KYORITSU 2062 User manual

Instruction Manual
CLAMP POWER METER
KEW 2062/2062BT

Contents KEW 2062/2062BT
- 1 - KEW 2062/2062BT
Unpacking ................................................................................................................... 3
Safety precautions....................................................................................................... 3
Chapter 1 Functional overview .............................................................................. 7
Chapter 2 KEW 2062/2062BT features................................................................ 8
Chapter 3 Basic operation ..................................................................................... 9
3.1 Function switch................................................................................................ 9
3.2 Buttons and switches....................................................................................... 9
3.3 Symbols displayed in LCD............................................................................. 11
3.4 Unit of measured value.................................................................................. 11
Chapter 4 Getting started..................................................................................... 12
4.1 Turning on KEW 2062/2062BT...................................................................... 12
4.2 Battery level check ........................................................................................ 12
LCD indication/ Battery level indicator .............................................................. 13
How to install batteries:..................................................................................... 13
4.3 Test leads connection (to KEW 2062/2062BT) .............................................. 14
4.4 Connection to the measured object ............................................................... 14
Chapter 5 Settings ............................................................................................... 16
Item selection (Switch the displayed items) ...................................................... 16
Wiring systems ................................................................................................. 17
VT/ CT ratio ...................................................................................................... 17
Measurement using VT/ CT ratio...................................................................... 18
Buzzer ON/ OFF............................................................................................... 19
Backlight ON/ OFF ........................................................................................... 19
Frequency of nominal voltage........................................................................... 20
System reset .................................................................................................... 20
Chapter 6 Display items by measurement function.............................................. 21
6.1 RMS/ Frequency measurement..................................................................... 21
RMS current, frequency.................................................................................... 21
RMS voltage, frequency ................................................................................... 22
6.2 Single/ Three-phase (balance) Power measurement .................................... 23
Connection diagram for Single-phase 2-wire (1P2W)....................................... 23
Connection diagram for Single-phase 3-wire (1P3W)....................................... 23
Connection diagram for balance Three-phase 3-wire (3P3W).......................... 24
Connection diagram for balance Three -phase 4-wire (3P4W)......................... 24
Switching display .............................................................................................. 25
6.3 Three-phase (unbalance) power measurement............................................. 26
Three-phase 3-wire (3P3W) unbalance............................................................ 26
Three-phase 4-wire (3P4W) unbalance............................................................ 29
6.4 Harmonics measurement .............................................................................. 32
Current harmonics distortion factor, content rate, RMS value........................... 32
Voltage harmonics distortion factor, content rate, RMS value........................... 33
Harmonics distortion factor THD-R/ THD-F ...................................................... 35
6.5 Phase detection............................................................................................. 36
KEW 2062/2062BT Contents
KEW 2062/2062BT - 2 -
Chapter 7 Other functions ...................................................................................... 37
[Data hold function]........................................................................................... 37
[Auto-backlight-off]............................................................................................ 37
[Auto-power-off] ................................................................................................ 37
[Auto-ranging – current].................................................................................... 37
Chapter 8 Bluetooth communication....................................................................... 38
8.1 KEW Power*(asterisk) features ..................................................................... 39
Chapter 9 Specifications......................................................................................... 40
9.1 Safety specifications...................................................................................... 40
9.2. General specifications .................................................................................. 40
9.3 Measurement specifications .......................................................................... 41
AC current function ..................................................................................... 41
AC Voltage function .................................................................................... 42
Power function ........................................................................................... 43
Voltage current phase difference (θ) [deg] (at Single-phase 2-wire
measurement only)........................................................................................... 45
Harmonics function ................................................................................... 46
Phase detection function ........................................................................... 48

Contents KEW 2062/2062BT
- 1 - KEW 2062/2062BT
Unpacking ................................................................................................................... 3
Safety precautions....................................................................................................... 3
Chapter 1 Functional overview .............................................................................. 7
Chapter 2 KEW 2062/2062BT features................................................................ 8
Chapter 3 Basic operation ..................................................................................... 9
3.1 Function switch................................................................................................ 9
3.2 Buttons and switches....................................................................................... 9
3.3 Symbols displayed in LCD............................................................................. 11
3.4 Unit of measured value.................................................................................. 11
Chapter 4 Getting started..................................................................................... 12
4.1 Turning on KEW 2062/2062BT...................................................................... 12
4.2 Battery level check ........................................................................................ 12
LCD indication/ Battery level indicator .............................................................. 13
How to install batteries:..................................................................................... 13
4.3 Test leads connection (to KEW 2062/2062BT) .............................................. 14
4.4 Connection to the measured object ............................................................... 14
Chapter 5 Settings ............................................................................................... 16
Item selection (Switch the displayed items) ...................................................... 16
Wiring systems ................................................................................................. 17
VT/ CT ratio ...................................................................................................... 17
Measurement using VT/ CT ratio...................................................................... 18
Buzzer ON/ OFF............................................................................................... 19
Backlight ON/ OFF ........................................................................................... 19
Frequency of nominal voltage........................................................................... 20
System reset .................................................................................................... 20
Chapter 6 Display items by measurement function.............................................. 21
6.1 RMS/ Frequency measurement..................................................................... 21
RMS current, frequency.................................................................................... 21
RMS voltage, frequency ................................................................................... 22
6.2 Single/ Three-phase (balance) Power measurement .................................... 23
Connection diagram for Single-phase 2-wire (1P2W)....................................... 23
Connection diagram for Single-phase 3-wire (1P3W)....................................... 23
Connection diagram for balance Three-phase 3-wire (3P3W).......................... 24
Connection diagram for balance Three -phase 4-wire (3P4W)......................... 24
Switching display .............................................................................................. 25
6.3 Three-phase (unbalance) power measurement............................................. 26
Three-phase 3-wire (3P3W) unbalance............................................................ 26
Three-phase 4-wire (3P4W) unbalance............................................................ 29
6.4 Harmonics measurement .............................................................................. 32
Current harmonics distortion factor, content rate, RMS value........................... 32
Voltage harmonics distortion factor, content rate, RMS value........................... 33
Harmonics distortion factor THD-R/ THD-F ...................................................... 35
6.5 Phase detection............................................................................................. 36
KEW 2062/2062BT Contents
KEW 2062/2062BT - 2 -
Chapter 7 Other functions ...................................................................................... 37
[Data hold function]........................................................................................... 37
[Auto-backlight-off]............................................................................................ 37
[Auto-power-off] ................................................................................................ 37
[Auto-ranging – current].................................................................................... 37
Chapter 8 Bluetooth communication....................................................................... 38
8.1 KEW Power*(asterisk) features ..................................................................... 39
Chapter 9 Specifications......................................................................................... 40
9.1 Safety specifications...................................................................................... 40
9.2. General specifications .................................................................................. 40
9.3 Measurement specifications .......................................................................... 41
AC current function ..................................................................................... 41
AC Voltage function .................................................................................... 42
Power function ........................................................................................... 43
Voltage current phase difference (θ) [deg] (at Single-phase 2-wire
measurement only)........................................................................................... 45
Harmonics function ................................................................................... 46
Phase detection function ........................................................................... 48

