RIGOL M300, M301, M302 Users guide

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RIGOL

User’s Guide

M300 Series

Data Acquisition/Sw itch System

May 2015

RIGOL Technologies, Inc.

RIGOL

Guaranty and Declaration

Trademark Information

RIGOL is a registered trademark of RIGOL Technologies, Inc.

Publication Number

UGC07111-1110

Software Version

00.02.00.04.19 Software upgrade might c hange or add prod uct feat ures. Please a cqui re the la test version of the manual from RIGOL website or contact RIGOL to upgrade the software.

Notices

 RIGOL products are covered by P.R.C. and foreign patents, issued and

pending.

 RIGOL reserves the right to modify or change parts of or all the

specif ications and pricing policies at company’s sole decision.

 Information in this publica tion re places all previ ously corresponding material.  Information in this publication is subject to change without notice.  RIGOL shall not be liable for either incidental or consequential losses in

connection with the furnishing, use or performance of this manual as well as any information contained.

 Any part of this document is forbidden to be copied, photocopied or

rearranged without prior written approval of RIGOL.

Product Certification

RIGOL guara nte es t his product conforms t o t he national and indus trial standards in China as well as the ISO9001:2008 stan da rd and the ISO14001:20 04 standard. Other international standard conforman ce certifications are in progress.

If you have any problem or requirement when using our products or this manual, please contact RIGOL. E-mail: service@rigol.com Website: www.rigol.com

M300 User’s Guide I

RIGOL

Safety Requirement

General Safety Summary

Please review the following safety precautions carefully before putting the instrument into operation so as to avoid any personal injury or damage t o t he instrument and any product connected to it. To prevent potential hazards, please use the instrument only specified by this manual.

Use Proper Power Cord.

Only the power cor d desig ned fo r the ins trument an d authorized for us e within the local country could be used.

Ground the Instrument.

The instrument is grounded through the Protective Earth lead of the power cord. To avoid electric shock, it is essential to connect the earth terminal of the power cord to the Protective Earth terminal before connecting any inputs or outputs.

Connect the Probe Correctly.

If a probe is used, do not connect the ground lead to high voltage since it has isobaric electric potential as the ground.

Observe All Terminal Ratings.

To avoid fir e or sh ock hazard, observe all ratings and markers on the instrument and check your manual for more information about ratings before connecting the instrument.

Use Proper Overvoltage Protection.

Make sure that no overvoltage (such as that caused by a thunderstorm) can re ach the product, or else th e op erator might be exposed to the danger of electrical shock.

Do Not Operate Without Covers.

Do not operate the instrument with covers or panels removed.

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Do Not Insert Anything Into the Holes of Fan.

Do not insert anything int o the holes of the fan to avoid damaging t he inst rument .

Use Proper Fuse.

Please use the specified fuses.

Avoid Circuit or Wire Exposure.

Do not touch exposed junctions and components when the unit is powered.

Do Not Operate With Suspected Failures.

If you suspect damage occurs to the instrument, have it inspected by RIGOL authorized personnel before further oper at io ns. Any maintenance, adjustment or replacement especially to circuits or accessories must be performed by RIGOL authorized personnel.

Keep Well Ventilation.

Inadequate ventilation may cause an increase of instrument temperature which would cause damage to the instrument. So please keep the instrument well ventilated and inspect the intake and fan regularly.

Do Not Operate in Wet Conditions.

In order to avoid short circuiting to the interior of the device or electric shock, please do not operate the instrument in a humid environment.

Do Not Operate in an Explosive Atmosphere.

In order to avoid damage to the device or personal injuries, it is important to operat e the devi ce away from an explosive atmospher e.

Keep Product Surfaces Clean and Dry.

T o a void the influence of dus t and/or moisture in the air, please keep the surface of the device clean and dry.

Electrostatic Prevention.

Operate the instrument in an electrostatic discharge protective environment to avoid damage induced by static discharges. Always ground both the internal and external conductors of cables to release static before making connections.

M300 User’s Guide III

RIGOL

Proper Use of Battery.

If a battery is supplied, it must not be exposed to high temperature or in contact with fire. Keep it out of the reach of children. Improper change of battery (n ote: lithium battery) may cause explosion. Use RIGOL specified battery only.

Handling Safety.

Please handle with care during transportation to avoid damage t o keys, knob interfaces and other parts on the panels.

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CAUTION DANGER

Hazardous

Safety

Protective Terminal

Chassis

Test

Safety Terms and Symbols

Terms Used in this Manual. These terms may appear in this manual:

WARNING

Warning statements indicate conditions or practices that could result in injury or loss of life.

Caution statements indicate conditions or practices that could result in damage to this product or other property.

Terms Used on the Product. These terms may appear on the Product:

It calls attention to an operation, if not correctly pe rformed, could

result in injury or hazard immediately.

WARNING It calls attention to an operation, if not correctly pe rformed, could

result in

CAUTION It calls attention to an operation, if not correctly pe rformed, could

result in product.

Symbols Used on the Product. These symbols may appear on the product:

potential injury or hazard.

damage to the product or other devices connected to the

Voltage

Warning

Earth

Ground

M300 User’s Guide V

RIGOL

Allgemeine Sicherheits Informationen

Überprüfen Sie diefolgenden Sicherheitshinweise sorgfältigumPersonenschädenoderSchäden am Gerätundan damit verbundenen weiteren Gerätenzu vermeiden. Zur Vermeidung vonGefa hren, nutze n S ie bitte das Gerät nur so, wiein diesem Handbuchangegeben.

Um Feuer oder Verletzungen zu vermeiden, verwenden Sie ein ordnungsgemäßes Netzkabel.

Verwenden Sie für dieses Gerät nur das für ihr Land zugelassene und genehmigte Netzkabel.

Erden des Gerätes.

Das Gerät ist durch den Schutzleiter im Netzkabel geerdet. Um Gefahren durch elektrischen Schlag zu vermeiden , ist es unerlässlich, die Er dung durchzufüh ren. Erst dann dürfen weitere Ein- oder Ausgä nge verbunden werden .

Anschluss einesTastkopfes.

Die Erdungsklemmen der Sonden sindauf dem gleichen Spannungspegel des Instruments geerdet. SchließenSie die Erdungsklemmen an keine hohe Spannung an.

Beachten Sie alle Anschlüsse.

Zur Vermeidung von Feuer oder Stromschlag, beachten Sie alle Bemerkungen und Markierungen auf dem Instrument. Bef olgen Sie die Bedienun gsanleitung für weitere Informationen, bevor Sie weitere Anschlüsse an das Instrument legen.

Verwenden Sie einen geeigneten Überspannungsschutz.

Stellen Sie sicher, daß keinerlei Überspannung (wie z.B. durch Gewitter verursacht) das Gerät erreichen kann. Andernfallsbestehtfür den Anwender die GefahreinesStromschlages.

Nicht ohne Abdeckung einschalten.

Betreiben Sie das Gerät nicht mit entfernten Gehäuse-Abdeckungen.

Betreiben Sie das Gerät nicht geöffnet.

Der Betrieb mit offenen oder entfernten Gehäuseteilen ist nicht zulässig. Nichts in entsprechende Öffnungen stecken (Lüfter z.B.)

Passende Sicherung verwenden.

Setzen Sie nur die spezifikationsgemäßen Sicherungen ein.

Vermeiden Sie ungeschützte Verbindungen.

Berühren Sie keine unisolierten Verbindungen o der Baugrup pen, während das Gerät

VI M300 User’s Guide

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in Betrieb ist.

Betreiben Sie das Gerä t n ic h t i m Fehlerfall .

Wenn Sie am Gerät einen Defekt vermuten, sorgen Sie dafür, bevor Sie das Gerät wieder betreiben, dass eine Untersuchung durch RIGOL autorisiertem Personal durchgeführt wird. Jedwede W artun g, Einstellarbeit en oder Austausch v on Teilen am Gerät, sowie am Zubehör dürfen nur von RIGOL aut ori s i e rt e m Personal durchgeführt werden.

Belüftung sicherstellen.

Unzureichende Belüftung kann zu Temperaturanstiegen und somit zu thermischen Schäden am Gerät führen. Stellen Sie deswegen die Belüftung sicher und kontrollieren regelmäßig Lüfter und Belüftungsöffnungen.

Nicht in feuc h te r Um g ebung betreiben.

Zur Vermeidun g von Kurzschluß im Geräteinne ren und Stromschlag betreiben Sie das Gerät bitte niemals in feuchter Umgebung.

Nicht in explosiver Atmosphäre betreiben.

Zur Ve rm e idung von Personen- und Sachschäden ist es unumgänglich, das Gerät ausschließlich fernab jedweder explosiven At mosphäre zu betreiben.

Geräteoberflächen sauber und trocken halten.

Um den Einfluß von Staub und Feuchtigkeit aus der Luft auszuschließen, halten Sie bitte die Geräteoberflächen sauber und trocken.

Schutz gegen elektrostatische Entladung (ESD).

Sorgen Sie für eine elektrostatisch geschützte Umgebung, um somit Schäden und Funktionsstörungen durch ESD zu vermeiden. Erden Sie vor dem Anschluß immer Innen- und Außenleiter der V erbindungsleitung, um st atische Aufladung zu entladen.

Die richtige Verwendung desAkku.

Wenneine Batterieverwendet wird, vermeiden Sie hohe Temperaturen bzw. Feuer ausgesetzt werden. Bewahren Sie es außerhalbder Reichweitevon Kindern auf. Unsachgemäße Änderung derBatterie (Anmerkung: Lithium-Batterie) kann zu einer Explosion führen. VerwendenSie nur von RIGOL angegebenenAkkus.

Sicherer Transport.

Transportieren Sie das Gerät sorgfältig (Verpackung!), um Schäden an Bedienelementen, Anschlüssen und anderen Teilen zu vermeiden.

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WARNING

Schäden oder den Tod von Personen zur Folge haben können.

CAUTION

Schäden am Gerät hervorrufen können.

DANGER

weist auf eine Verletzung ode r Gefäh r dun g hin, die sof ort geschehen kann.

WARNING

weist auf eine Verletzung oder Gefäh rdung hin, die möglicherweise nicht sofort geschehen.

CAUTION

weist auf eine Verletzun g ode r Gefährdung hin und bedeutet, dass Gegenstände auftreten kann.

Sicherheits Begriffe und Symbole

Begriffe in diesem Guide. Diese Begrif fe können in diesem Handbuch aufta uchen:

Die Kennzeichnung WARNING beschreibt Gefahren quellen die leibliche

Die Kennzeichnung Caution (Vorsicht) beschreibt Gefahrenquellen die

Begriffe auf dem Produkt. Diese Bedingungen können auf dem Produkt erscheinen:

eine mögliche Beschädigung des Instruments oder anderer

Symbole auf dem Produkt. Diese Symbole können auf dem Produkt erscheinen:

GefährlicheS pannung

SicherheitsHinweis

Schutz-erde Gehäusemasse Erde

VIII M300 User’s Guide

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CAUTION

WARNING

supply.

General Care and Cleaning

General Care

Do not store or leave the instrument where it may be exposed to direct sunlight for long periods of time.

Cleaning

Clean the instrument regularly according to its operating conditions. To clean the exterior surface, perform the following steps:

1. Disconnect the instrument from all power sources.

2. Clean the loose dust on the outside of the i nstrument with a lint -f ree cloth (with a mild detergent or water). When cleaning the LCD, take care to av oid sca rifying it.

To avoid damag e t o t he instrument, do not expose it to caustic liquids.

To avoid short-circuit and personal injury resulting from moisture, make sure the instrument is completely dry before reconnecting it to power

Environmental Consideratio ns

The following symbol indicates that this product complies with the applicable WEEE Directive 2002/96/EC.

Product End-of-Life Handling

The equipment may c ontain s ubstan ces that could b e ha rmful t o the envi ronm ent o r human health. In order to avoid release of such substances into the environment an d harm to human health, we encourage you to recycle this product in an appropriate system that will ensure that most of the materials are reused or recycled appropriately. Please contact your local authorities for disposal or recycling information.

M300 User’s Guide

RIGOL

M300 Overview

The M300 series data acquisition/switch system provides 5 slots to accept any combina tion of 8 kinds of plug-in modules, including a DMM module, multiple multiplexers, an actuator, a matrix switch module and a multifunction module . With its modular structure, it combines precision measurement capability with flexible signal connections and can provide versatile solutions for the applications that require multiple points or signals t o be tested. This can be especially useful in product performance testing during the R&D phase, and automatic test during production process.

It com e s with a 4.3 inch high-re s olution color LCD, us e r -friendly interface design, easy-to-use keyboard layout as well as clear key backlight and operation prompts. The M300 is extremely flexible and easy to use. Fo r rem ote cont r ol ve rsat ility, it comes with RS232, USB, LAN and GPIB interfaces standard.

Main Features:

 Up to 320 switch channels per mainframe (with very low cost per channel)  Can run independently without PC  USB data logging  Interval scanning with storage of up to 100,000 time-stamped readings  8 modules supported  6½ digit DMM can be inserted into any slot. It als o supports multiple

measurement functions, including DCV, DCI, ACV, ACI, 2WR, 4WR, PERIOD, FREQ, TEMP (Thermocouple, Thermistor and RTD) and any sensor.

 Standard multiple communication interface: USB Device, USB Host, GPIB,

LAN(LXI Core 2011 Device) and RS232

 Standard SCPI commands for remote programming capability  Math statistics function : AV G , MA X, MIN and SDEV  Friendly interface  Built-in help system  Multiple system language  4.3 inch c olor LCD  PC control and analysis software

X M300 User’s Guide

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Document Overview

Main topics in this manual:

Chapter 1 Quick Guide

This chapter introduces the front panel, rear panel, user interface and plug-in modules of the M300 as well as the precautions when using it for the first time.

Chapter 2 Front Panel Operations

This chapter introduces in details t he fr ont pane l ope ration methods and f unctions o f M300.

Chapter 3 To Use External DMM

This chapter illustrates the method of connecting external DMM and configuring scan list to scan.

Chapter 4 Remote Control

This chapter introdu ces how to control the M300 remotely.

Chapter 5 Troubleshooting

This chapter introduces the commonly encountered failures and their solutions.

Chapter 6 Specifications

This chapter provides the performance specifications and general technical parameters of the M300.

