocol Chapter Six: RS-232 Communications Option RS-232 Protocol Messages sent to the 670 instrument are either commands that instruct the instrument to change an operating parameter, or requests that prompt the instrument to report information. Responses sent by the 670 instrument either acknowledge a command issued by the host computer, or reply to a request sent by the host computer.

  • Page 102: Requests

    Chapter Six: RS-232 Communications Option RS-232 Protocol Requests A request message sent to the 670 instrument causes it to send back information. All requests sent to the 670 instrument use the same basic format as commands: @parameter id ? ENTER where: parameter is two ASCII bytes representing the command parameter...

  • Page 103: Table 20: Responses For Rejected Commands

    RS-232 Protocol Chapter Six: RS-232 Communications Option Responses for Rejected Commands Response Cause ?parameter data Invalid data field >parameter data unrecognized parameter or identifier id =parameter data Command is inappropriate at this time Table 20: Responses for Rejected Commands The response to an accepted command will be identical to the command itself. Response to a Request The response to a request will follow the format listed below: status parameter id data <CR>...

  • Page 104: Rs-232 Messages

    Chapter Six: RS-232 Communications Option RS-232 Messages RS-232 Messages The RS-232 messages are divided into the following groups: Group I requires no specific ID (id = ‘0’) Group II requires a channel ID (id = ‘0’ for channel 1, ‘1’ for channel 2, ‘2’ for channel 3) Group III requires a trip point ID (id = ‘0’...

  • Page 105: Global Messages

    RS-232 Messages Chapter Six: RS-232 Communications Option Global Messages The Global messages, listed in Table 21, do not use the <id> entry, however you must enter a ‘0’ in the <id> entry field to complete the message string. The table lists the <data> entry for a command and a request.
  • Page 106 Chapter Six: RS-232 Communications Option RS-232 Messages If the transducer is open to the atmosphere and Torr is selected as the pressure units, the response will be: @020 760 ENTER Example 3: How To Calibrate the Null Value Calibrating the 670 instrument involves two Global commands. First, use the set mode (01) command to select the calibration procedure.

  • Page 107: Channel-Specific Messages

    RS-232 Messages Chapter Six: RS-232 Communications Option Channel-Specific Messages The Channel-Specific messages, listed in Table 22, require the id entry to identify the channel: @parameter id data ENTER where 0 for Channel 1 1 for Channel 2 2 for Channel 3 Channel-Specific Messages Parameter Entry Action...
  • Page 108 Chapter Six: RS-232 Communications Option RS-232 Messages Channel-Specific Messages (Continued) Parameter Entry Action Data for a Command Data for a Request Gain Range Mode 0 = x1 ‘?’ 1 = x0.1 2 = x0.01 3 = Auto Enable Zero 0 = No (Off) ‘?’...
  • Page 109 RS-232 Messages Chapter Six: RS-232 Communications Option Example 4: How To Request the Heater Current The enable heater (12) command allows you to toggle the transducer heater on or off. In addition, the 670 unit can report the percentage of power used. You cannot change the power consumption.
  • Page 110 Chapter Six: RS-232 Communications Option RS-232 Messages Example 6: How To Zero the 670 Instrument Zeroing the 670 instrument involves two Group I commands and one Group II command. First, issue the enable remote zero (18) command to enable the zero operation. Second, use the set mode (01) command to select the calibration procedure.

  • Page 111: Trip Point Messages

    RS-232 Messages Chapter Six: RS-232 Communications Option Trip Point Messages The Trip Point messages, listed in Table 23, require the <id> entry to identify the trip point: @parameter id data ENTER where: 0 for Trip Point A 1 for Trip Point B Refer to The [TRIP POINTS] Key, page 54, for a complete description of the trip points.
  • Page 112 Chapter Six: RS-232 Communications Option RS-232 Messages Example 2: How To Set the Trip Point Hysteresis The hysteresis value is defined as a ± percent of the trip point value and can range from 0 to 10%. Refer to How To Adjust Hysteresis, page 78, for a complete discussion of hysteresis. To set the hysteresis value for TP B to 0.1%, enter: @421.1 ENTER...

  • Page 113: Diagnostic Messages

    RS-232 Messages Chapter Six: RS-232 Communications Option Diagnostic Messages The Diagnostic messages, listed in Table 24, consist of one command (80) to provide diagnostic information. The <id> field identifies the diagnostic information requested. Diagnostic Messages Parameter Entry Data Response 0 = Request Answer Back *U*U*U (produces an alternating bit pattern) 1 = Request Version Number...

