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MKS 670B User Manual

MKS 670B
168 pages
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Table of Contents

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MKS 670B Specifications

General IconGeneral
BrandMKS
Model670B
CategoryIndustrial Equipment
LanguageEnglish

Summary

Warranty

Safety Information

Symbols Used in Instruction Manual

Definitions of WARNING, CAUTION, and NOTE messages.

Symbols Found on Unit

Defines symbols present on the equipment itself.

Safety Procedures and Precautions

General safety precautions for instrument operation and handling.

General Information

Introduction to MKS Type 670B

Overview of the MKS Type 670B High Accuracy Signal Conditioner.

Manual Organization

Explains the structure and content of the instruction manual.

Manual Conventions

Details conventions used for inputs, outputs, keys, and modes.

Customer Support

Information on MKS maintenance, repair services, and contact.

Installation

Unpacking the 670 Unit

Procedure for safely unpacking the MKS Type 670B instrument.

Unpacking Checklist

List of standard equipment included with the Type 670 unit.

Interface Cables

Details system interface and remote communication cables.

System Interface Cables

Specifies MKS cables for connecting to transducers and multiplexers.

Remote Communications Interface Cables

Lists cables for RS-232 or IEEE-488 communication.

Generic Shielded Cable Description

Guidelines for manufacturing or selecting shielded cables for MKS equipment.

Dimensions

Front and Side View Dimensions

Diagrams and measurements of the front and side views of the 670 instrument.

Top View Dimensions

Diagram and measurements of the top view of the 670 instrument.

Hardware Overview

Front Panel Controls and Indicators

Describes the front panel layout including display, keys, LEDs, and indicators.

Key Lock Switch

Details the function of the Key Lock switch for operation modes.

Rear Panel Connectors and Modules

Covers I/O, serial, IEEE-488, signal connectors, and power entry.

Signal Conditioner Board Details

Details the Head and Signal connectors on the Signal Conditioner Board.

Power Entry and Labels

Describes the power entry module and rear panel identification labels.

Functional Overview

General Functional Information

Introduces the 670 functionality and how to perform tasks.

Color-Coded Front Panel Keys

Explains the color coding of front panel keys for functional association.

Menu Scrolling

Describes how to scroll through menu screens using arrow keys.

Changing Menu Entries

Details how to select options and enter values in menus.

Handling Invalid Entries

Explains how the instrument handles invalid data entries.

Display Screen Information

Describes the main pressure display and other information shown.

Changing Channels

Explains how to select channels, especially with a multiplexer.

Using the SETUP Key

Details how to use the SETUP key to configure operational parameters.

Response Setting

Configures the filter used to reduce noise in the pressure signal.

Heater Control

Allows selection of power supply to a heated pressure transducer.

Pressure Unit Configuration

Sets the units for pressure readings and remote reporting.

Sensor Range Configuration

Sets the full scale reading of the pressure transducer in conjunction with units.

Temperature Compensation

Sets temperature compensation for transducers with selectable temperatures.

Averaging Feature

Smooths pressure readings by averaging multiple data points.

RS-232 Communication Parameters

Configures baud rate, data bits, and parity for RS-232 communication.

IEEE-488 Communication Parameters

Configures the IEEE-488 device address for remote communication.

Using the TRIP POINTS Key

Configures two alarm trip points, defining high/low values and relay states.

Trip Point Settings

Defines high/low trip point values, including disabling trip points.

Adjusting Hysteresis

Explains how to adjust hysteresis values for trip points to prevent relay chatter.

Relay State Configuration

Sets the normal state of trip point relays (energized or de-energized).

Channel Selection for Trip Points

Assigns channels (1-3) for each trip point, especially with a multiplexer.

Trip Point Latching

Enables latching of trip points to maintain alarm state until cleared.

Latch Mode Configuration

Configures the latch state (enabled/disabled) for trip points.

Using the CAL Key for Calibration

Accesses calibration information and performs Null and Full Scale calibration.

Null Calibration

Procedure to eliminate zero errors inherent in the instrument.

Full Scale Calibration

Procedure to calibrate output span to an internal standard for gain errors.

System Check Calibration

Displays system check value for diagnostic purposes.

Using the ZERO Key

Allows zeroing the transducer from the 670 instrument across all ranges.

Zero Enable Setting

Enables or disables the zero calibration procedure.

Zero Calibration Procedure

Initiates the zero calibration procedure when enabled.

Remote Zero Feature

Describes how to zero the instrument remotely via I/O connector pins.

Using AUTO and Range Keys

Explains autoranging and manual range selection features.

Operation

Configuring the 670 Instrument

Step-by-step guide to connect and configure the 670 instrument for operation.

Interfacing with Type 274 Multiplexer

Connecting the Cables

Details the cable connections between the 670 and 274 multiplexer.

Configuring the 274 Multiplexer

Steps to configure the Type 274 multiplexer for use with the 670 instrument.

Configuring the 670 Instrument (with Multiplexer)

Details configuration steps for the 670 when connected to a 274 multiplexer.

Setting Sensor Full Scale Entry

Calibrating the 670 Instrument

Configuring Trip Points

Disabling Trip Points

Explains how to disable a trip point by setting its value to ±105%.

