MKS 270B-4 Instruction Manual
MKS 270B-4 Instruction Manual

MKS 270B-4 Instruction Manual

High accuracy signal conditioner
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MKS Instruments 270B-4
High Accuracy Signal Conditioner
A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
• C r i t i c a l a n d e x p e d i t e d s e r v i c e s
• I n s t o c k / R e a d y - t o - s h i p
Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate, representative, or authorized distributor for any manufacturer listed herein.
$
895
.00
In Stock
Qty Available: 5
Used and in Excellent Condition
Open Web Page
https://www.artisantg.com/65399-12
• We b u y y o u r e x c e s s , u n d e r u t i l i z e d , a n d i d l e e q u i p me n t
• F u l l - s e r v i c e , i n d e p e n d e n t r e p a i r c e n t e r

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  • Page 1 MKS Instruments 270B-4 High Accuracy Signal Conditioner In Stock Qty Available: 5 Used and in Excellent Condition Open Web Page https://www.artisantg.com/65399-12 A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
  • Page 2 115817-P1 Rev E, 7/98 Instruction Manual MKS Type 270D 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: Warranty

    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 115817-P1 Rev E, 7/98 MKS Type 270D 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 Chapter Three: Overview ......................25 Front Panel Controls ....................25 Display ......................25 The x10 -3 and x10 -6 Lamps ................25 SENSOR RANGE Selector Switch ..............26 Display Units Selector Switch................26 RANGE SELECT Switch ................26 SENSOR ZERO Controls ................26 RESPONSE Toggle Switch ................27 HEATER Lamp .....................27 HEATER Toggle Switch ................27 POWER Switch .....................27...
  • Page 8 Table of Contents General ........................45 How to Replace the Fuses ..................46 Troubleshooting......................48 Test A: Localizing the Malfunction to the Cable or the Electronics Unit..50 Test B: Localizing Malfunctions to the Electronics Unit....... 52 How to Recalibrate the 270 Unit ................52 Appendix A: Product Specifications................
  • Page 9 Table of Contents Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 10 List of Figures and Tables List of Figures and Tables Figures Figure 1: Front Panel of the 270-4 Unit ................. 25 Figure 2: Rear Panel of the 270-4 Unit .................. 28 Figure 3: Interconnection Cables ................... 37 Figure 4: Sensor Cable Plus Two Resistors ................51 Tables Table 1: Definition of Symbols Found on the Unit ..............2 Tabelle 2: Definitionen der am Gerät angebrachten Symbole ............6...
  • Page 11 List of Figures and Tables viii Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 12: 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 13: 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 14: 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 15: Use The Proper Fuse

    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 16: 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 17: 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 18: 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 19 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 20: 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 21: 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 22: 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 23 Mesures de sécurité et mises en garde Informations relatives à la sécurité Utiliser uniquement un cordon d'alimentation amovible avec des conducteurs dont la section est égale ou supérieure à 0,75 mm . Le cordon d'alimentation doit être approuvé par un organisme compétent tel que VDE, Semko ou SEV.
  • Page 24: 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 25: 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 26: 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 27 Procedimientos y precauciones de seguridad Información sobre seguridad Usar únicamente un cable desmontable instalado con conductores que tengan un área de sección transversal equivalente o superior a 0,75mm². El cable eléctrico debe estar aprobado por una entidad autorizada como, por ejemplo, VDE, Semko o SEV. USAR LA FUENTE DE ALIMENTACIÓN ELÉCTRICA ADECUADA Este instrumento debe funcionar a partir de una fuente de alimentación eléctrica que no aplique más voltaje entre los conductores de suministro, o entre uno de los conductores de suministro y...
  • Page 28: Chapter One: General Information

