Hioki CM7290 Manuale utente

CM7290

CM7291 Instruction Manual

DISPLAY UNIT

Oct. 2018 Revised edition 2

CM7290A961-02 18-10H

Contents

Introduction........................................................................................1

Verifying Package Contents .............................................................1

Measurement Flowchart ...................................................................3

When performing standalone measurement.............................. 3

When measuring while connected to another device ................4

Safety Information.............................................................................6

Operating Precautions......................................................................8

1 Overview 11

1.1 Overview and Features................................................. 11

1.2 Parts and Functions .....................................................12

Display .....................................................................................13

Warning and battery power displays ........................................14

1.3 Tables of Key Operations.............................................15

Measuring ................................................................................16

Display/output/communication .................................................17

System operation .....................................................................18

Maintenance operation.............................................................19

Handy functions .......................................................................20

Key congurations....................................................................22

2 Pre-measurement Preparation 25

2.1 Installing the Z5004 Magnetic Strap............................25

2.2 Connecting the Sensor.................................................26

2.3 Supplying Power...........................................................27

Installing/replacing the batteries...............................................27

Connecting the AC adapter (optional)......................................28

Connecting to an external DC power supply............................ 29

2.4 Turning the Power On/Off ............................................30

When using battery power .......................................................30

When using the AC adapter or an external DC power supply:. 30

2.5 Connecting to an External Device...............................31

3 Measurement and Output 33

3.1 Inspection Prior to Use.................................................33

3.2 Taking Measurements ..................................................34

CM7290A961-02

Appx.

Contents

Types of output in the different measurement modes.............. 35

Setting measurement range.....................................................36

3.3 Changing the Display/output update time (rate) (to

Faster or Slower)...........................................................37

3.4 Examples of Measurement Waveforms ......................38

3.5 Bluetooth® Communications (only for CM7291).........39

Installing the application software GENNECT Cross ...............39

Pairing the app with the CM7291.............................................40

Making measurements with the Bluetooth

function ................40

4 Specications 41

4.1 GeneralSpecications .................................................41

4.2 InputandOutputSpecications,and

MeasurementSpecications .......................................43

4.3 FunctionalSpecications ............................................49

4.4 ConnectionTerminalSpecications ...........................53

4.5 ExternalInterfaceSpecications(onlyforCM7291) .53

5 Maintenance and Service 55

5.1 Troubleshooting............................................................56

5.2 Error Displays ...............................................................60

Appendix Appx.1

Appx.1 RangeStructure,Outputrate,andPower

Consumption Category with a Sensor

Connected ......................................................Appx.1

Appx. 2 Calculating Accuracy When Used with a

Sensor ............................................................Appx.2

Appx. 3 Combined Accuracies (Representative

values) ............................................................Appx.3

Appx. 4 Measurement Response Waveforms ......... Appx.11

Introduction

Thank you for purchasing the Hioki CM7290/CM7291 Display Unit. To obtain

maximum performance from the unit, please read this manual rst, and keep it handy

for future reference.

Verifying Package Contents

When you receive the unit, inspect it carefully to ensure that no damage occurred

during shipping. Pay particular attention to the accessories, panel switches,

and connectors. If damage is evident, or if it fails to operate according to the

specications, contact your authorized Hioki distributor or reseller.

Conrm that these contents are provided.

CM7290 or CM7291 Instruction manual

For the instruction manual in other languages,

see the Hioki website.

LR6 alkaline battery (AA) × 2

Protector (pre-installed)

Precautions Concerning Use of Equipment

that Emits Radio Waves (only for CM7291)

Appx. Ind.

Verifying Package Contents

Options

• The following options are available for this unit. Contact your authorized Hioki

distributor or reseller when ordering.

•Use an optional sensor equipped with a Hioki PL14 output connector.

9445-02 AC Adapter

L9094 Output Cord (for banana terminal, 1.5 m)

L9095 Output Cord (for BNC terminal, 1.5 m)

L9096 Output Cord (for lead terminal, 1.5 m)

C0220 Carrying Case (for sensor and display unit)

C0221 Carrying Case (for 30 m extension cable, sensor and display unit)

L0220-01 Extension Cable (2 m)

L0220-02 Extension Cable (5 m)

L0220-03 Extension Cable (10 m)

L0220-04 Extension Cable (20 m)

L0220-05 Extension Cable (30 m)

L0220-06 Extension Cable (50 m)

L0220-07 Extension Cable (100 m)

Z5004 Magnetic Strap

Measurement Flowchart

When performing standalone measurement

Installation and connection

Inspect prior to use (p. 33).

Connect the sensor to the unit (p. 26). You will need:

A sensor equipped with a Hioki PL14

connector (optional)

Connect the unit to the power supply (p. 27).