Unpacking KEW 2062/2062BT
- 3 - KEW 2062/2062BT
Unpacking
We thank you for purchasing our clamp power meter KEW 2062 / KEW2062BT.
Please check that the following accessories are packed with the instrument.
[Basic package]
1
Clamp power meter
KEW 2062 / KEW 2062BT : 1 pce.
2 Test leads
MODEL7290: 1 set
* Red, black, and yellow: 1 pce. each with alligator clips
3
Batteries
Alkaline size AA battery (LR6) x 2 pcs.
4
Instruction manual
: 1 pce.
5
Soft case
MODEL9198 : 1 pce.
●In case any of the items listed above are found to be damaged or missing or if the printing
is unclear, please contact your local KYORITSU distributor.
Safety precautions
This instrument has been designed, manufactured and tested according to IEC 61010:
Safety requirements for Electronic Measuring apparatus, and delivered in the best condition
after passing quality control tests.
This instruction manual contains warnings and safety procedures which have to be
observed by the user to ensure safe operation of the instrument and to maintain it in safe
condition. Therefore, read through these operating instructions before starting to use the
instrument.
WARNING
● Read through and understand the instructions contained in this manual before using the
instrument.
● Keep the manual at hand to enable quick reference whenever necessary.
● The instrument is to be used only in its intended applications.
● Understand and follow all the safety instructions contained in the manual.
It is essential that the above instructions are adhered to. Failure to follow the above instructions
may cause injury, instrument damage and/or damage to equipment under test. Kyoritsu assumes
no responsibility for damage and injury caused by misuse or not following the instructions in the
manual.
The symbol indicated on the instrument, means that the user must refer to the related
parts in the manual for safe operation of the instrument. It is essential to read the
instructions wherever the symbol appears in the manual.
DANGER
: is reserved for conditions and actions that are likely to cause serious or fatal
injury.
WARNING
: is reserved for conditions and actions that can cause serious or fatal injury.
CAUTION
: is reserved for conditions and actions that can cause injury or instrument
damage.
KEW 2062/2062BT Safety precautions
KEW 2062/2062BT - 4 -
Meaning of symbols on the instrument:
User must refer to the explanations in the instruction manual.
Instrument with double or reinforced insulation
This instrument can clamp a bare conductor where the voltage
to be measured is lower than the circuit – voltage against earth
values specified by the marked measurement category.
AC (Alternating current)
(Functional) Earth terminal
This instrument satisfies the marking requirement defined in the
WEEE Directive (2002/96/EC). This symbol indicates separate
collection for electrical and electronic equipment.
Measurement Category
To ensure safe operation of measuring instruments, IEC 61010 establishes safety standards
for various electrical environments, categorized as O to CAT IV, and called measurement
categories. Higher-numbered categories correspond to electrical environments with greater
momentary energy, so a measuring instrument designed for CAT III environments can
endure greater momentary energy than one designed for CAT II.
O : Circuits which are not directly connected to the mains power supply.
CAT II : Electrical circuits of equipment connected to an AC electrical outlet by a power cord.
CAT III : Primary electrical circuits of the equipment connected directly to the distribution panel,
and feeders from the distribution panel to outlets.
CAT IV : The circuit from the service drop to the service entrance, and to the power meter and
primary overcurrent protection device (distribution panel).
～

Unpacking KEW 2062/2062BT
- 3 - KEW 2062/2062BT
Unpacking
We thank you for purchasing our clamp power meter KEW 2062 / KEW2062BT.
Please check that the following accessories are packed with the instrument.
[Basic package]
1
Clamp power meter
KEW 2062 / KEW 2062BT : 1 pce.
2 Test leads
MODEL7290: 1 set
* Red, black, and yellow: 1 pce. each with alligator clips
3
Batteries
Alkaline size AA battery (LR6) x 2 pcs.
4
Instruction manual
: 1 pce.
5
Soft case
MODEL9198 : 1 pce.
●In case any of the items listed above are found to be damaged or missing or if the printing
is unclear, please contact your local KYORITSU distributor.
Safety precautions
This instrument has been designed, manufactured and tested according to IEC 61010:
Safety requirements for Electronic Measuring apparatus, and delivered in the best condition
after passing quality control tests.
This instruction manual contains warnings and safety procedures which have to be
observed by the user to ensure safe operation of the instrument and to maintain it in safe
condition. Therefore, read through these operating instructions before starting to use the
instrument.
WARNING
● Read through and understand the instructions contained in this manual before using the
instrument.
● Keep the manual at hand to enable quick reference whenever necessary.
● The instrument is to be used only in its intended applications.
● Understand and follow all the safety instructions contained in the manual.
It is essential that the above instructions are adhered to. Failure to follow the above instructions
may cause injury, instrument damage and/or damage to equipment under test. Kyoritsu assumes
no responsibility for damage and injury caused by misuse or not following the instructions in the
manual.
The symbol indicated on the instrument, means that the user must refer to the related
parts in the manual for safe operation of the instrument. It is essential to read the
instructions wherever the symbol appears in the manual.
DANGER
: is reserved for conditions and actions that are likely to cause serious or fatal
injury.
WARNING
: is reserved for conditions and actions that can cause serious or fatal injury.
CAUTION
: is reserved for conditions and actions that can cause injury or instrument
damage.
KEW 2062/2062BT Safety precautions
KEW 2062/2062BT - 4 -
Meaning of symbols on the instrument:
User must refer to the explanations in the instruction manual.
Instrument with double or reinforced insulation
This instrument can clamp a bare conductor where the voltage
to be measured is lower than the circuit – voltage against earth
values specified by the marked measurement category.
AC (Alternating current)
(Functional) Earth terminal
This instrument satisfies the marking requirement defined in the
WEEE Directive (2002/96/EC). This symbol indicates separate
collection for electrical and electronic equipment.
Measurement Category
To ensure safe operation of measuring instruments, IEC 61010 establishes safety standards
for various electrical environments, categorized as O to CAT IV, and called measurement
categories. Higher-numbered categories correspond to electrical environments with greater
momentary energy, so a measuring instrument designed for CAT III environments can
endure greater momentary energy than one designed for CAT II.
O : Circuits which are not directly connected to the mains power supply.
CAT II : Electrical circuits of equipment connected to an AC electrical outlet by a power cord.
CAT III : Primary electrical circuits of the equipment connected directly to the distribution panel,
and feeders from the distribution panel to outlets.
CAT IV : The circuit from the service drop to the service entrance, and to the power meter and
primary overcurrent protection device (distribution panel).
～