Chapter 7 Appendix

This chapter provides the accessory list of the M300 as well as service and support information.

M300 User’s Guide

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Format Conventions in this Manual:

1. Key:

The front panel key is denoted by the format of “Text Box + Key Name (Bold)”. For example, Utility denotes the Utility key.

2. Menu:

The menu is denoted by th e format of “Chara cter Shading + Menu W ord (Bold)”. For examp le, System denotes the system menu item of the Utility function key.

3. Operation Step:

The next step of operation is de note d by a n arr ow “ ”. For exa mple , Utility  System denotes pressing Utility at the front panel and then pressing System.

User Manuals of This Product:

The main user manuals of this product include the Qui ck Guide , User’s Guide, Programming Guide and Data sheet. Users can dow nload the desire d manual fr om www.rigol.com.

XII M300 User’s Guide

Contents RIGOL

XIII

Contents

Guaranty and Declaration ......................................................................... I

Safety Requirement ................................................................................ II

General Safety Summary ........................................................................... II

Safety Terms and Symbols ........................................................................ V

Allgemeine Sicherheits Informationen ........................................................ VI

Sicherheits Begriffe und Symbole ............................................................ VIII

General Care and Cleaning ....................................................................... IX

Environmental Considerations ................................................................... IX

M300 Overview ........................................................................................ X

Document Overview ............................................................................... XI

Chapter 1 Quick Guide ........................................................................ 1-1

General Inspection ................................................................................ 1-2

Appearance and Dim e nsions ................................................................... 1-3

Front Panel ........................................................................................... 1-4

Rear Panel ............................................................................................ 1-8

Power On Inspection ............................................................................ 1-12

User Interface ...................................................................................... 1-13

To Input Filename ................................................................................ 1-14

Plug-in Module Overview ....................................................................... 1-16

Outside View Drawing of the Module................................................ 1-16

Insert the Module into the Mainframe .............................................. 1-17

Module Overview ........................................................................... 1-18

To Use the Built-in Help System ............................................................. 1-20

Measurement Connections .................................................................... 1-21

To Replace the Fuse ............................................................................. 1-25

Menu Quick Navigation ......................................................................... 1-26

Config .......................................................................................... 1-26

Monitor ......................................................................................... 1-27

View Switch Key ............................................................................ 1-27

Control ......................................................................................... 1-28

Alarm Channel Setting Ke ys ............................................................ 1-28

Chapter 2 Front Panel Operations ...................................................... 2-1

Scan Configuration ................................................................................ 2-2

Scan List ........................................................................................ 2-2

Trigger Mode .................................................................................. 2-8

Channel Configuration .................................................................... 2-12

Channel Configuration When Using External DMM ............................. 2-21

Measurement Parameter Configuration ............................................ 2-22

Digital Input .................................................................................. 2-35

Totalizer ........................................................................................ 2-37

M300 User’s Guide

RIGOL Contents

Configuration Copy ........................................................................ 2-39

Channel Monitor ................................................................................... 2-44

Single-channel Monitor ................................................................... 2-44

Multi-channel Monitor .................................................................... 2-46

All Channel Monitor ........................................................................ 2-46

Module Control .................................................................................... 2-47

To Control MC3120 ........................................................................ 2-48

To Control MC3132 ........................................................................ 2-51

To Control MC3164 ........................................................................ 2-54

To Control MC3324 ........................................................................ 2-56

To Control MC3416 ........................................................................ 2-59

To Control MC3534 ........................................................................ 2-61

To Control MC3648 ........................................................................ 2-64

Alarm Channel Setting .......................................................................... 2-66

View Switch ......................................................................................... 2-68

Scan History Information ................................................................ 2-68

Channel Status Table ..................................................................... 2-70

Measurement Curve ....................................................................... 2-70

Channel Information ...................................................................... 2-72

Store and Recall ................................................................................... 2-73

File Type ....................................................................................... 2-74

Internal Storage ............................................................................ 2-75

External Storage ............................................................................ 2-75

To Save a File ................................................................................ 2-76

Utility .................................................................................................. 2-77

System Setting .............................................................................. 2-78

I/O Configuration .......................................................................... 2-86

System Information ....................................................................... 2-92

Detect .......................................................................................... 2-92

System Update .............................................................................. 2-93

Chapter 3 To Use External DMM ......................................................... 3-1

To Connect Instruments .......................................................................... 3-2

To Configure the Instruments .................................................................. 3-4

Scan Control Method .............................................................................. 3-5

Chapter 4 Remote Control ................................................................. 4-1

User-defined Programming ..................................................................... 4-2

To Use PC Software ................................................................................ 4-6

To Control M300 through GPIB .......................................................... 4-6

To Control M300 through USB ........................................................... 4-8

To Control M300 through RS232 ........................................................ 4-9

To Control M300 through LAN ......................................................... 4-11

Chapter 5 Troubleshooting ................................................................ 5-1

Chapter 6 Specifications .................................................................... 6-1

DC Charac t eristic s .................................................................................. 6-1

XIV M300 User’s Guide

Contents RIGOL

AC Characteristics .................................................................................. 6-3

Frequency and Period Characteristics ...................................................... 6-6

Temperature Characteristics ................................................................... 6-8

Module Specifications ........................................................................... 6-10

MC3120/MC3132/MC3164/MC3324/MC3416/MC3648 ........................ 6-10

MC3534 ........................................................................................ 6-12

General Specifications ........................................................................... 6-13

Chapter 7 Appendix ............................................................................ 7-1

Appendix A: Accessories and Options List ................................................ 7-1

Appendix B: Definitions of the Pins of the 78-pin Interface of the Plug-in

Modules ............................................................................................... 7-2

MC3120 ......................................................................................... 7-2

MC3132 ......................................................................................... 7-3

MC3164 ......................................................................................... 7-4

MC3324 ......................................................................................... 7-5

MC3416 ......................................................................................... 7-6

MC3534 ......................................................................................... 7-7

MC3648 ......................................................................................... 7-8

Appendix B: Warranty ............................................................................ 7-9

Index ....................................................................................................... 1

M300 User’s Guide

Chapter 1 Quick Guide RIGOL

1-1

Chapter 1 Quick Guide

This chapter guides users to quickly get familiar with the front/rear panels, user interface as well as the m e asurement connections of the M300.

Topics in this chapter:

 General Inspection  Appearance and Dim e nsions  Front Panel  Rear Panel  Power On Inspection  User Interface  To Input Filename  Plug-in Module Overview  To Use the Built-in Help System  Measurement Connections  To Replace the Fuse  Menu Quick Navigation

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

General Inspection

1. Inspect the shipping container for damage.

Keep the damaged shipping container or cushioning material until the contents of the shipment have been checked for completeness and the instrument has passed both electrical and mechanical tests.

The consigner or carrier shall be liable for the damage to instrument resulting from shipment. RIGOL would not be responsible for free mai ntenance/rework or replacement of the unit.

2. Inspect the instrument.

In case of any damage, or defect, or failure, notify your RIGOL sales representative.

3. Check the Accessories

Please check the accessories according to the packing lists. If the accessories are incomplete or damaged, please contact your RIGOL sales representative.

1-2 M300 User’s Guide

Chapter 1 Quick Guide RIGOL

1-3

Appearance and Dimensions

Figure 1-1 Front View (Unit: mm)

Figure 1-2 Side View (Unit: mm)

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

Configure the scan list and the measurement parameters of each Enable or disable the channel monitor function.

channels in the scan list.

1 2

6 7 8 9 10

Front Panel

4 5

Figure 1-3 Front Panel of M300

1 LCD

4.3 inches high-resolution color LCD displaying the menu, configuration guide, measurement parameters, system status and prompt messages.

2 Function Keys

channel.

 Create, edit, read and save the scan list.  Set the number of scans, trigger mode and scan interval.  Provide the channel configuration guide used to configure

the measurement parameters, scaling parameters, alarm parameters and advanced measurement parameters of the channel.

 Support single-channel, multi-channel and all-channel

monitor functions.

1-4 M300 User’s Guide

 In single-channel monitor function, you can switch the

channel monitored at any time.

 In multi-channel monitor function, you can monitor up to 7

Chapter 1 Quick Guide RIGOL

1-5

In all-channel monitor function, you can monitor all the

Control the modules currently inserted.

Auto Trigger/Stop Single-channel Switch

single-channel monitor interface.

Numeric Keyboard Use this key to open the previous or next page of the

and down ke ys (Page U p and Page Dn).

If a USB storage device is currently c onnected to t he ins trument, storage device in *.bmp format.



channels in the scan list.

 Control the status of each channel of the modules.  Reset the modules.  Configure the DIO and TOT channels of multifunction

module.

 Can not control the DMM module.

Press this key, the instrument triggers or enters the wait-for-trigger state and the backlight goes on. Press and hold this key, the instrument stops triggering or exits the wait-for-trigger state and the backlight goes off. Note: This key is invalid when the scan list is empty.

When the instrument is in the single-channel monitor interface, press this key to switch the channel monitored to the next channel in the scan list. When the instrument is in other interfaces, press this key to switch the instrument to the

3 Control Keys

 Include numbers (0-9), decimal point (.) as well as

positive/negative signs (+/-).

 Used to input parameter value, date and time.

current interface. Note: These keys are different from the menu page up

Direction keys and conf irmation key.

4 System Keys

press this key to store the current content on the screen in USB

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

When the instrument is in local mode, pressing this key can

Store and reca ll the system configuration, measurement

Configure the system-related parameters.

Enable the built-in help system. Provide Chinese/English help information for the front panel function keys and menu items.

Press this key to turn on or off the instrument.

Via this interface, M300 can be as a host device and connected measurement configuration, measurement data, etc.



lock the front panel. At this point, all the keys at the front panel except this key become invalid. Press a nd hold this key to unlock the front panel.

 When the instrument is in remote mode, press this key to

switch to local mode.

conf iguration and measurement data, etc.  Store the file in the internal non-volatile memory or external

USB storage device.

 Read the file stored.

 Set various parameters such as the time, date, system

language and display brightness.

 Configure the remote inte rface parame t e rs: RS232, LAN,

GPIB and USB.

 Query the system information (su ch as t he model and serial

number).

 Execute self-test and view the information of each module

(such as the name and model of the module).

 System update.

5 Alarm Channel Setting

M300 provides 4 alarm channels. When an alarm is generated, the corresponding pin of the Alarms/Ext Trig interface (converted from the [RS-232/Alarms/ Ext Trig] interface) at the rear panel outputs a pulse. You can press the corresponding key to set the output mode of the corresponding pin.

6 Power Key

7 USB Host

with an USB storage device to store or recall instrument status,

1-6 M300 User’s Guide

Chapter 1 Quick Guide RIGOL

1-7

View the scan history information, channel status table, measurement

mum, average and st anda rd de viation meas ure d and the sc an

error messages (up to 20).

8 Menu Softkeys

Correspond to the menus on the screen. Pressing any softkey can enable the corresponding menu.

9 View Switch

curve and channel information.  Scan history information: view the start time, scan sweep, count,

channel number as well as the corresp ondi ng function, maximum, mini readings of each channel of the latest scan.

 Channel status table: display the current status of each channel.  Measurement curve: display the measurement curve of the

specified channel.

 Channel information: view the cycle count of each relay of the

module, the alarm messages of the current scan (the first 100, including the reading and time when the alarm is generated) and

Note: Up to 100 alarm messag es on each alarm channel can be logged in the alarm queue and the other alarm messages would be lost and up to 20 error messages can be logged in the error queue and the other error messages will also be lost.

10 Module Indicators

Correspond to t h e 5 module slots at the rear panel respectively. The corresponding module indicator goes on when the module is inserted into the slot at the rear panel.

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

CAUTION

Rear Panel

1 Slots

The M300 provides 5 slots for 5 modules. The 5 slots from left to right in the figure above correspond to the 5 module indicators at the front panel respectively. When a module is inserted in the slot, the corresponding module indicator at the front panel goes on. Figure 1-4 is the schematic diagram of the rear panel without the modules inserted. For information of each module, refer to “Plug-in Module Over vie w ”.

1 2 3 4 5

Figure 1-4 Rear Panel of M300

2 USB Device

3 LAN

4 Analog Bus Interface (Female)

1-8 M300 User’s Guide

Only one DMM module is permitted for one mainf r ame.

Via this interface, M300 can communi cate with the PC as a sla ve devi ce and yo u can control it remotely via the PC.

M300 conforms to the LXI Core 2011 Device standard. The instrument can be connected to the network via this interface and you can control the instrument remotely via a PC in the same network.

M300 provides two internal 2-wire analog buses for signal routing as well as an

Chapter 1 Quick Guide RIGOL

1-9

CAUTION

2 3 1

Definition

Current Input

LoSense

Hi 7 HiSense

Float GND

external interface (namely Analog Bus Interface). The analog bus interface is a 9-pin female interface.

Analog Bus Interface

5 DMM Module Power Fuse

The AC power supply from the power socket is divided into two paths with one for the DMM module and the other for other circuits except the DMM module. M300 is equipped with the DMM module power fuse (AC 250V T250 mA). To replace the fuse, refer to the method below.

1) Turn off the instrument and remove the power cord.

2) Press down the fuse cover using a straight screw driver and rotate clockwise.

3) Select a proper voltage through the voltage selector.

4) Disassemble the fuse cap and fuse.

5) Replace a specified fuse and install the fuse cap.

Please use the specified fuse to avoid electric shock and fire.

6 Voltage Selector

M300 supports two kinds of AC voltages (115 V and 230 V). Please select the proper voltage scale according t o the AC power used.

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

Function

Alarm1

Output

PC_RX

Output

Alarm2

Output

PC_DSR

Output

Alarm3

Output

GND

Alarm4

Output

PC_DTR

Input

CH Close

Output

PC_CTS

Output

Trig

Input

PC_RTS

Input

GND

-- 8 PC_TX

Input

Definition

Alarm 1 Output

Alarm 2 Output

Alarm 3 Output

Alarm 4 Output

Channel Closed Output

Ext Trig Input/Channel Adv a nce Inp ut

GND

6 7 4 5 2 3 1 6 7 4 5 2 3 1 8

Name

Definition

RXD

Received Data

TXD

T ransmitted Data

DTR

Data T erminal Ready

SGND

Signal Ground

DSR

Data Set Ready

RTS

Request To Send

CTS

Clear To Send

7 RS-232/Alarms/Ext Trig Mixed Interface (Male)

This interface is a 15-pin male interf ace. The definitions of the pins are as sh own in the table below.

