3169-20
3169-21
CLAMP ON
POWER HiTESTER
Instruction Manual
Jan. 2019 Revised edition 11
3169A981-11 19-01H
EN
i
Contents
Contents
1
Introduction .................................................................. 1
Standard Accessories and Options .............................. 1
Safety Notes ................................................................4
Usage Notes ................................................................ 7
1 Overview 13
1.1 Product Overview .............................................13
1.2 Features ........................................................... 14
2 Parts Names 17
2.1 Instrument Labels and Functions ..................... 18
2.2 Screen Names and Display Elements ..............22
2.2.1 Screen Configuration .........................................22
2.2.2 Common Display ...............................................23
2.2.3 On-Screen Indicators ................................. ........24
3 Measurement Preparations 25
3.1 Banding the L9438-53 Voltage Cord ................25
3.2 Pre-Operation Inspection ................................. 26
3.3 Connection Procedure ...................................... 27
3.4 Connecting the Power Cord............................. 28
3.5 Connecting the Voltage Cords ......................... 29
3.6 Using a Clamp-On Sensor (Option) ................. 32
3.6.1 Clamp-On Sensor Specifications .......................32
3.6.2 Connecting a Clamp-on Sensor ........................34
3.7 Turning the Power On/Off ................................ 36
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4 Connecting to Lines to be Measured 37
4.1 Connection Procedure ...................................... 37
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Contents
4.2 Connection Methods ........................................ 38
4.2.1 Displaying the Wiring Diagram ..........................38
4.2.2 Basic Wiring for Single-Circuit Measurement ....41
4.2.3 Wiring for Multiple-Circuit Measurement ...........47
4.2.4 Connection to a Line to Be Measured ...............50
4.2.5 Checking the Wiring ........ ..................................52
4.3 Measurement Range ........................................56
5 Setting Procedure 59
5.1 Setting Screen ..................................................59
5.2 Setting on the Measurement Setting Screen
(MEASUREMENT) ........................................... 60
5.2.1 Setting the Wiring Method ....................... ..........61
5.2.2 Setting the Synchronization Method ..................63
5.2.3 Setting the Reactive-Power-Meter Method ........64
5.2.4 Setting the Display Average Times ...................66
5.2.5 Setting the Voltage Range ................................67
5.2.6 Setting the VT Ratio (PT Ratio) .........................68
5.2.7 Setting the Current Range .................................69
5.2.8 Setting the CT Ratio ..........................................70
5.2.9 Setting the Clamp-On Sensor ............................71
5.3 Setting on the Data Output Setting Screen
(DATA OUTPUT) .............................................. 72
5.3.1 Setting the Time-Series Measurement Start
Method ..............................................................73
5.3.2 Setting Time-Series Measurement Stop Method
75
5.3.3 Setting Interval ..................................................78
5.3.4 Setting Medium for Saving Data ........................79
5.3.5 Setting the Data File Name ...............................80
5.3.6 Setting Device to Be Connected to the RS-232C
81
5.3.7 Setting the Medium to wh ic h th e Sc re en is to be
Copied ...............................................................82
5.4 Setting on the Save/Print Items Setting Screen
(SAVE, PRINT ITEMS) ..................................... 83
5.4.1 Checking the number of output data items and
Storable Time ....................................................83
5.4.2 Setting Normal Measurement-Data Output Items
...........................................................................84
5.4.3 Setting Integrated power and Demand
Measurement-data Output Items .......................85
5.4.4 Setting Harmonic Measurement-data Output Items
86
5.5 Setting on the System Setting Screen .............. 89
5.5.1 Setting the THD Calculation Method .................90
5.5.2 Setting the Harmonic Order for Display .............91
5.5.3 Setting the RS-232C ........................ ..................92
5.5.4 Setting the LCD Backlight ................................ ..93
5.5.5 Setting the Beep Sound ....................................94
5.5.6 Setting the ID No. ..............................................95
5.5.7 Setting the Clock ...............................................96
5.5.8 Setting the Language ........................................97
5.5.9 Displaying the Serial No. and Version ............... 98
6 Measurement Method 99
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Contents
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6.1 Measuring the Voltage, Current, and Power
(Instantaneous Values) .................................... 99
6.2 Measuring the Power of Each Phase
(Instantaneous values) ...................................101
6.3 Displaying a Waveform .................................. 102