Safety precautions KEW 2062/2062BT
- 5 - KEW 2062/2062BT
DANGER
● The instrument is to be used only in its intended applications or conditions. Otherwise,
safety functions equipped with the instrument will not work, and instrument damage or
serious personal injury may occur. Verify proper operation on a known source before taking
action as a result of the indication of the instrument.
● Wear protective insulated gears if electrical shock or other danger is possible.
● This instrument is rated to 300 V AC for CAT IV, 600 V AC for CAT III, and 1000 V AC for CAT
II. With attention to the measurement category to which the object under test belongs, do not
make measurements if voltage against earth in the circuit under test exceeds these values.
● Do not attempt to make measurement in the presence of flammable gasses. Otherwise,
the use of the instrument may cause sparking, which can lead to an explosion.
● Never attempt to use the instrument if its surface or your hand is wet.
- Measurement -
● Do not exceed the maximum allowable input of any measuring range.
● Never open the battery compartment cover during a measurement.
- Clamp sensor -
● Confirm that the measured current rating of the circuit under test and the instrument;
in addition, don’t exceed the rated voltage against earth.
● Keep your fingers behind the barrier during a measurement.
Barrier: provides protection against electrical shock and ensuring the minimum required
clearance and creepage distances.
● Connect to the secondary side of a circuit breaker since a current capacity at the
primary side is large and dangerous.
● Do not touch two lines under test when opening the jaws.
- Test leads -
● Use only the ones supplied with the instrument.
● When the instrument and the test lead are combined and used together, whichever lower
category either of them belongs to will be applied. Confirm that the measured voltage rating
of the test lead is not exceeded.
● Connect the cables that are required for the desired measurement only.
● Connect the test leads to the instrument first, and only then connect them to the circuit
under test.
● Keep your fingers behind the barrier during a measurement.
Barrier: provides protection against electrical shock and ensuring the minimum required
clearance and creepage distances.
● Never disconnect the test leads from the voltage input terminals of the instrument during
a measurement (while the instrument is energized).
● Do not touch two lines under test with the metal tips of the test leads.
● Never touch the metal tips of the test leads.
- Battery -
● Do not try to replace the batteries during a measurement.
KEW 2062/2062BT Safety precautions
KEW 2062/2062BT - 6 -
WARNING
● Never attempt to make any measurement if any abnormal conditions, such as a broken
cover or exposed metal parts are present on the Instrument, or test leads.
●Verify proper operation on a known source before use or taking action as a result of
indication of the instrument
● Do not install substitute parts or make any modification to the instrument. Return the
instrument to your local KYORITSU distributor for repair or re-calibration in case of
suspected faulty operation.
CAUTION
●Use of this instrument is limited to domestic, commercial and light industry applications.
Strong magnetic interference or strong magnetic fields, generated by large currents, may
cause malfunction of the instrument.
●Caution should be taken since conductors under test may be hot.
●Never apply currents or voltages exceeding the maximum allowable input to each range.
● Do not apply currents or voltages for the test leads or current sensors while the instrument
is off.
● Don’t use the instrument at dusty places or to be spattered.
● Don’t use the instrument under a strong electric storm or in the vicinity of energized object.
● Never give strong vibrations or drop shocks.
- Test leads -
● Connect the plug firmly to the corresponding terminal.
●Do not pull or twist the test leads with excessive force to prevent damage.
- Battery -
● Brand and type of the batteries should be harmonized.
- Treatment after use -
● Set the function switch to “OFF” position and remove all the cables from the instrument.
● Take out batteries if the instrument is to be stored and will not be in use for a long period.
● Never give strong vibrations or drop shocks when carrying the instrument.
● Do not expose the instrument to direct sunlight, high temperature, humidity or dew.
● Use a damp cloth with neutral detergent or water for cleaning the instrument. Do not use
abrasives or solvents.
● If the instrument is wet, dry and store it.
Carefully read and follow the instructions with DANGER, WARNING, CAUTION
symbols and NOTE described in each section.

Safety precautions KEW 2062/2062BT
- 5 - KEW 2062/2062BT
DANGER
● The instrument is to be used only in its intended applications or conditions. Otherwise,
safety functions equipped with the instrument will not work, and instrument damage or
serious personal injury may occur. Verify proper operation on a known source before taking
action as a result of the indication of the instrument.
● Wear protective insulated gears if electrical shock or other danger is possible.
● This instrument is rated to 300 V AC for CAT IV, 600 V AC for CAT III, and 1000 V AC for CAT
II. With attention to the measurement category to which the object under test belongs, do not
make measurements if voltage against earth in the circuit under test exceeds these values.
● Do not attempt to make measurement in the presence of flammable gasses. Otherwise,
the use of the instrument may cause sparking, which can lead to an explosion.
● Never attempt to use the instrument if its surface or your hand is wet.
- Measurement -
● Do not exceed the maximum allowable input of any measuring range.
● Never open the battery compartment cover during a measurement.
- Clamp sensor -
● Confirm that the measured current rating of the circuit under test and the instrument;
in addition, don’t exceed the rated voltage against earth.
● Keep your fingers behind the barrier during a measurement.
Barrier: provides protection against electrical shock and ensuring the minimum required
clearance and creepage distances.
● Connect to the secondary side of a circuit breaker since a current capacity at the
primary side is large and dangerous.
● Do not touch two lines under test when opening the jaws.
- Test leads -
● Use only the ones supplied with the instrument.
● When the instrument and the test lead are combined and used together, whichever lower
category either of them belongs to will be applied. Confirm that the measured voltage rating
of the test lead is not exceeded.
● Connect the cables that are required for the desired measurement only.
● Connect the test leads to the instrument first, and only then connect them to the circuit
under test.
● Keep your fingers behind the barrier during a measurement.
Barrier: provides protection against electrical shock and ensuring the minimum required
clearance and creepage distances.
● Never disconnect the test leads from the voltage input terminals of the instrument during
a measurement (while the instrument is energized).
● Do not touch two lines under test with the metal tips of the test leads.
● Never touch the metal tips of the test leads.
- Battery -
● Do not try to replace the batteries during a measurement.
KEW 2062/2062BT Safety precautions
KEW 2062/2062BT - 6 -
WARNING
● Never attempt to make any measurement if any abnormal conditions, such as a broken
cover or exposed metal parts are present on the Instrument, or test leads.
●Verify proper operation on a known source before use or taking action as a result of
indication of the instrument
● Do not install substitute parts or make any modification to the instrument. Return the
instrument to your local KYORITSU distributor for repair or re-calibration in case of
suspected faulty operation.
CAUTION
●Use of this instrument is limited to domestic, commercial and light industry applications.
Strong magnetic interference or strong magnetic fields, generated by large currents, may
cause malfunction of the instrument.
●Caution should be taken since conductors under test may be hot.
●Never apply currents or voltages exceeding the maximum allowable input to each range.
● Do not apply currents or voltages for the test leads or current sensors while the instrument
is off.
● Don’t use the instrument at dusty places or to be spattered.
● Don’t use the instrument under a strong electric storm or in the vicinity of energized object.
● Never give strong vibrations or drop shocks.
- Test leads -
● Connect the plug firmly to the corresponding terminal.
●Do not pull or twist the test leads with excessive force to prevent damage.
- Battery -
● Brand and type of the batteries should be harmonized.
- Treatment after use -
● Set the function switch to “OFF” position and remove all the cables from the instrument.
● Take out batteries if the instrument is to be stored and will not be in use for a long period.
● Never give strong vibrations or drop shocks when carrying the instrument.
● Do not expose the instrument to direct sunlight, high temperature, humidity or dew.
● Use a damp cloth with neutral detergent or water for cleaning the instrument. Do not use
abrasives or solvents.
● If the instrument is wet, dry and store it.
Carefully read and follow the instructions with DANGER, WARNING, CAUTION
symbols and NOTE described in each section.