  • Page 114: Table 25: I/O Connector Output Bit Assignment

    Chapter Six: RS-232 Communications Option RS-232 Messages Example 2: How To Test the Output Signals on the I/O Connector This diagnostic test allows you to set the values of the output signals on the I/O connector. Use a voltmeter to read the value of the signals at the connector to detect any problem. This command controls the 8 outputs on the I/O connector.
  • Page 115 RS-232 Messages Chapter Six: RS-232 Communications Option Example 3: How To Read the Input Signals on the I/O Connector This diagnostic command (802) allows you to read the input signals on the I/O connector. To perform this diagnostic test you will need to configure each input so you know the bit value of the connector.

  • Page 116: Table 26: I/O Connector Input Bit Assignment

    Chapter Six: RS-232 Communications Option RS-232 Messages I/O Connector Input Bit Number Assignments Diagnostic Input Bit Value Function I/O Pin Bit Number Number x0.1 Select x0.01 Select Channel 1 ID Channel 2 ID 1024 Channel 3 ID 2048 Reserved 4096 Remote Zero 8192 Reserved...
  • Page 117 RS-232 Messages Chapter Six: RS-232 Communications Option Example 4: How To Determine the Actual Range Used This message enables you to query the 670 instrument for the actual range in use. This may be useful when the 670 instrument is configured for autoranging. (The Channel-Specific query for the range will simply return “Auto”...

  • Page 118: Chapter Seven: Ieee-488 Communications Option

    Chapter Seven: IEEE-488 Communications Option General Information Chapter Seven: IEEE-488 Communications Option General Information Note The information in this chapter only applies if your 670 instrument is configured with the IEEE-488 Communications option. If your 670 instrument is configured with the RS-232 communication option, refer to Chapter Six, RS-232 Communications Option, page 85, for remote communications information.

  • Page 119: Ieee-488 Device Compliance

    General Information Chapter Seven: IEEE-488 Communications Option IEEE-488 Device Compliance Refer to Table 27 for a description of the IEEE-488 device compliant functions. IEEE-488 Device Compliance Function Command Compatibility Source Handshake Complete Acceptor Handshake Complete Talker Talker, serial poll and unaddress if my-listener- address (MLA) Listener Listener and unaddress if my-talker-address (MTA)

  • Page 120: Status Information

    Chapter Seven: IEEE-488 Communications Option Status Information Status Information The 670 instrument uses two software registers (defined by IEEE-488.2) to provide status information. The registers are the Standard Event Status register and the Status Byte register. The relationship of the registers is shown in Figure 17. Standard Event 7 6 5 4 2 1 0...

  • Page 121: Standard Event Status Register

    Status Information Chapter Seven: IEEE-488 Communications Option Standard Event Status Register This register contains status information on the last communication (command) sent to the controller. The 670 instrument updates this register each time it receives a command. Table 28 describes the function of this register. Standard Event Status Register Bit Number Function...

  • Page 122: Status Byte Register

    Chapter Seven: IEEE-488 Communications Option Status Information Status Byte Register The Status Byte register contains information on the status of the 670 instrument. Bits 6, 5, and 4 are defined by IEEE-488.2. The information is useful to check the status of the instrument. To read the Status Byte register, issue the “*STB?”...

  • Page 123: Generating A Service Request

    Status Information Chapter Seven: IEEE-488 Communications Option Generating a Service Request The 670 instrument can generate a Service Request (SRG) based on the status of the registers described above. A SRG alerts the host computer that the 670 instrument has encountered an error condition.

  • Page 124: Ieee-488 Messages

    IEEE-488 Messages IEEE-488 Messages The 670 instrument supports standard IEEE-488 messages, along with the MKS device dependent messages. The messages include both commands that instruct the 670 instrument to perform a task, and queries that request information from the 670 instrument.

  • Page 125: Identification Query (*Idn?)

    To check the version number, send the following command: *IDN? ENTER The 670 instrument will respond with: MKS Instruments MKS670BXXX 0 1.1x where XXX represents the model number, and the last field contains the actual version number, in this example, version 1.1x. Reset Command (*RST) The reset command initializes to the 670 instrument.

  • Page 126: Mks Device Dependent Messages

    Note 1. The MKS device dependent messages are not case sensitive. You may enter the messages in either upper- or lowercase. 2. The 670 instrument does not send an acknowledgment message when it receives a command.