6.4 Measuring the Average, Maximum, and Minimum
Values ............................................................104
6.4.1 Displaying the Voltage, Current, and Power
(Average, Maximum, and Minimum Values) ....105
6.4.2 Displaying the Average, Maximum, and Minimum
Power Measurements of Each Phase ....... ... ...106
6.5 Measuring Integrated power ........................... 107
6.6 Performing Demand Measurement ................ 108
6.7 Measuring Harmonic ...................................... 109
6.7.1 Displaying a Harmonic List ..............................109
6.7.2 Displaying a Harmonic Graph ..........................112
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Contents
6.8 Displaying on a Zoom Screen ........................ 117
6.9 Holding Displayed Measurement Data ........... 118
7 Loading and Saving Settings and Measured
Data 119
7.1 Types of Files .................................................119
7.2 Using a PC Card ............................................ 121
7.2.1 Selecting a PC Card ........................ ................121
7.2.2 Inserting and Removing the PC Card ..............122
7.3 File Operation .................................................123
7.3.1 Initializing (Formatting) the Internal Memory ...124
7.3.2 Initializing (Formatting) the PC Card ...............125
7.3.3 Saving a Setting File ........................................126
7.3.4 Loading a Setting File ......................................128
7.3.5 Deleting a File ..................................................130
7.3.6 Copying a File in the Internal Memory to a PC Card
132
7.4 Saving Measurement Data .............................133
7.4.1 Automatic Storage of Measurement Data .......133
7.4.2 Saving Measurement Data Manually ...............137
7.5 Copying Screen ..............................................139
8 Using a Printer 141
8.1 Connecting the Printer .................................... 142
8.2 Setting the Printer ........................................... 144
8.2.1 Setting the Device to Be Connected to the
RS-232C ................................ .......................... 144
8.2.2 Setting the RS-232C ........................ ................145
8.3 Automatic Output of Measurement Data to the
Printer .............................................................146
8.4 Copying a Screen to the Printer ..................... 148
9 Using the Instrument with a Computer 149
9.1 RS-232C Connection ..................................... 150
9.2 Setting the RS-232C ...................................... 152
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Contents
1
10 Using the External Input/Output Terminal 155
10.1 Connecting the External Input/Output Terminal
155
10.2 Functions of the External Input/Output Terminal
156
10.3 Controlling Multiple Units of the 3169-20/21 ..159
11 Using D/A Output (3169-21 only) 161
11.1 Connecting the D/A Output Terminal ............. 161
11.2 Setting D/A Output ......................................... 163
11.2.1 Setting D/A Output Items .................................163
11.2.2 Setting the Integrated Power Output Rate .......165
11.3 Response of Output ....................................... 166
11.4 Output Waveform ........................................... 168
12 Operations in the Event of Power Outage 173
13 Specifications 175
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13.1 General Specification ..................................... 175
13.2 Formulae ........................................................ 184
13.3 Range Configuration and Accuracy by Clamp-On
-Sensor ...........................................................188
14 Maintenance and Service 193
14.1 Cleaning and Storage ..................................... 193
14.2 Repair and Servicing ......................................194
14.3 Error Messages ..............................................196
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Contents
14.4 System Reset .................................................199
14.5 Instrument Disposal ........................................ 200
Appendix 203
Power Measurement by the 2 Power-Meter Method and
U3/I3 Measurement Theory (3P3W2M mode) ......... 203
Headers of Output Data ........................................... 205
Harmonic Phase Angles .......................................... 209
Output Data ..............................................................211
Index i
Introduction
Power Cord
Input Cord Label
Refer to 3.6.2 "Connecting a
Clamp-on Sensor" (page 34)
L9438-53 Voltage Cord 1set (4 cords)
Alligator Clip 4 clips
( red, yellow, blue, and black /1 each)
Test Leads 4 cords
( red, yellow, blue, and black /1 each)
Spiral Tube 5 pieces
(for banding the cords)
Refer to 3.1 "Banding the L9438-53 Voltage Cord" (page 25)
3169-20/21
CLAMP ON POWER
HiTESTER
Quick Start
Manual
• RS-232C Instruction
Manual
• CSV Conversion
Software (CD-R)
Instruction
Manual
9441 CONNECTION CABLE
(for D/A output, 3169-21 only)
Refer to 11 "Using D/A Output
(3169-21 only)" (page 161)
Thank you for purchasing the HIOKI 3169-20/21 CLAMP ON
POWER HiTESTER. To obtain maximum performance from the
product, please read this manual first, and keep it handy for future
reference.