Chapter 1 Functional overview KEW 2062/2062BT
- 7 - KEW 2062/2062BT
Chapter 1 Functional overview
KEW 2062 / 2062BT is an advanced clamp power meter that is able to analyze the
harmonics for power quality check and verify phase sequences of power sources in various
wiring systems: of course, it can perform voltage/ current (in RMS) and power
measurements.
KEW 2062BT has Bluetooth communication function to connect itself with Bluetooth devices,
like a tablet, for remote monitoring and data saving.
Safety Construction
Designed to meet the international safety standard IEC 61010-1 CAT IV 300 V/ CAT III 600
V/ CAT II 1000V.
Wiring configuration
KEW 2062 / 2062BT supports: Single-phase 2-wire (Single-phase 3-wire), Three-phase
3-wire (two-wattmeter method), and Three-phase 4-wire.
Large-diameter clamp sensor
The current clamp sensor is able to clamp onto a wire up to 55mm in diameter.
Measurement and calculation
KEW 2062 / 2062BT can measure and calculate voltage, current, active/ reactive/ apparent
power, power factor, voltage-current phase differences, and frequency. (TRMS display)
Harmonics measurement
It is possible to measure and show each voltage/ current harmonic from 1st to 30th (in
RMS.), content rate, and total distortion factor (THD-R/THD-F).
Phase detection
This function is to verify phase rotation and missing phases of power source.
Application
Measured results and waveform data can an be transferred to tablet devices or
smartphones using Bluetooth (KEW 2062BT only). Special application “KEW
Power*(asterisk)” is available for reviewing the measured data.
KEW 2062/2062BT Chapter 2 KEW 2062 / 2062BT features
KEW 2062/2062BT - 8 -
Chapter 2 KEW 2062 / 2062BT features
①Current sensor
②Trigger (to open/ close the jaws)
③Barrier
Provides protection against electrical shock and
ensuring the minimum required clearance and
creepage distances. Always keep your fingers behind
the barrier.
④Function switch
Turn and select the desired measurement function.
This switch also works as power switch: set it to
“OFF” to turn off the instrument.
⑤Data hold switch
Holds the displayed readings. The LCD shows “ ”
symbol while the result is being held in the display.
⑥Mode button*1, 2
Toggles the displayed results in the sequences:
MAX: maximum value -> MIN: minimum value ->
AVG: average value -> |PEAK|: crest factor
(absolute value).
⑦Backlight button [◄]*2
A long press turns on/ off the backlight.
⑦⑧ Item switching button [◄►]*
A short press toggles displayed items in sequences.
*1 Function ranges, related to current measurements, are
fixed while the LCD is showing MAX/ MIN/ AVG/ |PEAK|
(absolute value). The auto-ranging function is reactivated
when switching the display to instantaneous value.
*2Buttons ⑥to ⑧, ⑦excluded, work differently
depending on the selected measurement function. For
further detail, see clause 3.2 Buttons and switches, P. 9,
and explanations about each function.
⑨LCD
Field effect LCD with backlight
⑩AC voltage input terminal
Connect the plug ⑪of test lead (M-7290) to the corresponding terminal depending on the
wiring configuration to be tested.
⑪Plug
⑫Alligator clip
①
③
⑤
②
④
⑥
⑨
⑦⑧
⑫
⑪
⑩

Chapter 1 Functional overview KEW 2062/2062BT
- 7 - KEW 2062/2062BT
Chapter 1 Functional overview
KEW 2062 / 2062BT is an advanced clamp power meter that is able to analyze the
harmonics for power quality check and verify phase sequences of power sources in various
wiring systems: of course, it can perform voltage/ current (in RMS) and power
measurements.
KEW 2062BT has Bluetooth communication function to connect itself with Bluetooth devices,
like a tablet, for remote monitoring and data saving.
Safety Construction
Designed to meet the international safety standard IEC 61010-1 CAT IV 300 V/ CAT III 600
V/ CAT II 1000V.
Wiring configuration
KEW 2062 / 2062BT supports: Single-phase 2-wire (Single-phase 3-wire), Three-phase
3-wire (two-wattmeter method), and Three-phase 4-wire.
Large-diameter clamp sensor
The current clamp sensor is able to clamp onto a wire up to 55mm in diameter.
Measurement and calculation
KEW 2062 / 2062BT can measure and calculate voltage, current, active/ reactive/ apparent
power, power factor, voltage-current phase differences, and frequency. (TRMS display)
Harmonics measurement
It is possible to measure and show each voltage/ current harmonic from 1st to 30th (in
RMS.), content rate, and total distortion factor (THD-R/THD-F).
Phase detection
This function is to verify phase rotation and missing phases of power source.
Application
Measured results and waveform data can an be transferred to tablet devices or
smartphones using Bluetooth (KEW 2062BT only). Special application “KEW
Power*(asterisk)” is available for reviewing the measured data.
KEW 2062/2062BT Chapter 2 KEW 2062 / 2062BT features
KEW 2062/2062BT - 8 -
Chapter 2 KEW 2062 / 2062BT features
①Current sensor
②Trigger (to open/ close the jaws)
③Barrier
Provides protection against electrical shock and
ensuring the minimum required clearance and
creepage distances. Always keep your fingers behind
the barrier.
④Function switch
Turn and select the desired measurement function.
This switch also works as power switch: set it to
“OFF” to turn off the instrument.
⑤Data hold switch
Holds the displayed readings. The LCD shows “ ”
symbol while the result is being held in the display.
⑥Mode button*1, 2
Toggles the displayed results in the sequences:
MAX: maximum value -> MIN: minimum value ->
AVG: average value -> |PEAK|: crest factor
(absolute value).
⑦Backlight button [◄]*2
A long press turns on/ off the backlight.
⑦⑧ Item switching button [◄►]*
A short press toggles displayed items in sequences.
*1 Function ranges, related to current measurements, are
fixed while the LCD is showing MAX/ MIN/ AVG/ |PEAK|
(absolute value). The auto-ranging function is reactivated
when switching the display to instantaneous value.
*2Buttons ⑥to ⑧, ⑦excluded, work differently
depending on the selected measurement function. For
further detail, see clause 3.2 Buttons and switches, P. 9,
and explanations about each function.
⑨LCD
Field effect LCD with backlight
⑩AC voltage input terminal
Connect the plug ⑪of test lead (M-7290) to the corresponding terminal depending on the
wiring configuration to be tested.
⑪Plug
⑫Alligator clip
①
③
⑤
②
④
⑥
⑨
⑦⑧
⑫
⑪
⑩

