Kyoritsu Electrical Instruments Works, Ltd. KEW 5010 User manual

INSTRUCTION MANUAL
KEW LOGGER SERIES
Current Logger KEW 5010
Current&Voltage Logger KEW 5020
Current / Voltage Measurement & Recording

Introduction
Thank you for purchasing KEW LOGGER 5010/5020.
󱾀Follow the procedure below and set time on the instrument before use.
1) Install the KEW LOG SOFT 2 and the USB Driver according to the
instructions written in the Install Manual for KEW LOG Soft 2.
2) Run KEW LOG SOFT 2 once install is completed. (Refer to 4. Start
KEW LOG SOFT 2
in the Install Manual.)
3) Confirm that the LOGGER and a PC is firmly connected with a USB
Cable and click
Time Synchronizing
.
4) Confirm that the Logger connected with the PC is listed on the
List of detected loggers
. (The USB Driver might not be installed
correctly when a message
No Logger is detected.
is displayed.
Refer to the backside of the
Cautions for installing USB Driver
install or
6. Trouble shooting
(P.8) of the Install Manual and
re-install the USB Driver.)
5) Click Time Synchronizing
Button while the LOGGER is powered on
and checks are marked in the box for each connected LOGGER to
set time.
󱾀
Read this manual and do your desirable settings. (Setting should be done
by using
KEW LOG Soft 2
. Settings for some Recording modes can be
done on the LOGGER.
󱾀
Read through
1. Safety Warnings
in this manual before using the
LOGGER in order to ensure safe operation of the instrument.

Contents
1. Safety warnings ………………………………………………………… 1
2. Features ………………………………………………………………… 4
3. Instrument layout ……………………………………………………… 5
3-1) Panel ……………………………………………………………… 5
3-2) LCD ………………………………………………………………… 5
3-3) Displayed message ……………………………………………… 7
3-4) Function of Button ………………………………………………… 8
3-5) Range/ Filter function …………………………………………… 9
4. Recording procedures ………………………………………………… 10
Step1: Start-up ……………………………………………………… 11
Step2: Confirmation of set value …………………………………… 12
Step3: Preparation before a recording ……………………………… 13
Step4: Start of recording …………………………………………… 15
Step5: Stop of recording
……………………………………………… 17
5. Recording modes and conditions
……………………………………… 18
Normal recording mode ……………………………………………… 19
Trigger recording mode ……………………………………………… 22
Capture recording mode ……………………………………………… 24
Power Quality Analysis mode (only 5020) …………………………… 24
6. Recording modes ……………………………………………………… 25
Flashing Detection LED
………………………………………………… 28
7. Simplified Power Integration Function ………………………………… 31
(available on KEW LOG Soft 2)
8. Other settings (Setting2) ……………………………………………… 34
9. Confirmation of recorded data (CALL)
………………………………… 39
10. Data transfer to PC …………………………………………………… 43
11. Battery replacement …………………………………………………… 45
12. Auto-power off Function & External power supply …………………… 46
13.Trouble-shooting
………………………………………………………… 47
14.Specification …………………………………………………………… 49


1

1. Safety Warnings
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 passed the
inspection. This instruction manual contains warnings and safety rules
which must be observed by the user to ensure safe operation of the
instrument and retain it in safe condition. Therefore, read through these
operating instructions before using 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.
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.


2

DANGER
󱾀
Never make measurement on a circuit in which voltage over AC300V
exists.
󱾀
Do not make measurement while thunder is rumbling. Stop
measurement immediately and disconnect the instrument from the
object under test.
󱾀
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.
󱾀
Transformer jaw tips are designed not to short the circuit under test.
If equipment under test has exposed conductive parts, however, extra
precaution should be taken to minimize the possibility of shorting.
󱾀Never attempt to use the instrument if its surface or your hand is wet.
󱾀Do not exceed the maximum allowable input of any measuring range.
󱾀Never open the Battery Cover during a measurement.
󱾀
Verify proper operation on a known source before use or taking action
as a result of the indication of the device.
WARNING
󱾀
Never attempt to make measurement if any abnormal conditions, such
as broken case and exposed metal parts are found on the instrument.
󱾀
Do not install substitute parts or make any modification to the
instrument. For repair or re-calibration, return the instrument to your
local KEW distributor from where it was purchased.
󱾀
Do not try to replace the batteries if the surface of the instrument is wet.
󱾀
Disconnect all the cords and cables from the object under test and
power off the instrument before opening the Battery Cover for Battery
replacement.
CAUTION
󱾀
Put the instrument on a stable place where is free from vibrations or
shocks.
󱾀
Keep away Floppy Disks, Mag Cards, PCs and Displays from the
magnet, which is attached to the backside of the instrument.
󱾀
Do not expose the instrument to the direct sun, high temperature and
humidity or dewfall.
󱾀
Be sure to power off the instrument after use. When the instrument will
not be in use for a long period, place it in storage after removing the
batteries.
󱾀
Use a cloth dipped in water or neutral detergent for cleaning the
instrument. Do not use abrasives or solvents.


