Hioki PW3365-20 Measurement Manual

PW3365-20

CLAMP ON POWER LOGGER

Measurement Guide

Apr. 2018 Revised edition 1 Printed in Japan

PW3365A984-01 18-04H

Thank you for purchasing the HIOKI PW3365-20
Clamp On Power Logger.
This guide introduces the PW3365-20's basic
measurement procedure with the Quick Set to

rst time users.

Before using the instrument, be sure
to read the Instruction manual carefully.

EN

Names of Parts (excerpt)

POWER Switch

AC adapter
connection jack

Left Upper

Voltage sensor input terminals
(Connect voltage sensors.)

Current sensor input terminals
(Connect clamp sensors.)

SD memory
card slot

Right

Easy conguration with the Set

How to congure electric energy measurement for a
3-phase 4-wire 220 V line

Setting Items Setting Example

Wiring : 3P4W (3-phase 4-wire)
Clamp sensor : Model 9661 (500 A rating)
Current range : 50 A
Save to... : SD memory card
Save interval : 5 minutes
Save items : Average only
Folder/Filename : Automatic
Rec. start method : Interval
Rec. stop method : Manual
Clock setting : User-specied
Measurement frequency : 50 Hz

Preparations

(CH1) (CH2) (CH1) (CH2)(N)

Red

Yellow Red YellowNone

Model 9661 Model PW9020

Attach the color clips.

1

(CH3)

Blue

Quick

Red (CH1)
Yellow (CH2)
Blue (CH3) Blue (CH3)

Color clips for clamp

sensors

(CH3)

Blue

1. Starting the Quick Set

First time powered

Turn on the instrument.

1

(

on left side of instrument

Press the key.

2

The Quick Set Start dialog will
be displayed.

on only

)

Language setting

Measurement

frequency setting

(50 Hz)

231

Press the Enter

3

key.

You will need

Model PW3365-20

Model Z1008 AC Adapter

Red (CH1)
Yellow (CH2)

Color clips for
voltage sensors

Insert the SD memory

2

card. (on right side of
instrument)

Be sure to provide a Hioki

optional SD Memory Card.

Operation is not guaranteed
with other SD memory cards.

2. Basic settings

Model PW9020 Safety Voltage Sensor x4

Model 9661 Clamp on
Sensor (optional) x 3

SD memory card

(optional)

Connect the AC adapter.

3

(

on left side of instrument

Congure settings as

1

shown in screenshot
below.

3P4W

9661 (500 A)

SD CARD

Set the current time.

Press the F2 [NEXT] key.

2

Concept image
of measurement
3-phase 4-wire
220 V line

3. Connect the sensors to the instrument.

Match the color of each sensor’s color clip to the color
of the terminal.

Connect the voltage sensors

1

to the voltage sensor input
terminals.

Connect the clamp sensors

2

to the current sensor input
terminals.

Be sure that the SD memory

3

card is inserted. (on right
side of instrument)

Press the F2 [NEXT] key.

4

Clamp sensor connector (BNC)

Line up

Voltage sensor connector

Insert

Align

Voltage sensor input terminals

Insert

1

Line up

Current sensor

input terminals

2

Lock the
connector.

4. Connecting voltage sensors to the measurement target

)

Proper application

Example: 3-phase 4-wire 220 V line
Secondary side of breaker

Secondary

side

(Load side)

OK

Align the insulated wire with the
marks on the voltage sensor to
the wire.

For more information, see “3.6 Connecting
the Voltage Sensors to Target to be
Measured” in the instruction manual.

A

B

C

N

Yellow

Blue

Red

None

Refer to the wiring diagram to check

1

the locations to which you have
connected the voltage sensors.

Connect the voltage sensors to the

2

secondary side of the breaker.

Check the readings.

3

In this example, the screen should indicate
approximately 220 V and 50 Hz if there is
no problem.
(Because the measurement target is a 220
V line, and the frequency being measured
is 50 Hz.)

Verify the results of checking the

4

wiring.
Press the F2 [NEXT] key.

5

Improper application Failure to apply the sensor properly will prevent you from being to

Clamped with the
tips of the clip

All results are .

make an accurate measurement.

Clamped too far
back in the clip

If there is a

Clamped with the
measurement target at an
angle

Move the cursor to item.

1

Press the

2

Check the contents of the dialog box

3

and correct the wiring.

result

Primary side

key.

Enter

Clamping targets with
different voltages at the
same time

Secondary side

Tip

The power source side of the breaker is called the primary
side; whereas the load side, the secondary side.
For your safety, connect the voltage sensors and the clamp
sensors to the secondary side.