You can convert this interface into two 9-pin interfac es using the Mixed Interface Convert Cabl e (accessory). This break out cable consis ts of a 9-pin male interfa ce used as a standard RS232 interface and a 9-pin female interface used for alarm output, external trigger signal input and etc.

 RS232: via this interface, M300 can communicate with the PC and you can

control the instrument remotely via the PC.

RS232 Interface

 Alarms/Ext Trig: as shown i n t he figure bel ow, pin 1 to pin 4 are use d to

output TTL pulse when an alarm is generated in the corresponding alarm channel. Pin 6 is used to receive external trigger signal. When an external digital multimeter is connected for measurement, pin 5 and pin 6 are used together to control the measurement.

Alarms/Ext Trig Interface

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1-11

CAUTION

scale using the voltage selector.

CAUTION

seat is not short-circuited to avoid electric shock and fire.

Note:

The Pin 5 outputs a TTL negative pulse with about 7μs pulse width each time the measurement is completed. The output rate is dependent upon the actual measurement rate. The maximum output rate is 1000 times per s econd.

In external trigger mode, Pin 6 accepts external trigger signal. The trigger can have a pulse width equal to or greater than 2μs with specified edge. To configure, press Config, select “External” trigger mode and select “Rising” or “Falling” in Edge item. If the external trigger signal is continuous pulse, please make sure the pulse period is larger than 100μs.

8 GPIB

The M3 00 confo rms to th e IEEE-488.2 standard. Via this interfa ce, the M300 can be controlled remotely via a PC with a GPIB interface.

9 Power Socket

The M300 can accept two kinds of AC power supplies. Use the power cord provided in the accessories to connect the AC power supply to the instrument via this socket.

Before connecting the AC power supply, select the correct voltage

10 Power Fuse

The specification of the fuse of M300 is AC 250V T3.15 A. If a new fuse is required, please refer to “To Replace the Fuse”.

Please use the specif ied power fuse and make sure that the fuse

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

AC Power Socket

Power On Inspection

1 Connect the power

(1) Adjust the power voltage selector at the rear panel according to the power

supply volta ge. M300 supports two types of AC power. If your supply voltage is in the range of 115*(100%-10%) V and115*(1 00%+10%) V, please select 115 and if it is in the range of 230*(100%-10%) V and 230*(100%+10%) V, please select 230.

(2) Connect the instrument to AC power using the power cord provided i n the

accessories.

2 Start the instrument

Press the power key at the front panel and the instrument starts. After the instrument starts, it checks the modules. This process would take

several to dozens of seconds according to t he number of modules inserted. During this process, user operation is forbidden.

3 Check the instrument following the steps below if the instrument

does not start normally

1) Check whether the power is correctly connected.

2) Check whether the power key at the front panel is really on.

3) Check whether the power fuse is burned out. If the fuse needs to be changed, use the specified fuse.

4) Check whether the correct power voltage is selected. Please select the proper power voltage according to the power supply voltage.

5) Restart the instrument after finishing the above inspections. If it still does not work correctly, please contact RIGOL.

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Help

Displayed when the built-in help is enabled.

Error

Displayed when an error occurs.

Displayed when the keyboard is locked.

Displayed when an alarm is generated.

Displayed when the system sound is disabled.

Displayed when the instrument is connected to a network correctly.

Displayed when an U SB storage device is detected.

Local

Displayed when the instrument is in local mode.

Rmt

Displayed when the instrument is in remote mode.

Status

User Interface

Bar

Content Area

Figure 1-5 User Interface

1． Sta tus Bar

Bar

2． Cont ent Area

Display the measurement configuration guide, measurement parameters settings, etc. For more detailed information, please refer to the User’s Guide.

3． Me nu Bar

Display the menus of the current function corresponding to the menu softkeys below respectively. Pressing the softkey can activate the corresponding menu.

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

To Input Filename

M300 supports filenames consisting of Chinese characters, English letters and numbers. The length of the filename cannot exceed 12 bytes. The filename input interface is as shown in the figure below.

Input Mode Icon/Chinese Character Selecting Area Letter Selecting Area

Filename Input Area

Figure 1-6 Filename Input Interface

1 Input Mode Icon/Chinese Character Selecting Area

Display the icon of the input mode currently selected.

 Chinese input mode: display  English uppercase input mode: display  English lowercase input mode: display

In additional, in Chinese input mode, this area displays Chinese characters for selection. Use the numeric keyboard to input the number corresponding to the Chinese character to input the desired Chinese character.

2 Filename Input Area

Display the letter entered. You can use the left/right direction key to select the desired letter to edit.

3 Letter Selecting Area

Use th e direction keys to select desired letter and press OK.

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4 Switch the Input Mode

Press Ch/A/a to switch the input mode to Chinese, English uppercase or English lowercase.

 Chinese: can input Chinese characters and number (from 0 to 9) and

is displayed in the “Input Mode Icon Area”.

 English uppercase: can input English uppercase letters (from A to Z) and

number (from 0 t o 9 ) an d

is displayed in the “Input Mode Icon Area”.

 English lowercase: can input English lowercase letters (from a to z) and

number (from 0 t o 9 ) and

is displayed in the “Input Mode Icon Area”.

5 Switch the Cursor

Press Cursor to switch the cursor to select “Filename Input Area”, “Letter Selecting Area” or “Chinese Character Selecting Area” (only available in Chinese input mode).

 When “Filename Input Area” is selected, you can use left /right di rection ke y

to select desired letter to edit.

 When “Letter Selecting Area” is selected, use the direction keys to select

desired letter and press OK. At this point, letters in “Filename Input Area” or “Chinese Character Selecting Area” varies.

 In Chinese input mode, when “Chinese Character Se lecting Area” is selected,

you can use the up/down direction key to open the previous or next page of “Chinese Character Selecting Area” and use the numeric keyboard to input the number corresponding to the Chinese character to input the desired Chinese character.

6 Delete

Press this softkey to delete the letter selected by the cursor in “Filename Input Area”.

7 OK

Press this softkey to use the letters displayed in “Filename I nput Are a” as the filename.

8 Return

Press this softkey to cancel inputting filename and return to the pre vious men u .

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

Golden Circuit board Edge: each on the

Interface 1: connect the signal under test via the Interface 2: connect

Plug-in Module Overview

The M300 provides 8 kinds of modules. These include a DMM module, 20-channel multiplexer, 32-channel multiplexer, 64-channel multiplexer, multi-function module, etc. This section introduces the functions and characteristics of each module.

Outside View Drawing of the Module

top and bottom for sliding into the slot

terminal block (the DMM module does not have this interface)

with the main frame

Figure 1-7 Outside view drawing of the module

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Note:

mainframe off before inserting the modules into the mainframe.

Insert the Module into the Mainframe

Please turn the mainframe off and insert the modules following the instructions below.

As shown in Figure 1-7, there is a golden circuit board edge both on the top and bottom of the module. Aim the two edges with the sliding chutes (as pointed out by the arrows in the figure below) into the main f ra me sl ot and push the module in unti l you hear a sound. At this point, interface 2 is connected to the main frame.

Note: Please refer to “Measurement Connections” to connect the external terminal block and the sig nals to be measured and then insert it into the mainframe.

Figure 1-8 Insert the Module into the Mainframe

All the modules of the M300 do not support hot-plugging. Please turn the

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

Module Overview

MC3065 (DMM Module)：

The DMM module is used to measure the signals under test and has 6½ digit reading resolution. The measurement functions include DCV, ACV, 2-wire resistance, 4-wire resistance, frequency, period, temperature and any sensor.

After connecting the DMM module, make s ure that the signal under test connected to the analog bus is no greater than 300 Vdc or 300 Vrms.

MC3120 (20-Channel Multiplexer):

All 20 channels switch both HI and LO inputs, thus providing fully isolated inputs to the DMM module. MC3120 is divided into two banks (called A and B) of 10 two-wire channels each. When making 4-wire resistance measureme nt , the instrument automatically pairs channels of A bank and B bank. All channels in the scan list are break-before-make. You can close multiple channels on this module only if you have not configured any channel to be part of the scan list. This module can be connected with MC3065 (DMM Module, if MC3065 is currently inserted).

MC3132 (32-Channel Multiplexer)：

All 32 channels switch both HI and LO inputs, thus providing fully isolated inputs to the DMM module. MC3132 is divided into two banks (called A and B) of 16 two-wire channels each. When making 4-wire resistance measureme nt , the instrument automatically pairs channels of A bank and B bank. All channels in the scan list are break-before-make. You can close multiple channe ls on this module only if you have not configured any channel to be part of the scan list. This module can be connected with MC3065 (DMM Module, if MC3065 is currently inserted).

MC3164 (64-Channel Single-Ended Multiplexer)：

All 64 channels can switch the HI input only. MC3164 is divided into two banks (A and B) of 32 single-ended channels each. All channels in the scan list are break-before-make. In any case, y ou cann ot close multiple channels on thi s module. This module can be connected with MC3065 (DMM Module, if MC3065 is currently inserted) but cannot be used for 4-wire resistance measurement.

MC3324 (24-Channel Multiplexer)：

The MC3324 is a mixed multiplexer with 20 v oltage channels a nd 4 current channe ls. All 20 voltage channels switch both HI and LO inputs, thus providing fully isolated inputs to the DMM module, and is divided into two banks (called A and B) of 10 two-wire channels each. When making 4-wire resistance measurement, the instrument automatically pairs channels of A bank and B bank. All channels in the scan list are break-before-make. You can close multiple channels on this module only if you have not configured any channel to be part of the scan list.

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4 current channels are used in combination with the DMM module to measure DC current or AC current. All channels in the scan list are break-before-make. In any case, you cannot close multiple channels on this module. This module can be connected with MC3065 (DMM Module, if MC3065 is currently inserted).

MC3416 (16-Channel Actuator)：

The MC3416 can connect signals to the device under test or enable external devices. Any of the 16 channels can switch to Normally-Ope n (NO ) a nd N ormal ly -Closed (NC) states.

MC3534 (Multifunction Module)：

This module provides 3 kinds of functions with 4 channels for each function. This module can be used to check status or control external devices (such as solenoid, power relays and microwave switches). You can also read digital inputs and the totalizer count during a scan.

 Four 8–bit digital input/output (DIO) ports  4 totalizer (TOT ) input terminals (the first two channels are 10 MHz TO T and the

other two channels are 100 kHz TOT) with 1 Vpp sensitivity

 4 analog output terminals, ±12 V calibrated voltage

MC3648 (4×8 Matrix Switch)：

The MC3648 is used to connect multiple devices to multiple points on the device under test. You can connect the rows and columns of multiple matrix switches to form relatively larger matrix (such as 8×8 and 4×16, the number of crosspoints cannot exceed 160). 32 two-wire cross points which can connect any com bination of inputs an d outputs at the same time.

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

To Use the Built-in Help System

The built-in help syst em of M300 p rovide s the h elp i nform ation about any fro nt panel key and menu. To acquire the help information of an y front panel k ey or menu , press Help (the backlight goes on and “Help” is displayed in the status bar in the user interface) and then press the desired key. The built-in help interface is as shown in the fi g ure below. Press OK to exit.

Figure 1-9 Built-in Help System

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1-21

Terminal Block

Module

M3TB20

MC3120

M3TB32

MC3132

M3TB64

MC3164

M3TB24

MC3324

M3TB48

MC3648

M3TB16

MC3416

M3TB34

MC3534

WARNING

removing the terminal block from the module.

Measurement Connections

Multiple signals to be measured are connected to the plug-in modules through the external terminal blocks and then switched to the DMM module or external DMM. M300 provides 7 kinds of terminal b locks. The models of the terminal blocks and corresponding modules are listed in the table below. This section introduces how to connec t the signals to be measured t hrough the external block.

Table 1-1 External T e r minal Blocks

Cut off all the power supplies before opening the terminal block or

1. Place the terminal block with the front (with the RIGOL caption) facing downward and pull the two latches in the arrow direction in the figure below an d press them down. Place the termi nal block wit h the front f acing upwar d and pull the upper cover of the terminal block upward and remove it.

2. Connect the cables for connecting the signal under test according to the labels on the circuit board of the terminal block (for the connecting method, refer to

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

H L

...

H L

...

Channel Switches

Terminal

Box: TB32

78-Pin

Interface

M300

Mainframe

DMM Module

MC3065

measured

Fuse

Table 1-2). Pass the binding wires through the two groups of holes as pointed out by the a rrows in the figure below to fix the cable connected. Pay attention to the channel or terminal connected to the cable to ensure that the signal connected is correct.

Note:

 For the connectio n method of each module and the corresponding terminal

block as well as the specification requirements of the connecting cable, please log in RIGOL official websi t e (www.rigol.co m) to get more related materials.

 When using the mutliplexer module for measurement, make sure that both

the amplitude of the signal under measurement and the commom mode voltage are no greater than the maximum input voltage of the module.

 When the multiplexer module is use d to measure an object wi th high-power

output ability (such as battery and power supply), to avoid damaging the relay, you are recommended to connect a fuse in serial when making connections (as shown in the fi gure below ) .

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DCV/ACV/FREQ/PERIOD/Sensor

DCI/ACI/ Sensor (DCI)

channel 24 of MC3324.

2WR/RTD/Thermistor/

4WR/RTD 4W/ Sensor (4WR)

Thermocouple

WARNING

requirement. To avoid damaging the module, make sure that all

the input signals are within the rated input range.

Resistance to be +

+ - -

Table 1-2 Measurement Connections

(DCV, FREQ)

+ -

Signal to be

measured

CH1

H L

Sensor (2WR)

+ -

Resistance to be

measured

CH1

H L

+ -

Signal to be

measured

CH21

H L

Note: Only available for the channel 21 to

H L Source

CH1

measured

+ -

Thermocouple

under test

CH1

To avoid electric shock, the connecting wire should meet the maximum

H L

current

M300 User’s Guide

H L Sense

CH17

Note: Only available for all the channels of MC3120 and MC3132 as well as the channel 1 to channel 20 of MC3324.