• Refer to the Quick Start Manual provided with this device.
• For current input with this device, a clamp-on sensor (optional) is
required. For details, refer to the instruction manual for the
clamp-on sensor you are using.
Standard Accessories and Options
Checking the contents of the package
When you receive the product, inspect it carefully to ensure that no
damage occurred during shipping. In particular, check the accessories, panel switches, and connectors. If damage is evident, or if it
fails to operate according to the specifications, contact your dealer
or Hioki representative.
1
2
Options
Clamps Voltage output type:
• 9660 CLAMP ON SENSOR (100 A rms rating)
• 9661 CLAMP ON SENSOR (500 A rms rating)
• 9667 FLEXIBLE CLAMP ON SENSOR (5000 A rms rating)
• CT9667 FLEXIBLE CLAMP ON SENSOR (5000 A rms rating)
• 9669 CLAMP ON SENSOR (1000 A rms rating)
• 9694 CLAMP ON SENSOR (5 Arms rating)
• 9695-02 CLAMP ON SENSOR (50 Arms rating)
• 9695-03 CLAMP ON SENSOR (100 Arms rating)
• 9219 CONNECTION CABLE (for 9695-02/03)
• 9290-10 CLAMP ON ADAPTER
(continuous 1000 A, up to 1500 A, CT ratio 10:1)
Interface • 9440 CONNECTION CABLE
Printers • 9442 PRINTER (with 1 roll of thermally sensitized paper sup-
Transport
case
Other
peripherals
Software • SF1001 POWER LOGGER VIEWER (PC application software)
• 9441 CONNECTION CABLE (for D/A output, 3169-21 only)
• 9612 RS-232C CABLE (for PC)
plied, with battery pack)
• 9443-01 AC ADAPTER (for printers) for Japan
• 9443-02 AC ADAPTER (for printers) for EU
• 1196 RECORDING PAPER (25 m, 10 rolls)
• 9720-01 CARRYING CASE
sensor are also housed in the case.)
(9720 CARRYING CASE)
• 9626 PC Card 32 MB (32 MB compact Flash card + adapter)
• 9627 PC Card 64 MB (64 MB compact Flash card + adapter)
• 9726 PC Card 128 MB (128 MB compact Flash card + adapter)
• 9727 PC Card 256 MB (256 MB compact Flash card + adapter)
• 9728 PC Card 512 MB (512 MB compact Flash card + adapter)
• 9804-01 Magnet Adapter (one red, for changing the voltage cord
tips, the diameter of the tip is
• 9804
-02 Magnet Adapter (one black, for changing the voltage
cord tips, the diameter of the tip is
• 9625 POWER MEASUREMENT SUPPORT SOFTWARE
(PC application software)
(for external input/output terminal)
(The voltage cords and clamp-on
11 mm)
11 mm)
Before using the 3169-20/21
• Before using the product the first time, verify that it ope rate s normally to ensure that the no damage occurred during storage or
shipping. If you find any damage, contact your dealer or Hioki
representative.
• Before using the product, make sure that the insulation on the
L9438-53 Voltage Cord is undamaged and that no bare conductors are improperly exposed. Using the product in such conditions could cause an electric shock, so contact your dealer or
Hioki representative for repair.
Shipping precautions
Use the original packing materials when reshipping the product, if
possible.