3

Safety symbols
Refer to the instructions in the manual.
󱽩Indicates a Instrument with double or reinforced insulation
Indicates that this instrument can clamp on live bare conductors
when the voltage to be tested is below Circuit – Ground-to-Earth
voltage against the indicated Measurement Category.
〜Indicates AC
Indicates DC
󱾀Measurement categories(Over-voltage categories)
To ensure safe operation of measuring instruments, IEC 61010 establishes
safety standards for various electrical environments, categorized as
CAT.I 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.
CAT.I : Secondary electrical circuits connected to an AC electrical
outlet through a transformer or similar device.
CAT.II : Primary 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 over-current protection device
(distribution panel).


4

2. Features
󱾀
KEW 5020 is a Data Logger capable of measuring Leakage Current,
Load Current and Voltage. (KEW5010 is for measuring Leakage Current
and Load Current).
󱾀Following sensors are used for measuring current & voltage.
* Leak/Load Current Clamp Sensor KEW 8146/8147/8148
* Load Current Clamp Sensor KEW 8121/8122/8123
* Voltage Sensor KEW 8309 (for KEW5020)
󱾀
TRMS measurement & recording of AC Current (50/60Hz) & AC Voltage
(50/60Hz, only on KEW5020)
󱾀LED to indicate pre-set current/ voltage value is exceeded.
(Trigger/ Capture Recording, Power Quality Analysis modes)
󱾀
Can store 60,000 data when using 1ch, and when using all 3ch, can
store 20,000 data at each channel. (Normal recording mode)
󱾀
Data will not be lost at battery replacement or at low battery voltage as it
is stored in nonvolatile memory.
󱾀Long time recording is available by a use of external AC Adaptor
(optional parts) Installed batteries enables backup at a temporally
electricity failure. Size AA Alkaline Battery: about 10-day measurement.
󱾀Can transfer the recorded data to PC via USB cable.
󱾀Protected throughout by double (reinforced) insulation
󱽩
󱾀
This instrument provides 3 Recording modes and Power Quality Analysis
mode (only KEW5020). Various insulation monitoring are available with 4
recording modes. Understand characteristic of each recording mode and
select an appropriate mode.


5

◆Detection LEDs P.28
◆USB P.43
◆Port for External power supply P.46
3. Instrument layout
3-1) Panel
3-2) LCD


6

Mark Details
Channel number (CH No.) : Selected Channel number
is displayed.
Memory Block Number : Memory block (No. 1 to
3) in use is indicated. (P.
38)
Sensor Mark : Displayed on the CH No. to Indicate the
connected Sensor.
Clock Mark : Indicates time
Timer Mark : Timer function is activated.
(Stand-by till the preset time.)
Recording Mark : Recording is being performed.
Auto-power-off is disabled.
(Instrument won't be off automatically.)
Battery Mark : Indicates battery voltage in 4-level
Recording mode
Sub-indication : Indicates Menu items
Date : Month, Day
Main indication : Displays measured, preset and
recording values
Guide mark : Items can be switched with /
button.
One-time : Recording stops when memory becomes full
Endless : Overwrite the old data, and store the latest data.
Range Hold/ Auto Range mark : Status of the selected
Range
Filter mark : Indicates Filter function is activated.
Mark Details
Channel number (CH No.) : Selected Channel number
is displayed.
Memory Block Number : Memory block (No. 1 to
3) in use is indicated. (P.
38)
Sensor Mark : Displayed on the CH No. to Indicate the
connected Sensor.
Clock Mark : Indicates time
Timer Mark : Timer function is activated.
(Stand-by till the preset time.)
Recording Mark : Recording is being performed.
Auto-power-off is disabled.
(Instrument won't be off automatically.)
Battery Mark : Indicates battery voltage in 4-level
Recording mode
Sub-indication : Indicates Menu items
Date : Month, Day
Main indication : Displays measured, preset and
recording values
メニューガイドマーク： メニューモード時、
ボタンで項目を切り
替えられることを表す
ワンタイム： 記録容量一杯になったときの停止 (
ワンタイム) 設定を表示
エンドレス： 記録容量一杯になったときの継続 (
エンドレス) 設定を表示
単位表示
レンジホールド/オートレンジマーク： 表 示CHの
レンジホ
ールド/オ
ートレン
ジ の 状 態
を表示