RIGOL Chapter 1 Quick Guide

3. Connect the terminal block to t he module via interfac e 1 (the inte rface definition is in Figure 1-7) on the module and screw down the two screw rods onto the nuts on the module.

4. Close the upper cover of the terminal block.

5. Insert the module with the terminal block into the slot of the mainframe.

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CAUTION

seat is not short-circuited to avoid electric shock and fire.

To Replace the Fuse

If a new fuse is required, please refer to the following steps. 1 Turn off the instrument and remove the power cord. 2 Insert the small straight screw driver into the slot at the power socket and pry

out the fuse seat.

3 Replace a specified fuse.

4 Insert the fuse seat into the slot.

Please use the specified power fuse and make sure that the fuse

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

Menu Quick Navigation

This section provides the structures of the main menus for M300 to guide users to quickly get familiar with the operations. For more detailed information, please refer to “Front Pane l Operations”.

Config

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Monitor

View Switch Key

M300 User’s Guide

RIGOL Chapter 1 Quick Guide

Control

Alarm Channel Setting Keys

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Chapter 2 Front Panel Operations RIGOL

2-1

Chapter 2 Front Panel Operations

This chapter introduces in details t he fr ont pane l ope ration methods and f unctions o f M300.

Top ics in this chapter:

 Scan Configuration  Channel Monitor  Module Control  Alarm Channel Setting  View Switch  Store and Recall  Utility

M300 User’s Guide

RIGOL Chapter 2 Front Panel Operations

Scan Configuration

Press Config at the front panel to configure M300 to create a scan (create and edit the scan list and configure the parameters of each channel). During the scan, each time the DMM module is connected to one channel in the scan list and executes a measurement according to the channel configuration.

Scan List

Create a scan list, add any channels of the multiplexer or the DIO or T OT channels of the multifunction module to the scan list and configure the basic measurement, scaling, alarm and adv anced measurement parameters for ea ch c hanne l. The edited scan list can be stored in i nternal or exte rnal memory and be recalled whe n require d.

To Create a New List

The instrument enters the scan list configuration interface when you start the M300 or press Config. You can set the scan parameters (such as sweep count, trigger mode) as well as create, edit, recall and save the scan list.

Figure 2-1 Scan List Configuration Interface

1 To Create Scan List

Press New to create a new scan list and enter the filename input interface. At this point, you can input the desired list name by referring to “ Filename” and press OK. The scan list na me can consist of Chinese char acters, English uppercase/lowercase letters and numbers and cannot exceed 12 bytes

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To Input

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2-3

Interval

A Scan

(each English letter or number occupies 1 byte and each Chinese character occupies 2 byt e s).

To modify the name of the scan list created, please select Scan Li st firstly and press OK to enter the filename input interface.

2 Sweep Count

Select Sweep using the up/down direction key and select “Infinite” or “1” (you need to set a value) using the left/right direction key.

 Infinite: execute continuous scan. You can press and hold Run/Stop to

stop the scan.

 Number of Scans: you can use the numeric keyboard to set a value. The

range is from 1 to 50000 . After executing the specified number of scans, the instrument stops scanning automatically.

3 Trigger Mode

Select TrigMode using the up/down direction key and select “Auto”, “Manual”, “External”, “AbsTime” or “Alarm” using the left/right direction key.

 Auto: the instrument executes infinite scan or the specified number of

scans at the specified interval automatically.

 Manual: the instrument executes a scan when you press Run/Stop.  External: the instrument executes a scan when the external trigger signal

input interface receives a TTL trigger pulse.

 AbsTime: the instrument executes a scan when the system t ime reaches the

specif ied time.

 Alarm: the instrument executes a s can when an alarm is generated from the

specified alarm channel.

For details of the trigger mode, refer to “Trigger Mode”.

4 Interval

Interval is defined as the time interval between the start of a scan to the start of the next scan in auto scan mode as show n in the figure below . When the t rigger mode is “Auto”, selec t Interval using the up/down direction key and use the numeric keyboard to set a desired interval. The range is from 00:00:00.000 to 99:59:59.999 (the time format is Hour:Minute:Second.Millisecond) and the default is 00:00:00.000.

……

M300 User’s Guide

RIGOL Chapter 2 Front Panel Operations

Pin 6: Ext Trig Input/Channel Advance Inp ut

5 Advanced Source (Available only when the DMM module is not

installed or disabled)

This setting is only available when an external digital multimeter is used. The advanced source provides the advanced channel signal. When receiving the advanced channel signal, the instrument disc onnects the channel currently selected and closes the next channel in the scan list.

When an external DMM is connected, use the up/down direction key to select Adv Src and use the left/right direction key to select the desired advanced source.

 Auto:

After finishing measuring the current channel, the cur rent channel is disconnected and the next channel in the list is closed automatically.

 Single:

After finished measuring the current channel, the unit will wait for user input before moving to the next channel in the list. Pressing Single to disconnect the current channel and close the next channel.

Because both the “Single” advanced source and the manual trigger use the same way, pressing Single, to generate signal, the manual trigger mode does not support “Single” advanced source.

 External:

The scan will advance after receiving a trigger on the external advanced channel signal. This signal , typica lly the VMC signal from the external DMM, is input from pin 6 of the Alarm/Ext Trig interface (converted from the [RS-232/Alarms/Ext Trig] interface). After “External” is selected, you need to select the ed ge type of the input signal (use the up/ down direction key to select Input Edge and use the left/right direction key to select “Rising” or “Falling”).

As the “External” advanced source input and the external trigger input use the same pin, the external trigger mode does not support “External” advanced source.

Alarms/Ext Trig Interface

6 Absolute Time

Absolute time is defined as the time when the instrument executes the scan in

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absolute time scan mo de. When the tri gger mo de is “AbsTime”, select AbsTime using the up/down direction key and set the desired time using the numeric keyboard. The time format i s “ Month-Date Hour:Minute:Second”. You need to set a valid time. The ranges of the parameters are as follows. Month: 01 to 12 Date: 01 to 31, 30, 29 or 28 Hour: 00 to 23 Minute: 00 to 59 Second: 00 to 59

The instrument can also ignore some time parameters and trigger when the system time fulfills some of the parameters. Use “.” on the numeric keyboard to set the parameters to be ignore d and the cor responding position will display “ **”. For example, set the inst rument t o ignore the “ Month” and “Date” and trigger at 8:00 every day; use the numeric keyboard to set the absolute time to “**-** 08:00:00”.

7 Alarm Channel

When the trigger mode is set to “Alarm”, select Channel using the up/down direction key and set the alarm channel to “Alarm1”, “Alarm2”, “Alarm3” or “Alarm4” usin g the left/right directi on key. The instrument executes a scan when an alarm is generated from the channel selected.

8 Trigger Edge Type

When the trigger mode is “External”, select Edge using the up/down direction key and select “Rising” or “Falling” using the left/right direction key. The instrument executes a scan when a TTL trigger pulse with specified edge is received by the external trigger signal input terminal.

M300 User’s Guide

RIGOL Chapter 2 Front Panel Operations

To Edit the List

Press ConfigEdit to enter the scan list editing interface.

Figure 2-2 Scan List Editing Interface

1 New

Create a new channel configuration. Press this softkey to enter the channel conf iguration guide. Finish all the configurations according to the introductions in “Channel Configuration” and press Done to return to the scan list editing interface.

2 Copy

Copy the channel c onfiguration created to other channel or module. For details, refer to the introduction in “Configuration Copy”.

3 Modify

Modify the channel configuration created. Select the desired channel using the direction keys and press Modify to open the configuration guide of the corresponding channel. At this point, you can modify the configuration of this channel and after the mod ification is finished, press Done to return to the scan list editing interface.

Note: The channel in Chan No. can only be modified to the channels in the scan list.

4 Delete

Delete a channel configuration created. Select the channel to be deleted using the direction keys and press Delete to delete the corresponding channel.

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5 Search

When a great number of channels are added into the scan list, you can press Page Dn  Search, use the numeric keyboard to input the desired channel number and then press OK to quickly locate this channel. You can copy, modify or delete the channel configuration located.

To Save the List

The M300 allows users to save the configured scan list in internal or external memory as measurement conf iguration file.

Press Config  Save to enter the store and recall interface (the file type is automatically set to “Measurement configuration”). Select the desired directory according to the method introduced in “Store and Recall” and then press Save to enter the filename input interface. Input the specified filename to save the current scan list.

You can read the scan li st stored as well as modify its configuration and sav e it again.

To Read the List

The M300 allows users to read the scan list stored. Press Config  Read to enter the store and recall interface (the file type is set to “Measurement Configuration” automatically). Select and read the desired file according to the method introduced

Store and Recall”.

in “ You can modify the configuration of the scan list read and save it again.

M300 User’s Guide

RIGOL Chapter 2 Front Panel Operations

Trigger Mode

The M300 provides 5 trigger modes including auto trigger, manual trigger, external trigger, absolute time trigger and alarm trigger.

Auto Trigger

In auto trigger mode, the scan rate is determined by the specified interval. If the time required for a complet e scan of the scan list is greater than the specified interval, the instrument will execute a continuous scan at the fastest possible rate (no error message will be generated).

The range of the interval is from 0 ms to 99:59:59.999 hours (the time format is “Hour:Minute:Second.Millisecond”) and the resolutio n is 1 ms.

If the number of s cans is set to “Infinite” , press Run/Stop at the front panel and the instrument executes a continuous scan automatically at the specified interval. You can press and hold the key to stop the scan.

If the number of scans is a specific value (1 to 5000 0), p ress Run/Stop at the front panel and the instrument executes the specified number of scans at the specified interval and then stops automatically.

During the scan, the instrument stores the measurement data, scaling data and alarm data in the non-volatile memo ry automatically. You can press panel to view the history measurement data (including the maximum, minimum, average and standard deviation).

Manual Trigger

In manual trigger mode, after you press Run/Stop at the front panel, the instrument executes a sca n and then enters the w ait -for-trigger state. After that, the instrument triggers each time you press Run/Stop at the front panel.

If the n u mber of scans is set to “Infinite”, after each trigger is finished, th e instrument will always stay in wait-for-trigger state. You can press and hold the key to stop the scan and the instrument will exit the wait-for-trigger state.

If the number of scans is set to a specific value (1 to 50000), after the trigger is finished, the instrument enters the wait -for-trigger state. The instrument will exit the wait-for-trigger state when the number of triggers reaches the preset value.

During the scan, the instrument stores the measurement data, scaling data and

at the front

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Pin 6: Ext Trig Input/Channel

alarm data in the non-volatile memo ry automatically. You can press at the front panel to view the history measurement data (including the maximum, minimum, average and standard deviation).

External Trigger

To use the externa l t rigger mode, first use the mixed-inter face separator line (accessor y) to convert the [RS-232/Alarms/Ext Trig] interface at the rear panel to two 9-pin interfaces. Wherein, the 9-pin male interface is a standard RS232 interface and the 9-pin female interface is used for alarm output, external trigger signal input (pin 6, as shown in the figur e below) and so on. Secondly, you need to select the edge type (rising or falling) for the external trigger signal. In external trigger mode, the instrument initialize a trigger when a trigger signal met the conditions is received by the Ext Trig Input terminal.

Advance Input

Alarms/Ext Trig

In external trigger mode, if the number of scans is set to “Infinite”, after you press Run/Stop at th e front panel, the instrument enters the wait-for-trigger state and then executes a scan each time an e xternal trig ger si gnal i s re ceived . Press and hold Run/Stop and the instrument will exit the wait-for-trigger state.

If the number of scans is a specific value, after you press Run/Stop at the front panel, the instrument enters the wait-for-trigger state and then the instrument executes a scan each time an external trigger signal is received. After executing the specified number of e xternal tri ggers, t he ins trumen t exits t he w ait-for-trigger state.

During the scan, the instrument stores the measurement data, scaling data and alarm data in the non-volatile memory automatically.

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Absolute Time Trigger

To use the absolute time trigger mode, set an accurate system time for the instrument by referring to “Date” and “Time”. Then select absolute time trigger mode and set a time. The instrument e xecutes a scan w hen the system time re aches the specified time. If the system time reaches the next specified time point when th e instrument is in a scan , the instrument will ign ore the new trigger and c ontinue with the current scan.

The absolute time format is “Month-Date Hour:Minute:Second”. You need to set a valid time. The ranges of the parameters are as follows. Month: 01 to 12 Date: 01 to 31, 30, 29 or 28 Hour: 00 to 23 Minute: 00 to 59 Second: 00 to 59

The instrument can also ignore some time parameters and trigger when the system time fulfills some of the parameters. Use “.” on the numeric keyboard to set the parameters to be ignored and the corresponding position will display “**”. For example, to set the instrument to ignore the “Month” and “Date” and trigger at 8:00 every day, use the numeric keyboard to set the absolute time to “**-** 08:00:00”. When parameters in “Month-Date Hour:Minute:Second” are all ignored, it is similar to auto trigger mode.

In absolute time trigger mode, if the number of scans is set to “Infinite”, a fter you press Run/Stop at the front panel, the instrument enters the wait-for-trigger state and then executes a scan each time the system time reaches the specified time. Press and hold Run/Stop and the instrument will exit the wait-for-trigger state.

If the number of scans is a specific value, after you press Run/Stop at the front panel, the instrument enters the w ait-for-trigger state and then executes a scan each time the system time reaches the specif ied time. After executing the specified number of absolute time triggers, the instrument exits the wait-for-trigger state.

During the scan, the instrument stores the measurement data, scaling data and alarm data in the non-volatile memory automatically.

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Explanation:

Alarm Trigger

To use the alarm trigger mode, configure the alarm by referring to “Alarm Configuration” and select alarm trigger mode , then select an alarm channel. The

instrument executes a scan when an alarm is generated in the specified alarm channel.

In alarm trigger mode, if the number of scans is set to “Infinite”, after you press Run/Stop at the front panel, the inst ru ment enters the wait-for-trigger state. Then the instrument executes a scan when an alarm is generated in the specified alarm channel. Press and hold Run/Stop and the instrument will exit the wait-for-trigger state.

If the number of scans is a specific value, after you press Run/Stop at the front panel, the instru ment enters the wait -for-trigger state. Then the i nstrument executes a scan when an alarm is generated in the specified alarm channel. After executing the specified number of alarm triggers, the instrument exits the wait-for-trigger state.

During the scan, the instrument stores the measurement data, scaling data and alarm data in the non-volatile memory automatically.

