● Preface This Quick manual is a simplified version of the full instruction manual which can be found in the supplied
CD-ROM. This manual is intended only as a handy reference guide and should only be used
after having read the full instruction manual which contains full details on each function of this
instrument and the items contained in the package.
● Precautions
The instruction manual (full manual) contains warnings and safety procedures which have to be
observed to ensure safe operation of the instrument and maintain it in a safe condition. Thus,
these operating instructions have to be read prior to using the instrument.
Range ···································································································29
The latest software can be downloaded from our web site.
http://www.kew-ltd.co.jp
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KEW6305
KEW6305
Instrument Overview
1. Instrument Overview
Features
This is a digital Power meter that can be used for various wiring systems and can measure up to 3
systems on single-phase 2-wire circuit. That is, this instrument does the jobs of three just by one. It can be
used for measurements of instantaneous, integration and also demand values.
Measured data can be saved in SD card or the internal memory, and the data can be t
USB. Measured data can be checked on android devices in real-time by using Bluetooth function.
Safety construction
Designed to meet the international safety standard IEC 61010-1 CAT.III 600V
Wiring configration
KEW6305 supports: Single-phase 2-wire, Single-phase 3-wire, Three-phase 3-wire and Three-phase
4-wire
Measurement and calculation
KEW6305 measures voltage (RMS), current (RMS), active power, frequency and calculates reactive/
apparent power, power factor, neutral current (Three-phase 4-wire only) and active/ reactive/
apparent energy.
Demand measurement
Electricity consumption can be easily monitored so as not to exceed the target maximum demand
values.
Saving data
Instantaneous values can be saved every time pressing the
values can be saved for various periods from 1 second up to 1 hour. The maximum, minimum and
average values of instantaneous values during each cycle can also be saved.
Dual power supply system
KEW6305 operates either with an AC power supply or with batteries. In the event of interruption,
while operating with an AC power supply, power to the instrument is automatically restored by the
batteries in the instrument.
Large display
Up to 3 measured items can be displayed on the large screen simultaneously.
(e.g. voltage, current and active power)
Backlight
Backlight to facilitate working in dimly illuminated areas
Light & compact design
Clamp sensor type, compact and light weight design
W
Key. Integration and demand
SAVE
ransmitted to PC via
Application
Data in the internal memory and in SD card can be transferred to PC using USB connection or SD
slot. The supplied PC software application enables easy settings of the instrument and analysis
of the saved data from PC, moreover, can synchronize recording intervals and internal clocks of
two KEW6305 to perform synchronous measurement. Measured data can be checked on android
devices in r
eal-time via Bluetooth communication.
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KEW6305
KEW6305
Functional Overview
Functional Overview
SET UP
Configures KEW6305 and makes settings for
measurements.
WIRING CHECK
Performs a check for proper connection.
(Section 10) “Wiring check”
See
for further details.
[W] Instantaneous value measurement
Measures average, max, min values of instantaneous
values of current, voltage and electric power.
(Section 6) “Instantaneous value measurement”
See
for further details.
[Wh] Integration value measurement
Measures active/apparent/reactive powers on
each CH.
(Section 7) “Integration value measurement”
See
for further details.
DATA CHECK
Displays the saved data on the LCD.
(Section 11) “Data Check”
See
details.
for furt her
[DEMAND] Demand value measurement
Measures demand values based on the preset
target values.
(Section 8) “Demand measurement”
See
further details.
for
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KEW6305
KEW6305
2. Instrument Layout
Front view
Instrument Layout
Status indicator LED
Light up: Recording&
Measuring
Green
Blink: Stand-by
RedLight up: Recording error
Display
(LCD)
Keys
START/ STOP
Start/stop integration &
START
/STOP
demand measurements
Backlight
Turn on/off the LCD
backlight
Cursor
Select settings,
switch screens
ENTER
Confirm entries
ENTER
Key
Key
Key
Key
Function Switch
Power on/ off, select
Measurement range.
DATA
HOLD
W SAVE
Save measured
W
SAVE
instantaneous values
Freeze the readings on the LCD.
* Measurement is being performed while the readings are
being fixed.
A long press (2 sec or longer) disables all Keys (except for
Backlight Key) to prevent operational errors in recording.
Another long press (2 sec or longer) can restore the disabled
Keys.