  • Page 127: Global Configuration Messages

    MKS Device Dependent Messages Chapter Seven: IEEE-488 Communications Option Global Configuration Messages The Global configuration messages include commands that define the operation of the 670 instrument and queries that request the status of a particular entry. These commands configure operating parameters that are used for all channels.
  • Page 128 Chapter Seven: IEEE-488 Communications Option MKS Device Dependent Messages Global Messages (Continued) Function Message Perform a Calibration Command :calibrate:function Shortcut command :cali:func Table 32: IEEE-488 Global Messages Example 1: How To Set the Active Channel To set the active channel to Channel 2 (assuming you have a 274 multiplexer connected),...
  • Page 129 MKS Device Dependent Messages Chapter Seven: IEEE-488 Communications Option Example 3: How To Calibrate the Null Value Calibrating the 670 instrument involves two steps. First, use the set mode command to select the calibration procedure. Second, issue the command to perform the calibration function to actually initiate the calibration procedure.

  • Page 130: Channel-Specific Messages

    Chapter Seven: IEEE-488 Communications Option MKS Device Dependent Messages Channel-Specific Messages The Channel-Specific messages define the operation of a single channel on the 670 instrument. Channel 1 is always accessible. When the 670 instrument is connected to a 274 multiplexer, Channels 2 and 3 are accessible and should be configured.
  • Page 131 MKS Device Dependent Messages Chapter Seven: IEEE-488 Communications Option Channel-Specific Messages (Continued) Function Message Enable Heater Command :route:control:heater(@chan #) State Shortcut command :rout:cont:heat(@chan #) State :route:control:heater(@chan #)? Query Shortcut query :rout:cont:heat(@chan #)? where chan # equals: 1 for Channel 1...
  • Page 132 Chapter Seven: IEEE-488 Communications Option MKS Device Dependent Messages Channel-Specific Messages (Continued) Function Message Zero Enable Command :sense:scan(@chan #):zero state Shortcut command :sens:scan(@chan #):zero state :sense:scan(@chan #):zero? Query Shortcut query :sens:scan(@chan #):zero? where chan # equals: 1 for Channel 1...
  • Page 133 MKS Device Dependent Messages Chapter Seven: IEEE-488 Communications Option Channel-Specific Messages (Continued) Function Message Sensor Full Scale Command :sense:scan(@chan #):range value Shortcut command :sens:scan(@chan #):rang value :sense:scan(@chan #):range? Query Shortcut query :sens:scan(@chan #):rang? where chan # equals: 1 for Channel 1...
  • Page 134 Chapter Seven: IEEE-488 Communications Option MKS Device Dependent Messages Channel-Specific Messages (Continued) Function Message Gain Range Command :sense:scan(@chan#):gain value Shortcut command :sens:scan(@chan#):gain value :sense:scan(@chan#):gain? Query Shortcut query :sens:scan(@chan#):gain? where chan # equals: 1 for Channel 1 2 for Channel 2 3 for Channel 3 where value equals X1, X0.1, X0.01, or Auto...
  • Page 135 MKS Device Dependent Messages Chapter Seven: IEEE-488 Communications Option Example 4: How To Request the Heater Current The enable heater command allows you to toggle the transducer heater on or off. In addition, it will report the percentage of power used (when enabled). You cannot change the value.

  • Page 136: Trip Point Messages

    Chapter Seven: IEEE-488 Communications Option MKS Device Dependent Messages Trip Point Messages The Trip Point messages define the trip point values, both high and low, the initial state of the trip point relays, and the hysteresis values. Refer to The [TRIP POINTS] Key, page 54, for a complete description of the trip points.
  • Page 137 MKS Device Dependent Messages Chapter Seven: IEEE-488 Communications Option Trip Point Messages (Continued) Function Message Trip Point Channel Command :control:relay A or B:trip (@ tp chan) Shortcut command :cont:rela A or B:trip (@ tp chan) Query: :control:relay A or B:trip?
  • Page 138 Chapter Seven: IEEE-488 Communications Option MKS Device Dependent Messages Example 3: How To Set the Trip Point Channel for Trip Point A To set TP A channel to Channel 1, issue the following command: :control:relay a:trip (@1) ENTER Example 4: How To Set the Latch Mode for Trip Point A...