The instrument triggers a scan when the trigger condition is met and scans the channels in the scan list in ascending order (from slot 1 to slot 5) automatically. Operations on any channe ls of the module of whi ch the channel is in the scan list are forbidden. You can press and hold Run/Stop at the front panel to stop the scan but after the scan has stopped, it cannot be resumed. When a new scan is executed, all the readings in the memory will be cleared.

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Measurement Configuration

Scaling Configuration

[1] [2]

Alarm Configuration

[2]

Advanced Configuration

Start

Done

Channel Configuration

After creating a new scan list and configuring proper parameters (such as the scan sweep and trigger mode), you nee d to add channels into the scan list and c on figure the measurement, scaling, alarm and advanced parameters of the channels. The M300 provides special channel configuration guide for you to easily finish the channel configuration.

The flow diagra m of the channe l configuration guide is as shown in the figure below .

Figure 2-3 Flow Diagram of Configuration Guide

[1]

Note

channels of the multifunction module, the configuration guide does not contain “Scaling Configuration”.

Note

enabled, you can connect an external DMM for scan and measurement. At this point, the configuration guide does not contain “Scaling Configuration” and “Alarm Configuration” and there are some differences in “Measurement Configuration” and “Advanced Configuration”.

Press Config  Edit  New to enter the channel configuration guide. After finishing all the configurations, press Done.

: For multiplexer channels using the “SENSOR” f unction or the DIO channels and TOT

[2]

: For the multiplexer channels, if the DMM module is not inserted or it is inserted but is not

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Measurement Configuration

The first step in the channel configuration guide: select the channel number, select the measurement function of the specified channel and configure the basic measurement parameters of the selected function.

Figure 2-4 Measurement Configuration

1 Channel Number

Select the desired channel number. Generally, the channel number is a 3-digit number where the first digit (from the left) denotes the number of the module slot and the other two digits denote the number of the channel.

SCC

The number of the channel (from 01 to 64)

The number of the module slot (from 1 to 5)

The channels available include all the channels of the multiplexer (S01 to S32/S64/S24), the DIO (S01 to S04) and TOT (S05 to S08) channels of the multifunction module.

After entering the channel configuration guide, Chan No. is selected by default. At this point, you can use the left/right direction key to modify the channel number or the numeric keyboard to input the channel number.

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Explanation:

2 Function

Use the up/down direction key to select Function and the left/right direction key to select the desired measurement function.

If the current channel is the voltage channel of the multiplexer, the measurement functions available include DCV, ACV, 2WR, 4WR (only supported by the first 16 channels of MC3132 and the first 10 channels of MC3120 and MC3324), FREQ, PERIOD, TEMP and SENSOR. If the channel is current channel (only for MC3324), the measurement functions available include DCI, ACV and SENSOR. After selecting the desired measurement function, please configure the basic measurement parameters for the function selected by referring to “Measurement Parameter Configuration” and press Next to configure the scaling or alarm parameters.

If the current channel is the DIO channel of the multi function module, Function is fixed a t “DIO”. Please refer to “Digital Input and press Next to configure the alarm parameters.

If the current channel is the T OT cha nnel of the m ultifunction module , Function is fixed at “TOT”. Please refer to “Totalizer press Next to configure the alarm parameters.

If you want to conf igure the channel of the multiplexer (MC3132 and MC3164), add it to the sca n list and use it for measurement, yo u need to first insert and enable the DMM module (Utility  DMM  “ON”) or connect an external digital multimeter.

” to set the basic parameters

” to set the basic param eters and

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Scaling Configuration

The second step of the channel conf iguration guide: configure the scaling parameters.

Figure 2-5 Scaling Configuration

Note: For multiplexer cha nnels that are using the “SENSOR” function and the DIO and TOT channels of the multi f unctio n mo dule, the configuration guide does not contain scaling configuration. Also note that the multiplexer channels that are not using the DMM module, the configuration guide also does not contain “Scaling Configuration”.

The M300 provides a scaling function. This function has three s caling coefficients (A, B and C) for all the readings of the channel selected. The formula for the scaling function is as follows.

Scaling Reading = A × (x - x1)

Wherein, x is the reading measured. x1 is the correction value (can be a reading measured at certain time or a value defined by user). Subtracting x1 from all readings can correct the zero point of the fitting curve.

You can configure the scaling function for all the multiplexer channels (except channels using the “SENSOR” function or when external DMM is connected). Before applying the scaling function, you must configure the measurement paramet ers of the channel. After applying the scaling function, if the measurement function is modified, the scaling function will be disabled and the scaling coefficients will be reset.

+ B × (x - x1) + C

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Coefficient Setting Explanation:

Sign Unit

Number

If the channel using the scaling function is removed from the scan list, the scaling function of the channel will be disabled but the scaling coefficients will not be reset. When the channel is added into the scan list again (without changing the measurement function), the scaling function will be enabled and the scaling coefficients remain unchanged.

For a channel using t he scaling function, when it is in single-channel monitor , all the measurement readings are scaling readings.

1 Enable Scaling Configuration

Enter the scaling configuration interface an d Scaling is selected by default. You can use the left/right direction key to select “ON”. At this point, the fitting function, coefficients and unit are displayed on the interface.

2 Set the Fitting Function Coefficients

Use the up/down direction key to select A, B and C respectively and use the numeric keyboard to input the desired values. The range is from -1E+15 to 1E+15 and the default is 0. The fitting function defined is displayed in Fitting.

3 Set x1

Use the up/down direction key to select x1 and press Curr Value to a cquire the current reading as x1. You also can set x1 by using numeric keyboard.

4 Set the Unit

Set the unit of the measu rement result . Use the up/ down direction k e y to se lect Unit and then press OK to enter the filename input interfa ce. Input the desired unit and press OK. The le ngth of user-defined units cannot exceed 3 bytes. You can use direction keys to select C, F and O respectively and then press and hold the OK key to enter ℃, ℉ and °.

When setting the fitting function coefficients (A, B and C), press any key on the numeric keyboard to open the dialog box in the form below.

 Sign: use the left dir e ction key to move the cursor to t he sign bit and press

+/- on the numeric keyboard to switch the sign to “+” or “-”.

 Unit: use the right direction key to move the cursor to the unit bit and use the

up/down direction key to select the desired unit. The unit s available include n

-9

), u (10-6), m (10-3), _ (1), K (103), M (106), G (109), T (1012) and P (1015).

(10

 Number: use the left/right direction key to move the cursor to the number bit

and use the numeric keyboard to input the desired value.

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Alarm Configuration

The third step of channel configuration guide: configure the alarm parameters.

Figure 2-6 Alarm Configuration

Note: For multiplexer channel, if the DMM module is not currently inserted or it is inserted but is not enabled, the configuration guide does not contain “Alarm Configuration” when you connect an external DMM to execute scan and measurement.

M300 has 4 alarm channels (Alarm1, Alarm2, Alarm3 and Alarm4; refer to “Alarm Channel Setting”). You can configure an alarm channel and set the alarm limits (high limit, low limit or both limits) for channel in the scan list. During the scan, an alarm will be generated in the alarm channel when readings that exceed the specified limit are detected.

If an alarm is generated during the scan, the alarm data is stored in the reading memory as well as the alarm queue which is sepa rate from t he reading me mory. The non-scanned alarms (alarms durin g sin gle-channel monitor, alarms generated by the DIO channel, etc.) can only be stored in the alarm queue.

You can assign multiple channels to any of the 4 alarm channels and use the same alarm limit on multiple channels, but you cannot assign multiple alar m channels a nd alarm limits to the specified channel.

You can configure the alarm parameters for the DIO and TOT channels that are not added into the scan list.

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1 Select the Alarm Mo d e

Enter the alarm configuration interface, Mode is selected by default and you can use the left/right direction key to select the desired mode. If the DIO channel is currently used, the options available are “OFF” and “ON”. If the TOT channel is currently used, the options available are only “NONE” and “HI”.

 NONE: disable the alarm configuration.  HI+LO: when the measurement value is greater than HI or lower than LO,

an alarm will be generated from the correspondin g a larm channel .

 HI: when the measu rement value or the c ount of the T OT channel is greater

than HI, an alarm will be gener ated from t he cor respondin g alarm chan nel .

 LO: when the measurement value is lower than LO, an alarm will be

generated from the corresponding alarm channel.

 OFF: disable the alarm parameters (only for DIO channel).  ON: enable the alarm configuration. Note that you need to select the alarm

channel, set the alarm condition, and alarm value (only for DIO channel).

2 Select the Alarm Channel

Use the up/down direction key to select Channel and use the left /right direction key to select the desired alarm channel.

 Alarm1: select Alarm1 as the alarm channel of the current channel.  Alarm2: select Alarm2 as the alarm channel of the current channel.  Alarm3: select Alarm3 as the alarm channel of the current channel.  Alarm4: select Alarm4 as the alarm channel of the current channel.

3 Set the Alarm Limits ( only for multiplexer channel and TOT channel)

After setting the alarm mode to “HI”, “LO” or “HI+LO”, you can use the up/down direction key to select HI and/or LO to set the alarm limits.  HI: use the numeric keyboard to input the desired value and p ress OK. For

TOT channel, the range of HI is from 0 to 2

-1 (4294967295).

 LO: use the numeric keyboard to input the desired value and press OK. Note: If the current alarm m ode is “HI+LO”, the value of HI must not be lower

than the current value of LO.

4 Set the Alarm Condition (only for DIO channel)

Use the up/down direction key to select Condition and use the left/right direction key to select the desired alarm condition.  Not Pattern: generate an ala rm when the rea din g of the current channel

does not match the alarm value set.

 Pattern: generate an alarm when the reading of the current channel

matches the alarm value set.

5 Set the Alarm Value (only for DIO channel)

Use the up/down direction key to select Value and use the numeric keyboard to input the desired alarm value. The alarm value is a binary number that is formatted in Bits configuration (8-bit, 16-bit or 32-bit). You can input a number

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outside the range but when you press OK, an error prompt message will be displayed. The instrument can also ignore some digits and alarm when the values of some digits are satisfied. Use “.” on the numeric keyboard to set the digits to be ignored and the corresponding position will display “x”.

Key Points:

1 Y o u must complete the measurement configuration and scaling configuration

before configuring the alarm parameters. If you change the measurement configuration or enable scaling function, alarms are turned off and the limit values are cleared.

2 If you remove a channel from the scan list, alarms are no longer evaluated on

that channel but the limit values are no t

cleared. If you decide to add that channel back to the scan list, the original limit values are restored and alarms are turned back on.

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Advanced Configuration

The fourth step of the channel configuration guide: configure the advanced measurement parameters relating to the function selected.

Figure 2-7 Advanced Configuration

The advanced pa rameters to be configured differ when different function is selected in the “Measurement Configuration” interface for the current channel.

1 Multiplexer Channel

According to the function currently selected, you need to configure the integration time, DC impedance, auto zero, etc. For details, please refer to “Measurement Parameter Configuration”.

2 DIO Channel

Select coding mode for the current DIO channel (refer to “Digital Input”).

3 TOT Channel

Set the reading mode for the current TOT channel (refer to “Totalizer”).

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Explanation:

channel are determined by the external DMM.

Channel Configuration When Using External DMM

For the multiplexer channels, if the DMM mod ule i s not inserted or enabled, you can connect an external DMM to realize scan and measurement function (for the connection method, please refer to “To Connect Instruments

Press Config  Edit  New to enter into the channel configuration guide which only contains measurement configuration and advanced configuration.

1 Measurement Configuration

After entering into the channel configuration guide, you can select desired channel number and use the up/down direction ke y to select the Mode item and then use the left/right direction key to select desired connection mode.  SCAN: 2-wire connection mode which is supported by all the multiplexer

channels.

 SCAN_4W: 4-wire connection mode which is supported by the first 16

channels of MC3132 and the firs t 10 channels of MC3120 and MC3324.

2 Advanced Configuration

Press Next to enter th e advance configuration interface and set the channel delay time according to “

Channel Delay”.

”).

In this case, M300 only control the connection mode (2-wire or 4-wire) a nd the delay time of the channels in the scan list. The function and parameters for each

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Function

Parameter

Range, Integration Time, In put I mpe dan ce, Auto Zero (AZ), Channel Delay

ACV

Range, AC Filter, Channel Delay

DCI

Range, Integration Time, Auto Zero (AZ), Channel Delay

ACI

Range, AC Filter, Channel Delay

2WR

Range, Integration Time, Of fset Compensation, Auto Zer o (AZ),

FREQ PERIOD

Model, Unit, Precision, Integration Time, T/C Check, Reference Source, Auto Zero (AZ), Channel Delay

Model, Unit, Precision, Integration Time , Aut o Zero (AZ), Channel Delay

RTD RTD 4W

R0, ALPHA, Unit, Precision, Integr ation T ime, Of fset Compensation, Auto Zero (AZ), Channel Dela y

Unit, Scaling, Integration Time, Input Im pedan ce, Auto Zero (AZ), Channel D elay

Unit, Scaling, Integration Time, Auto Zero (AZ), Channel Delay

2WR

Unit, Scaling, Integration Time, Offset FREQ

Unit, Scaling, AC Filter, Channel Delay

Measurement Parameter Configuration

This section introduces the measurement parameters (such as the range and integration time) that can be con figured in the first and fourth steps of the conf iguration guide. The parameters available for configuration vary for each measurement function as shown in the table below.

Table 2-1 Measurement Parameter

DCV

4WR

TEMP Type

SENSOR Type

Note: When the measurement function of the current channel is changed, all the parameters will be restored to their defaults.

Channel Delay Range, AC Filter, Gate Time, Channel Delay

TC THER

DCV DCI

4WR

Compensation, Auto Ze r o (AZ), Channel Delay

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Function

Range

DCV/ACV

Auto, 200 mV, 2 V, 20 V, 200 V, 300 V

DCI/ACI

Auto, 200 μA, 2 mA, 20 mA, 200 mA, 1 A

2WR/4WR

Auto, 200 Ω, 2 kΩ, 20 kΩ, 200 kΩ, 1 MΩ, 10 MΩ, 100 MΩ

FREQ/PERIOD

[1]

Auto, 200 mV, 2 V, 20 V, 200 V, 300 V

To Set the Range

The setting modes of range include “Auto” and “Manual”. In auto range mode, the instrument selects the proper range for each measurement according to the input signal automatically. In the manual range mode, users can select a fixed range for each channel. Auto ranging is convenie nt and manual ranging provides faster scanning because some additional time is required for the instrument to make a range selection in auto range mode.