Chapter 3 Basic operation KEW 2062/2062BT
- 9 - KEW 2062/2062BT
Chapter 3 Basic operation
3.1 Function switch
Function Description
SETUP
Settings
Changes and confirms the settings for wiring,
VT/ CT ratio,
buzzer on/ off, backlight on/ off, nominal frequency 50/ 60Hz. To
restore all
the settings to the default conditions, perform system
reset.
Phase
detection
Tests and shows
the phase rotation sequence, and missing
phase if there is any.
Harmonics
Shows voltage/ current (of the 1st fundamental waveform up to
30th harmonics) RMS
value, content rate, and distortion factor
[THD-R/THD-F].
WPower
Shows: active/ reactive/ apparent power, power factor,
voltage-current phase differences, and voltage/ current (RMS)
value.
～
V
AC voltage Shows AC voltage RMS value, peak value, and frequency.
～
A
AC current Shows AC current RMS value, peak value, and frequency.
3.2 Buttons and switches
Function
Buttons and
switches
Details
---
Data hold button
Hold down the Data hold button until the LCD shows “ ”
symbol: then the currently displayed value is held. While this
function is activated, readings don’t
change even the input
value varies. To exit from the hold mode, press the data hold
button again or switch the measurement functions: the “ ”
symbol disappears.
Backlight button
[◄] A long press turns on/ off the backlight.
SETUP
Item switching
button [◄►]
Toggles displayed items and changes the setting values.
Mode button
Selects setting items and confirms the entered values.
Harmonics
Item switching
button [◄►]
A short press toggles display: <-> THD-F <-> THD-R <->
1st fundamental wave to 30th harmonics.
[►]
A long press switches voltage and current RMS values.
Mode button
A short press toggles display: <-> Inst value <-> MAX <-> MIN
<-> AVG.
A long press resets measurements of MAX, MIN, and AVG
values and resume a measurement.
KEW 2062/2062BT 3.2 Buttons and switches
KEW 2062/2062BT - 10 -
Function
Buttons and
switches
Details
Power
1P2W
1P3W
Item switching
button [◄►]
A short press toggles display: <-> active power, power factor
<-> active power, voltage-current phase differences <->
active and apparent power <-
> active and reactive power
<-> current and voltage RMS.
Mode button
A short press toggles display: <-> Inst value <-> MAX <->
MIN <-> AVG.
A long press resets measurements of MAX, MIN, and AVG
values and resume a measurement.
Power
3P3W
3P4W
Balance
Item switching
button [◄►]
A short press toggles display: <-> active power, power factor
<-> active and apparent power <-
> active and reactive
power <-> current and voltage RMS.
Mode button
A short press toggles display: <-> Inst value <-> MAX <->
MIN <-> AVG. A long press resets measurements of MAX,
MIN, and AVG values and resume a measurement.
Power
3P3W
Unbalance
Item
switching
button
[►]
A short press during a measurement:
Switches the phase to be measured from R(L1) to T(L3).
[◄►]
A short press while displaying the measured result:
Toggles displays: <-> Three-phase active power <->
R(L1)-phase active power <-> T(L2)-phase active power.
Mode button
A short press during a measurement: Switches between
active power and voltage and current values (RMS).
A long press while displaying the measured result:
Clears the displayed values and resume a measurement.
Power
3P4W
Unbalance
Item switching
button [►]
A short press during a measurement:
Switches the phase to be measured: R(L1) -> S(L2) -> T(L3).
A short press while displaying the measured result:
Toggles displays: <-> active power, power factor <-> active
and apparent power <-> active and reactive power.
Mode button
A short press during a measurement:
Switches between
active power and voltage and current values (RMS).
A long press while displaying the measured result:
Clears the displayed values and resume a measurement.
～V
～A Mode button
A short press toggles display: <-> Inst value <-> MAX <->
MIN <-> AVG <-> |PEAK| (peak value*).
A long press resets measurements of MAX, MIN, AVG, and
|PEAK| values and resume a measurement.
* |PEAK|: Shows the instantaneous peak value in absolute
value.

Chapter 3 Basic operation KEW 2062/2062BT
- 9 - KEW 2062/2062BT
Chapter 3 Basic operation
3.1 Function switch
Function Description
SETUP
Settings
Changes and confirms the settings for wiring, VT/ CT ratio,
buzzer on/ off, backlight on/ off, nominal frequency 50/ 60Hz. To
restore all
the settings to the default conditions, perform system
reset.
Phase
detection
Tests and shows
the phase rotation sequence, and missing
phase if there is any.
Harmonics
Shows voltage/ current (of the 1st fundamental waveform up to
30th harmonics) RMS
value, content rate, and distortion factor
[THD-R/THD-F].
WPower
Shows: active/ reactive/ apparent power, power factor,
voltage-current phase differences, and voltage/ current (RMS)
value.
～V
AC voltage Shows AC voltage RMS value, peak value, and frequency.
～A
AC current Shows AC current RMS value, peak value, and frequency.
3.2 Buttons and switches
Function
Buttons and
switches
Details
---
Data hold button
Hold down the Data hold button until the LCD shows “ ”
symbol: then the currently displayed value is held. While this
function is activated, readings don’t
change even the input
value varies. To exit from the hold mode, press the data hold
button again or switch the measurement functions: the “ ”
symbol disappears.
Backlight button
[◄] A long press turns on/ off the backlight.
SETUP
Item switching
button [◄►]
Toggles displayed items and changes the setting values.
Mode button
Selects setting items and confirms the entered values.
Harmonics
Item switching
button [◄►]
A short press toggles display: <-> THD-F <-> THD-R <->
1st fundamental wave to 30th harmonics.
[►]
A long press switches voltage and current RMS values.
Mode button
A short press toggles display: <-> Inst value <-> MAX <-> MIN
<-> AVG.
A long press resets measurements of MAX, MIN, and AVG
values and resume a measurement.
KEW 2062/2062BT 3.2 Buttons and switches
KEW 2062/2062BT - 10 -
Function
Buttons and
switches
Details
Power
1P2W
1P3W
Item switching
button [◄►]
A short press toggles display: <-> active power, power factor
<-> active power, voltage-current phase differences <->
active and apparent power <-
> active and reactive power
<-> current and voltage RMS.
Mode button
A short press toggles display: <-> Inst value <-> MAX <->
MIN <-> AVG.
A long press resets measurements of MAX, MIN, and AVG
values and resume a measurement.
Power
3P3W
3P4W
Balance
Item switching
button [◄►]
A short press toggles display: <-> active power, power factor
<-> active and apparent power <-
> active and reactive
power <-> current and voltage RMS.
Mode button
A short press toggles display: <-> Inst value <-> MAX <->
MIN <-> AVG. A long press resets measurements of MAX,
MIN, and AVG values and resume a measurement.
Power
3P3W
Unbalance
Item
switching
button
[►]
A short press during a measurement:
Switches the phase to be measured from R(L1) to T(L3).
[◄►]
A short press while displaying the measured result:
Toggles displays: <-> Three-phase active power <->
R(L1)-phase active power <-> T(L2)-phase active power.
Mode button
A short press during a measurement: Switches between
active power and voltage and current values (RMS).
A long press while displaying the measured result:
Clears the displayed values and resume a measurement.
Power
3P4W
Unbalance
Item switching
button [►]
A short press during a measurement:
Switches the phase to be measured: R(L1) -> S(L2) -> T(L3).
A short press while displaying the measured result:
Toggles displays: <-> active power, power factor <-> active
and apparent power <-> active and reactive power.
Mode button
A short press during a measurement:
Switches between
active power and voltage and current values (RMS).
A long press while displaying the measured result:
Clears the displayed values and resume a measurement.
～V
～A Mode button
A short press toggles display: <-> Inst value <-> MAX <->
MIN <-> AVG <-> |PEAK| (peak value*).
A long press resets measurements of MAX, MIN, AVG, and
|PEAK| values and resume a measurement.
* |PEAK|: Shows the instantaneous peak value in absolute
value.