    Chapter One: General Information Introduction Chapter One: General Information Introduction The MKS Type 270D High Accuracy Signal Conditioner is designed for the MKS 300 and 600  Series Baratron high accuracy pressure sensors. Three versions are available with different display capabilities: a 4½ digit, 5½ digit, and a displayless unit. All versions are designed to fit in a standard ½...
  • Page 29: 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 Type 270 unit. Before installing your Type 270 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 30: 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 31 Customer Support Chapter One: General Information This page intentionally left blank. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 32: Chapter Two: Installation

    Chapter Two: Installation How to Unpack the Type 270 Instrument MKS has carefully packed the Type 270 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 33 How to Unpack the Type 270 Instrument Chapter Two: Installation • Connector Cables: Note Braided, shielded cables may be necessary in noisy environments. To order braided, shielded cables, add an “S” after the cable type designation. For example, to order a standard connection cable to interface the Type 270 instrument to a 200 Series controller, use part number CB250-7-6;...
  • Page 34: Companion Products

    Chapter Two: Installation Companion Products Companion Products The 270 instrument works with the following 600 Series pressure sensors: • 698 Differential Sensor (regulated at 45° C) • 690 Absolute Sensor (regulated at 45° C) • 617 Bakeable Fast Absolute Sensor •...
  • Page 35: Product Location And Requirements

    Product Location and Requirements Chapter Two: Installation Product Location and Requirements The 270 unit fits in a standard ½ rack mount. It can be mounted in a panel cutout or a 19” rack when supplied with the RM-6 Rack Mount option. Caution Mount the Type 270 instrument in a location with sufficient air circulation to stay within the specified temperature range.
  • Page 36: Chapter Three: Overview

    Chapter Three: Overview Front Panel Controls Chapter Three: Overview Front Panel Controls and 10 Lamps Display Sensor Range Switch Power Display Units Switch Selector Switch Heater Response Heater Range Select Switch Lamp Sensor Zero Controls Toggle Switch Toggle Switch Figure 1: Front Panel of the 270-4 Unit Display Both the 4½...
  • Page 37: Sensor Range Selector Switch

    Front Panel Controls Chapter Three: Overview SENSOR RANGE Selector Switch selector switch is not included on the displayless unit (270-0). SENSOR RANGE Set the selector switch to match the range of the pressure sensor in use. The SENSOR RANGE settings include 1, 10, 100, 1K 10K, and MPX (multiplex connector control). When using the 270 unit with a 274 multiplexer, place the selector switch in the MPX SENSOR RANGE...
  • Page 38: Response Toggle Switch

    Chapter Three: Overview Front Panel Controls RESPONSE Toggle Switch This switch controls the electrical bandwidth of the instrument. The three positions are: RESPONSE Switch Settings Setting Milliseconds FAST NORMAL SLOW Table 5: RESPONSE Switch Settings HEATER Lamp lamp is illuminated when power is applied to the sensor heater. HEATER HEATER Toggle Switch This switch controls power to the heaters.
  • Page 39: Rear Panel Controls

    Rear Panel Controls Chapter Three: Overview Rear Panel Controls Remote Connector Head Connector Accessory Connector BCD Connector Multiplex (not on a 270-0 unit) Connector (not on a 270-0 unit) Power Entry Module REMOTE HEAD ACCESSORY LINE: +10% 50/60 HZ (50 VA MAX.) FUSE: 100/120 - 0.6 ASB/250V 220/240 - 0.3 ASB/250V Figure 2: Rear Panel of the 270-4 Unit...
  • Page 40: Accessory Connector

    +5 V DC Output Return No Connection Good Data* +13 V Ground -13 V Chassis Ground * Used only by MKS Table 7: ACCESSORY Connector (J401) Pinout Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 41: Head Connector

    Rear Panel Controls Chapter Three: Overview HEAD Connector This 15-pin female Type “D” connector connects the cable from the 270 instrument to a pressure sensor. Refer to Table 8 for the pin assignments. HEAD Connector (J403) Pinout Pin Number Description Chassis Ground Analog Common Heater Return...
  • Page 42: Bcd Connector

