PW9100-03
AC/DC CURRENT BOX
Instruction Manual
Dec. 2015 Edition 1
Printed in Japan
PW9100A961-00 15-12H
EN
Troubleshooting
If the device seems to be malfunctioning, contact your authorized
Hioki distributor or reseller.When sending the device for repair, be
sure to include details of the problem.
PW9100-04
Discarding the device
Handle and dispose of the device in accordance with local
regulations.
Overview
This device measures AC and DC currents of up to 50 A with a high
degree of precision. Thanks to its excellent frequency characteristics
(amplitude and phase) and temperature characteristics (sensitivity
and offset), it can be used not only for current measurement, but
also for high-precision power measurement.
Names of Parts
Front panel
Output cables
Warranty
Warranty malfunctions occurring under conditions of normal use in
conformity with the Instruction Manual and Product Precautionary
Markings will be repaired free of charge. This warranty is valid for
a period of one (1) year from the date of purchase. Please contact
the distributor from which you purchased the product for further
information on warranty provisions.
Introduction
Thank you for purchasing the Hioki PW9100-03, PW9100-04 AC/
DC Current Box. To obtain maximum performance from the device,
please read this manual rst, and keep it handy for future reference.
Verifying package contents
When you receive the device, inspect it carefully to ensure that
no damage occurred during shipping. In particular, check the
accessories and connectors. If damage is evident, or if it fails to
operate according to the specications, contact your authorized
Hioki distributor or reseller.
Cleaning
To clean the device, wipe it gently with a soft cloth moistened with
water or mild detergent.
Calibrations
The calibration period varies depending on the status of the device
or installation environment. We recommend that the calibration
period be determined in accordance with the status of the device
or installation environment. Please contact your Hioki distributor to
have your device periodically calibrated.
CH A CH B CH C CH D
Current input terminals
CH D
Rear panel
Safety cover
The above gure depicts the PW9100-04 (4-channel model).
CH C CH B CH A
Afx channel number
sticker here.
GND
Safety Information
This device is designed to conform to IEC 61010 Safety Standards,
and has been thoroughly tested for safety prior to shipment.
However, using the device in a way not described in this manual
may negate the provided safety features.
Before using the device, be certain to carefully read the following
safety notes:
DANGER
Mishandling during use could result in injury
or death, as well as damage to the device. Be
certain that you understand the instructions and
precautions in the manual before use.
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WARNING
With regard to the electricity supply, there are risks
of electric shock, heat generation, re, and arc ash
due to short circuits. If persons unfamiliar with
electricity measuring device are to use the device,
another person familiar with such devices must
supervise operations.
Notation
In this document, the risk seriousness and the hazard levels are
classied as follows.
Indicates an imminently hazardous situation
DANGER
WARNING
that will result in death or serious injury to the
operator.
Indicates a potentially hazardous situation
that may result in death or serious injury to the
operator.
Indicates prohibited actions.
Indicates the action which must be performed.
DANGER
• To prevent electrical shock and bodily injury, do
not touch any input terminals on the VT (PT), CT
or the device when they are in operation.
• Do not use the device with circuits that exceed its
ratings or specications. Doing so may damage
the device or cause it to become hot, resulting in
bodily injury/electric shock.
• To avoid electric shock, do not remove the
device's case.
• This device should only be connected to the
secondary side of a breaker. If a short circuit
occurs in the secondary side, the breaker will
interrupt the circuit to prevent a short-circuit
current from owing through the secondary side
circuit. A large current will ow if a short-circuit
occurs in the primary side, resulting in damages
to the device and the installation.
• To prevent electric shock, use crimp contacts that
cover live wires with insulation.
Symbols afxed to the device
Indicates cautions and hazards. When the symbol
is printed on the device, refer to a corresponding
topic in the Instruction Manual.
Indicates a grounding terminal.
Indicates the Waste Electrical and Electronic
Equipment Directive (WEEE Directive) in EU
member states.
Indicates that the device conforms to regulations
set out by the EC Directive.
Measurement categories
This device conforms to the safety requirements for CAT II 1000 V,
CAT III 600 V measuring devices.
Distribution panel
Service entrance
Service drop
CAT IV
(≤600 V)
Power meter
For more information, see the power meter’s instruction manual.