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4
Safety Notes
This manual contains information and warnings essential for safe
operation of the product and for maintaining it in safe operating
condition. Before using the product, be sure to carefully read the
following safety notes.
This product is designed to comply with IEC 61010 Safety
Standards, and has been thoroughly tested for safety prior to
shipment. However, mishandling during use could result in
injury or death, as well as damage to the product. Using the
product in a way not described in this manual may negate
the provided safety features.
Be certain that you understand the instructions and precautions in the manual before use. We disclaim any responsibility for accidents or injuries not resulting directly from
product defects.
Safety Symbols
In the manual, the symbol indicates particularly
important information that the user should read before
using the product.
The symbol printed on the product indicates that the
user should refer to a corresponding topic in the manual
(marked with the
function.
Indicates AC (Alternating Current).
symbol) before using the relevant
Indicates the ON side of the power switch.
Indicates the OFF side of the power switch.
The following symbols in this manual indicate the relative importance of cautions and warnings.
Other Symbols
5
Indicates that incorrect operation presents an
extreme hazard that could result in serious injury or
death to the user.
Indicates that incorrect operation presents a significant hazard that could result in serious injury or
death to the user.
Indicates that incorrect operation presents a possibility of injury to the user or damage to the product.
Advisory items related to performance or correct
operation of the product.
Indicates the prohibited action.
Indicates the reference.
Indicates quick references for operation and reme-
dies for troubleshooting.
Accuracy
*
We define measurement tolerances in terms of f.s. (full scale), rdg.
(reading) and dgt. (digit) values, with the following meanings:
f.s. (maximum display value or scale length)
The maximum displayable value or the full length of the scale.
This is usually the maximum value of the currently selected range.
rdg. (reading or displayed value)
The value currently being measured and indicated on the measuring product.
dgt. (resolution)
The smallest displayable unit on a digital measuring product, i.e.,
the input value that causes the digital display to show a "1".
Indicates terminology explained at the bottom of
the page.
6
Measurement categories
This product complies with CAT III safety requirements.
To ensure safe operation of measurement product, IEC 61010
establishes safety standards for various electrical environments,
categorized as CAT II to CAT IV, and called measurement categories.
CAT II Primary electrical circuits in equipment connected to an AC
CAT III Primary electrical circuits of heavy equipment (fixed installa-
CAT IV The circuit f rom the service drop to the service entrance, and to
electrical outlet by a power cord (portable tools, household appliances, etc.)
CAT II covers directly measuring electrical outlet receptacles.
tions) connected directly to the distribution panel, and feeders
from the distribution panel to outlets.
the power meter and primary overcurrent protection device (distribution panel).
Using a measurement product in an environment designated with a
higher-numbered category than that for which the product is rated
could result in a severe accident, and must be carefully avoided.
Use of a measurement instrument that is not CAT-rated in CAT II to
CAT IV measurement applications could result in a severe accident, and must be carefully avoided.
Usage Notes
AC 100 V
to 240 V
Do not touch with
bare hands.
Do not get wet.
Check the voltage.
Follow these precautions to ensure safe operation and to obtain
the full benefits of the various functions.
To avoid electric shock
• Do not allow the product to get wet, and do not use it when
your hands are wet.
• When measuring live lines, wear appropriate protective
gear, such as insulated rubber gloves, boots and a safety
helmet.
• Before turning the product on, make sure the source voltage matches that indicated on the product's power connector. Connection to an improper supply voltage may damage
the product and present an electrical hazard.
• To avoid electrical accidents and to maintain the safety
specifications of this product, connect the power cord only
to a 3-contact (two-conductor + ground) outlet.
• Do not use the product where it may be exposed to corrosive or combustible gases. The product may be damaged
or cause an explosion.
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8
Setting up the 3169-20/21
Avoid the following:
Direct
sunlight
High temperature
High humidity
Dust
Electomagnetic
radiation
Corrosive or
explosive gases
Handling this device
• This product is designed for indoor use, and operates reliably
from 0°C to 40°C.
• Do not store or use the product where it could be exposed to
direct sunlight, high temperature or humidity, or condensation.
