Hioki CT6710 Manuel utilisateur
EN
EN
CT6711
CURRENT PROBE
CT6710
Instruction Manual
Feb. 2019 Edition 1
CT6710A961-00 19-02H
CT6711
CURRENT PROBE
CT6710
Instruction Manual
Feb. 2019 Edition 1
CT6710A961-00 19-02H
Measurement Procedure
Be sure to familiarize yourself with the “Usage Notes”
section (p. 8), each instruction of use, and safety notes
presented at the beginning of each instruction of use.
Inspecting the Device Before Use (p. 26)
Preparing for Measurement (p. 28)
Provide power to the device.
Connect the termination unit to the host waveform
measuring instrument.
Execute demagnetization and automatic zero-
adjustment.
Measuring Currents (p. 40)
Clamp the sensor around a conductor to be
measured.
Measure a current.
Finishing Measurement (p. 64)
CT6710A961-00
i
Contents
Introduction...........................................................................1
Notations ..............................................................................2
Conrming Package Contents..............................................5
Safety Notes.........................................................................7
Usage Notes.........................................................................8
1 Overview 13
1.1 Product Overview............................................13
1.2 Product Features.............................................14
1.3 Name and Function of Each Part ....................16
Termination unit ........................................................ 16
Junction box (keys, LEDs) ........................................18
Sensor ......................................................................20
1.4 Specications of Lighting up / Blinking
LEDs ...............................................................22
2 Current Measurement 25
2.1 Inspecting the Device Before Use...................26
2.2 Preparing for Measurement ............................28
Providing power to the device................................... 29
Executing demagnetization and automatic zero-
adjustment ................................................................33
2.3 Measuring Currents.........................................40
How to measure a current ........................................49
To measure a low current .........................................57
To measure a current accurately ..............................59
When the device has entered protection mode ........61
2.4 Finishing Measurement...................................64
4
3
2
1
Index
ii
Contents
3 Specications 67
3.1 General Specications ....................................67
3.2 Specications of Input, Output, and
Measurement ..................................................69
Basic specications ..................................................69
Specications of accuracy ........................................71
3.3 Specications of Functionality.........................73
3.4 Typical Characteristics ....................................75
Frequency characteristics......................................... 75
Frequency derating curve .........................................76
Input impedance .......................................................78
Consumption current ................................................ 79
Inuence of common-mode voltage.......................... 80
4 Maintenance and Service 81
4.1 Troubleshooting...............................................82
Before sending back your device for repair ..............83
4.2 Errors ..............................................................86
Types of errors..........................................................87
4.3 Cleaning ..........................................................94
4.4 Disposal ..........................................................95
Index 97
Warranty
1
Introduction
Introduction
Thank you for choosing the Hioki CT6710, CT6711 Current
Probe. Preserve this manual carefully and keep it handy to
make full use of this device for a long time.
Each model offers a different frequency band listed below:
Model CT6710: DC to 50 MHz
Model CT6711: DC to 120 MHz
Following manuals are provided along with these models.
Refer to manuals relevant to your purpose.
• Current Sensor Operating Precautions
Information on the device for safe operation
• Instruction Manual (this document)
Basic instructions and specications of the device
Also read the separate document “Current Sensor Operating
Precautions” carefully before using this device.
Target audience
This manual has been written for use by individuals who use
the product in question or who teach others to do so.
It is assumed that the reader possesses basic electrical
knowledge (equivalent to that of someone who graduated
from the electrical program at a technical high school).
2
Notations
Notations
Safety notations
In this manual, the risk seriousness and the hazard levels
are classied as follows.
DANGER
Indicates an imminently hazardous situation
that will result in death or serious injury to
the operator.
WARNING
Indicates a potentially hazardous situation
that may result in death or serious injury to
the operator.
CAUTION
Indicates a potentially hazardous situation
that may result in minor or moderate injury
to the operator or damage to the device or
malfunction.
IMPORTANT
Indicates information related to the
operation of the device or maintenance
tasks with which operators must be fully
familiar.
NOTE
Indicates advisory items related to
performance or correct operation of the
device.
Indicates a high voltage hazard.
If a particular safety check is not performed
or the device is mishandled, the operator
can suffer from a hazardous situation such
as an electric shock, burn, or even fatal
injury.
3
Notations
Indicates prohibited actions.
Indicates an action that must be performed.
Symbols shown on the device
Indicates cautions and hazards. When this symbol is
displayed on the device, refer to the “Usage Notes”
section (p. 8) and warning messages presented at
the beginning of each instruction of use in the Instruction
Manual, and included “Current Sensor Operating
Precautions” for more information.
Indicates that only insulated conductors appropriate to
the voltage of the circuit under test can be measured.
Symbols for various standards
Indicates the Waste Electrical and Electronic Equipment
Directive (WEEE Directive) in EU member states.
Indicates that the product conforms to regulations set
out by the EU Directive.
4
Notations
Others
*Additional information is presented below.
Bold Keys of the device are indicated in boldface.
Accuracy
We dene measurement tolerances in terms of rdg. (reading)
with the following meanings:
rdg.
(reading or displayed value)
The value currently being measured and indicated
on a measuring instrument.
Ce manuel convient aux modèles suivants
1
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