Chapter 3 Basic operation KEW 2062/2062BT
- 11 - KEW 2062/2062BT
3.3 Symbols displayed in LCD
Symbol Details
Battery indicator: shows remaining battery in 4 levels.
Bluetooth is available. (KEW2062BT only)
LCD display update is held.
Unbalance measurement has been selected. Nothing is displayed for
balance measurement.
Wiring configuration. No indication for single-phase.
Total power: when “either “P1” or “P2” is displayed, it indicates the
power of the single-phase according to the display.
Buzzer is disabled.
Type of total harmonics distortion factor.
Harmonics order: shows 1st (h-1) fundamental wave to 30th (h-30).
VT ratio other than 1/1 has been set.
CT ratio other than 1/1 has been set.
Appears to indicate the type of measured value.
LCD displays the preset nominal frequency at harmonics measurement.
If set 50Hz, LCD displayed “50Hz”.
Negative (-) or positive (no symbol) mark is displayed according to the
polarity of a measured value. For further detail, please see “9.3
Measurement specifications”.
3.4 Unit of measured value
Unit
V RMS voltage A RMS current Hz Frequency
kW Active power kVar Reactive power kVA Apparent power
PF Power factor deg
V-A phase difference % Harmonics
content rate
KEW 2062/2062BT 3.4 Unit of measured value
KEW 2062/2062BT - 12 -
Chapter 4Getting started
4.1 Turning on KEW 2062 / 2062BT
Note
●If the instrument is in powered-off state, though the function switch is set to any measure-
ment range, auto-power off function might be activated. Turn the function switch to OFF,
and then set the switch to the desired position to wake up the instrument.
Even though the instrument doesn’t wake up, the installed batteries may be totally
exhausted. Please replace the batteries with new ones and try again.
4.2 Battery level check
DANGER
●Never try to replace batteries during a measurement.
WARNING
●Before opening the battery compartment cover for battery replacement, disconnect all test
leads from the instrument and set the function switch to “OFF”.
●Do not replace batteries if the instrument is wet.
●Accurate measurement results cannot be obtained while the battery warning indicator
“” is blinking. Stop using the instrument and replace the batteries with new ones
immediately. If the batteries are totally exhausted, the LCD doesn’t show anything nor
“” symbol.
When setting the function switch to any
position other than “OFF”, KEW 2062 /
2062BT gets started and all the LCD
segments are displayed fo
r 1 sec.
Confirm that there’re no chips of
segments.

Chapter 3 Basic operation KEW 2062/2062BT
- 11 - KEW 2062/2062BT
3.3 Symbols displayed in LCD
Symbol Details
Battery indicator: shows remaining battery in 4 levels.
Bluetooth is available. (KEW2062BT only)
LCD display update is held.
Unbalance measurement has been selected. Nothing is displayed for
balance measurement.
Wiring configuration. No indication for single-phase.
Total power: when “either “P1” or “P2” is displayed, it indicates the
power of the single-phase according to the display.
Buzzer is disabled.
Type of total harmonics distortion factor.
Harmonics order: shows 1st (h-1) fundamental wave to 30th (h-30).
VT ratio other than 1/1 has been set.
CT ratio other than 1/1 has been set.
Appears to indicate the type of measured value.
LCD displays the preset nominal frequency at harmonics measurement.
If set 50Hz, LCD displayed “50Hz”.
Negative (-) or positive (no symbol) mark is displayed according to the
polarity of a measured value. For further detail, please see “9.3
Measurement specifications”.
3.4 Unit of measured value
Unit
V RMS voltage A RMS current Hz Frequency
kW Active power kVar Reactive power kVA
Apparent power
PF Power factor deg
V-A phase difference % Harmonics
content rate
KEW 2062/2062BT 3.4 Unit of measured value
KEW 2062/2062BT - 12 -
Chapter 4Getting started
4.1 Turning on KEW 2062 / 2062BT
Note
●If the instrument is in powered-off state, though the function switch is set to any measure-
ment range, auto-power off function might be activated. Turn the function switch to OFF,
and then set the switch to the desired position to wake up the instrument.
Even though the instrument doesn’t wake up, the installed batteries may be totally
exhausted. Please replace the batteries with new ones and try again.
4.2 Battery level check
DANGER
●Never try to replace batteries during a measurement.
WARNING
●Before opening the battery compartment cover for battery replacement, disconnect all test
leads from the instrument and set the function switch to “OFF”.
●Do not replace batteries if the instrument is wet.
●Accurate measurement results cannot be obtained while the battery warning indicator
“” is blinking. Stop using the instrument and replace the batteries with new ones
immediately. If the batteries are totally exhausted, the LCD doesn’t show anything nor
“” symbol.
When setting the function switch to any
position other than “OFF”, KEW 2062 /
2062BT gets started and all the LCD
segments are displayed fo
r 1 sec.
Confirm that there’re no chips of
segments.

LCD indication/ Battery level indicator KEW 2062/2062BT
- 13 - KEW 2062/2062BT
Screw
Battery compartment cover
Size AA Alkaline battery: LR6
CAUTION
●Brand and type of the batteries should be harmonized.
●Never mix new and old batteries.
●Install batteries in correct polarity as marked inside the battery compartment area.
LCD indication/ Battery level indicator
Battery level
Status Details
Battery level is full.
Indicator varies depending on the battery level.
Battery level is low. Replace the batteries with new
ones.
Blink
Battery level is extremely low, and the instrument
doesn’t work normally. Stop using the instrument and
replace the batteries with new ones immediately.
The instrument continues measurement even in this
state; however, Bluetooth will be disabled.
How to install batteries:
Follow the procedures below and insert batteries.
1 Disconnect all cables and set the function switch to OFF position.
2 Loosen one battery compartment cover-fixing screw and remove the cover.
3 Take out all the batteries.
4 Insert two new batteries, size AA alkaline: LR6, observing correct polarity.
5 Install the cover, and then secure it with the screw.
KEW 2062/2062BT 4.3 Test leads connection (to KEW 2062 / 2062BT)
KEW 2062/2062BT - 14 -
4.3 Test leads connection (to KEW 2062 / 2062BT)
The followings should be checked before the connection.
DANGER
●Use only the test leads supplied with this instrument.
●Connect the cables that are required for the desired measurement only.
●First, connect the plug of the test lead to the instrument. Only then connect to the
measurement line.
●Never disconnect the test lead from the voltage input terminal of the instrument during a
measurement (while the instrument is energized).
WARNING
● Never attempt to make measurement if any abnormal conditions are noted, such as a crack
or exposed metal parts.
CAUTION
● Confirm that the instrument is powered off, and then connect the test leads.
● Connect to the instrument first, firmly into the corresponding terminal.
Connect the test leads per the following procedures.
1 Ensure that KEW 2062 / 2062BT is turned off.
2 Connect the test lead to AC voltage input terminal
on the instrument.*
* The number of test leads to be connected
depends on the wiring configuration.
4.4 Connection to the measured object
The following should be checked before the connection.
DANGER
●This instrument is rated to 300 V AC for CAT IV, 600 V AC for CAT III, and 1000V AC for
CAT II
. With attention to the measurement category to which the object under test
belongs, do not make measurements on a circuit in which voltage exceeds these values.
● Use only the test leads designed for this instrument.
●Always connect the test leads to the instrument first.
●When the instrument and the test lead are combined and used together, whichever
lower category either of them belongs to will be applied. Pay attention to the rating of
the instrument and test lead used together.
●Connect the cables that are required for the desired measurement only.
●Current sensor shall be connected to the secondary side of the circuit breaker since the
primary side has dangerous large current capacity.

