Manuali utente per Lakeshore Learning Materials 642

Sommario

• INTRODUCTION

  1
• GENERAL

  1
• DESCRIPTION

  1
• SPECIFICATIONS

  1
• SAFETY SUMMARY

  1
• SAFETY SYMBOLS

  1
• Model 642 Front Panel

  1
• MAGNET SYSTEM DESIGN, INSTALLATION, AND OPERATION

  2
• GENERAL

  2
• INTRODUCTION

  2
• MAGNET CONSTRUCTION

  2
• CONNECTING THE MAGNET

  2
• Water Hose Connection

  2
• Magnet Coil Wiring

  2
• Temperature Switches and Flow Switches

  2
• Cooling Water and Water Valve

  2
• Grounding

  2
• Final Check-Out

  2
• ELECTROMAGNET OPERATION

  2
• Air Gap and Pole Caps

  2
• Maximum Power and Current

  2
• Operation Under Field Control

  2
• Avoiding Cooling Water Condensation

  2
• A Typical Electromagnet

  2
• Typical Magnet Water Hook-Up

  2
• Typical Magnet Coil Wiring Showing Series and Parallel Connections

  2
• Typical Thermal Switch, Flow Switch and Valve Wiring

  2
• Typical Curves of Field vs. Current for Various Air Gaps and Pole Cap Sizes

  2
• INSTALLATION

  3
• GENERAL

  3
• INSPECTION AND UNPACKING

  3
• Moving and Handling

  3
• REAR PANEL DEFINITION

  3
• POWER WIRING AND SET-UP

  3
• Line Voltage Selection

  3
• Circuit Breaker Setting

  3
• Start-Up Fuses

  3
• Cable Entry

  3
• Power Input Terminals

  3
• Wiring Cover

  3
• Mains Wiring

  3
• MAGNET CONNECTOR

  3
• AUXILIARY CONNECTOR

  3
• POWER SUPPLY CONNECTOR

  3
• COOLING WATER

  3
• MAGNET CABLE CONNECTIONS

  3
• ANALOG INPUT/OUTPUT CONNECTIONS

  3
• External Current Programming

  3
• Output Current and Voltage Monitors

  3
• COMPUTER INTERFACE

  3
• RS-232C Interface Connection

  3
• IEEE-488 Interface Connection

  3
• CHASSIS CONNECTION

  3
• DETACHABLE HANDLES

  3
• RACK MOUNTING

  3
• Model 642 Rear Panel

  3
• Voltage Change Detail

  3
• Circuit Breaker

  3
• Fuses

  3
• Typical Cable Entry with Bushing

  3
• Typical Power Input Wiring

  3
• Wiring Cover Installation

  3
• Typical Magnet Connector Wiring

  3
• Typical Auxiliary Connector Wiring

  3
• Typical Power Supply Connector Wiring

  3
• Typical Water Hose Connection

  3
• Water Valve Connection

  3
• Output Cable Connection

  3
• Output Lug Cover Installation

  3
• Analog Input/Output Connector

  3
• Mounting Hole Pattern

  3
• Rear Panel Connector Identification

  3
• Voltage and Current Selection

  3
• Current Capacity and Total Lead Lengths

  3
• OPERATION

  4
• GENERAL

  4
• TURNING POWER ON

  4
• DISPLAY DEFINITION

  4
• LED ANNUNCIATORS

  4
• Fault LED