Enter the first step of the channel configuration guide, select the desired channel number and function, use the up/down direction key to select Range and use the left/right direction key to select the desired range. The ranges available for each function are as shown in the table below.

Table 2-2 Range

[1]

Note

test and is used to calculate the measurement resolution. The measurement range of frequency/period is from 3 Hz to 1 MHz (1 μs to 0.33 s).

Key Points:

 Auto range threshold:

 If the input signal is greater than the current range, the instrument gives an  At power-on or after a reset, the range is “Auto” by default.

 “Auto” ran ge is recommen ded when it is hard t o p redict the measu rement rang e  For temperature measurements, the instrument internally selects the ran ge. It is

: In frequency/period measurement, the range set is the voltage range of the signal under

For signal under test with voltage/resistance that is between 10%*Range and 110%*Range, the inst ru m e nt s elects R ange as the current range automatically. For example, the signal under test for DCV measurement is 5 V (between 10%*20 V and 110%*20 V), the 20 V range is selected automatically.

overrange indication.

to protect the instrument and acquire more accurate data. not user selectable. For thermocouple measurements, the instrument internally

selects the 200 mV range. For thermist or, RTD and RTD 4W measurements, the instrument will autorange to the correct resistance range.

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Integration Time

The Integ ration time is t he period of time t hat the instrument’s analog-to-digita l (A/D ) converter samples the input signal for a measurement. The longer the integration time is, the slower the measurement speed and the better the measurement resolution will be. The shorter the integration time is, the faster the measurement speed and lower the measurement resolution will be. For the relationship betwee n integration time and resolution, please refer to “Specifications”.

Integra tion time i s applicab le to DCV, DCI, 2WR, 4WR, TEMP and SENSOR (except the FREQ sensor) functions. You can specify the integration time in the number of Power Line Cycles and aperture time.  Number of Power Line Cycles: the unit is PLC. It can be set to 0.02 PLC, 0.2 PLC,

1 PLC, 2 PLC, 10 PLC, 20 PLC, 100 PLC or 200 PLC a nd the defa ult i s 1 PLC. The instrument detects the power fre quency automat ically at power -on , freq uencies within 55 Hz and 66 Hz are regard ed as 60 Hz (PLC=1/60 s ). O t h e r frequencies are regard ed as 50 Hz (PLC= 1/50 s).

 Apert ure Time: user-defined integration time. The range is f ro m 33 μs to 4 s. When the current measurement function is DCV, DCI, 2WR , 4WR, TEMP or SENSOR

(except the FREQ sensor), enter the fourth step of the channel configuration guide, use the up/down direction ke y to sel ect Integ and u se the left/right direction key to select the desired integration time. The integration time can be set to “User”, “0.02PLC”, “0.2PLC”, “1PLC”, “2PLC”, “10PLC”, “20PLC”, “100PLC” and “200PLC”. If “User” is selected, you need to use the numeric keyboard to input the desired integration time and then press OK. The range is from 33 μs to 4 s.

Input Impedance

The DC input impedance setting is applicable to DCV and SENSOR (DCV sensor) measurement functions. T he def ault is 10 MΩ. For 200 mV , 2 V and 20 V ranges, you can select “>10 GΩ” to reduce the affect caused by the loading error of the measurement object. The current setting is stored in the volatile memory.

When the current measurement function is DCV or SENS OR (DCV se n s or), enter the fourth step of the channel configuration guide, use the up/down direction key to select IMP and use the left/right direction key to select the desired impedance.

 10M

Set the DC input impedance to 10 MΩ. The input impedances are 10 MΩ on all ranges.

 >10G

Set the DC input impedance to >10 GΩ. The input impedances are >10 GΩ on the 200 mV, 2 V and 20 V ranges and are 10 MΩ on the other ranges.

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Tip:

versa.

Auto Zero

Auto Zero (AZ) is applicable to DCV, DCI, 2WR, 4WR, TEMP ( RTD and RTD 4W) and SENSOR (except FREQ sensor) measurement functions.

When the current function is DCV, DCI, 2WR, 4WR or SENSO R (except FREQ sensor), enter the fourth step of the channel configuration guide, use the up/down direction key to select AZ and the left/right direction key to select “ON” or “OFF”.

 ON

When auto zero is enabled, the DMM internally disconnects the input signal following each measu rement and takes a zero reading. It then subtracts t he zero reading from the preceding reading (namely , during the measure ment, the value displayed is the difference between the measurement value and zero reading). This prevents offset voltages on the instrument’s input circuitry from affecting measurement accuracy.

 OFF

After pressing “OFF”, the auto zero function is disa bled. The DMM will still take a zero reading automatically each time the function, range, or integration time is changed and the instrument subtracts this zero reading from the succeeding measurement value.

Auto zero and offset compensation are mutually exclusive . After enabling auto zer o, offset compensation (if currently enabled) will be disabled automat icall y and vice

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Tip:

Input Frequency

AC Filter Typ e

3 Hz to 300 kHz

3 Hz (slow)

20 Hz to 300 kHz

20 Hz (medium)

200 Hz to 300 kHz

200 Hz (fast)

Offset Compensation

The Off set compensation setting is ap plicable to the 2 WR, 4WR, TEMP (RTD an d RTD 4W) and SENSOR (2WR sensor and 4W R sensor) meas urement functions. It removes the affects of small DC offsets of the measurement lead on the measurement result.

When the current measurement function is 2WR, 4WR, TEMP (RTD or RTD 4W) or SENSOR (2WR sensor or 4WR sensor), enter the fourth step of the channel configuration guide, use the up/down di recti on k e y t o select OCOM and use the left/right direction key to select “ON” or “OFF”.

 ON

After selecting “ON”, add two different currents onto the resistance under test and measure the variation of the voltage between two ends of the resistance. Calculate the resistance under test by dividing the voltage variation by the current variation.

 OFF

After selecting “OFF”, no offset compensation will be made.

Offset compensation and auto zero are mutually exclusive. After enabling offset compensation, auto zero (if currently enabled) will be disabled automatically and vice ve rsa.

AC Filter

AC filter is applicable to the ACV, ACI, FREQ, PERIOD and SENSOR (FREQ sensor) measurement functions. The AC filter optimizes the low frequency accuracy and minimizes the AC settling time. The instrument selects slow, medium or fast filter based on the frequency of the input signal of the current channel as shown in the table below.

Table 2-3 AC Filter Type

When the current measurement function is ACV, ACI, FREQ, PERIOD or SENSOR (FREQ sensor), enter the fourth step of the channel configuration guide, use the up/down direction key to select Filter and use the left/right direction key to select “3Hz”, “20Hz” or “200Hz”. The default is “20Hz”.

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A Scan

Channel Delay

Gate Time

Gate time (also called Ape rture Time) applies to FRE Q or PERIOD f unction. It decides the resolution of low-frequency measurement. The longer the gate time is, the higher the resolution of the low-frequency measurement is and the slower the measurement is, and vice versa.

When the current measu rement f unction is FREQ or PERIOD, enter the fourth step of the channel configuration guide, use the up/down direction key to select GateTime and use the left/right direction key to select “1ms”, “10ms”, “100ms” or “1s”. The default is “100ms”.

Channel Delay

Channel delay is a ppli ca bl e t o all the multiplexer channels. Channel delay is the time interval between two neighboring channels during a scan as shown in the figure below. During the scan, the instrument immediately disconnects the previous channel and closes the current channel after finishing measuring the previous channel. The instrument starts the next measurement after the specified channel delay time has been reached.

When the current channel is a multiplexer channel, enter the fourth step of the channel configuration guide, use the up/down dire ction key to select Delay and use the left/right direction key to select “Auto” or set a specific delay value.

 Auto

In auto mode, the instrument calculates the channel delay according to the function, range, integration time and AC filter of the current channel automatically. At this point, the channel delay time changes each time the configuration of the current channel is chan ged .

……

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Integration Time

[1]

Channel Delay

>1 PLC

2.0 ms

≤1 PLC

1.0 ms

Channel Delay

PLC)

Channel Delay

PLC)

200 Ω

2.0 ms

200 Ω

1.0 ms

2 kΩ

2.0 ms

2 kΩ

1.0 ms

20 kΩ

2.0 ms

20 kΩ

1.0 ms

200 kΩ

25 ms

200 kΩ

20 ms

1 MΩ

30 ms

1 MΩ

25 ms

10 MΩ

200 ms

10 MΩ

200 ms

100 MΩ

200 ms

100 MΩ

200 ms

AC Filter

Channel Delay

3 Hz (slow)

7.0 s

20 Hz (medium)

1.0 s

200 Hz (fast)

120 ms

AC Filter

Channel Delay

3 Hz (slow)

600 ms

20 Hz (medium)

300 ms

200 Hz (fast)

100 ms

Table 2-4 Auto Delay Time (a) DCV/DCI/TEMP (TC)/SENSOR (DCV/DCI) (all the ranges):

(b) 2WR/4WR/TEMP (THER/RTD/RTD 4W)/SENSOR (2WR/4WR):

Range

[1]

Note

integration time is set to “User”, the instrument calculates the channe l dela y according to the condition “Integration Time>1 PLC” automatically.

: For DCV, TEMP , 2WR, 4WR and SENSOR (except FREQ sensor), if the current

(Integration Time>1

[1]

Range

(Integration Time≤1

(d) FREQ/PERIOD/SENSOR (FREQ):

 Delay

Use the numeric keyboard to enter the desired delay. The range is from 0 to 60 s and the resolution is 1 ms.

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(9 / 5) 32

FC= ×+

273.15

KC≈+

Temperature Measurement Parameters

The parameters to be set in temperature measurement are as shown in Table 2-1. Wherein, for the integration time, offset compensation and channel delay, refer to the introduction in the preceding section. This section introduces the configuration methods of the other parameters.

1 Select the temperature sensor type

Enter the first step of the channel configuration guide, select the desired channel number and function (TEMP), use the up/down direction key to select Type and use the left/right direction key to select the desired sensor type.

 TC: thermocouple  THER: thermistor  RTD: thermal resistance, 2-wire connection mode  RTD 4W: thermal resistance, 4-wire connection mode, not applicable to

single-ended multiplexer

2 To select the unit

Use the up/down direction key to select Unit and the left/right direction key to select the desired unit. The M300 can report temperature measure ments in ℃ (Celsius), ℉ (Fahrenheit) and K (Kelvins). The temperature conversion relations are as shown below.

Different channels on the same module can use different temperature units.

3 Use Thermocouple to Measure Temperature

The thermocouple is one of the most commonly used devices for measuring temperature in industry. It converts temperature variation information into voltage variation information. It provides larger temperature measurement range.

 Model

After setting the temperature sensor type to TC, use the up/down di recti on key to select Model and use the left/right direction key to select the desired model.

The M300 supports the following t hermocouple ty pes: B (Pt Rh 30- Pt Rh6), E (NI CR-WRCK), J (Fe-WRCK), K (NI CR-NiSi), N (NiCrNi-NiSi), R (Pt Rh13

-Pt), S (Pt Rh10-Pt) and T (C u-WRCK). Among them, B, R and S are precious metal thermocouples. E, J, K, N and T are low cost metal thermocouples. For the reference table about each thermocouple, please refer to the ITS-90 (International Temperature Scale of 1990) standards.

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 Precision

After setting the temperature sensor type to TC, use the up/down di recti on key to select Precision and use the left/right direction key to select “1” or “0.1”.

 T/C Check

The T/C Check (Thermocouple Check) function checks whether the TC is connected correctly. After setting the temperature sensor type to TC, enter the fourth step of the channel configuration guide, use the up/down direction key to select T/C Check and use the left/right direction key to select “ON” or “OFF”. When “ON” is selected, the instrument measures the channel resistance (in the 20 kΩ range) automatically after each thermocouple measurement to ensure a proper connection. If an open connection is detected (greater than 5 kΩ), the instrument displays “OPEN T/C”.

 Reference Source

Thermocouple measurements require a reference junction temperature. After setting the temperature sensor type to TC, enter the fourth step of the

channel configuration guide, use the up/down direction key to select Ref and use the left/right di rection key to sele ct “Fixed”, “Internal” or “External”. a) Fixed: select a f ixed reference temperature. Then use up/down

direction key to select Fixed and use the numeric keyboard to input desired temperature. The range is from -20℃ to 80℃ (always specify the temperature in ℃ regardless of the temperature units currently selected). Using this type of reference source, you can obtain the highest measurement precision.

b) Internal: select an internal isothermal reference temperature on the

module. Using this type of refe rence source, you will obtain the lowest measurement precision.

c) External: before selecting external reference, please find the first

module which supports te mperature measu rement function from Slot1 . Then configure the first channel of this module to perform a temperature measurement function. The selected type can be THER, RTD or RTD 4W. Otherwise, you cannot select external reference for other channels. This channel is then reserved as the reference source. At this point, you can select other external references for other channels. If this channel is deleted or its function is modified, the channels taking this channel as reference source will revert to the internal reference automatically.

4 Use thermistor to measure temperature

A thermistor is made up of material of which the resistance changes with temperature and it converts temperature variation information to resistance variation information. Thermistor is especially sensitive to temperature but its

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temperature measurement range is small and is more suitable for measurements with relatively small temperature variations.

Thermistor resistance is usually very high. Therefore, the 2-wi re resistance method is preferred when measuring the resistance of the thermistor. The internal software conversion prog r am converts the resistance measu red to the corresponding temperature.

 Model

After setting the temperature sensor type to THER, use the up/down direction key to select Model and use the left/right direction key to select the desired model (2.2kΩ, 3kΩ, 5kΩ, 10kΩ or 30kΩ).

 Precision

After setting the temperature sensor type to THER, use the up/down direction key to select Precision and use the left/right direction key to select “1”, “0.1” or “0.01”.

5 Use RTD to measure temperature

RTD measures the temperature on the basis that the resistance of the measured substance changes with te mperatu re. It features in high measurement accuracy and stabl e performance.

The instrument can measure the resistance using 2-wire (RTD) or 4-wire (RTD 4W) method. The internal software conversion program converts the resistance measured to the corresponding temperature. For the reference table about each kind of RTD, please refer to the related standards.