7

3-3) Displayed message
Message Meaning
Sensor is not connected.
Over-range
Menu: Setting1 (SET.1) P.18
View or change the recording mode/ condition.
Menu: Setting2 (SET.2) P.34
View or change the Location information and
auto-power-off function.
Menu: Recall(CALL) P.39
Recorded qty., Max value reference, Recall
Normal recording mode
Trigger recording mode
Capture recording mode
Power Quality Analysis mode [KEW5020 only]
PC data in transit
Warning of memory clear
Error
（improper Sensor is connected under
Power Quality Analysis mode/ KEW5020 only) (P.47)
All the Memory block are occupied. (P.16)
Move the data and clear the memory. (P.34)
Sub-indication Sensor Type
Load current clamp sensor
Voltage Sensor
Leakage & Load current clamp sensor
Leakage current clamp sensor


8

3-4) Function of Button
Power ON / OFF
Menu mode
Recording/ Measurement mode
Button Power ON Power OFF
Pressing at least 1 sec
(while the LOGGER is off)
Pressing at least 1 sec
(except for recording status)
Button Function
Enter into Menu mode
Start and stop recording
Switch channels
Switch Range and Filter (P.9）
Button Menu Setting Change (flashing)
Select Menu Setting change, Enter
Back Cancel
Switch Menu item Increase number
Switch Menu item Decrease number


9

3-5) Range/ Filter Function
●Range Configuration
Range configuration varies depending on each connected Sensor.
Refer to "12. Specification" (P.45) in this manual.
●Auto-ranging
Auto-ranging is available only in Normal Recording mode. It isn't
available on a Sensor providing one single range.
(e.g. Voltage Sensor "KEW8309" for KEW5020)
●Range Hold
Select the ranges with mark to fix measurement range under
Normal Recording mode.
Measurement range in Trigger/ Capture Recording mode is decided
depending on a detection level. Switching of measurement ranges
with the button isn't possible.
●Filter Function
Lowpass Filter works when Filter Function is ON （ mark lights up）
and filter out the frequency in higher harmonics band.
(Cutoff Frequency: approx 160Hz, attenuation rate -24dB)
●Range/ Filter Function for each Recording mode
Recording mode Function
Normal recording * Switching ranges, On/Off Filter
* Auto-ranging is available.
Trigger/ Capture
recording
* On/Off Filter
* Range corresponds to detection level
* Auto-ranging isn't available.
Power Quality Analysis
[KEW5020 only]
* On/Off Filter
* Auto-ranging isn't available.


10

Following explains the flow of operation: through preparation to the stop
of recording.
P.11
P.12
P.13
P.15
P.17
* The recorded data can be viewed either by the following two methods.
(1) On a PC: Follow the instruction described at "10. Data transfer to
PC" in this manual (P.43) for data transfer, and Help for PC Software
"KEW LOG Soft 2" for operation method.
(2) On the instrument: Refer to Confirmation of recorded data (CALL)
(P.39)
* Press the button at least 1 sec. to power off the instrument.
(This is because to prevent operational error.)
4. Recording procedures
▼
Step1: Start-up
Step2: Confirmation of the set value
▼
Step3: Preparation before recording
▼
Step4: Start of recoding
▼
Step5: Stop of recording
Select the appropriate sensor, and
connect it to the instrument.
Confirm the recording mode.
Install the instrument and do setups for
each channel.
Start recording.
Stop recording.


11

1. Press the button and power off
the instrument. Connect a Clamp/
Voltage Sensor to CH1 (for multiple
connection, starting from CH1) while
the instrument is being off. Connect
them firmly with careful attention to the
orientation of the connector.
2. Press the button at least 1 sec.
to power on the instrument. Release
the button when all indications are
displayed on the LCD.
First, time is displayed, and then
sensors being connected are displayed.
If incorrect time is displayed whenever
powering on the instrument, internal
battery for clock may be exhausted. In
this case, send back the instrument to
your local KEW distributor for repair.
3. Check the connected Sensors.
Sensor (P.7) and the full-scale value are
displayed.
(beginning from CH1)
◆ Sensor mark is displayed on the CH
No,. to which a Sensor is connected .
◆ Only CH1 is used in Capture REC mode.
◆ Voltage sensor is connected to CH1 in
PQA REC mode (only on KEW5020).
◆ Voltage sensor cannot be used with
KEW5010.
◆ Power off the instrument and repeat
steps from 1. to re-connect a Sensor.
▼
▼
▼
Step1: Start-up


12

4. Can make measurement right after
powering on the instrument.
* Each time pressing the button,
CH1 to CH3 switches. When
(non-connect) is displayed on the
LCD, a sensor is not connected
to the selected channel; or the
connection is incorrect.
Check the mark indicating the selected
recording mode. Refer to
5. Recording
modes and conditions in this manual
to change the recording mode or
condition (Recording interval / Preset
current)
Recording mode Details Refer to
Normal Performs continuous measurement/
recording at the pre-set intervals.
(15-kind: 1 sec. to 60min.)
P.19
Trigger Records 8 data (0.8 sec.) in total with
time information when pre-set detection
level is exceeded.
P.22
Capture Records 10 (50Hz) to 12 waveforms
(60Hz) when preset detection level is
exceeded.
(Graph can be viewed on PC)
P.24
(PC setting)
Power Quality Analysis
(only 5020)Records date and time information when
preset Swell, Dip and Short interruption
value are exceeded.
P.24
(PC setting)
Step2: Confirmation of preset value