  4
• Compliance LED

  4
• Power Limit LED

  4
• Ramping LED

  4
• Remote LED

  4
• KEYPAD DEFINITION

  4
• General Keypad Operation

  4
• DISPLAY SETUP

  4
• SETTING OUTPUT CURRENT

  4
• CURRENT RAMP RATE

  4
• RAMP SEGMENTS

  4
• PAUSE RAMP

  4
• ZERO OUTPUT

  4
• MAXIMUM SETTING LIMITS

  4
• Maximum Output Current

  4
• Maximum Current Ramp Rate

  4
• MAGNET WATER

  4
• INTERNAL WATER

  4
• ERROR STATUS DISPLAY

  4
• EXTERNAL CURRENT PROGRAMMING

  4
• LOCKING THE KEYPAD

  4
• COMPUTER INTERFACE

  4
• Changing Serial Baud Rate

  4
• Changing IEEE-488 Interface parameters

  4
• DEFAULT PARAMETER VALUES

  4
• Model 642 Power Push Buttons

  4
• Model 642 Keypad and LED Layout

  4
• Model 642 LED Descriptions

  4
• Model 642 Key Descriptions

  4
• Default Parameter Values

  4
• COMPUTER INTERFACE OPERATION

  5
• GENERAL

  5
• IEEE-488 INTERFACE

  5
• Changing IEEE-488 Interface Parameters

  5
• Remote/Local Operation

  5
• IEEE-488 Command Structure

  5
• Bus Control Commands

  5
• Common Commands

  5
• Device Specific Commands

  5
• Message Strings

  5
• Status System

  5
• Overview

  5
• Condition Registers

  5
• Event Registers

  5
• Enable Registers

  5
• Status Byte Register

  5
• Service Request Enable Register

  5
• Reading Registers

  5
• Programming Registers

  5
• Clearing Registers

  5
• Status Register Sets

  5
• Standard Event Status Register

  5
• Operation Event Register Set

  5
• Error Status Register Sets

  5
• Hardware Error Status Register Set

  5
• Operational Error Status Register Set

  5
• Status Byte and Service Request (SRQ)

  5
• Status Byte Register

  5
• Service Request Enable Register

  5
• Using Service Request (SRQ) and Serial Poll

  5
• Using Status Byte Query (*STB)

  5
• Using Message Available (MAV) Bit)

  5
• Using Operation Complete (*OPC) and Operation Complete Query (*OPC?)

  5
• IEEE-488 Interface Example Programs

  5
• IEEE-488 Interface Board Installation for Visual Basic Program

  5
• Visual Basic IEEE-488 Interface Program Setup

  5
• Program Operation

  5
• Troubleshooting

  5
• SERIAL INTERFACE OVERVIEW

  5
• Changing Baud Rate

  5
• Physical Connection

  5
• Hardware Support

  5
• Character Format

  5
• Message Strings

  5
• Message Flow Control

  5
• Serial Interface Example Programs

  5
• Visual Basic Serial Interface Program Setup

  5
• Program Operation

  5
• Troubleshooting

  5
• COMMAND SUMMARY

  5
• Interface Commands (Alphabetical Listing)