Under such conditions, the product may be damaged and insulation may deteriorate so that it no longer meets specifications.
• This product is not designed to be entirely water- or dust-proof.
To avoid damage, do not use it in a wet or dusty environment.
• Do not use the product near a device that generates a strong
electromagnetic field or electrostatic charge, as these may
cause erroneous measurements.
This product may cause interference if used in residential areas.
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.
• To avoid damage to the product, protect it from vibration or
shock during transport and handling, and be especially careful to
avoid dropping.
• Be careful to avoid dropping the clamps or otherwise subjecting
them to mechanical shock, which could damage the mating su rfaces of the core and adversely affect measurement.
Connect the clamp-on sensors or voltage cords to the instru-
Using the clamp-on sensors and voltage cords
ment first, and then to the active lines to be measured.
Observe the following to avoid electric shock and short circuits.
• To avoid short circuits and potentially life-threatening hazards, never attach the clamp to a circuit that operates at
more than the maximum rated voltage to earth (9660: 300
VAC, 9661: 600 VAC, 9667/CT9667: 1000 VAC, 9669: 600
VAC, 9694: 300 VAC, 9695-02/03: 300 VAC), or over bare
conductors.
• Clamp sensor and voltage cord should only be connected
to the secondary side of a breaker, so the breaker can prevent an accident if a short circuit occurs. Connections
should never be made to the primary side of a breaker,
because unrestricted current flow could cause a serious
accident if a short circuit occurs.
• Do not allow the voltage cord clips to touch two wires at the
same time. Never touch the edge of the metal clips.
• Use only the supplied L9438-53 Voltage Cord to connect the
product input terminals to the circuit to be tested.
• To prevent an electric shock accident, confirm that the
white or red portion (insulation layer) inside the cable of
voltage cord is not exposed. If a color inside the cable is
exposed, do not use the cable.
• When the clamp sensor is opened, do not allow the metal
part of the clamp to touch any exposed metal or to short
across two lines, and do not use over bare conductors.
• The current input terminals of the 3169-20/21 are not insulated. To avoid the risk of electric shock, only use the specified optional clamp-on sensor.
9
10
Handling the cords
Input
• Keep in mind that, in some cases, conductors to be measured
may be hot.
• To avoid damaging the power cord, grasp the plug, not the cord,
when unplugging the cord from the power outlet.
• T o avoid damaging the voltage cords or clamp sensor cables, do
not bend or pull near their ends.
• Avoid stepping on or pinching the cable, which could damage
the cable insulation.
• Keep the cables well away from heat source s, as bare conductors could be exposed if the insulation melts.
• When disconnecting the BNC connector, be sure to release the
lock before pulling off the connector. Forcibly pulling the connector without releasing the lock, or pulling on the cable, can damage the connector.
• Failure to fasten the connectors properly may result is sub-specification performance or damage to the equipment.
Maximum input voltage and maximum rated voltage
to earth
• The maximum input voltage of the product is 780 Vrms,
1103 V peak. Do not measure the voltage exceeding that. It
causes the personal injury as well as damages the product.
• The maximum rated voltage to earth of the product is 600
Vrms. Do not measure the voltage to earth exceeding that.
It causes the personal injury as well as damages the product.
• The maximum rated voltage to earth of clamp sensor
depends on the type of clamp sensor used.
To avoid electric shock, refer to the instruction manual of a
clamp sensor used.
11
Using VT(PT) and CT
Measurement values
• To avoid damage to the product, do not short-circuit the output
terminal and do not input voltage to the output terminal.
• Voltage input terminals U
minal and are not insulated. To avoid the risk of electric shock,
do not touch the terminals.
• Note that the product may be damaged if current or voltage
exceeding the selected measurement range is applied for a long
time
• When the power is turned off, do not apply voltage or current to
the voltage input terminals or clamp sensor. Doing so may damage the product.
• To prevent damage to the instrument and sensor, never connect
or disconnect a sensor while the power is on, or while the sensor
is clamped around a conductor.
• When the voltage or current for the power line being measured
exceeds the maximum input for this device, use an external
VT(PT) or CT.