LCD indication/ Battery level indicator KEW 2062/2062BT
- 13 - KEW 2062/2062BT
Screw
Battery compartment cover
Size AA Alkaline battery: LR6
CAUTION
●Brand and type of the batteries should be harmonized.
●Never mix new and old batteries.
●Install batteries in correct polarity as marked inside the battery compartment area.
LCD indication/ Battery level indicator
Battery level
Status Details
Battery level is full.
Indicator varies depending on the battery level.
Battery level is low. Replace the batteries with new
ones.
Blink
Battery level is extremely low, and the instrument
doesn’t work normally. Stop using the instrument and
replace the batteries with new ones immediately.
The instrument continues measurement even in this
state; however, Bluetooth will be disabled.
How to install batteries:
Follow the procedures below and insert batteries.
1 Disconnect all cables and set the function switch to OFF position.
2 Loosen one battery compartment cover-fixing screw and remove the cover.
3 Take out all the batteries.
4 Insert two new batteries, size AA alkaline: LR6, observing correct polarity.
5 Install the cover, and then secure it with the screw.
KEW 2062/2062BT 4.3 Test leads connection (to KEW 2062 / 2062BT)
KEW 2062/2062BT - 14 -
4.3 Test leads connection (to KEW 2062 / 2062BT)
The followings should be checked before the connection.
DANGER
●Use only the test leads supplied with this instrument.
●Connect the cables that are required for the desired measurement only.
●First, connect the plug of the test lead to the instrument. Only then connect to the
measurement line.
●Never disconnect the test lead from the voltage input terminal of the instrument during a
measurement (while the instrument is energized).
WARNING
● Never attempt to make measurement if any abnormal conditions are noted, such as a crack
or exposed metal parts.
CAUTION
● Confirm that the instrument is powered off, and then connect the test leads.
● Connect to the instrument first, firmly into the corresponding terminal.
Connect the test leads per the following procedures.
1 Ensure that KEW 2062 / 2062BT is turned off.
2 Connect the test lead to AC voltage input terminal
on the instrument.*
* The number of test leads to be connected
depends on the wiring configuration.
4.4 Connection to the measured object
The following should be checked before the connection.
DANGER
●This instrument is rated to 300 V AC for CAT IV, 600 V AC for CAT III, and 1000V AC for
CAT II
. With attention to the measurement category to which the object under test
belongs, do not make measurements on a circuit in which voltage exceeds these values.
● Use only the test leads designed for this instrument.
●Always connect the test leads to the instrument first.
●When the instrument and the test lead are combined and used together, whichever
lower category either of them belongs to will be applied. Pay attention to the rating of
the instrument and test lead used together.
●Connect the cables that are required for the desired measurement only.
●Current sensor shall be connected to the secondary side of the circuit breaker since the
primary side has dangerous large current capacity.

4.4 Connection to the measured object KEW 2062/2062BT
- 15 - KEW 2062/2062BT
DANGER
●Care should be taken so as not to short-circuit the power line with the metal ends of the
test lead at connection. In addition, do not touch the metal tips.
●The tips of the current sensor jaws are designed so as not to short-circuit the power line of
the object to be tested but be careful when measuring an un-insulated conductor.
●Keep your fingers behind the barrier during a measurement.
Barrier: provides protection against electrical shock and ensuring the minimum required
clearance and creepage distances.
For accurate measurement:
●The declared measurement accuracy is guaranteed where the conductor to be measured
is placed at the center of the current clamp sensor.
●Care should be taken so as not to pinch the conductors with the tips of the jaws.
●Confirm and harmonize the wiring configuration of the measurement line and KEW
2062 / KEW2062B T.
● When clamping onto a conductor, make the arrow mark point towards the load side;
otherwise, polarity of active power (P) will be reversed and displayed.
Arrow mark
● Never clamp two or more conductors.
KEW 2062/2062BT Chapter 5 Settings
KEW 2062/2062BT - 16 -
Chapter 5 Settings
Before starting a measurement, adjust the following settings.
* Wiring configuration, frequency of the voltage to be measured,
and VT/ CT ratio, if necessary.
Set the functin switch to “ ” to adjust settings.
Note
● Turning the function switch before confirming the altered settings clears all the changes
you made. Confirm the altered settings, and then turn the function switch.
Item selection (Switch the displayed items)
Press the item switching button [◄►] to toggle the displayed
items and confirm the desired item with the mode button.
Alter the values of each item with the item switching button
[◄►], and then press the mode button again to confirm the
change. The display returns to the selection screen.
The followings are the default settings. System reset restores the altered changes to the default.
Wiring configuration VT ratio CT ratio
Frequency of nominal voltage Backlight
[◄►]
[◄►]
[◄►] [◄►]
[◄►] [◄►]
[◄►]
Item switching button [◄►]: toggles setting items
Mode button : confirms selection and change.
System reset Buzzer

4.4 Connection to the measured object KEW 2062/2062BT
- 15 - KEW 2062/2062BT
DANGER
●Care should be taken so as not to short-circuit the power line with the metal ends of the
test lead at connection. In addition, do not touch the metal tips.
●The tips of the current sensor jaws are designed so as not to short-circuit the power line of
the object to be tested but be careful when measuring an un-insulated conductor.
●Keep your fingers behind the barrier during a measurement.
Barrier: provides protection against electrical shock and ensuring the minimum required
clearance and creepage distances.
For accurate measurement:
●The declared measurement accuracy is guaranteed where the conductor to be measured
is placed at the center of the current clamp sensor.
●Care should be taken so as not to pinch the conductors with the tips of the jaws.
●Confirm and harmonize the wiring configuration of the measurement line and KEW
2062 / KEW2062B T.
● When clamping onto a conductor, make the arrow mark point towards the load side;
otherwise, polarity of active power (P) will be reversed and displayed.
Arrow mark
● Never clamp two or more conductors.
KEW 2062/2062BT Chapter 5 Settings
KEW 2062/2062BT - 16 -
Chapter 5 Settings
Before starting a measurement, adjust the following settings.
* Wiring configuration, frequency of the voltage to be measured,
and VT/ CT ratio, if necessary.
Set the functin switch to “ ” to adjust settings.
Note
● Turning the function switch before confirming the altered settings clears all the changes
you made. Confirm the altered settings, and then turn the function switch.
Item selection (Switch the displayed items)
Press the item switching button [◄►] to toggle the displayed
items and confirm the desired item with the mode button.
Alter the values of each item with the item switching button
[◄►], and then press the mode button again to confirm the
change. The display returns to the selection screen.
The followings are the default settings. System reset restores the altered changes to the default.
Wiring configuration VT ratio CT ratio
Frequency of nominal voltage Backlight
[◄►]
[◄►]
[◄►] [◄►]
[◄►] [◄►]
[◄►]
Item switching button [◄►]: toggles setting items
Mode button : confirms selection and change.
System reset Buzzer
Wiring configuration VT ratio CT ratio
Frequency of nominal voltage Backlight
[◄►] [◄►]
[◄►] [◄►]
[◄►] [◄►]
[◄►]
System reset Buzzer