You will need:

LR6 alkaline battery (AA) ×2

or an AC adapter

See “Options” (p. 2).

Turn the power on (p. 30).

If being driven by an AC adapter, the unit is automatically powered on.

Measuring

Execute zero adjustment (p. 16).

「シールド線は挟まない」の説明を

記載する/しないは製品ごと技術に確認する

　↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓

OK NO NO

OK NO NO NO

「シールド線は挟まない」の説明を

記載する/しないは製品ごと技術に確認する

　↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓↓

NO NONO

OK NO NO NO

Zero

adjustment

Measure-

ment modes

Zero adjustment is unavailable for

sensors dedicated for AC measurement.

Connect the sensor to the conductor to

be measured (p. 34).

Select the measurement mode (p. 16).

Check the measured values.

Ending

Disconnect the sensor from the

conductor measured, and turn off the

unit’s power supply.

Appx. Ind.

Measurement Flowchart

When measuring while connected to another device

Installation and connection

Inspect prior to use (p. 33).

Connect the sensor to the unit (p. 26). You will need:

A sensor equipped with a Hioki PL14

connector (optional)

Connect the unit to the power supply

(p. 27).

Turn the power on (p. 30).

If being driven by an AC adapter, the unit is automatically powered on.

Connect the output of the unit to an

external device (p. 31).

You will need:

•Output cord

•Extension cable (if the sensor’s output

cable is not long enough)

See “Options” (p. 2).

Measuring

Execute zero adjustment (p. 16).

Zero adjustment is unavailable for

sensors dedicated for AC measurement.

Connect the unit to the conductor to be

measured (p. 34).

Set (p. 15) Required settings:

1. Measurement modes (p. 16)

1. Output mode (p. 17)

2. Range ((p. 16), p. 35p, p. Appx.1)

Observe and record waveforms with the

external device.

Ending

Turn the power off to complete measurement.

Measurement Flowchart

Example of connection to devices installed in a measuring system

With the settings below, the unit will start up in the previously selected output mode

and begin generating output whenever the power is supplied through the external

power supply jack. This is the recommended way if the unit is connected to devices

installed in a measuring system.

See “2.5 Connecting to an External Device” (p. 31).

Display unit

- 4

- 3

Conductor to

be measured

Sensor

Connectable connector

JEITA RC5320A

Classication 3

(EIAJ RC5320A TYPE 3)

(Grip portion external

diameter not more than

φ10 mm)

Measurement

circuitry

Measuring system

Power

supply

Output

- 2

Connections

Connect the devices as follows:

1. Sensor – to the conductor to be

measured

2. Display unit − to the sensor

3. Display unit – to the output destination

4. Display unit – to the (standalone DC

isolated) power supply

Setting

Congure the settings in the following

order:

1. Set the appropriate measurement

mode, output mode, or range

2. Set "Enable" or "Disable"

for zero adjustment at power-up

3. Save settings

(save the measurement mode settings

at power-up)

4. Set the keylock to "Enable"

(to avoid operational mistakes)

Measures against power outage

•If batteries have been installed in the unit, it will switch to battery power if power

from the AC adapter or external power supply (connected via the external power

supply jack) is interrupted and then continue to generate output as long as the

battery lasts. Once the external power supply is restored, the unit will switch back

to that power source.

•The displayed value or output may be affected by switching noise when the unit

switches from battery to AC adapter or vice-versa.

Appx. Ind.

Safety Information

This unit is designed to conform to IEC 61010 Safety Standards, and has been

thoroughly tested for safety prior to shipment. However, using the unit in a way not

described in this manual may negate the provided safety features.

Before using the unit, be certain to carefully read the following safety notes.

WARNING

•Electricity poses risks of electric shock and arc discharge due to

short circuits. Individuals using an electrical measuring instrument

for the rst time should be supervised by a technician who has

experience in electrical measurement.

•Protective gear

This unit measures live lines. To prevent electric shock accidents,

wear protective insulation in accordance with laws and regulations.

CAUTION

Mishandling during use could cause damage to the unit. Be certain that you

understand the instructions and precautions in the manual before use.

Notation

In this manual, the risk seriousness and the hazard levels are classied as follows.

DANGER

Indicates an imminent hazard that could lead to serious injury or death.

WARNING

Indicates a hazard that could lead to serious injury or death.

CAUTION

Indicates a hazard that could lead to minor injury or that could be expected

to result in equipment or other damage.

IMPORTANT Indicates information related to the operation of the unit or maintenance

tasks with which the operators must be fully familiar.

Indicates a strong magnetic-eld hazard.

The effects of the magnetic force can cause abnormal operation of heart

pacemakers and/or medical electronics.

Indicates the prohibited action.

Indicates the action which must be performed.

*Additional information is presented below.

Bold character Control operation keys are enclosed in blackets ([ ]).

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