• When using an external VT(PT) or CT, make sure you use a
device with a minimal phase difference. By setting the VT(PT)
or CT ratio, you can read measurement values directly.
, U2, and U3 are common to the N ter-
1
• To ensure measurements are precise, warm up the device for
at least 30 minutes after plugging it in.
• This device is designed to measure commercial power lines
with a frequency of 50 or 60 Hz. It cannot measure power lines
of other frequencies or power lines where the waveforms are
controlled using an inverter.
• This device cannot measure power lines with superposed
direct current.
• This device uses algorithms to measure values for input voltage and current waveforms using (see the specifications). On
devices using different operation principles or algorithms differ,
differences in measurement values may result.
• The voltage and current measurements will be reduced to zero
when inputs are less than 0.4% of the measurement range.
When the voltage or current is zero, the active power, reactive
power, and apparent power measurements will be reduced to
zero and the power factor will be treated as invalid data.
12
1.1 Product Overview
Overview 1
1.1 Product Overview
The 3169-20/21 CLAMP ON POWER HiTESTER is a clamp-on
wattmeter designed to measure lines ranging from a single-phase line to
a three-phase 4-wire line.
The 3169-20/21 can measure demand and harmonics, which are
important for power management, as well as such basic measurements
of voltage, current, power, power factor, and integrated power (watthours).
The 3169-20/21 supports extended data acquisition and automated
measurement, thanks to the use of the PC card and RS-232C interface.
This makes the 3169-20/21 suitable for power measurement at
commercial frequencies involved in the power maintenance and
management of a building or factory.
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1
1.1 Product Overview
14
1.2 Features
1.2 Features
Safe design
Designed to comply with safety standard
Supports a variety of power lines
Measures single-phase 2-wire, single-phase 3-wire, three-phase 3wire and three-phase 4-wire systems.
Capable of measuring multiple circuits of the same voltage system
(same transformer) using one 3169-20/21 unit.
•
Single-phase 2-wire: 4 circuits
•
Single-phase 3-wire: 2 circuits
Three-phase 3-wire: 2 circuits
•
Detection of Incorrect Connection
On the wiring check screen, you can check whether the phase sequence
is correct, voltage cord is connected, and whether the clamp-on sensor
is connected in reverse to avoid incorrect connection.
Simultaneous Display of Various Measurements
Measurements of voltage, current, active/reactive/apparent power,
power factor, and frequency are displayed simultaneously.
EN61010-1
.
Independent Integration for Differe nt Polarities
Capable of integrating different polarities independently, such as active
power consumption/regeneration and reactive power lag/lead.
Three-Voltage, Three-Current Measurement
Capable of measuring 3-voltage, 3-current when the 3169-20/21 is
connected to a three-phase, 3-wire line.
Harmonic Measurement
Capable of measuring the harmonics of a power line simultaneou sly with
integrated power (watt-hour) measurement.
Maximum, Minimum, and Average Measurement
Capable of measuring the maximum, minimum, and average values of
the voltage, current, and power calculated for each waveform (per
interval.)
PC Card Interface
Saves measurement data on a PC card for an extended period. The
settings can be saved or read out using the PC card.
15
1.2 Features
RS-232C Interface
The 3169-20/21 includes an RS-232C interface as standard equipment.
The instrument is connected to a PC by the interface, and is used for
automated measurement.
High-Speed D/A Output (3169-21 only)
The 3169-21 features D/A output for 4-channel, high-speed analog
output.
Compact and light weight
The compact size and light weight allows installation even in limited space, such as in a cubicle.
A choice of optional clamp-on sensors
The following clamp-on sensors are compatible with the 3169-20/21.