Wiring systems KEW 2062/2062BT
- 17 - KEW 2062/2062BT
Wiring systems
Select “Wiring configuration” and press the mode button to adjust wiring configurations. Select
the appropriate one out of five wiring configurations according to the wiring system to be tested.
* For Single-phase 3-wire(1P3W), please select “1P2W” (Single-phase 2-wire) and perform
power measurement on each phase (L1/ L2) individually. KEW 2062 / 2062BT cannot
show the total power of 1P3W.
Item switching button [◄►]: toggle the available wiring configurations
Single-phase 2-wire Balance Three-phase 3-wire Unbalance Three-phase 3-wire
Unbalance Three-phase 4-wire Balance Three-phase 4-wire
Press the mode button while the desired wiring configuration is displayed. The selection is
confirmed and the display returns to the selection screen.
VT/ CT ratio
CAUTION
● The display range, when setting VT or CT ratio, is between 0.000 and 9999 (RMS voltage/
current) and between 0.000k and 9999k (power). Please take the display range into
consideration when setting VT or CT ratio. If setting extremely large or small VT or CT
ratio, the LCD may show 0 or OL and wouldn’t change.
● Allowable input is 1100 V to AC voltage terminal and 1100 A to current sensor, regardless
of selected VT or CT ratio. If output of the connected VT or CT exceeds these values,
the LCD shows OL.
This setting is required if the system to be
tested has external VT(s) or CT(s). The set
VT/ CT ratio will be reflected to all the values
measured during any measurements related
to voltage and current.
While the LCD is showing VT or CT ratio, press the mode button. Then 4-digit value is displayed
and the changeable digit starts blinking. Selectable range is between 0.001 and 9999.
The digit selected to be changed will blink.
[◀▶]
[◀▶]
[◀▶][◀▶]
[◀▶]
KEW 2062/2062BT Measurement using VT/ CT ratio
KEW 2062/2062BT - 18 -
A short press of item switching button [◄►] increases or decreases the value by 1. A long
press of the item switching button changes digit position (to right or left). When pressing the
button, while the last digit is blinking, not a digit position but a decimal point moves. A long
press of mode button while changing values or digit position cancels the changes and
restores the setting to 1.000.
Press the mode button to confirm the changes. The display returns to the selection screen.
Measurement using VT/ CT ratio
DANGER
●This instrument is rated to 300 V AC for CAT IV, 600 V AC for CAT III, and 1000V AC for
CAT II
. With attention to the measurement category to which the object under test
belongs, do not make measurements on a circuit in which the electrical potential exceeds
these values.
● Always clamp the secondary side of VT or CT (transformer).
●Do not open-circuit the secondary side of CT while it is energized; otherwise, dangerous
high voltage will be generated at the secondary side.
CAUTION
● When using a VT or CT, the declared measurement accuracy is not guaranteed. If using
either or both of them, please take the accuracies of KEW 2062 / KEW2062BT, VT and CT, and also
phase characteristics into consideration.
If voltage or current values of the measurement line exceed the max measuring range of
KEW 2062 / 2062BT, the primary side value of the line can be obtained by measuring the
secondary side using proper VT or CT for the specific line’s voltage or current. See the
diagram below.
Example:
Single-phase 2-wire (1P2W)
V V
N
L
Power
source Load
VT CT
i
Single-phase 2-wire Balance Three-phase 3-wire Unbalance Three-phase 3-wire
Unbalance Three-phase 4-wire Balance Three-phase 4-wire
[◀▶][◀ ▶ ]
[◀▶] [◀ ▶ ]
[◀▶]

Wiring systems KEW 2062/2062BT
- 17 - KEW 2062/2062BT
Wiring systems
Select “Wiring configuration” and press the mode button to adjust wiring configurations. Select
the appropriate one out of five wiring configurations according to the wiring system to be tested.
* For Single-phase 3-wire(1P3W), please select “1P2W” (Single-phase 2-wire) and perform
power measurement on each phase (L1/ L2) individually. KEW 2062 / 2062BT cannot
show the total power of 1P3W.
Item switching button [◄►]: toggle the available wiring configurations
Single-phase 2-wire Balance Three-phase 3-wire Unbalance Three-phase 3-wire
Unbalance Three-phase 4-wire Balance Three-phase 4-wire
Press the mode button while the desired wiring configuration is displayed. The selection is
confirmed and the display returns to the selection screen.
VT/ CT ratio
CAUTION
● The display range, when setting VT or CT ratio, is between 0.000 and 9999 (RMS voltage/
current) and between 0.000k and 9999k (power). Please take the display range into
consideration when setting VT or CT ratio. If setting extremely large or small VT or CT
ratio, the LCD may show 0 or OL and wouldn’t change.
● Allowable input is 1100 V to AC voltage terminal and 1100 A to current sensor, regardless
of selected VT or CT ratio. If output of the connected VT or CT exceeds these values,
the LCD shows OL.
This setting is required if the system to be
tested has external VT(s) or CT(s). The set
VT/ CT ratio will be reflected to all the values
measured during any measurements related
to voltage and current.
While the LCD is showing VT or CT ratio, press the mode button. Then 4-digit value is displayed
and the changeable digit starts blinking. Selectable range is between 0.001 and 9999.
The digit selected to be changed will blink.
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KEW 2062/2062BT Measurement using VT/ CT ratio
KEW 2062/2062BT - 18 -
A short press of item switching button [◄►] increases or decreases the value by 1. A long
press of the item switching button changes digit position (to right or left). When pressing the
button, while the last digit is blinking, not a digit position but a decimal point moves. A long
press of mode button while changing values or digit position cancels the changes and
restores the setting to 1.000.
Press the mode button to confirm the changes. The display returns to the selection screen.
Measurement using VT/ CT ratio
DANGER
●This instrument is rated to 300 V AC for CAT IV, 600 V AC for CAT III, and 1000V AC for
CAT II
. With attention to the measurement category to which the object under test
belongs, do not make measurements on a circuit in which the electrical potential exceeds
these values.
● Always clamp the secondary side of VT or CT (transformer).
●Do not open-circuit the secondary side of CT while it is energized; otherwise, dangerous
high voltage will be generated at the secondary side.
CAUTION
● When using a VT or CT, the declared measurement accuracy is not guaranteed. If using
either or both of them, please take the accuracies of KEW 2062 / KEW2062BT, VT and CT, and also
phase characteristics into consideration.
If voltage or current values of the measurement line exceed the max measuring range of
KEW 2062 / 2062BT, the primary side value of the line can be obtained by measuring the
secondary side using proper VT or CT for the specific line’s voltage or current. See the
diagram below.
Example:
Single-phase 2-wire (1P2W)
V V
N
L
Power
source Load
VT CT
i
V V
N
L
Power
source Load
VT CT
i

Buzzer ON/ OFF KEW 2062/2062BT
- 19 - KEW 2062/2062BT
Buzzer ON/ OFF
Keypad sounds, and phase detection buzzer can be muted. This setting doesn’t affect the
low battery warning buzzer and the buzzer indicating auto-power-off is activated.
Select “Buzzer” and press the mode button. Then “ON(on)”/ “OFF(oF) starts blinking. Now
it is ready to change the setting.
Item switching button [◄►]:
on: Buzzer sounds oF: No buzzer sounds
Press the mode button to confirm the changes. The display returns to the selection screen.
Backlight ON/ OFF
This setting is to enable or disable auto-backlight-off function if there’re no key operations
for the specified time.
Select “Backlight” and press the mode button. Then “ON(on)”/ “OFF(oF) starts blinking and
now it is ready to change the setting.
Item switching button [◄►]:
on: Turns off in 5 min. oF: Disables auto-off function.
Press the mode button to confirm the changes. The display returns to the selection screen.
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KEW 2062/2062BT Measurement using VT/ CT ratio
KEW 2062/2062BT - 20 -
Frequency of nominal voltage
Set the power frequency of the object to be measured.
Note
●Harmonics are calculated based on the preset frequencies. For accurate measure-
ment, please check and set the same frequency as the power frequency of the
object to be tested.
Select “Frequency of nominal voltage” and press the mode button. Then “.50[Hz]”/ “.60[Hz]”
starts blinking; that means it is ready to change the setting.
Item switching button [◄►]: Switches the frequencies.
Press the mode button to confirm the changes. The display returns to the selection screen.
The set nominal frequency is displayed as left figure at harmonics
function.
System reset
Restore all the settings to default*. *See P.16 Item selection part.
Select “System reset” and press the mode button. Then “n: Cancel”
starts blinking; that means it is ready to change the setting.
Item switching button [◄►]:
.n: Cancel .y: Performs system reset.
Select “.y” and press the mode button. Then system reset will be done and the display
returns to the selection screen. To cancel or do not want to do system reset, select “.n” and
press the mode button.
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