Hp 34970A Users Manual User's Guide

2015-02-09

• Contents
• Title Page
• HP 34970A Overview
  • The Front Panel at a Glance
  • The Front-Panel Menus at a Glance
  • Display Annunciators
  • The Rear Panel at a Glance
  • HP BenchLink Data Logger Software at a Glance
  • The Plug-In Modules at a Glance
    • HP 34901A 20-Channel Armature Multiplexer
    • HP 34902A 16-Channel Reed Multiplexer
    • HP 34903A 20-Channel Actuator / General-Purpose Switch
    • HP 34904A 4x8 Two-Wire Matrix Switch
    • HP 34905/6A Dual 4-Channel RF Multiplexers
    • HP 34907A Multifunction Module
    • HP 34908A 40-Channel Single-Ended Multiplexer
• In This Book
• Chapter 1: Quick Start
  • To Prepare the Instrument for Use
  • Installing HP BenchLink Data Logger Software
    • Installation Procedure
    • Creating Installation Floppy Disks
    • On-Line Help System
  • To Connect Wiring to a Module
  • To Set the Time and Date
  • To Configure a Channel for Scanning
  • To Copy a Channel Configuration
  • To Close a Channel
  • If the Instrument Does Not Turn On
  • To Replace the Power-Line Fuse
  • To Adjust the Carrying Handle
  • To Rack Mount the Instrument
• Chapter 2: Front-Panel Overview
  • Front-Panel Menu Reference
  • To Monitor a Single Channel
  • To Set a Scan Interval
  • To Apply Mx+B Scaling to Measurements
  • To Configure Alarm Limits
  • To Read a Digital Input Port
  • To Write to a Digital Output Port
  • To Read the Totalizer Count
  • To Output a DC Voltage
  • To Configure the Remote Interface
    • HP-IB Configuration
    • RS-232 Configuration
  • To Store the Instrument State
• Chapter 3: System Overview
  • Data Acquisition System Overview
    • The Computer and Interface Cable
    • Measurement Software
    • The HP 34970A Data Acquisition / Switch Unit
    • Plug-In Modules
    • System Cabling
    • Transducers and Sensors
    • Alarm Limits
  • Signal Routing and Switching
  • Measurement Input
    • The Internal DMM
    • Scanning
    • Scanning With External Instruments
    • The Multifunction Module
  • Control Output
    • The Multifunction Module
    • The Actuator / General-Purpose Switch
• Chapter 4: Features and Functions
  • SCPI Language Conventions
    • Rules for Using a Channel List
  • Scanning
    • Rules for Scanning
    • Power Failure
    • Adding Channels to a Scan List
    • Scan Interval
      • Interval Scanning
      • Scan Once
      • External Scanning
      • Scanning on Alarm
    • Scan Count
    • Reading Format
    • Channel Delay
    • Automatic Channel Delays
    • Viewing Readings Stored in Memory
  • Single-Channel Monitoring
  • Scanning With External Instruments
  • General Measurement Configuration
    • Measurement Range
    • Measurement Resolution
    • Custom A/D Integration Time
    • Autozero
  • Temperature Measurement Configuration
    • Measurement Units
    • Thermocouple Measurements
    • RTD Measurements
    • Thermistor Measurements
  • Voltage Measurement Configuration
    • DC Input Resistance
    • AC Low Frequency Filter
  • Resistance Measurement Configuration
    • Offset Compensation
  • Current Measurement Configuration
    • AC Low Frequency Filter
  • Frequency Measurement Configuration
    • Low Frequency Timeout
  • Mx+B Scaling
  • Alarm Limits
    • Viewing Stored Alarm Data
    • Using the Alarm Output Lines
    • Using Alarms With the Multifunction Module
  • Digital Input Operations
  • Totalizer Operations
  • Digital Output Operations
  • DAC Output Operations
  • System-Related Operations
    • State Storage
    • Error Conditions
    • Self-Test
    • Display Control
    • Real-Time System Clock
    • Internal DMM Disable
    • Firmware Revision Query
    • Relay Cycle Count