 R0

After setting the temperature sensor type to RTD or RTD 4W, use the up/down direction key to select R0 and use the numeric keyboard to input the desired resistance. The range is from 49 Ω to 2100 Ω and the default is 100 Ω.

 ALPHA

Temperature coefficient. After setting the temperature sensor type to RTD or RTD 4W, use the up/down direction key to select ALPHA and use the left/right direction key to select the desired coefficient (0.00385, 0.00389, 0.00391 or 0.00392).

 Precision

After setting the temperature sensor type to RTD or RTD 4W, use the up/down direction key to select Precision and use the left/right direction key to select “1”, “0.1” or “0.01”.

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Tip:

RIGOL to acquire the manual).

For the temperature measurement principles of thermocouple, RTD and thermister, refer to the

Temperature Measurement Technique Application Instruction

(contact

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Any Sensor Measurement Parameters

Any sensor measurement supports DCV, 2WR, 4WR and FREQ sensors. With the any sensor measurement function, you can easily convert the measured quantity (pressure, flow, temperature, etc.) to quantity that is easy to measure (voltage, resistance, etc.). After inputting the response curve, the instrument converts and amends the data according to the internal arithmetic to obtain the physical quantity measured. Users can edit and modify the display unit of the measured physical quantity at will. The parameters for the any sensor measurement function are as shown in Table 2-1. Wherein, the integratio n time a nd AC filter are introduced in the preceding section a nd this section int roduces the configuration methods of the other parameters.

1 Select the sensor type

Enter the first step of the channel configuration guide, select the desired channel number and function (SENSOR), use the up/down direction key to select Type and use the left/right direction key to select the desired type (DCV, DCI, 2WR, 4WR or FREQ).

2 Set the unit

Use the up/down dire ction k ey to select Unit a nd use the left/right direction key to select the desired unit (°, ℃, % , ℉ , Ω o r K ).

You can also define a unit. Select “User” and press OK to enter the f ilename input interface. Input the desired unit and press OK. The length of user-defined unit cannot exceed 3 characters.

3 Configure the arithmetic curve

Use the up/down direction key to select Scaling and “Ax^2+Bx+C” is displa yed by default. Press OK to open the configuration list interface. The arithmetic between the first start value and the second start value conforms to the firs t fitting function, the arithmetic between the s econd start v alue and the third star t value conforms to the second fitting function, ……, from the last start value on, the arithmetic conforms to the last fitting function.

 Add

This menu is used to add the start value and fitting function. Press this softkey to open the any sensor configuration interface.

Start Value: use the up/down direction key to select Start and use the numeric keyboard to input the desired value between -1E+15 and 1E+15.

Fitting Function Coefficients: use the up/down direction key to select A, B and C respectively and use the numeric keyboard to input the desired

values between -1E+15 and 1E+15.

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Start Value and Coefficient Setting Explanation:

press any key on the numeric keyboar d to open the dialog box in the f orm

and use the numeric k eyboa rd to in put th e desired value .

Sign Unit

Number

When setting the start v alue an d fitting function coefficients (A, B and C), below.

 Sign: use the left direction key to move the c ursor to the sign bit and

press +/- on the numeric keyboard to switch the sign to “+” or “-”.

 Unit: use the right direction key to move the cursor to the unit bit

and use the up/down direction key to select the desired unit. The units available are related to the sensor type currently selected. The unit coefficients include n (10

(10

), G (109), T (1012) and P (1015).

-9

), u (10-6), m (10-3), _ (1), K (103), M

 Number: us e th e l e f t /right directio n key t o m ove the cursor to the

number bit

+25 V

After configuring a group of start value and fitting function, press Done to return to the arithmetic curve configuration list interface. Press Add again to configure the next group of start value and fitting function.

 Delete

Use the up/down direction key to select a group of start value and fitting function in the arithmetic curve configuration list interface and press Delete to delete the configuration selected.

 Modify

Use the up/down direction key to select a group of start value and fitting function in the arithmetic curve configuration list interface and press Modify to enter the any sensor configuration interface. At this point, you can modify this group of configuration.

 Done

Finish the arithmetic curve configuration and return to the measurement conf iguration interface.

 Return

Give up the configuration currently edited and return to the measurement conf iguration interface.

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Digital Input

The multifunction module has four non-is olated 8-bit digital in put/output (DIO) p orts which you can use as digital output ports (refer to “Module Control input ports. When used as digital input ports, you can read the real-time status of each bit of the ports a nd read the digital signal a utomat ically by configuring the DIO channels into the scan list via the channel configuration guide (or press Control and use the left/right direction key to select the multifunction module and the press Config).

DIO channel configuration guide includes “Measurement Configuration”, “Alarm Configuration” and “Advanced Configuration”. For alarm configuration, refer to “Alarm Configuration”. This section introduces the parameters to be set in “Measurement Config uration” and “Advanced Configuration” for the DIO channels .

1 Chan No.

Enter the first step of the channel configuration guide. Use the up/down direction key to s e l e ct Chan No. and use the numeric keyboard to input or use the left/right direction key to select the desired channel number. Generally, the DIO channels are nu mbere d “S01” to “S04” where S denotes the slot number o f the multifunction module.

2 Function

After selecting the correct channel number, Function is fixed to “DIO” and users cannot modify it.

3 Status

Use the up/ down direction key to select Status and use the left/right direction key to select the desired status.  READ: configure the curre nt DIO channel to the scan list. At this point, this

channel can only be used as a digital input port. During a scan, the instrument can read the digital signal of this channel.

 OFF: do not configure the current DIO channel to the scan list. At thi s point,

this channel can be used as both digital input (you can read the digital input signal of this port manuall y) an d digital output port ( you can e dit the digital output signal of this port). Please refer to the introduction in “To Control

MC3534”.

4 Bits

Use the up / down dire cti on k e y to sel ect Bits and us e t he le ft/right di rection k ey to select the desired number of bits. Channels “S01” to “S04” are all 8-bit ports. You can configure the 4 channels to be independen t 8-bit channels. Y ou can also combine “S01” and “S02” as well as “S03” and “S04” respectively and configure them to 16-bit. Finally, all 4 channels can be combined and configured to be 32-bit input.

”) and digita l

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S01

XXXXXXXX

S02

XXXXXXXX

S03

XXXXXXXX

S04

XXXXXXXX

S02S01

S04S03

S04S03S02S01

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

8-bit

16-bit

XXXXXXXXXXXXXXXX

32-bit

Note: In the 16-bit S02S01, S02 is the upper 8-bit bank. In the 16-bit S04S03, S04 is the upper 8-bit bank. In the 32-bit S04S03S02S01, S04 is the upper 8-bit bank.

5 Type

When the channel status i s READ , us e the u p/down direction k ey t o select Type and use the left/right direction key to select the desired level (“TTL”, “CMOS5V”, “CMOS3.3V”, “CMOS2.5V” or “User”). If “User” is currently selected, use the up/down direction key to select Level and Threshold respectively and use the numeric keyboard to input the desired values.

 The range of level is from 2.000 V to 5.000 V and the default is 5.000 V.  The range of threshold is from 0.500 V to 3.500 V and the default is 2.500 V.  When setting the level and threshold, they should fulfill the relation

equation: Level ≥ Threshold + 0.5 V.

 When the input signal <Threshold–0.3 V, it is regarded as logic 0; when the

input signal >Threshold+0.3 V, it is regarded as logic 1.

6 Coding

Enter the fourth step of the channel configuration guide. By default, Coding is selected and use the left/right direction key to select “Binary”, “Decimal” or “Hex”.

The coding mode selected will be used in both the digital input and output of this channel.

Key Points:

1 When the DIO channels are used as digital input channels, they do not have to

be part of the scan list and the DMM module does not have to be enabled to generate an alarm when the reading matches or does not match the specif ic data pattern.

2 DIO channels added into the s can list cannot be used as digital output channel s.

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Totalizer

The multifunction module provides four 32-bit totalizers (TOT) which can count TTL pulses at a 10 MHz rate (for high-speed TOT channels) or 100 kHz rate (for normal TOT channel s). You can manually read the TOT count or you can read the TOT count automatically by configuring the TOT channels to a scan list via the channel configuration guide.

The TOT chan nel configuration guide cont ains “Measurement Configuration” , “Alarm Conf iguration” and “Advanced Configuration”. For alarm configurati on, refer to “Alarm Configuration”. This section introduces the parameters to be set in “Measurement Config uration” and “Advanced Configuration” for the TOT channels.

1 Chan No.

Generally, the TOT channels are numbered “S05” to “S08” where S deno te s the current slot number of the multifunction module. “S05” and “S06” are high-speed TOT channels and can count T TL pulses at a 10 MHz rate. “S07” and “S08” are normal TOT channels with 100 kHz count rate.

2 Function

After selecting the correct channel number, Function is fixed at “TOT” and users cannot modify it.

3 Status

Use the up/down direction key to select Status and use the left/right direction key to select the desired status.  READ: configure the current TOT channel to the scan list. During a scan,

the instrument can read the current TOT count.

 OFF: do not configure the current T OT channel to t he scan list. You can start

and stop the counting or read the count of the TOT channel manually. Please refer to the introduction in “To Control MC3534”.

4 TrigMode

When the channel status is READ, use the up/down direction key to select TrigMode and use the left/right direction key to select the desired mode.  Rising: configure the totalizer to count on the rising edge of the input signal

when the input signal passes through the trigger threshold.

 Falling: configure the totalizer to count on the falling edge of the input

signal when the input signal passes through the trigger threshold.

Note: The “TrigMode” here refers to the mode in which to trigger the counting of the totalizer. Please pay attention to distinguish it from the “TrigMode” of the

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instrument.

5 Threshold

For TOT channels “S07” and “S08”, after selecting the trigger mode, use the up/down direction key to select Threshold and use the numeric keyboard to input the desired value between -12 V and +12 V.

Note: This function is only applicable to T O T chan nels “S07” and “S08”. For TOT channels “S05” and “S06”, the threshold is fixed at CMOS 3. 3 V.

The terminal block of the multifunction module prov ides G and G# terminals which are used to control the trigger of the TOT channels.  A TTL high le vel a pplied to the G terminal and a TTL l ow level applied t o the

G# terminal enables counting.

 Only providing a TTL high level applied to the G terminal enables counting.  Only provide a TTL low level applied to the G# terminal enables counting.  When a gate signal is n ot detected in b oth the te rminals, counting is alw ays

enabled.

6 Read

Enter the fourth step of the channel configuration guide. Use the up/down direction key to select Read and use the left/right direction key to select the desired setting.  READ&RST: read the count and reset the totalizer without losing any

counts.

 READ: only read the count.

Key Points:

1 The maximum count is 4294967295 (2

-1). The count rolls over to 0 after

reaching the maximum allowed value.

2 You can configure the instrument to generate an alarm in the specified alarm

channel when a specific count is reached for TOT channel that is not added to the scale list (the channel status is OFF). Please refer to “Alarm Configuration” to configure the desired parameters.

3 Y ou can e xecute single -channel m onitor on a T O T channel ev en if the channel i s

not part of the scan list (the channel status is OFF).

4 “S05” and “S06” are high-speed TOT channels with 10 MHz count rate; the y only

receive standard T T L pulse or 3.3 V to 5 V square si gnal and their th resholds are decided by the internal circuit. “S07” and “S08” are normal TOT channels with 100 kHz count rate. They can receive analog signal or TTL pulse and their thresholds are set by users (the range is from -12 V to +12 V).

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Configuration Copy

The configuration copy function supports module copy, channel copy and extended copy. Press Config  Edit  Copy to enter the copying interface.

Figure 2-8 Configuration Cop y

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Module Copy

Module copy ca n copy the configuration of a module (source module) to another module (target module) of the same model. After that, the configuration of each channel of the source module is copied to the target module automatically.

Press Module to enter the module copy interface.  Switch: switch the cursor between the “Source Module” and “Target Module”

areas.

 OK: copy the configuration of the source module selected to the target module

selected.

 Return: return to the upper-level menu.

Figure 2-9 Module Copy

Steps of Module Copy:

1 After entering the module copy interface, the “Source Module” area is selected

by default. Use the up/down direction key to select the desired source module.

2 Press Switch to move the cursor to the “Target Module” area and use the

up/down direction key to select the desired target module.

3 Press OK to execute module copy. Note: The sour ce module and target module selected must be of the same model

and it is forbidden to copy the configuration of a module to itself.

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Channel Copy

Channel copy can copy the configuration of a channel (source channel) to another channel or multiple channels (target channels) of the same type. After that, the following settings of the source channel are copied to the target channels automatically. 1 Measurement Configuration: include measurement function, range, etc. 2 Scaling Setting: on/off status of the scaling function and scaling coefficients. 3 Alarm Setting: on/off status of the alarm function, alarm channel number and

alarm limits.

4 Advanced Configuration: include integration time, AC filter, etc. Press Channel to enter the channel copy int erface. This inte rf ace is divided into the

upper and lower areas.  Switch: switch the cursor to select desired area. This menu is available only

when the current scan list has 2 or more channels.

 Upper Area: use the chan nel s elected as the source channel. Yo u can select the

target channels.

 Lower Area: use the channel selected as the target channel. Yo u can select the

source channel.

 Done: copy the configuration of the source channel selected to the target

channel selected.

 Return: return to the upper-level menu.

Figure 2-10 Channel Copy

Steps of Channel Copy:

After entering the channel copy interface, the channel selected is fixed as the source channel and the upper area is selected by default. Use the left/right direction key to select the desired target channels, press OK to confirm it (press OK again to cancel

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it) and press Done to execute the channel copy. You also can press Switch to fix the channel selected as the target channel after

entering the channel copy inte rface. At thi s point, the lower area is selected. Use the left/right direction key to select the desired source channel and press Done to execute channel copy.

Tips:

1. When the channel selected is fixed as the source channel, multiple target channels can be selected and are displayed in the lower area.

2. When the channel selected is fixed as the target channel, only one source channel can be selected.

3. The Switch menu is gray and disabled if the scan list only has one channel.

Note: For channel copy, only copies between the same type of channels are allowed .