  5
• Model 642 Status System

  5
• Standard Event Status Register

  5
• Operation Event Register

  5
• Hardware Error Status Register

  5
• Operational Error Status Register

  5
• Status Byte Register and Service Request Enable Register

  5
• GPIB0 Setting Configuration

  5
• DEV 12 Device Template Configuration

  5
• Typical National Instruments GPIB Configuration from IBCONF.EXE

  5
• Binary Weighting of an 8-Bit Register

  5
• Register Clear Methods

  5
• Programming Example to Generate an SRQ

  5
• IEEE-488 Interface Program Control Properties

  5
• Visual Basic IEEE-488 Interface Program

  5
• Serial Interface Specifications

  5
• Serial Interface Program Control Properties

  5
• Visual Basic Serial Interface Program

  5
• Command Summary

  5
• OPTIONS AND ACCESSORIES

  6
• GENERAL

  6
• ACCESSORIES INCLUDED

  6
• ACCESSORIES AVAILABLE

  6
• SERVICE

  7
• GENERAL

  7
• CONTACTING LAKE SHORE CRYOTRONICS

  7
• RETURNING PRODUCTS TO LAKE SHORE

  7
• LINE VOLTAGE SELECTION

  7
• CIRCUIT BREAKER SETTING

  7
• POWER LINE FUSE REPLACEMENT

  7
• ERROR MESSAGES

  7
• ELECTROSTATIC DISCHARGE

  7
• Identification of Electrostatic Discharge Sensitive Components

  7
• Handling Electrostatic Discharge Sensitive Components

  7
• ENCLOSURE BOTTOM REMOVAL AND REPLACEMENT

  7
• Removal

  7
• Installation

  7
• FIRMWARE REPLACEMENT

  7
• CONNECTOR AND CABLE DEFINITIONS

  7
• Analog I/O Connector

  7
• Magnet Connector

  7
• Auxiliary Connector

  7
• Power Supply Connector

  7
• RS-232C Serial Interface Connector

  7
• Serial Interface Cable Wiring

  7
• IEEE-488 Parallel Interface Connector

  7
• CALIBRATION

  7
• Calibration Interface

  7
• Calibration Equipment

  7
• Calibration Procedure

  7
• Calibrate Current Output Zero

  7
• Calibrate Current Reading Zero

  7
• Calibrate Output Voltage Reading Zero

  7
• Calibrate External Program Voltage Reading Zero

  7
• Calibrate Output Current Gain (Span)

  7
• Calibrate Current Reading Gain

  7
• Calibrate Voltage Reading Gain

  7
• Calibrate External Current Programming Voltage Reading Gain

  7
• Calibrate Specific Interface Commands

  7
• Model 642 Rear Panel

  7
• Voltage Change Detail

  7
• Circuit Breaker

  7
• Fuse Holder Detail

  7
• Board Locations

  7
• Digital Board Parts Locations

  7
• Analog I/O Connector Details

  7
• Magnet Connector Details

  7
• Auxiliary Connector Detail

  7
• Power Supply Connector Details

  7
• RS-232C (DTE) Connector Details

  7
• IEEE-488 Connector Details

  7
• Voltage and Current Selection

  7
• Instrument Hardware Errors

  7
• Operational Errors

  7
• IEEE-488 Address

  12
• Clear Interface Cmd

  29
• Event Status Enable Cmd

  29
• Event Status Enable Query

  30
• Event Status Register Query

  30
• Identification Query

  30
• Operation Complete Cmd

  30
• Operation Complete Query

  30
• Reset Instrument Cmd

  30
• Service Request Enable Cmd

  31
• Service Request Enable Query

  31
• Status Byte Query

  31
• Self-Test Query

  31
• Wait-To-Continue Cmd

  31
• RS-232C Baud Rate Cmd

  31
• RS-232C Baud Rate Query

  31
• Factory Defaults Cmd

  32
• Display Parameter Cmd

  32
• Display Parameter Query

  32
• Error Clear Cmd

  32
• Error Status Query

  32
• Error Status Enable Cmd

  32
• Error Status Enable Query

  32
• Internal Water Mode Query

  33
• Keypad Status Query

  33
• Limit Output Settings Query

  33
• Error Status Register Query

  33
• IEEE-488 Interface Parameter Cmd

  33
• IEEE-488 Interface Parameter Query

  33
• Internal Water Mode Command

  33
• Limit Output Settings Cmd

  34
• Keypad Lock Cmd

  34
• Keypad Lock Query

  34
• Magnet Water Mode Command

  34
• Magnet Water Mode Query

  34
• IEEE Interface Mode Cmd

  34
• IEEE Interface Mode Query

  34
• Operational Status Query

  35
• Operational Status Enable Cmd

  35
• Operational Status Enable Query

  35
• Operational Status Register Query

  35
• Current Ramp Rate Setting Cmd

  35
• Current Ramp Rate Setting Query

  35
• Current Output Reading Query

  35
• Output Voltage Reading Query

  36
• Ramp Segments Enable Cmd

  36
• Ramp Segments Enable Query

  36
• Ramp Segments Parameters Cmd

  36
• Ramp Segments Parameters Query

  36
• Output Current Setting Cmd

  36
• Output Current Setting Query

  36
• Stop Output Current Ramp Cmd

  37
• External Program Mode Cmd

  37
• External Program Mode Query

  37
• Lock Code

  123
• Baud

  9600