9660 CLAMP ON SENSOR (100 A rms rating)
9661 CLAMP ON SENSOR (500 A rms rating)
9667 FLEXIBLE CLAMP ON SENSOR (5000 A rms rating)
CT9667 FLEXIBLE CLAMP ON SENSOR (5000 A rms rating)
9669 CLAMP ON SENSOR (1000 A rms rating)
9694 CLAMP ON SENSOR (5 Arms rating)
9695-02 CLAMP ON SENOSR (50 Arms rating)
9695-03 CLAMP ON SENSOR (100 Arms rating)
1
1.2 Features
16
1.2 Features
Parts Names 2
Recorder, logger
4 "Connecting to Lines to be Measured" (page 37)
RS-232C
D/A output
(3169-21)
Printer
PC
9 "Using the Instrument with
a Computer" (page 149)
3 "Measurement Prep-
arations" (page 25)
*: The RS-232C is connected to a printer or PC.
EXT I/O
10 "Using the External Input/
Output Terminal" (page 155)
8 "Using a Printer"
(page 141)
11 "Using D/A Output (3169-21 only)"
(page 161)
7.2 "Using a PC Card"
(page 121)
PC card
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1
2
18
Display
5.7-inch STN LCD
Function (F1-F5) keys
Selects or switches the screens and
setting items.
Cursor key
These keys move the cursor
on the screen.
Front Panel
2.1 Instrument Labels and Functions
2.1 Instrument Labels and Functions
MEASURE key
Switches to a screen that displays measurements.
SET UP key
Switches to a screen that displays settings.
FILE key
Used to work on files.
I RANGE key
Sets the current measurement range for the circuit
to be measured on-screen.
U RANGE key
Sets the voltage measurement range.
SAVE key
Enables the manual saving of measurement data
on the PC card or in internal memory. Manual saving is not possible during time-series measurement.
COPY key
Outputs screen image data to the PC card, internal
memory, or a printer.
START/STOP key
Starts or stops time-series measurements including
integration measurement.
START/STOP LED
Flashes in green while the instrument is standing by
for time-series measurement, and lights in green
while the instrument is performing time-series measurement.
Front Panel Enhanced View
19
2.1 Instrument Labels and Functions
1
2
2.1 Instrument Labels and Functions
20
Current Input terminals
Connect an optional clamp-on sensor.
Voltage Input terminals
Connect the supplied L9438-53 Voltage Cord.
CH1 CH2 CH3 CH4
Black Red Yellow Blue
NU1U2U
3
Top Panel
AC Power Inlet
Connects the power cord. The
supply voltage ranges from 100
V to 240 V.
POWER switch
Turns the instrument on and off.
: Power OFF
: Power ON
Contrast Control Knob
(CONTRAST)
Adjusts the contrast of the screen.
KEY LOCK switch
Sliding this switch in the direction of the arrow disables all key operation except the
POWER switch.
Left Panel
2.1 Instrument Labels and Functions
2.1 Instrument Labels and Functions
PC Card slot
A PC Card can be
inserted here.
Eject button
Press this button to eject a PC
Card from the slot.
RS-232C Interface connector
Connects to a PC or printer using an
RS-232C cable.
External Input/Output Terminal
(EXT I/O)
Connects the optional 9440 connection cable. Used
to start and stop time-series measurement, and control data storage on the PC card.
D/A Output Terminal
(D/A OUT)
Installed in the 3169-21
only. Conne cts the supplied
9441 connection cable.
Used for analog output.
Right Panel
Number plate
Contains manufacturer’s ID
numbers. Please do not remove, as this information is
reguired for product management.
Rear Panel
21
1
2
2.1 Instrument Labels and Functions
22
Measurement screen
Setting screen
MAIN
POWER
INTEGRATE
DEMAND
ZOOM
HARMONIC LIST
HARMONIC GRAPH
WAVEFORM
WIRING CHECK
WIRING DIAGRAM
MEASUREMENT
DATA OUTPUT
SAVE, PRINT ITEMS
SYSTEM
D/A OUTPUT
(3169-21 only)
INTERNAL SETTINGS
INTERNAL MEMORY
PC CARD
FIRMWARE UPDATE
File screen
2.2 Screen Names and Display Elements
2.2 Screen Names and Display Elements
2.2.1 Screen Configuration
The screens are divided into three basic types: measurement
screens, setting screens, and file screens. Each screen is selected
using three panel keys:
MEASURE, SET UP, and FILE.
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