Clearing Latched Trip Points

Procedure to release a latched trip point and maintain latch mode.

Adjusting Hysteresis

Details how to adjust hysteresis values for trip points to prevent relay chatter.

Remote Range Setting

Remote Zero Feature

Displaying Software Version

Displaying Heater Current

Shows how to display heater power supply alongside pressure readings.

Changing Line Voltage Selection

Using the SYSCHK Feature

RS-232 Communications Option

RS-232 General Information

Introduces RS-232 option and its operation modes.

RS-232 Communication Parameters

Lists and explains RS-232 communication parameters like baud rate and parity.

RS-232 Protocol

Defines RS-232 message syntax, commands, and requests.

RS-232 Commands

Format and structure of commands sent to the 670 instrument via RS-232.

RS-232 Requests

Format of requests sent to the 670 instrument to retrieve information.

RS-232 Responses

Format of responses from the 670 instrument to commands and requests.

RS-232 Message Groups

Divides RS-232 messages into groups for parameters, channels, and diagnostics.

RS-232 Global Messages

Commands and requests for global functions like mode and channel selection.

RS-232 Channel-Specific Messages

Commands and requests for channel-specific functions like response time and units.

RS-232 Trip Point Messages

Commands for setting trip point values, hysteresis, and latch modes.

RS-232 Diagnostic Messages

Commands for checking software version and I/O connector status.

IEEE-488 Communications Option

IEEE-488 General Information

Introduces IEEE-488 option and its compliance with standards.

Key Lock Switch for IEEE-488

Explains the Key Lock switch for enabling IEEE-488 remote operation.

IEEE-488 Device Compliance

Describes the IEEE-488 compliant functions and commands.

IEEE-488 Buffer Length

Specifies the fixed buffer length for IEEE-488 communications.

IEEE-488 Address Configuration

Details how to set the IEEE-488 device address.

IEEE-488 Status Information

Explains the use of status registers for monitoring instrument status.

Standard Event Status Register

Describes the Standard Event Status Register and its bit functions.

Status Byte Register

Describes the Status Byte Register and its bit functions.

Generating Service Requests (SRG)

Explains how to configure enable registers for generating Service Requests.

IEEE-488 Messages Overview

Lists standard and device-dependent messages for controlling the instrument.

Clear Status Command (*CLS)

Clears all status data structures and registers.

Operation Complete Messages

Determine instrument task status (performing or idle).

Wait-to-Continue Command (*WAI)

Functions as a 'no operation' command, controlling command execution flow.

Identification Query (*IDN?)

Queries the instrument for manufacturer, model, and firmware level.

Reset Command (*RST)

Initializes the instrument, including bus and message exchange.

Self-Test Query (*TST?)

Performs an internal self-test and reports success or failure.

MKS Device Dependent Messages

Details MKS specific commands for configuration and queries.

MKS Command Syntax

Explains typographical conventions for MKS device dependent messages.

IEEE-488 Global Configuration Messages

Commands for setting active channel, mode, and calibration procedures.

IEEE-488 Channel-Specific Messages

Commands for setting scan, response time, heater, and compensation per channel.

IEEE-488 Trip Point Messages

Commands for setting trip point values, hysteresis, and relay states.

IEEE-488 Diagnostic Messages

Commands for testing output signals and reading input bits on the I/O connector.

Maintenance and Troubleshooting

Maintenance and Troubleshooting General Information

General checks for wear, damage, and fuse replacement.

Cleaning the Unit

Instructions for cleaning the instrument with a damp cloth.

Replacing Fuses

Step-by-step guide for replacing the instrument's fuses.

Troubleshooting Common Problems

Describes common problems and offers solutions for the 670 instrument.

Troubleshooting: Noisy Pressure Reading

Identifies causes and solutions for noisy pressure readings.

Troubleshooting: Erratic Trip Point Relays

Diagnoses issues causing trip point relays to change state unexpectedly.

Troubleshooting: Overrange Readings

Addresses issues causing overrange pressure readings and provides diagnostic steps.

Test A: Cable or Electronics Malfunction

Procedure to isolate malfunctions between the cable and the instrument electronics.

Test B: Electronics Unit Malfunction

Procedure to localize malfunctions within the instrument's electronics.

Product Specifications

Performance Specifications

Details key performance parameters of the 670 instrument.

Display and Digital Communications Specs

Specifications for display accuracy, linearity, and update rate.

CE Compliance Specifications

Details compliance with EMC, Low-Voltage, and Safety Directives.

Physical Specifications

Details connectors, trip points, dimensions, and weight of the instrument.

Environmental Specifications

Specifies operating temperature and humidity ranges.

Electrical Specifications

Details power requirements and fuse types for the instrument.

Model Code Explanation

Initial Settings

Interface Cables for Type 274 Multiplexer

I/O Connector Cables

Describes CB270-2 and CB670-1/CB670-2 cables for I/O connection.

CB670-2 Y Cable Details

Details the CB670-2 Y-cable, its connectors, and available functions.

Y-Cable 25-pin Male Connector Pinout

Lists pin assignments for the 25-pin male connector of the Y-cable.

Y-Cable 25-pin Female Connector Pinout

Lists pin assignments for the 25-pin female connector of the Y-cable.