Key
DATA HOLD
/
ESC
KEY LOCK
ESC
RESET
/
Cancel setting change
or clear int e gra t ion/
demand data selected
Cursor
with
Key
Key
Key
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KEW6305
KEW6305
Connector
SD Card Cover
USB Port Cover
SD Card Slot
USB Port
SD Memory Card
Voltage Input Terminal
(VN, V1, V2, V3)
Power Connector
Current Input Terminal
(A1, A2, A3)
Terminal Cover
< When the Connector Cover is opened >
< When the Connector Cover is closed >
Units
Phase No.
Wiring system
Voltage range
Current range
Connector
Side face
Symbols displayed on the LCD
< All symbols >
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KEW6305
KEW6305
< Symbols appear to show the state of the instrument or measurement >
SymbolDescription
Keys are being locked.
Preset voltage value is exceeded.
Preset current value is exceeded.
Operating with AC power supply.
Operating with batteries.
Data hold function is active.
SET UP Range is selected.
WIRING CHECK Range is selected.
Blinks while instantaneous value is being displayed on the LCD.
Blinks while integration value is being displayed on the LCD.
Blinks while demand value is being displayed on the LCD.
Capacity of SD card or internal memory is full.
DATA CHECK Range is selected.
Data can be saved in the SD card.
* Blinks while saving data.
USB cord is connected to the terminal.
* Blinks during data communication.
Using Bluetooth communication.
Data can be saved in the internal memory.
* Blinks while accessing to the memory.
VT ratio is set to other than 1.
Symbols displayed on the LCD
CT ratio is set to other than 1.
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KEW6305
KEW6305
Preparations
3. Preparations
Battery
KEW6305 operates either an AC power supply or batteries. Capable of performing measurements in an
event of AC power interruption, power to the instrument is automatically restored by the batteries installed
in the instrument. Size AA alkaline dry-cell batteries (LR6) can be used.
If an AC power supply is interrupted and batteries have not been installed, the instr
off and the measuring data may be lost.
Indication on screen
Symbol of power supply displayed on each measurement screen changes as follows.
< During AC power supply operation > < During battery operation >
AC power supply symbol ( ) appears. Battery symbol ( ) appears.
● Battery condition Battery symbol changes as follows depending on battery condition.
Battery operating time
For approx. 15 hours, with new alkaline batteries.
* It is reference time and will be shortened if using the backlight or
Bluetooth function.
ument will be powered
Batteries are exhausted.
(Accuracy of readings cannot be guaranteed.)
Depending on the states of measurement, instrument operates as
follows automatically.
* while saving instantaneous value data (Files are opened.)
-> Close the open files. (Data will be saved.)
* while measuring integration/ demand values
-> Force-quit measurements. (Data will be saved.)
How to install batteries
Install batteries in correct polarity as marked inside.
Remove all the batteries if the instrument is to be stored and will not be in use for a long period.
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KEW6305
KEW6305
Match the
arrow marks.
Rated supply voltage : 100 - 240VAC(±10%)
Rated supply frequency : 45 - 65Hz
Max power consumption : 10VAmax
Voltage test lead
Power cord
Clamp sensor
Error No. (001 – 063)
Cord connection
Cord connection
Start-up screen
KEW6305 will be powered on when setting the Function switch to any position other than OFF.
All of the LCD segments will be displayed first, and then model name with version information.
After that, stand-by screen for the selected range will be displayed.
Upon powering on the instrument, self-check routine initiates automatically. Stop using the instrument if
error message appear on the LCD after self-check and refer to
instruction manual.
(Section 15) Troubleshooting
in the full
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KEW6305
KEW6305
Set-up:
SET UP
Range
4. Set-up:
Set the Function switch to
Settings listed below can be changed. (27 items in total)
List of setting items
SettingSetting no./ itemSymbolDetails
Basic
setting
Time&
Buzzer
Measure-
ment
SET UP Range
SET UP
Range for making various settings.
01 Wiring system
02 Voltage range
03 Clamp sensor
04 Current range-
05 VT ratio
06 CT ratio
07 Date and time
08 Buzzer
09 Recording interval
10 Specific time period
rec. or endless rec.
*1
Time period setting
11
Time setting
*1
12
Time period setting
Date setting
*2
Start of continuous
13
measurement
*2
End of continuous
14
measurement
15 Target demand
16 Demand measure ment cycle
17 Demand warning
cycle
*1 : Setting 11& 12 can be changed only when Setting 10 has been set to ON.
*2 : Setting 13& 14 can be changed only when Setting 10 has been set to OFF.