  • Page 139: Diagnostic Messages

    MKS Device Dependent Messages Chapter Seven: IEEE-488 Communications Option Diagnostic Messages The Diagnostic messages help to troubleshoot a problem with the 670 instrument. The messages in this category enable you to read the value of the input bits and define the value of the output bits on the I/O connector.
  • Page 140 Chapter Seven: IEEE-488 Communications Option MKS Device Dependent Messages Example 2: How To Read the Input Signals on the I/O Connector To perform this diagnostic test you will need to configure each input so you know the bit value of the connector. The I/O connector has 16 inputs. Table 26, page 101, lists the input bit number assignments and their bit values.
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  • Page 142: Chapter Eight: Maintenance And Troubleshooting

    Chapter Eight: Maintenance and Troubleshooting General Information Chapter Eight: Maintenance and Troubleshooting General Information Periodically check for wear on the cables and inspect the enclosure for visible signs of damage. The only maintenance required on the 670 instrument is to change the fuses. How To Clean the Unit Periodically wipe down the unit with a damp cloth.

  • Page 143: How To Replace The Fuses

    How To Replace the Fuses Chapter Eight: Maintenance and Troubleshooting How To Replace the Fuses To replace the fuses: 1. Select the proper fuses. All units have two fuses installed to fuse both sides of the line. The fuse values, marked on the rear panel, are: •...
  • Page 144 Chapter Eight: Maintenance and Troubleshooting How To Replace the Fuses 2. Disconnect the power cord from the 670 instrument. Warning To avoid an electrical shock, be sure to disconnect the power cord before proceeding. 3. Disconnect all cables from the connectors located on the back of the unit. 4.

  • Page 145: Troubleshooting

    Troubleshooting Chapter Eight: Maintenance and Troubleshooting Troubleshooting This section describes the most common problems encountered with the 670 instrument and offers possible solutions. Note If possible, substitute another similar instrument to verify that the problem involves the 670 instrument before proceeding. Noisy Pressure Reading •...
  • Page 146 Chapter Eight: Maintenance and Troubleshooting Troubleshooting Overrange (>10.5 Volts) Pressure Readings 1. Verify that all vacuum fittings are tight and that the transducer is properly pumped down below its resolution. Low range absolute transducers (100 mmHg and below) will be overranged at atmospheric pressure.

  • Page 147: Troubleshooting Chart

    ENTER. Does it work properly? number and return the unit. Problem is internal to the 670. Call MKS to receive an ERA number and return the unit. Figure 18: Troubleshooting Flow Chart Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 148: Test A: Localizing Malfunction To The Cable Or The Electronics Unit

    Chapter Eight: Maintenance and Troubleshooting Troubleshooting Test A: Localizing Malfunction to the Cable or the Electronics Unit Equipment Required: Digital Volt Meter (DVM) 1. Disconnect the transducer cable from the transducer. 2. Press the [ ] key on the front panel of the 670 instrument. The system responds by displaying the calibration screen.

  • Page 149: Figure 19: Two Resistors Added To The Transducer Cable

    Troubleshooting Chapter Eight: Maintenance and Troubleshooting 8. Use the DVM to check the voltages at the transducer end of the cable. Refer to Table 37 for the appropriate voltage values. Reference the DVM to pin H (2). Transducer Cable Voltage Check Transducer Cable Voltage Function...
  • Page 150 Chapter Eight: Maintenance and Troubleshooting Troubleshooting 11. Press an arrow key, ( [ ] or [ ] ), until the system check screen appears. Ch 1 -9.8799 Volts SYSCHK This should produce a negative full scale reading, ±10%. 12. Connect a short circuit across the 1K resistor and press the [ 0.01] range selection key.

  • Page 151: Test B: Localizing Malfunctions To The Electronics Unit

    Troubleshooting Chapter Eight: Maintenance and Troubleshooting Test B: Localizing Malfunctions to the Electronics Unit 1. Disconnect the transducer cable from the 670 instrument and check voltages at the Head (upper) connector on the Signal Conditioner Board. Electronics Unit Voltage Check Connector Pin Voltage Function...

  • Page 152: Appendix A: Product Specifications

    Appendix A: Product Specifications Performance Specifications Appendix A: Product Specifications All specifications are at 23° C, 120 VAC Performance Specifications Ranges x1, x0.1, and x0.01 of full range of the pressure transducer Analog Signal Output 0 to ±10 V on each range (x1, x0.1, x0.01), Voltage available at rear±...
  • Page 153 Performance Specifications Appendix A: Product Specifications Performance Specifications (Continued) Display and Digital Communications Accuracy ± 50 ppm F.S. Zero± ± 200 ppm F.S. Span± Update Rate 4 times per second (every 0.25 seconds) Linearity 0 to 10 Volts <± 15 ppm of F.S. 0 to -10 Volts <±...