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Extended Copy

Extended copy allows copying the configuration of a channel (source channel) of a module to all the channels (which t y pe is t he same to that of the source cha nnel) of the target module. After that, the following settings will be copied to the target module automatically. 1 Measurement Configuration: include measurement function, range, etc. 2 Scaling Setting: on/off status of the scaling function and scaling coefficients; 3 Alarm Setting: on/off status of the alarm function, alarm channel number and

alarm limits;

4 Advanced Configuration: include integration time, AC filter, etc. Press Extended to enter the extended copy interface.

 Switch: switch the cursor between the “Source Channel” area and “Target

Module” area.

 OK: copy the configuration of the source channel selected to the target module

selected.

 Return: return to the upper-level menu.

Figure 2-11 Extended Copy

Steps of Extended Copy

1 After entering the extended copy interface, the “Sour ce Channel” area is

selected by default. Use the direction keys to select the desired source channel.

2 Press Switch to move the cursor to the “Target Module” area and use the

up/down direction key to select the desired target module.

3 Press OK to execute extended copy.

Note:

For extended copy, only copies among the same type of modules are allowed. This function makes it easy to configure several channels for the same measurement.

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Channel Monitor

The channel monitor function of M300 allows users to monitor a single channel, multiple channels, or all of the channels in the scan l ist. The instrument m onitors the channel and takes readings from the channel monitored contin uously even during a scan. This function is helpful for troubleshooting your system before a test or for watching an important signal.

The channel monitor function can monitor the following channels: multiplexer channels (configured to the scan list and the DMM module is ena bled), DIO and T O T channels of the multifunction module (no mat ter wh ether they a re configured to the scan list and the DMM module is not required).

Press Monitor at the front panel to configure the channel monitor function.

Single-channel Monitor

Press Monitor  Single to enter the single-channel monitor interface as shown in Figure 2-12 and by default, the first channel in the scan list is monitored. If no scan list is currently configured, the first channel of the multifunction module (DIO channel) is monitored.

Channel Number Module Type Function Range

Alarm Channel Alarm Value Alarm State

Scaling Value Measurement Value System Time

Figure 2-12 Single-channel Monitor

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1 Channel Number

The channel number is in the editable status. At this point, you can modify the number of the channel monitored by inputting the desired channel number using the numeric keyboard (you can also press Single at the front panel to switch the channel monitored).

Note: If the channel number of the multiplexer channel that is not added into the scan list is input, the instrument will generate an error prompt message.

2 Module Type

Display the module type of the channel currently mo nitore d. MUX-20: 20-Channel Multiplexer and its model is MC3120 MUX-32: 32-Channel Multiplexer and its model is MC3132 MUX-64: 64-Channel Single-Ended Multiplexer 64 and its model is MC3164 MUX-MIX-24: 24-Channel Multiplexer and its model is MC3324 MFC: Multifunction Module and its model is MC3534

3 Function

Display the function (DCV, ACV, DCI, ACI, 2WR, 4WR, FREQ, PERIOD, TEMP, SENSOR, DIN or TOT) of the channel currently monitored.

4 Range

Display the range of the channel currently monitored. This is only applicable to multiplexer channels.

5 Scaling Value

Display the scaling value of the channel currently monitored (only when the current channel uses the scaling function).

6 Measurement Value

Display the measurement value of the channel currently monitored. For TOT channel, the count value is displayed. If the current channel does not use the scaling function (the scaling value is not displayed), the measurement value is displayed at the center of the screen in relatively larger font size.

7 Alarm Channel/A l ar m Value/Ala rm State

Display the alarm information of the channel currently monitored, including the alarm channel, alarm v alue (display ed only when ala rm is ge ne rated) and ala rm state (PASS, LO FAIL or HI FAIL). For DIO channels , the alarm sta te can be PAS S, EQU FAIL or NOT EQU FAIL. If the channel monitored does not use the alarm function, “ALARM NO CONFIGURE” will be displayed.

8 Syste m Time

Display the system time.

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Key Points:

1 For single-channel monitor function, only one channel can be monitored at a

time, but you can change the channel being monitored at any time.

2 Readings acquired during a monitor are not stored in memory but they are

displayed on the screen.

3 When the alarm function are applied to the selected channel during monitor, all

the alarm data is sto red in the al arm queue (which will be cleared at power -off).

4 You can monitor a multiplexer channel only if the DMM module is installed and

enabled (Utility  DMM  “ON”). The channel must also be configured to be part of the scan list.

5 Y ou can monitor a DIO or T OT cha nnel even if the channel is not pa rt of the scan

list.

Multi-channel Monitor

Press Monitor  Multiple to enter the multi-c hannel monitor interface. At mos t 7 channels can be monitored. Yo u can add or delete the channels being monitored.

 Add: use the numeric keyboard to input the channel number.  Delete: use the up/down d irection key t o select the de sired channel nu mber and

then press Delete.

All Channel Monitor

Press Monitor  A ll Mon i to enter the all channel monitor interface. All channels in the scan list can be monitored.

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Explanation:

Module Control

The M300 provides a user-friendly module control interface. Press Control at the front panel to enter the interface as show n in Figure 2-13. Yo u can control the status of each module (except the DMM module).

The 5 column diagrams in the module control interface represent the 5 slots. The corresponding number (such as slot1) and type of the module inserted into the slot are displayed above and below t he column diag ram re spectively and the name of the module is displayed in the middle of the colu mn dia gr am. Use the left/right direction key to select the desired module (slot without module and slot with the D MM module cannot be selected). The module currently selected is displayed in blue. Press Single to enter the control interface of the module currently selected.

Note: In the module control interface, the model and name of the module are related to the module currently inserted into the instrument.

Module Model Module Name Slot Number

Figure 2-13 Module Control Interface

When the multiplexer is used as the DMM input channel, only one channel can be closed at each time. For example, use channel 1 of MC3132 to measure temperature and channel 2 to measure DCV. The instrument first closes channel 1 to measure temperature, and then disconnects channel 1 and closes channel 2 to measure DCV (namely, the “break-before-make” feature).

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H L

...

H L

...

DMM

Source

H L

DMM

Sense

H L

Bank Switch

Channel Switches

Backplane Switches

Com

(4W Sense)

H L

Com

Signals

to be

Measured

Reference

Junction

Terminal Block: M3TB20

H L

78-Pin

Interface

To Control MC3120

MC3120 is a 20-channel multiplexer (MUX-20 for short). MC3120 is divided into two banks of 10 two-wire channels (HI and LO) each and can be used for 2-wire and 4-wire connections. When making 4-wire resista nce measurement, the instrument automatically pairs channel n with channel n+10 (wh erein, n is an inte ger between 1 and 10). MC3120 is used with the external terminal block (M3TB20) which has a built-in thermocouple reference junction.

Figure 2-14 MC3120 Schematic Diagram

The control interface of MC3120 is as shown in Figure 2-15. Use the up/down and left/right direction ke ys to select the desired cha nnel. The channel current ly sel ected

is highlighted, for e xam ple ,

. You can perfor m v ariou s oper ations on the channel

currently selected (suc h as o pen or close the channel).

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2-49

Figure 2-15 MC3120 Control Interface (Bank Joined)

If the channel currently selected is not added to the scan list and other channels of the module are not added to the scan list, p ressing OK can close the channel. At this point, pressing OK again can open the channel. If the channel is added to the scan list, pressing OK can close the channel and read the measurement result (before closing this channel, the instrument opens the channel currently closed). Pressing

OK again can read the measurement result again.

1 Open

Disconnect the channel currently selected. The channel number of the channel currently disconnected is displayed in gray, for example,

. If one or more channels of the current module are added to the scan list, this operation is invalid.

2 Close

Close the channel currently selected. The channel number of the channel currently closed is displa yed in green, f or e xample,

. If one or more channels

of the c urrent module are added to the scan list, this operation is invalid.

3 Read

Read the measurement value of the current channel. This operation is only applicable to channels added to the scan list.

4 Card Reset

Initialize the status of each channel of the current module. If one or more channels of the current module are added to the scan list, this operation is invalid.

M300 User’s Guide

RIGOL Chapter 2 Front Panel Operations

5 Bank Separate/Bank Joined

By default, this module is in “Bank Joined” state (namely the bank switch in Figure 2-14 is closed and the control interface is as shown in Figure 2-15

). At this point, this module can only be used for 2-wire connection. Press Page Dn  Bank Sepa to execute the “Bank Separate” operation (namely disconnect the bank switch in

Figure 2-14 and the control interface is as shown in Figure 2-16). At this point, this module is divided into two independent banks and can be used f o r 4-wire connection. When it is used for 4-wire resistance measurement, the instrument pairs channel n and channel n+10 automatically (wherein, n is an integer between 1 and 10). Channel n is used to connect the source terminal of DMM and channel n+10 is used to connect the sense termi nal of DMM.

Figure 2-16 MC3120 Control Interface (Bank Separate)

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2-51

H L

...

H L

...

DMM

Source

H L

DMM

Sense

H L

Bank Switch

Channel Switches

Backplane Switches

Com

(4W Sense)

H L

Com

Signals

to be

Measured

Reference

Junction

Terminal Block: M3TB32

H L

78-Pin

Interface

To Control MC3132

MC3132 is a 32-channel multiplexer (MUX-32 for short). MC3132 is divided into two banks of 16 two-wire channels (HI and LO) each and can be us ed for 2-wire an d 4-wire connections. When making 4-wire resista nce measurement, the instrument automatically pairs channel n with channel n+16 (wh erein, n is an inte ger between 1 and 16). MC3132 is used with the external terminal block (M3TB32) which has a built-in thermocouple reference junction.

The control interface of MC3132 is as shown in Figure 2-18. Use the up/down and left/right direction ke ys to select the desired cha nnel. The channe l curre ntly se lected

is highlighted, for exampl e, currently selected (such as disconnect and close the channel).

M300 User’s Guide

Figure 2-17 MC3132 Schematic Diagram

. You can perfor m v ariou s oper ations on the channel

RIGOL Chapter 2 Front Panel Operations

Figure 2-18 MC3132 Control Interface (Bank Joined)

If the channel currently selected is not added to the scan list and other channels of the module are not added to the sca n list, pressing OK can close the channel. At t his point, pressing OK again can open the channel. If the channel is added to the scan list, pressing OK can close the channel and read the measurement result ( bef ore closing this channel, the instrument opens the channel currently closed). Pressing

OK again can read the measurement result again.

1 Open

Disconnect the channel currently selected. The channel number of the channel currently disconnected is displayed in gray, for example,

. If one or more channels of the current module are added to the scan list, this operation is invalid.

2 Close

Close the channel currently selected. The channel number of the channel currently closed is displayed in green , for e xample,

. If one or more channels

of the current module are added to the scan list, this operation is invalid.

3 Read

Read the measurement value of the current channel. This operation is only applicable to channels added to the scan list.

4 Card Reset

Initialize the status of each channel of the current module. If one or mo re channels of the current module are added to the scan list, this operation is invalid.

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2-53

5 Bank Separate/Bank Joined

By default, this module is in “Bank Joined” state (namely the bank switch in Figure 2-17 is closed and the control interface is as shown in Figure 2-18

). At this point, this module can only be used fo r 2-wire connection. Press Page Dn  Bank Sepa to execute the “Bank Separate” operation (namely disconnect the bank switch in

Figure 2-17 and the control interface is as shown in Figure 2-19). At this point, t his module is divided into two independent banks and can be used f o r 4-wire connection. When it is used for 4-wire resistance measurement, the instrument pairs channel n and channel n+16 automatically (wherein, n is an integer between 1 and 16). Channel n is used to connect the source terminal of DMM an d channel n+16 is used to connect the sense te rminal of DMM.

Figure 2-19 MC3132 Control Interface (Bank Separate)

M300 User’s Guide

RIGOL Chapter 2 Front Panel Operations

...

DMM

Source

H L

Bank Switch

Channel Switches

Backplane Switches

Com H Com L

Signals

to be

Measured

Reference

Junction

Terminal Block

: M

TB64

Interface

Com L

To Control MC3164

MC3164 is a 64-channel single-ended multiplexer (MUX-64 for short). MC3164 is divided into two banks of 32 single-ended channels (HI only, the 32 channels has a common LO terminal) each and cannot be used for 4-wire connection. MC3164 is used with the external terminal block (M3TB64) which has a built-in thermocouple reference junction.

Figure 2-20 MC3164 Schematic Diagram

The control interface of MC3164 is as shown in Figure 2-21

. Press Page Up and Page Dn at the front panel to open the previous and next pages of the control interface. Use the u p/down and left/ right di rection k eys t o select t he desi red channel.

The channel currently selected is highlighted, for example,

. You can perform various operations on the channel currently selected (such as disconnect and close the channel).

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RIGOL M300, M301, M302 Users guide

Specifications and Main Features

Frequently Asked Questions

User Manual

Guaranty and Declaration

Safety Requirement

General Safety Summary

Safety Terms and Symbols

Allgemeine Sicherheits Informationen

Sicherheits Begriffe und Symbole

General Care and Cleaning

Environmental Consideratio ns

M300 Overview

Document Overview

Chapter 1 Quick Guide

General Inspection

Appearance and Dimensions

Front Panel

Rear Panel

Power On Inspection

User Interface

To Input Filename

Plug-in Module Overview

Outside View Drawing of the Module

Insert the Module into the Mainframe

Module Overview

To Use the Built-in Help System

Measurement Connections

To Replace the Fuse

Menu Quick Navigation

Config

Monitor

View Switch Key

Control

Alarm Channel Setting Keys

Chapter 2 Front Panel Operations

Scan Configuration

Scan List

To Create a New List

To Edit the List

To Save the List

To Read the List

Trigger Mode

Auto Trigger

Manual Trigger

External Trigger

Absolute Time Trigger

Alarm Trigger

Channel Configuration

Measurement Configuration

Scaling Configuration

Alarm Configuration

Advanced Configuration

Channel Configuration When Using External DMM

Measurement Parameter Configuration

To Set the Range

Integration Time

Input Impedance

Auto Zero

Offset Compensation

AC Filter

Channel Delay

Gate Time

Temperature Measurement Parameters

Any Sensor Measurement Parameters

Digital Input

Totalizer

Configuration Copy

Module Copy

Channel Copy

Extended Copy

Channel Monitor

Single-channel Monitor

Multi-channel Monitor

All Channel Monitor

Module Control

To Control MC3120

To Control MC3132

To Control MC3164