KYORITSU 6315 Quick Manual
Quick Manual
KYORITSU ELECTRICAL
INSTRUMENTS WORKS, LTD.
POWER QUALITY ANALYZER
KEW631
KEW6315
KEW631KEW631
5
55
Preface
● 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.
● Safety Warning!
The instruction 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.
Content
1. Instrument Overview ·············································································· 2
2. Start/ Stop Recording ··································································· 5
3. Instrument Layout ················································································ 13
4. Getting Started ··················································································· 17
5. Inst/ Integration/ Demand
Inst value : W ···················································································· 19
Integration value: Wh/ Demand ····························································· 21
KEW6315
6. Vector ···················································································· 25
7. Waveform ··············································································· 26
8. Harmonics Analysis ··································································· 27
9. Power Quality
Event(Swell/ Dip/ Int/ Inrush current/ Transient) ········································· 30
Flicker ······························································································ 33
10. Setting ················································································ 35
11. SD Card/ Saved Data ········································································· 38
The latest software can be downloaded from our homepage: http://www.kew-ltd.co.jp.
- 1 - KEW6315
KEW6315
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Feature
This is a Clamp-type Power Quality Analyzer that can be used for various wiring systems.
It can be used for simple measurements of instantaneous/ integration/ demand values, and also for
analysis of harmonics and events related to power quality and for the simulation of power factor
correction with capacitor banks. Moreover, it can display waveforms and vectors of voltage and current.
Data can be saved either in the SD card or the internal memory, and can be transferred to PC via USB,
or in real time via Bluetooth communication.
Safety construction
Designed to meet the international safety standard IEC 61010-1 CAT.IV 300V/ CAT.III 600V/ CAT.II 1000V.
Power quality analysis
KEW6315 is designed to meet the international standard IEC61000-4-30 Class S and can measure
frequency and r.m.s. voltage with high accuracy, and also can analyze harmonics. Moreover, it can
measure swell, dip, interruption, transient, inrush current and flicker all at once without a gap.
Power measurement
KEW6315 measures active/reactive/apparent power, electrical energy, power factor, r.m.s. current, phase
angle and neutral current simultaneously.
Wiring configuration
KEW6315 supports: Single-phase 2-wire (4ch), Single-phase 3-wire (2ch), Three-phase 3-wire (2ch) and
Three-phase 4-wire.
Demand measurement
Electricity consumption can be easily monitored so as not to exceed the target maximum demand values.
Waveform/ vector display
Voltage and current can be displayed by waveform or vector.
Saving data
KEW6315 is endowed with a logging function with the preset recording interval. Data can be saved by manual
operation or by specifying date & time. Screen data can be saved by using the Print Screen function.
Dual power supply system
KEW6315 operates either with AC power supply or with batteries. Both dry-cell batteries (alkaline) and
rechargeable batteries (Ni-MH) can be used. To charge the rechargeable battery, use the charger which is
manufactured by the same company as the batteries. In the event of power interruption, while operating with
AC power supply, power to the instrument is automatically restored by the batteries in the instrument.
Large display
TFT color display with large screen.
Light & compact design
Clamp sensor type, compact and light weight design.
Application
Data in the SD card or the internal memory can be saved in PC via USB. Analysis of the downloaded
data and instrument settings are possible by using the special software “KEW Windows for KEW6315”.
Real-time communication is available via Bluetooth.
Input/ Output function
Analog signals from thermometers or light sensors can be measured simultaneously with electrical power
data via 2 analog inputs (DC voltage); when any events related to power quality occur, signals can be
transmitted to alarm devices via one digital output.
Feature
KEW6315 - 2 -
Functional overview
3
Display the avg/ max/ min instantaneous values of
current/ voltage/ active power/ apparent power/
reactive power. Integration values also can be viewed
by switching screens. Moreover, demand values with
” for further details.
” to start
up setting by
” for further details.
Functional overview
Start/ Stop
Choose either “Quick start guide” or “Start now
recording. Can do simple and fast startselecting “Quick start guide”.
See “2. Start/Stop Recording
Inst/ Integration/ Demand
the preset target value can also be checked.
See “5. Inst/ Integration/ Demand
KEW6315
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Vector and Wiring check
Vectors of voltage and current per CH are
displayed on a graph. KEW6315 will perform
wiring check.
See “6. Vector” for further details.
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KEW6315
4
Waveform
Waveforms
Waveform
Harmonic Analysis
Harmonic components of voltage and current per CH are
displayed on a graph.
See “
graph.
See “7.
of voltage and current per CH are displayed on a
” for further details.