13

1. Clamp on the measured object and fix
the Sensor. Firmly fix it so as not to
easily come off.
Care should be taken, when connecting
the Voltage Sensor designed only for
KEW5020, not to short the object
under test.
2. Fix the instrument.
1) Fix the instrument with magnet :
Can fix the instrument to metallic plate
with the magnet on its backside.
2) Hang the instrument on hook :
Can fix the instrument with a hook or
screw by using the hooking hole on the
top of the instrument.
(Firmly fix it so as not to easily come
off.)
3. Press the button to switch the
display of measured value among
CH1 to 3. Confirm a proper Sensor is
connected to an appropriate CH.
▼
▼
▼
Step3: Preparation before recording


14

4. Check a Range/ Filter
Press the button to check their on/off
status.
Press the button to change them.
Independent setting of Range & Filter is
available on each CH.
Point
● At Normal Recording mode, Range and
Filter switches each time pressing the
button.
Auto-ranging is also available.
● At Trigger/Capture/Power Quality Analysis
modes, only Filter on/off is available.
Range is selected automatically based
on the detection level (preset value for
Trigger/ Capture Recording). See Setting1
"SEt.1".
● Setting change isn't available during
recording; setting should be done prior to
a recording.
mark means Range Hold Function is
activated.
mark means Auto-ranging Function is
activated.
5. When only the leftmost segment of the
Battery mark is flashing on the LCD, it
means battery voltage is low.
Replace the batteries with new ones.
When nothing is displayed on the LCD,
the batteries are exhausted. Replace the
batteries with new ones.
▼


15

* Settings cannot be changed during recording. Carefully check the
settings prior to a recording.
* Previous recorded data is cleared and new recording starts when
changing the followings and starts recording. (In this case, "CLr" flashes on
the LCD at a start of recording.)
1) Recording mode is changed.
2) CH for Sensor is changed.
3) Sensor type is changed.
* Transfer important data to your PC first and clear Memory (P.33) since
further recording isn't activated when all the 3 blocks in Memory Block
(P.15) are full.
* Follow the procedure below to start recording.
1. Press down the button at least 4 sec.
" " or "CLr" mark flashes. Keep the button
pressed down until " " mark lights up.
Recording stops when the button is released
while the mark is flashing.
2. Measured value is displayed and " " mark
lights up, then measurement starts.
◆ Additional three recordings (Memory Block /
see the next page) are possible.
In this case, one-time is automatically selected
and recording stops when memory becomes
full.
◆ It is recommended to clear the memory before
starting to record if previous data is not
necessary.
Step3: Preparation before recording
↓
or


16

Memory Block
◆ One memory block is used from the start to the end of recording.
◆ 3 blocks in the Memory Block are available; it enables 3 different
recordings at different locations.
◆ Transfer important data to your PC first and clear Memory (Setting 2
or via PC) since further recording isn't activated when all the 3 blocks
in Memory Block are used.
◆ Settable Location No. at Setting 2 "SEt.2" is saved in the Memory
Block together with the measured data; and is useful to recognize the
location where the data recorded on your PC.
◆ At Trigger/ Capture/ Power Quality Analysis modes, zero is saved in
Memory Block even when no data is recorded from the start to the end
of recording.
Operation during recording
Following operations are available during recording.
◆ Displaying the measured value at each CH → button
◆ Recording status : Displaying Max recorded valued & RECALL
Refer to 9. Confirmation of recorded data in this manual.
◆ Check of preset values at Setting 1"SEt.1" & Setting 2 "SEt.2".
Following operations aren't available during recording.
◆ Powering off the instrument
◆ Changing the measurement range.
◆ Change of preset values at Setting 1"SEt.1" & Setting 2 "SEt.2".
◆ Data communication with PC
Stop recording to do above operations.


17

In case that One-time is set to "ON" at Step2: Confirmation and change of
preset value, recording is stopped automatically when Memory becomes
full.
1. Press the button at least 1 sec
to stop recording.
2. Recording stops, and the " " mark
disappears. Then the instrument
goes back into measurement state.
Now, recording completes.
* Press the button at least 1 sec to power off the instrument.
* It is recommended to transfer the important data to a PC.
* The recorded data can be checked on the instrument.
(Refer to : 9. Confirmation of recorded data (CALL) in this manual)
Step5: Stop of recording