    • SCPI Language Version Query
  • Remote Interface Configuration
    • HP-IB Address
    • Remote Interface Selection
    • Baud Rate Selection (RS-232)
    • Parity Selection (RS-232)
    • Flow Control Selection (RS-232)
  • Calibration Overview
    • Calibration Security
      • To Unsecure for Calibration
      • To Secure Against Calibration
      • To Change the Security Code
    • Calibration Message
    • Calibration Count
  • Factory Reset State
  • Instrument Preset State
  • Multiplexer Module Default Settings
  • Module Overview
    • HP 34901A 20-Channel Multiplexer
    • HP 34902A 16-Channel Multiplexer
    • HP 34903A 20-Channel Actuator
    • HP 34904A 4x8 Matrix Switch
    • HP 34905A/6A Dual 4-Channel RF Multiplexers
    • HP 34907A Multifunction Module
    • HP 34908A 40-Channel Single-Ended Multiplexer
• Chapter 5: Remote Interface Reference
  • SCPI Command Summary
    • Rules for Using a Channel List
    • Rules for Using scan_list and ch_list Parameters
    • Scan Measurement Commands
    • Monitor Commands
    • Scan Configuration Commands
    • Scan Statistics Commands
    • Scan Memory Commands
    • Scanning With an External Instrument
    • Temperature Configuration Commands
    • Voltage Configuration Commands
    • Resistance Configuration Commands
    • Current Configuration Commands
    • Frequency and Period Configuration Commands
    • Mx+B Scaling Commands
    • Alarm Limit Commands
    • Digital Input Commands
    • Totalizer Commands
    • Digital Output Commands
    • DAC Output Commands
    • Switch Control Commands
    • Scan Triggering Commands
    • State Storage Commands
    • System-Related Commands
    • Interface Configuration Commands
    • Status System Commands
    • Calibration Commands
    • Service-Related Commands
    • IEEE 488.2 Common Commands
  • Simplified Programming Overview
    • Using the MEASure? Command
      • Example: Using MEASure?
    • Using the CONFigure Command
      • Example: Using CONFigure With READ?
      • Example: Using CONFigure With INITiate and FETCh?
    • Using the range and resolution Parameters
    • Using the READ? Command
      • Example: Using CONFigure With READ?
    • Using the INITiate and FETCh? Commands
      • Example: Using CONFigure With INITiate and FETCh?
  • The MEASure? and CONFigure Commands
    • MEASure? Command Syntax
    • CONFigure Command Syntax
  • Setting the Function, Range, and Resolution
  • Temperature Configuration Commands
    • General Temperature Commands
    • Thermocouple Commands
    • RTD Commands
    • Thermistor Commands
  • Voltage Configuration Commands
  • Resistance Configuration Commands
  • Current Configuration Commands
  • Frequency Configuration Commands
  • Scanning Overview
    • Rules for Scanning
    • Scan Interval
    • Scanning Commands
    • Reading Format Commands
    • Scan Statistics Commands
    • Scan Memory Commands
  • Single-Channel Monitoring Overview
  • Scanning With an External Instrument
  • Mx+B Scaling Overview
    • Mx+B Scaling Commands
  • Alarm System Overview
    • Alarm Limit Commands
    • Alarm Output Commands
    • Digital I/O Alarm Commands
  • Digital Input Commands
  • Totalizer Commands
  • Digital Output Commands
  • DAC Output Commands
  • Switch Control Commands
  • State Storage Commands
  • System-Related Commands
  • Interface Configuration Commands
  • RS-232 Interface Configuration
    • RS-232 Configuration Overview
    • RS-232 Flow Control Modes
    • RS-232 Data Frame Format
    • Connection to a Computer or Terminal
    • RS-232 Troubleshooting
  • Modem Communications
  • The SCPI Status System
    • What is a Condition Register?
    • What is an Event Register?
    • What is an Enable Register?