Internal wiring
CAT III
(≤600 V)
Fixed installation
CAT II
(≤1000 V)
T
Outlet
WARNING
• In order to prevent electric shock and short-circuit
accidents, shut off the power to the line to be
measured before connecting the device.
• The device’s current input terminals may become
hot when measuring a large current. Exercise care
during measurement and when disconnecting
wires.
• Connect measurement lines to current input
terminals securely. If a terminal is loose, the
contact resistance will increase, resulting in
overheating, equipment burnout, or re.
• To avoid damage to the device, protect it from
physical shock when transporting and handling.
Be especially careful to avoid physical shock from
dropping.
• To prevent device damage or electric shock,
use only the input screws (M6) or safety covers
that are originally installed. If you have lost any
screws or nd that any screws are damaged,
please contact your Hioki distributor for a
replacement.
This device may cause interference if used in residential areas.
Operating Precautions
Such use must be avoided unless the user takes special
measures to reduce electromagnetic emissions to prevent
interference to the reception of radio and television broadcasts.
Device installation
To keep the device from becoming hot, leave at least 20 mm of
space between it and any surrounding objects.
Operating environment: See the power meter instruction manuals.
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Preliminary Checks
Before using the device, verify that no damage occurred during
storage or shipping. If you nd any damage, contact your authorized
Hioki distributor or reseller.
Measurement Method
Turn off the power meter.
1
Afx the channel number stickers corresponding to
2
the power meter channels.
Remove the safety covers.
3
Connect the output cables to the power meter’s
4
current sensor input connectors.
Connect the measurement cables to the device’s
5
current input terminals.
Reattach the safety covers.
6
To prevent contact with the current input terminals,
7
secure the output cables for channels not being
used with a tie band.
Connect the measurement cables to the
8
measurement lines.
For more information about how to connect the device, refer
to the power meter’s instruction manual or the [Connection]
screen. If referring to the wiring diagram for a current sensor
or current probe, change the sensor in the wiring diagram so
that the connection is as follows:
Power meter
Power source Load
When using a sensor
To ensure accurate measurement, do not connect output
cables and measurement cables in parallel.
Apply the included color labels to the output cables
9
and wires as necessary so that channels and
connections can be identied.
Turn on the power meter and start measurement.
10
The device will be recognized as a 50 A rated current sensor
at each connected power meter channel.
The voltage must be measured in order to perform power
measurement. For more information about connections and
power meter settings and precautions, refer to the instruction
manual for the power meter being used.
Power meter (rear of PW6001)
Power source Load
When using the PW9100
PW9100
Example connections when using 6 channels
Rear of PW6001
PW9100-03PW9100-03
Choosing the connection method
Example: When using the device and a PW6001 with a 1P2W
connection
Depending on the input level, the power meter’s instrument loss may
affect measured values. Choose the connection method that has the
lower instrument loss at the inputs connected to the load side from
the two possibilities shown below.
(1) Connect i n g the p owe r
meter’s voltage input
terminals to the load side
Loss = (Input voltage [V])2 / 4 [MΩ]
L
Voltage-side input
Power
source
Current-side
input resistance
±
N
1.5 m
Ω
Power including loss is measured
by means of the voltage input
terminal’s input resistance.
resistance
4 M
I
U
Load
Ω
±
(2) Connecting the device’s
current input terminals
to the load side
Loss = (Input current [A])2 × 1.5 [mΩ]
L
U
Power
source
N
Power including loss is measured
by means of the current input
terminal’s input resistance.
Voltage-side input
resistance
4 M
Ω
Current-side
input resistance
± ±
1.5 m
Load
I
Ω
Rack Installation
You can remove the screws from the rear of the
instrument and attach rack-mounting hardware.
The rack-mounting hardware shown at the right is
available on a special-order basis in both EIA and JIS
variants. For more information, please contact your
authorized Hioki distributor or reseller.
External dimensions
430 ±2 mm
Power off
1
10
Power on
88 ±2 mm
102 ±2 mm
Output cables
Front
3 6
Rear
9
Power source
Line A
Line B
Line C
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4
Crimp contacts
7
2
Width: 17 mm or less
Must accept M6 screw.