8. Harmonic Analysis” for further details.
Functional overview
Setting (SET UP)
Make settings for KEW6315 and measurements.
See “10. Setting” for further details.
KEW6315 -
Power Quality (QUALITY) event
Display voltage swell, dip, int, transient, inrush current
and flicker.
See “9. Power Quality” for further details.
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Start/ stop recording
5
start recordings with simple steps by selecting
Ensure your safety and do the appropriate preparation
Select the item you want to record.
The number of selected items will have effect on file size and
also on max recording time.
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Check the Test environment.
diagnosis, wiring check and detection of connected
* It is recommended to do this test for ensuring the testing
See P.40.
Select the wiring system to be measured.
2
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S
t
a
r
t
/
Can
Select the
recording item
S
Steps for measurement
t
o
p
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e
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d
i
n
g
“Quick start guide”.
s before starting measurements.
Select the
wiring system
(1)
*
Confirm the
connections
(2)
* Select a proper wiring system for accurate
measurements.
See P.7.
Check the test
environment
KEW6315
(3) Connect to the circuit to be tested.
* Read and follow the safety precautions
described in the instruction manual.
-
(4)(5)
* Self-
sensors will be performed in this test.
conditions are correct.
See P.17.
See P.8.
- KEW6315
KEW6315
6
ethod
Select a recording interval.
* Selecting
case,
instructions
See P.
short interval gets the file size large. In this
Start/ stop recording
Select the
rec. interval
Select the
rec. m
(6)
Check the
selected method
Start
recording
a
a long period recording cannot be performed.
38.
(7)(8)(9) Select a recording method.
See P.11.
(10) Prepared. Recording will start.
The mark “ REC ” will appear on the screen
when the recording starts and the green LED
(status indicator) lights up.
If you want to terminate the recording, press
the “ ” button and follow the
displayed on the screen.
KEW6315 -
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Wiring system
Power
supply
A4
A3
A2
A1
VN
V1
A4
A3
A2
A1
VN
V1
V2
A4
A3
A2
A1
VN
V1
V2
A3
A2
A1
V3
V1
V2
A3
A2
A1
V3
V1
V2
VN
(2) Wiring system
Any of the followings can be selected.
L
N
L1(R)
supply
Power
L2(S)
L3(T)
L
N
L
N
L
N
L
N
Load
(1)
1P2W
Load
(2)
1P2W
Load
(3)
1P2W
Load
(4)
1P2W
L1(R)
L2(S)
L3(T)
L1(R)
L2(S)
L3(T)
1P2W×2
1P2W×3
1P2W×4
Load
(1)
3P3W
Load
(2)
3P3W
1P2W×1
3P3W×1
3P3W×2
KEW6315
L1
supply
Power
N
L2
L1
N
L2
Load
(1)
1P3W
1P3W×1
1P3W×2
L1
Load
N
(2)
1P3W
L2
L1(R)
supply
Power
L2(S)
L1(R)
L2(S)
Load
3P3W
L3(T)
L3(T)
3P3W3A
L1(R)
Power supply
L2(S)
L3(T)
N N
L1(R)
L2(S)
L3(T)
3P4W
Load
3P4W
Orientation of Clamp sensor
Power
source
Load
Arrow mark:
Point towards
load side.
Reverse clamping switches the symbols (+/-)
for active power (P).
- 7 - KEW6315
KEW6315
8
result will be
Operating condition of the instrument system will
(4)/ (5) Test Environment Check
Test environment check
Select “ Start test ”and press the “ENTER”
button to start the test. The test
displayed on the screen.
Select and press the “ENTER” on “OK”/
”NG” to see the details.
Environment check
Wiring check
Test results of each item will be displayed.
* NG result may be given, even if the wiring is correct,
at the measurement site under bad power factors.
Self-diagnosis
be checked and the result will be displayed.
The connected sensors are automatically
detected and their max Ranges will be set.
Sensor detection
KEW6315 -
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Wiring check
9
Close the result display. Then, the blinking vectors and the
values of NG items will be displayed. If all the results are
OK, the ideal vector diagram will be displayed at the lower
Voltage clip is firmly connected to the DUT?
Measuring too high harmonic components?
Voltage clip is firmly
Voltage test lead
AC v
Settings are matched with the wiring system under
test?
Voltage clip is firmly connected to the DUT?
Voltage test lead
AC v
within ±10º of reference value
Voltage test leads are properly connected?
(Connected to proper channels?)
Clamp sensors are firmly connected to the Power
input terminals on the instrument?
Setting for Current Range is appropriate for input levels?
