NF WF1945B Manuel utilisateur

INSTRUCTION MANUAL

NF Corporation

http://www.nfcorp.co.jp/

NF Corporation

6-3-20, Tsunashima-higashi, Kohoku-ku,Yokohama 223-8508 JAPAN

WF1945B

MULTIFUNCTION SYNTHESIZER

WF1945B

DA00012505-002

WF1945B

MULTIFUNCTION

SYNTHESIZER

Instruction Manual

WF1945B i

Foreword

Thank you very much for procuring the WF1945B MULTIFUNCTION SYNTHESIZER. At the outset,

please take a few minutes to read the Safety Precautions indicated in this manual in order to use this equipment

safely and correctly.

●Warning and Caution notices

The following Warning and Caution notices appear in this manual. These must be observed in order to

protect both the user from physical harm and the equipment from damage.

Risk of serious and possibly fatal physical injury from electric shock or other cause.

Risk of damage to the equipment.

●Manual composition

Please read Section 1 before using the equipment for the first time. Refer to a separate volume for a

description of remote control (GPIB or USB).

Section 1 Overview

Provides a general description of the equipment and a simple outline of the operating principles.

Section 2 Preparation

Required preparatory work before installing and operating the equipment. Be sure to read this

section.

Section 3 Basic operation

Panel functions, operating principles and basic operations are described. Read while operating

the equipment.

Section 4 Applications

Expanded operations are described.

Section 5 Other operations

Operations not covered in Sections 3 and 4 are described.

Section 6 Troubleshooting

Corrective measures when error messages or abnormalities occur.

Section 7 Maintenance

Inspection and performance tests are described.

Section 8 Specifications

Equipment specifications (functions and performance) are described.

!! WARNING

! CAUTION

ii WF1945B

Safety Precautions

Observe the following warnings and cautions in order to use this equipment safely. No responsibility or

warranty is assumed for damages arising from use in a manner contrary to these warnings and cautions.

This product is an insulation standard class I device (with a protective conductor terminal) as defined by the

IEC standards.

● Observe text instructions

This manual has been compiled in order to enable safe operation and use of this equipment. Be sure to read

this manual before using the equipment.

Items designated by Warning advise of serious physical hazards. Be sure to observe these carefully.

●Be sure to connect ground

Since the unit includes a built-in line filter, there is risk of shock if used without grounding.

To prevent electric shock, be sure to properly connect the device to the electric ground which ground

resistance is less than 100 Ω.

●Confirm power source voltage

Before connecting this equipment, check that the proper voltage is being supplied to the power outlet.

Refer to the Grounding and Power Supply section of this manual.

● Use only the properly rated fuse

Improperly rated fuses present a fire hazard and other risks. Refer to the Grounding and Power Supply

section of this manual and confirm the fuse rating.

Be sure to disconnect the equipment from the power source before replacing the fuse.

●Smoke, odor, noise

In event smoke, peculiar odor or noise is emitted, immediately disconnect the power source and avoid further

operation. Contact service.

●Flammable gas

Do not use this equipment in the presence of flammable gas. There is danger of fire and explosion.

● Do not remove covers

This equipment contains dangerously high voltages. Do not remove external covers.

Refer all internal inspection and service to a qualified service technician who fully understands the hazards.

Safety Precautions

WF1945B iii

!! WARNING

● Do not modify

Do not use parts other than specified by the manufacturer and by no means attempt to modify the equipment.

There is risk of personnel hazard and damage to the equipment. The manufacturer reserves the option of

refusing service in such cases.

●Safety related symbols and indications

Following are general definitions of the symbols and indications used in the text and on the product.

! Advises of possible hazard to the user, as well as the need to consult this manual when

using an operation or function.

Appears in the text and on the product to advise risk of fatal or otherwise serious

physical injury.

Appears in the text and on the product to advise risk of damage to the product.

Ground indication:

Indicates connector housing and signal ground is connected to a chassis ground.

Indicates power switch on state.

Indicates power switch off state.

! CAUTION

WF1945B Contents 1

Contents

zForeword ················································································································································i

zSafety Precautions ··································································································································ii

zSection 1 Overview ·····························································································································1-1

1.1 Features ··························································································································1-2

1.2 Operating principles········································································································1-3

Block diagram········································································································· 1-3

1.3 Function outline·············································································································· 1-4

Function tree ···········································································································1-4

zSection 2 Preparation··························································································································· 2-1

2.1 Check before using ········································································································· 2-2

Safety check············································································································2-2

Unpacking and repacking························································································2-2

2.2 Power source and grounding··························································································· 2-4

Grounding···············································································································2-4

Line filter ················································································································2-4

Power source···········································································································2-4

Power supply fuse ··································································································· 2-6

2.3 Installation ······················································································································2-7

Cautions··················································································································2-7

Installation conditions·····························································································2-7

Panel and case cleaning···························································································2-7

2.4 Conformable standards ···································································································2-8

2.5 Calibration ······················································································································2-9

zSection 3 Basic Operation ···················································································································3-1

3.1 Panel description·············································································································3-2

Front panel··············································································································3-3

Rear panel···············································································································3-4

3.2 Input and output connectors····························································································3-5

Waveform output (FUNCTION OUT) ····································································3-5

Sync signal output (SYNC OUT)············································································3-6

Trigger/sweep input (TRIG/SWEEP IN)·································································3-9

Sweep stop/restart input (SWEEP PAUSE IN) ·······················································3-10

Sweep X-drive output (SWEEP X-DRIVE OUT) ···················································3-10

Contents

Contents 2 WF1945B

Sweep marker output (SWEEP Z-MARKER OUT)················································3-11

External add input (EXT ADD IN) ·········································································3-11

External AM input (EXT AM IN)···········································································3-12

Synchronous operation input and output (φ-SYNC IN, OUT)·································3-12

Digital output (DIGITAL OUT)··············································································3-14

3.3 Basic operation ··············································································································· 3-16

Setting initialize(PRESET) ·····················································································3-16

Oscillation mode selection ······················································································3-19

Waveform selection ································································································3-20

Frequency setting····································································································3-23

Amplitude setting····································································································3-24

DC offset setting ·····································································································3-25

Phase setting ···········································································································3-26

Output on/off ··········································································································3-27

Operation tree ·········································································································3-28

zSection 4 Applications························································································································· 4-1

4.1 Burst oscillation ·············································································································· 4-2

Burst oscillation (Type: Burst) ················································································4-2

Burst oscillation (Type: Trigger)·············································································4-5

Burst oscillation (Type: Gate) ················································································· 4-9

Burst oscillation (Type: Triggered Gate)·································································4-13

4.2 Sweep ·····························································································································4-16

Sweep (Mode: Single)····························································································· 4-16

Sweep (Mode: Continuous)·····················································································4-22

Sweep (Mode: Gated) ·····························································································4-27

CENTER, SPAN, MARKER, MKR →CTR························································4-34

Summary of the sweep setting items ·······································································4-35

Sweep (modulation) steps and step width································································4-36

Sweep value and Z-MARKER/SYNC/X-DRIVE outputs ·······································4-38

4.3 Modulation ·····················································································································4-40

Frequency modulation (FM) ···················································································4-40

Amplitude modulation (AM)···················································································4-43

DC offset modulation (OFSM)················································································4-46

Phase modulation (PM)··························································································· 4-49

Pulse width modulation (PWM)··············································································4-52

4.4 Arbitrary Waveform········································································································4-55

Arbitrary waveform (ARB) ·····················································································4-55

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