Insulated type
Tightening torque: 2.5 to 3 N·m
Measurement cables
5
Load
260 ± 2 mm
310 ± 2 mm
8
Example current measurement
connection: 3P3W3M
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100
Measurement accuracy
Specifications
f.s.: Indicates the measurement range, maximum display value, or device rating.
rdg.: Reading or displayed value (the value currently being measured and indicated
on the measuring instrument).
Operating environment Indoors, pollution degree 2,
Operating temperature
and humidity
Storage temperature and
humidity
Dust-proof, water-proof IP20 (EN 60529)
Standards Safety: EN 61010
Dielectric strength 5.4 kV AC (sensed current of 1 mA), 50 Hz/60 Hz, 1 min.
Power supply Supplied from PW6001, 3390, or 3390-10
Power supply rating ±11 V to ±13 V (tracking)
Interface Dedicated interface (ME15W)
Dimensions Approx. 430W × 88H × 260D mm
Output cable length Approx. 80 cm
Mass PW9100-03: Approx. 3.7 kg (130.5 oz.)
Product warranty period 1 year
Accessories Channel number stickers, color labels, instruction
Options CT9901 Conversion Cable (for connecting to the 3390 or
Input and measurement
method
Rated primary current 50 A AC/DC
Number of input
channels
Maximum input current Within derating region (see graph below)
Output voltage 2 V/50 A
Maximum output voltage Approx. ±7 V
Maximum rated voltage
to earth
Measurement terminals Terminal block (with safety cover): M6 screws
Input resistance 1.5 m
Input capacitance Between measurement terminals and case (secondary
Output resistance 50
Conditions of guaranteed
accuracy
10
Current [A]
1
Derating
Guaranteed accuracy range
0.1
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1 10 100 1 k 10 k 100 k 1 M 10 MDC
Derating and guaranteed accuracy range (at 0°C to 40°C)
altitude up to 2000 m (6562 ft.)
0°C to 40°C (32°F to 104°F), 80% RH or less
(no condensation)
-10°C to 50°C (14°F to 122°F), 80% RH or less
(no condensation)
EMC: EN 61326 Class A
• Between current input terminals and output cable
terminals and case
• Between channels
±400 mA per channel or less (during 50 A/55 Hz
measurement with ±12 V power supply)
(16.93”W × 3.46”H × 10.24”D)
PW9100-04: Approx. 4.3 kg (151.7 oz.)
manual, tie bands (PW9100-03: 3; PW9100-04: 4)
3390-10) and CT9902 Extension Cable (5 m)
Isolated input, DCCT input
PW9100-03: 3 channels, PW9100-04: 4 channels
However, up to ±200 A peak is allowable if within 20 ms
(design value).
1000 V (measurement category II)
600 V (measurement category III)
Anticipated transient overvoltage: 6000 V
Proper torque: 2.5 N·m to 3 N·m
or less (50 Hz/60 Hz)
Ω
side), 40 pF or less, dened at 100 Hz
±2
Ω
Ω
Guaranteed accuracy period: 1 year
Guaranteed accuracy period after adjustment made by
Hioki: 1 year
Temperature and humidity for guaranteed accuracy:
23°C ±5°C (73°F ±9°F), 80% RH or less
Warm-up time: at least 30 min.
Input waveform: sine wave
Connection: measuring instrument with an input
resistance of 0.9 M
Terminal-to-ground voltage: 0 V
60 A
50 A
to 1.1 M
Ω
20 kHz
50 A
Ω
30 kHz
100 kHz
10 A
60 A
500 kHz
100 kHz
30 A
4 A
1 MHz
1 A
Frequency [Hz]
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10 MHz
0.7 A
Frequency Amplitude Phase
DC ±0.02% rdg. ±0.007% f.s. –
DC < f < 30 Hz ±0.1% rdg. ±0.02% f.s. ±0.3 deg.
30 Hz ≤ f < 45 Hz ±0.1% rdg. ±0.02% f.s. ±0.1 deg.
45 Hz ≤ f ≤ 65 Hz ±0.02% rdg. ±0.005% f.s. ±0.1 deg.
65 Hz < f ≤ 500 Hz ±0.1% rdg. ±0.01% f.s. ±0.12 deg.
500 Hz < f ≤ 1 kHz ±0.1% rdg. ±0.01% f.s. ±0.5 deg.
1 kHz < f ≤ 5 kHz ±0.5% rdg. ±0.02% f.s. ±0.5 deg.