Arrow mark on the Clamp sensor and the orientation
of flowing current coincide with each other?
(Power supply to Load)
Clamp sensors are connected properly?
NG judgment
Wiring check
Criteria of judgment and cause
left corner.
KEW6315
Check Criteria of Judgment
Frequency of V1 is within 40
Frequency
AC voltage
input
Voltage
balance
Voltage
phase
Current
input
Current
phase
- 70Hz.
AC voltage input is 10% or
more of (Nominal voltage x
VT).
AC voltage input is within
±20% of reference voltage
(V1).
* (not checked in
single-phase wiring)
Phase of AC voltage input is
(proper vector).
Current input is 5% or more
and 110% or less of (Current
Range x CT).
- Power factor (PF, absolute
value) at each CH is 0.5 or
more.
- Active power (P) at each
CH is positive value.
Causes
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oltage input terminal on the instrument?
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oltage input terminal on the instrument?
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connected to the DUT?
is firmly connected to the
is firmly connected to the
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- KEW6315
KEW6315
10
If “NG” judgment is given frequently, there might be something wrong with the instrument.
in the instruction manual.
If the detection result is NG, each sensor type will be displayed in red.
Types of the connected current sensors are harmonized? Types of the current
measurements
sensors are firmly connected to the
If any failures are in doubt:
Exchange the connections of the sensors and test again.
Connect the current sensor, for
another sensor is properly detected.
If the result "NG" is given
suspected. A defect of sensor is suspected if "NG" is given for the same
another
Stop using the instrument and the sensor, if any defects are in doubt, and refer
Self-diagnosis
instrument and refer to “Troubleshooting”
Sensor detection
Criteria of judgment and cause
Self-diagnosis
Stop using the
Causes
Check
Type of
current sensor
???
(cause unknown)
KEW6315 -
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sensors used for
- Current
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sensor connected to
to "Troubleshooting"
Causes
should be the same.
instrument?
which "NG" is given, to the CH on which
for the same CH, a defect of the instrument is
CH.
in the instruction manual.
-
Setting for recording method
11
date and time.
start date and time.
performs recording at the preset
as above
to 18:00 on August
KEW6315 performs recording during the selected time period at the preset
as above
, and
(8)/ (9) Setting for recording method
The following explains how to set recording start
KEW6315
(8) Specify the recording
During the selected period, KEW6315
Example: When the date & time are specified
From 8:00 on August 2, 2013
(9) Specify the recording time period.
intervals.
, the recording period will be as follows.
7, 2013,
recording processes during the preset time span.
Example: When the time period is specified
record data between 18:00 and 8:00.
(i) 8:00 to 18:00 on August 1, 2013,
(ii) 8:00 to 18:00 on August 2, 2013,
(iii) 8:00 to 18:00 on August 3, 2013,
(iv) 8:00 to 18:00 on August 4, 2013,
(v) 8:00 to 18:00 on August 5, 2013,
(vi) 8:00 to 18:00 on August 6, 2013,
(vii) 8:00 to 18:00 on August 7, 2013
(viii) 8:00 to 18:00 on August 8, 2013.
-
intervals, and repeats
, the recording period is as follows. KEW6315 does not
- KEW6315
KEW6315
12
is used for selecting an item, the
the alternation.
are explained as follows
Cursor
is being selected, over the i
left is the Recording start screen. Press the
the blue highlight on the desirable recording method, and press the
Key to confirm the selection. To quit the start guide, press
Key.
display of t
then
the
ENTER
previous screen
To alter the numbers such as
over digits with the right and left
with the up and down
In the screen to the left, the tenth place of the day is being selected.
The number can be increased or decreased by 1 with the up/ down
s.
ESC
the changes.
blue highlight
, showing the item
. In the screen at the
Key and move
select
able items
Date/ Time
and alter the number
Switching of displayed parameters
Basically, the Cursor Key
selection, and the ESC Key is for canceling
Guide” as an example, Key operations
Press the
ENTER
the ESC
If the
to the left,
used. Use
press the
ENTER Key is for confirming the
Taking the procedures in “Quick Start
.
Key to move the
tems in blue letters
he
the up, down, right and left Cursor Keys can be
Cursor Keys to select the proper wiring system and
Key to confirm the selection. To return to the
and cancel the changes, press the ESC Key.
is similar to the one shown
Operating procedure
Cursor
Cursor Keys.
Cursor Keys
, move the blue highlight
Cursor Key
press the
Press the ENTER Key to confirm the selection, or
Key to return to the previous screen and cancel
KEW6315 -
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