Source side

Breaker

Load side

A
B
C

5. Connecting clamp sensors to the measurement target

Refer to the wiring diagram

1

to check the locations to
which you have connected
the clamp sensors.

Connect the clamp

2

sensors to the secondary
side of the breaker.

Verify that measured

3

values are being displayed.

Current
direction
mark

Power source

side

Load side

Point the arrow
toward the load
side.

When using 9660 sensor

8. Recording settings

Congure settings as shown in screenshot below.

1

5 min

Is this value shorter than the measurement interval?

(

SaveTime

by the free space of the SD memory card
and save items. Up to 1 year)

AVG only (no Harmonic)

MANUAL

: It’s calculated automatically

Rec. start method: INTERVAL
Example: With the save interval set to 5 min.

Start

12

11

10

9

8

7

recording

1

2

3

4

5

6

Recording

Recording

Recording

Recording

Recording

Press the F2 [NEXT] key.

4

Tip

When the measured value is shown as 0 A

The zero-display processing* (which forces the display to read “0 A” when the reading is

0.4% of the range) may cause the display to read “0 A.” Try lowering the current range

while referring to “11.6 Range Conguration and Accuracy by Clamp Sensor” in the

instruction manual.

6. Setting the current range

*Example: For the 500 A range, values that are less than or equal to

2 A (0.4% of 500 A) will be displayed as 0 A.

Display range

Effective
measurement
range

Set the range.

1

In this example
the instrument
is set to 50 A.

Press the F2

2

[NEXT]

key.

(Guaranteed
accuracy

,

range)

50 A range 10 A range

Tip

Set the current range based on the anticipated maximum load current that will
occur during the measurement period. (Refer to the operating status, load rating,
breaker rating, and other data to make this determination.) If the range is too low,
the instrument will experience an over-range event during measurement, making
accurate measurement impossible. If the range is too high, a large error component
will result, making accurate measurement impossible.

Reference

Clamp 1 conductor only.

OK

PROHIBITED

65 A (130% f.s.)

Over-range

55 A (110% f.s.)

0 A 0 A

13 A (130% f.s.)

11 A (110% f.s.)

AUTO

Press the F2 [NEXT] key.

2

9. Checking settings and starting recording

For more information, see “Chapter 6 Starting and Stopping Recording
and Measurement” in the instruction manual.

Check the settings.

1

Press the key.

2

POWER LED

Recording LED

ashing (standby)

Tip

If the

SaveTime

methods can be used to increase the available save time:

• Increase the

• If there is any unnecessary data on the SD memory card, delete it or
reformat the card. (Exit the Quick Set and access the File screen.)

The standby screen will be
shown. Pressing any key will
display the Measurement screen.

(Standby state continues.)

is shorter than the measurement period, the following

SAVE INTVL

.

Recording will start at a well-dened

time.

Data will be saved to the SD
memory card for each save interval.

Tip

• The auto power-off function will cause the screen to turn off, but recording will continue (the Recording and
Power LEDs will stay on).

Start recording

12

11

10

9

8

7

Recording LED lit up
(recording)

1

2

3

4

5

6

Recording

Recording

Recording

Recording

Recording

7. Checking the clamp sensor (current) wiring

Check measured values.

1

• Is the value low or negative?
Verify that the instrument has been
wired (connected) correctly.

• Is the value low? If the value is
lower than 0.5, the instrument
may be wired incorrectly. Check
the wiring.

Verify the results of

2

checking the wiring.

If all results are

the wiring because

but nd no problems.

Press the F2 [NEXT] key.

3

or if you check

,

is displayed

Check even if the graph display falls within
the pass range.

Voltage phase PASS range

Current
phase

Fail result Pass result

1

2
3

If there is a

result

Voltage phase

Current phase PASS
range

Move the cursor to item.

Press the

Check the contents of the dialog box and
correct the wiring.

Enter

key.

• Press the

and setting information on a single screen.

key to display the Setting Conrmation screen, which allows you to check key recording

10. Stopping recording

Press the key.

1

A dialog box asking you to conrm that you

wish to stop recording will be displayed.

Press the Enter key.

2

Recording will be stopped.

Recording
LED off.

After measurement is complete

Disconnect the

Disconnect the sensors from

1

the measurement target.

Turn off the instrument.

2

Disconnect the sensors

3

from the instrument.

1

4

AC adapter.

3

Remove the SD

2

Tip

Saved data can be loaded onto a computer and analyzed using the
SF1001 Power Logger Viewer (optional) or an application such as
Spreadsheet software.

For more information, see “9.3 SF1001 Power Logger
Viewer (Optional)” in the instruction manual.

5

memory card.

(on left side of
instrument)