5 kHz < f ≤ 20 kHz ±1% rdg. ±0.02% f.s. ±1 deg.
20 kHz < f ≤ 50 kHz ±1% rdg. ±0.02% f.s. ±(0.05 × f) deg.
50 kHz < f ≤ 100 kHz ±2% rdg. ±0.05% f.s. ±(0.06 × f) deg.
100 kHz < f ≤ 300 kHz ±5% rdg. ±0.05% f.s. ±(0.06 × f) deg.
300 kHz < f ≤ 700 kHz ±5% rdg. ±0.05% f.s. ±(0.07 × f) deg.
700 kHz < f ≤ 1 MHz ±10% rdg. ±0.05% f.s. ±(0.07 × f) deg.
Frequency band 3.5 MHz (-3 dB typical)
• Unit for f in accuracy calculations: kHz
• Amplitude accuracy and phase accuracy are dened within the accuracy
guarantee range shown in the derating gure. However, the design value is
DC < f < 10 Hz.
• When using the CT9902 Extension Cable (5 m), add the accuracy shown in
the table below. Measurement bandwidth: 2 MHz (±3 dB typical)
• Accuracy is not dened when 2 or more CT9902 are connected together.
Frequency Amplitude Phase
DC ≤ f ≤ 10 kHz ±0.015% rdg. None added
10 kHz < f ≤ 50 kHz ±0.015% rdg. ±(0.02 × f) deg.
50 kHz < f ≤ 300 kHz ±0.015% rdg. ±(0.03 × f) deg.
300 kHz < f ≤ 700 kHz ±2% rdg. ±(0.03 × f) deg.
700 kHz < f ≤ 1 MHz ±4% rdg. ±(0.03 × f) deg.
Output noise 300 µV rms or less (≤1 MHz)
Effects of temperature Within the range of 0°C to 18°C or 28°C to 40°C
Effects of
magnetization
Effects of commonmode voltage
(Dened for CMRR)
Effects of radiated
radio frequency
electromagnetic eld
Effects of external
magnetic eld
Connectable products PW6001 Power Analyzer
Amplitude accuracy: ±0.005% rdg./°C
Offset voltage: ±0.005% f.s./°C
Phase: ±0.01 deg./°C
5 mA or less (input conversion value, after input of ±50 A)
50 Hz/60 Hz: 120 dB or greater
100 kHz: 120 dB or greater
(Effect/common-mode voltage on output voltage)
0.5% f.s. or less at 10 V/m
±10 mA or less (for a magnetic eld of 400 A/m at DC or
50 Hz/60 Hz)
3390, 3390-10 Power Analyzer (using the CT9901
Conversion Cable)
PW6001 Power Analyzer combined accuracy
Frequency Current Power
DC ±0.04% rdg. ±0.037% f.s.
45 Hz ≤ f ≤ 65 Hz ±0.04% rdg. ±0.025% f.s.
DC,
band other than
45 Hz ≤ f ≤ 65 Hz
(f.s.: PW6001 range)
(f.s.: PW6001 range)
PW6001 accuracy + PW9100
accuracy (Consider sensor rating
when calculating f.s. error.)
±0.04% rdg. ±0.057% f.s.
(f.s.: PW6001 range)
±0.04% rdg. ±0.035% f.s.
(f.s.: PW6001 range)
PW6001 accuracy + PW9100
accuracy (Consider sensor rating
when calculating f.s. error.)
• To calculate the phase accuracy, add the PW6001 accuracy and the
PW9100 accuracy.
• For other measurement parameters, add the PW6001 accuracy and the PW9100
accuracy (and consider the sensor rating when calculating the f.s. error).
• When using the 1 A range or the 2 A range, add ±0.12% f.s. (f.s.: PW6001 range).
• Accuracy additions dened by conditions in the PW6001 and PW9100
specications also apply.
• To use the PW6001’s sensor phase correction function when using the
CT9902, it is necessary to obtain calibration data for the combination of the
device and the CT9902.
3390, 3390-10 Power Analyzer combined accuracy
• Add the power analyzer accuracy and the PW9100 accuracy (and consider
the sensor rating when calculating f.s. error).
• Accuracy additions dened by the
also apply.
power analyzer
and PW9100 specications
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