    • HP 34970A Status System
    • The Status Byte Register
    • Using Service Request (SRQ) and Serial Poll
    • Using *STB? to Read the Status Byte
    • Using the Message Available Bit (MAV)
    • To Interrupt Your Bus Controller Using SRQ
    • To Determine When a Command Sequence is Completed
    • The Questionable Data Register
    • The Standard Event Register
    • The Alarm Register
    • The Standard Operation Register
  • Status System Commands
    • Status Byte Register Commands
    • Questionable Data Register Commands
    • Standard Event Register Commands
    • Alarm Register Commands
    • Standard Operation Register Commands
    • Miscellaneous Status Register Commands
  • Calibration Commands
  • Service-Related Commands
  • An Introduction to the SCPI Language
    • Command Format Used in This Manual
    • Command Separators
    • Using the MIN and MAX Parameters
    • Querying Parameter Settings
    • SCPI Command Terminators
    • IEEE-488.2 Common Commands
    • SCPI Parameter Types
      • Numeric Parameters
      • Discrete Parameters
      • Boolean Parameters
      • String Parameters
      • Channel List Parameters
  • Using Device Clear
• Chapter 6: Error Messages
  • Execution Errors
  • Instrument Errors
  • Self-Test Errors
  • Calibration Errors
  • Plug-In Module Errors
• Chapter 7: Application Programs
  • Example Programs for Excel 7.0
  • Example Programs for C and C++
• Chapter 8: Tutorial
  • System Cabling and Connections
    • Cable Specifications
    • Grounding Techniques
    • Shielding Techniques
    • Separation of High-Level and Low-Level Signals
    • Sources of System Cabling Errors
      • Radio Frequency Interference
      • Thermal EMF Errors
      • Noise Caused by Magnetic Fields
      • Noise Caused by Ground Loops
      • Low-Level AC Measurement Errors
  • Measurement Fundamentals
    • The Internal DMM
    • Temperature Measurements
      • RTD Measurements
      • Thermistor Measurements
      • Thermocouple Measurements
      • Thermocouple Types
    • Sources of Error in Thermocouple Measurements
      • Reference Junction Error
      • Diffusion Error
      • Shunt Impedance
      • Shielding
      • Calculation Error
    • DC Voltage Measurements
      • Signal Conditioning for DC Measurements
    • Sources of Error in DC Voltage Measurements
      • Common Mode Rejection
      • Noise Caused by Injected Current
      • Loading Errors Due to Input Resistance
      • Loading Errors Due to Input Bias Current
    • AC Voltage Measurements
      • Signal Conditioning for AC Measurements
      • True RMS AC Measurements
      • Making High-Speed AC Measurements
    • Sources of Error in AC Voltage Measurements
      • Crest Factor Errors (non-sinusoidal inputs)
      • Example: Calculating Measurement Error
      • AC Loading Errors
      • Low-Level AC Measurement Errors
      • Measurements Below Full Scale
      • Temperature Coefficient and Overload Errors
    • Current Measurements
    • Sources of Error in DC Current Measurements
    • Sources of Error in AC Current Measurements
    • Resistance Measurements
      • 4-Wire Ohms Measurements
      • Offset Compensation
    • Sources of Error in Resistance Measurements
      • External Voltages
      • Settling Time Effects
      • High-Resistance Measurement Errors
    • Strain Gage Measurements
      • Stress
      • Strain Sensors
      • Common Uses for Strain Gages
      • Making Strain Gage Measurements
      • Temperature Effects
    • Frequency and Period Measurements
      • Sources of Error in Frequency and Period Measurements
  • Low-Level Signal Multiplexing and Switching
    • One-Wire (Single-Ended) Multiplexers
    • Two-Wire Multiplexers
    • Four-Wire Multiplexers
    • Signal Routing and Multiplexing
    • Sources of Error in Multiplexing and Switching
  • Actuators and General-Purpose Switching
    • Snubber Circuits
    • RC Protection Networks
    • Using Varistors
    • Using Attenuators
  • Matrix Switching
    • Combining Matrices
  • RF Signal Multiplexing
    • Sources of Error in RF Switching
  • Multifunction Module
    • Digital Input
    • Digital Output
    • Using an External Pull-Up
    • Driving External Switches
    • Totalizer
    • Totalizer Errors
    • Voltage (DAC) Output
    • DAC Errors
  • Relay Life and Preventative Maintenance
    • Relay Life
    • Relay Load
    • Switching Frequency
    • Replacement Strategy
• Chapter 9: Specifications
  • DC, Resistance, and Temperature Accuracy Specifications
  • DC Measurement and Operating Characteristics
  • AC Accuracy Specifications
  • AC Measurement and Operating Characteristics
  • Measurement Rates and System Characteristics
  • Module Specifications
  • Typical AC Performance Graphs
  • Software Specifications
  • Product and Module Dimensions
  • To Calculate Total Measurement Error
    • Understanding the “ % of reading ” Error
    • Understanding the “ % of range ” Error
    • Total Measurement Error
    • Example: Computing Total Measurement Error
  • Interpreting Internal DMM Specifications
    • Number of Digits and Overrange
    • Sensitivity
    • Resolution
    • Accuracy
      • 24-Hour Accuracy
      • 90-Day and 1-Year Accuracy
    • Temperature Coefficients
  • Configuring for Highest Accuracy Measurements
• Declaration of Conformity
• Warranty Information
• Index