  • Page 154: Physical Specifications

    An activated relay will change state and the front panel LED will illuminate Dimensions 3½”H x 9½”W x 9”D Standard MKS ½ rack (8.9 cm H x 24.1 cm W x 22.9 cm D) Weight 7 lbs. 14 oz. ( 3.6 kg)

  • Page 155: Environmental Specifications

    Environmental Specifications Appendix A: Product Specifications Environmental Specifications Operating Temperature Range 15 to 40° C (59 to 104° F) Humidity Range 10 through 90% non-condensing Electrical Specifications Power Requirement 100 to 120 or 200 to 240 VAC @ 50 - 60 Hz, 75 VA maximum Fuses 100 to 120 VAC...

  • Page 156: Appendix B: Model Code Explanation

    The model code is identified as follows: 670BXXX where: 670B Type Number Communication Type Number (670B) This designates the model number of the instrument. Communication (XXX) The communication option, either RS-232 or IEEE-488, is specified by a three character code. Communication Ordering Code...
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  • Page 158: Appendix C: Initial Settings

    Appendix C: Initial Settings General Information Appendix C: Initial Settings General Information The 670 signal conditioner is shipped with the following initial configuration. This configuration is not a default configuration, however, since the 670 unit stores most of the configuration settings in non-volatile RAM. Settings stored in non-volatile RAM are saved when the power is turned off.
  • Page 159 General Information Appendix C: Initial Settings Initial Settings (Continued) Parameter Default Options Page Trip Points, A and B High +105.000% User selectable -105.000% User selectable ±0.10% Hysteresis User selectable State De-energized Energized Latch Enabled Disabled Channel 2, 3 if connected to a Type 274 multiplexer Line Voltage 115 VAC...
  • Page 160 Appendix D: Interface Cables for a Type 274 Multiplexer I/O Connector Cables Appendix D: Interface Cables for a Type 274 Multiplexer I/O Connector Cables When the 670 instrument is interfaced with a 274 multiplexer, two cables connect the two units. First, a CB270-2 cable must connect the Head connector (upper connector on the Signal Conditioner board) to the ELEC connector on the 274 unit.

  • Page 161: Table 40: Pinout Of The Y-Cable 25-Pin Male Connector

    I/O Connector Cables Appendix D: Interface Cables for a Type 274 Multiplexer Pinout of the Y-Cable 25-pin Male Connector Signal Special No Connection Channel 1 ID Channel 2 ID Channel 3 ID Channel ID Common Select Channel 1 Select Channel 2 No Connection No Connection No Connection...

  • Page 162: Table 41: Pinout Of The Y-Cable 25-Pin Female Connector

    Appendix D: Interface Cables for a Type 274 Multiplexer I/O Connector Cables Pinout of the Y-Cable Female Connector Signal Trip Point A NC Trip Point A Common Trip Point A NO Trip Point B NC Trip Point B Common Trip Point B NO Latch TP A Latch TP B Remote Zero...
  • Page 163 I/O Connector Cables Appendix D: Interface Cables for a Type 274 Multiplexer This page intentionally left blank. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 164 Index Index Addressing, 104 Front panel controls, 31–32, 43 AUTO key, 64–65 Full scale, configuring, 60, 71, 73, 119 Autoranging, 64–65 Fuse information, 128 Averaging, 51, 72, 73, 94 Heater current, 47, 81, 94, 120 Baratron, 17, 22 Hysteresis, 56, 57, 78, 97 Buffer length, 104 adjusting, 56 Cables, 23, 54, 58, 67, 69, 134, 145...
  • Page 165 Index Local mode, 31 responses, 87 Manual Safety information, 1–16 conventions, 19 Sensor range, 49 organization, 18 Serial number, 41 Model code, 141 Settings, initial, 143 SETUP key, 85 Signal Conditioner board, 38 Null calibration, 60 Signal connector, 36, 39 Software version, 81, 98 System Check reference, 61, 83, 131, 132 Optional accessories, 22...
  • Page 166 Index Version, 81, 98 Zero, 73 Zero, configuring, 62, 74, 95, 120 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 167 Index Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

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