    1000 Enable Digit 5 Enable Digit 4 * Used only by MKS Table 9: BCD Connector Pinout for Type 270-4 (4½ digit display) (Continued on next page) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 43 Decimal -1P +5 Volt Return Enable Digit 3 Chan 2 ID * Used only by MKS Table 9: BCD Connector Pinout for Type 270-4 (4½ digit display) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 44 Hold Good Data* No Connection No Connection Decimal +4P * Used only by MKS Table 10: BCD Connector Pinout for the Type 270-5 (Continued on next page) Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 45: Bcd Interface Signals

    +5 Volt Return Decimal 0P Decimal -3P Chan 2 ID * Used only by MKS Table 10: BCD Connector Pinout for the Type 270-5 (5½ digit display) BCD Interface Signals REMOTE DISPLAY HOLD The 270 instrument can communicate over the , Data Ready, and Enable lines on the BCD connector.
  • Page 46: Overranging Output On The 5½ Digit Unit (270-5)

    Chapter Three: Overview Overranging Output on the 5½ Digit Unit (270-5) Overranging Output on the 5½ Digit Unit (270-5) The display on the 270 instrument overranges at 130,000 counts. When the display reaches its maximum count, it simply remains locked at that reading. Be wary of readings greater than full scale on these ranges.
  • Page 47: Multiplex Connector

    Overranging Output on the 5½ Digit Unit (270-5) Chapter Three: Overview MULTIPLEX Connector This 25-pin female Type “D” connector provides access to the logic circuits of the 270 instrument. This connector links the 270 instrument with a 274 multiplexer. When the SENSOR switch is in the position, the multiplexer controls the placement of the sensor...
  • Page 48: Chapter Four: Operation

    The upper drawing in Figure 3 shows the correct cables to use to connect the 270 instrument to a single pressure sensor and an MKS controller. The lower drawing shows the Type 270 instrument connected to a Type 274 multiplexer unit.
  • Page 49 How to Configure the 270 Instrument Chapter Four: Operation 3. Plug the power cable from the 270 instrument into a 115 VAC - 60 Hz power source. For a 230 VAC - 50 Hz power source, the power entry module must be set to the proper voltage.
  • Page 50 Chapter Four: Operation How to Configure the 270 Instrument 12. Position the switch in the x0.01 position. RANGE SELECT Refer to your sensor’s Instruction Manual for the proper pressure to set the zero. If you are using a differential sensor, crossport the unit. 13.
  • Page 51: How To Change The Line Voltage Selection

    How to Change the Line Voltage Selection Chapter Four: Operation How to Change the Line Voltage Selection The 270 instrument can use power from any of the following line voltages: • 100 VAC • 120 VAC (factory default setting) • 220 VAC •...
  • Page 52: How To Select The Range Setting Remotely

    Chapter Four: Operation How to Select the Range Setting Remotely How to Select the Range Setting Remotely 1. Position the switch in the position. RANGE SELECT REMOTE 2. Apply the appropriate signal to select the desired range. Table 12 lists the logic levels and the corresponding ranges. Remote Range Logic Levels Range Remote Connector (J402)
  • Page 53: Additional Procedures For The 0.1 Torr Sensors

    Additional Procedures for the 0.1 Torr Sensors Chapter Four: Operation Additional Procedures for the 0.1 Torr Sensors The 0.1 Torr sensors require special instructions to adjust the zero setting on the sensor, and to use the remote zero setting on the 270 instrument. How to Adjust the Zero on the 0.1 Torr Full Scale Sensor Note 1.
  • Page 54: Using A Low Range Pressure Sensor With The Remote Zero Option

    Remote Zero option, you should consult an MKS Service Center. Your 270 instrument may need to be modified. Please refer to the back cover of this manual for a list of the authorized MKS Calibration and Service Centers.
  • Page 55 Additional Procedures for the 0.1 Torr Sensors Chapter Four: Operation This page intentionally left blank. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 56: Chapter Five: Maintenance And Troubleshooting

    ERA (Equipment Return Authorization) Number before shipping. The ERA Number expedites handling and ensures proper service of your instrument. Please refer to the back cover of this manual for a list of the authorized MKS Calibration and Service Centers.
  • Page 57: How To Replace The Fuses

    How to Replace the Fuses Chapter Five: Maintenance and Troubleshooting How to Replace the Fuses The only maintenance required on the Type 270 instrument is changing 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 58 Chapter Five: Maintenance and Troubleshooting How to Replace the Fuses 2. Disconnect the power cord from the 270 instrument. Warning To avoid an electrical shock, be sure to disconnect the power cord before proceeding. 3. Disconnect all cables from the connectors located at the back of the unit. 4.
  • Page 59: Troubleshooting

    Troubleshooting Chapter Five: Maintenance and Troubleshooting Troubleshooting This section describes the most common problems encountered with the 270 instrument and offers possible solutions. Hint: If possible, substitute another similar instrument to verify that the problem involves the Type 270 instrument before proceeding. Overrange (>11 Volts) or Erroneous Pressure Readings 1.
  • Page 60 Scale position. Does it work properly? the 270 Problem is internal to the 270. Call MKS to receive an ERA number and return the unit. Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 61: Test A: Localizing The Malfunction To The Cable Or The Electronics Unit

    Troubleshooting Chapter Five: Maintenance and Troubleshooting Test A: Localizing the Malfunction to the Cable or the Electronics Unit Equipment Required: Digital Volt Meter (DVM) 1. Disconnect the sensor cable from the sensor. 2. Place the switch in the position. RANGE SELECT SYS CHK 3.
  • Page 62: Figure 4: Sensor Cable Plus Two Resistors

    COARSE You should be able to adjust this control ±40% of full scale. If you cannot adjust the zero control sufficiently, send the unit back to MKS for service. Refer to COARSE Customer Support, page 19, for instructions.
  • Page 63: Test B: Localizing Malfunctions To The Electronics Unit

    How to Recalibrate the 270 Unit Chapter Five: Maintenance and Troubleshooting Test B: Localizing Malfunctions to the Electronics Unit 1. Disconnect the sensor cable from the 270 instrument and check voltages at the sensor connector. 2. Place the switch in the position.
  • Page 64: Appendix A: Product Specifications

    Output Drive Ability 1 TTL load EMC Directive 89/336/EEC Electromagnetic Compatibility Dimensions Standard MKS ½ rack, 3½” H x 9½” W x 12” D (8.9 cm H x 24.1 cm W x 30.5 cm D) Display 270-0 no display 270-4 4½...
  • Page 65 Appendix A: Product Specifications Chapter Five: Maintenance and Troubleshooting Displayed Pressure Units mmHg, mbar, kPa, inHg, inH 2 O, cmH 2 O, psi Fuses 90 - 132 VAC 0.6 Amperes Slow Blow Type 180 - 264 VAC 0.3 Amperes Slow Blow Type Operating Temperature 15°...
  • Page 66: Index

    Index Index 0.1 Torr sensors, using, 42–43 HEAD connector, 30 HEATER lamp, 27 HEATER switch, 27 Accessories, optional, 21 ACCESSORY connector, 29 Introduction, 17 BCD, 31–34 Line voltage, changing, 40 Location requirements, 24 Communications, 34 Data Ready line, 34 Enable line, 34 Maintenance, 46 Remote Display Hold line, 34 Manual...
  • Page 67 Index Remote Display Hold line, 34 RESPONSE switch, 27 Returns, 19, 45 Scientific notation, lamps for, 25 SENSOR RANGE switch, 26 SENSOR ZERO controls, 26 Setup, 37–39 Specifications, 53–54 Type 274 Multiplex unit, 17, 36, 37–39 Zero control, 26 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

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