Hioki 3290 Instruction Manual
INSTRUCTION MANUAL
3290
CLAMP ON
AC/DC HiTESTER
i
Contents
Introduction .............................................................1
Inspection ............................................................... 2
Safety Notes ...........................................................3
Usage Notes........................................................... 6
Organization of This Manual .................................10
Chapter 1 Overview 13
1.1 Product Overv iew ........................... ......13
1.2 Features ................................................13
1.3 Parts Names and Functions .................16
1.3.1 3290
CLAMP ON AC/DC HiTESTER ........ 16
1.3.2 9691, 9692, 9693
1.4 Flowchart Of Key Operations ................25
1.4.1 Current Measurements Mode .......... 25
1.4.2 Frequency Mode ..............................28
1.5 Modes ...................................................29
Chapter 2
Basic Measure ment Procedures 35
2.1 DC Measurement (DC A) ......................36
2.2 AC Measurement (AC A) ......................38
2.3 Peak Measurement In AC+DC A Mode 39
CLAMP ON AC/DC SENSOR .......... 24
ii
Chapter 3 Measurem en t Proc edu re s 43
3.1 Preparations ..........................................43
3.2 Current Measurement ........................... 45
3.2.1 Measuring DC Current (DC A) ..........46
3.2.2 Measuring AC Current (AC A) ..........47
3.2.3 Measuring AC + DC Current (AC+DC A)
...........................................................49
3.2.4 Bar Graph .........................................50
3.2.5 Peak Measur ement ...........................51
3.2.6 Output Function
(Current Measu rem en t) ............... ..... .53
3.3 Frequency Measurement ......................57
3.3.1 Frequency Measurement ..................57
3.3.2 Output Function
(Frequency Measurement) ................58
3.4 Auto-Zero Adjustment Function .............60
3.5 Data Hold Function ................................61
3.6 Changing the Screen Update Rate .......61
3.6.1 SLOW Mode ......................... ...... ..... .61
3.6.2 FAST Mode .......................................62
3.7 Recording Function ...............................63
3.7.1 Measurement Reading ......................63
3.7.2 Display of Elapsed Time ...................64
3.7.3 Interrupting the Recording Function ..64
3.7.4 Clearing Recorded Data ...................64
3.7.5 Disabling the Recording Function .....65
3.8 Measurement Method
Switching Function ................................66
3.8.1 RMS Measurement ........................... 66
3.8.2 MEAN Measurement .........................66
3.9 Measurement Response Speed
Switching Function ................................67
iii
3.9.1 NORMAL Mode ................................67
3.9.2 SLOW Mode ............................... ......67
3.9.3 FAST Mode ...................................... 67
3.10 Filter Function ....................................... 70
3.11 Ke y Loc k Fun cti on ................................71
3.12 Bar Graph Enlargement Function .........71
3.13 Battery Check Function ........................72
3.14 MON Output Filter Function ..................73
3.15 Auto Power Off Function .......................74
3.16 Setting the Save Function .....................75
3.17 Battery-Low Warning ............................76
3.18 Beep Tone ............................................77
Chapter 4 Batteries Replacement 79
Chapter 5 AC Adapter 81
Chapter 6 Attaching the Strap 83
Chapter 7 Specifications 85
7.1 Measurement Specifications .................85
7.2 General Specifications ..........................88
Chapter 8 Clamp Sensor Specifications 93
8.1 9691 CLAMP ON AC/DC SENSOR ......93
8.2 9692 CLAMP ON AC/DC SENSOR ......96
8.3 9693 CLAMP ON AC/DC SENSOR ......99
iv
Chapter 9 Carrying Case 103
Chapter 10 Troubleshooting 105
Chapter 11 After - sale Servi ce 111
11.1 Cleaning ..............................................111
11.2 Service ................................................111
Chapter 12 Appe ndix 113
12.1 Combined Accuracy ............................113
12.1.1 Accuracy Tables .............................113
12.1.2 Method of Calculation .....................118
12.2 Use of Intermediate Cable ...................119
1
Introduction
Thank you for purchasing the HIOKI "3290 CLAMP ON
AC/DC HiTESTER". To obtain maximum performance
from the product, please read this manual first, and keep it
handy for future refer ence.
This manual describes the operation of the 3290 when
used with the 9691, 9692, or 9693 CLAMP ON AC/DC
SENSOR.
Request
We have tried to bring this manual as close to perfection
as we could achieve. If perchance you find any unclear
portions, mistakes, omissions, or the like, we would be
most obliged if you could please notify us of them via any
HIOKI agent, or directly.
2
Inspection
• 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.
• Before using the product the first time, verify that it
operates normally to ensure that the no damage
occurred during storage or shipping. If you find any
damage, contact your dealer or Hioki representative.
Accessories
Strap .........................................................................................................1
LR6 Manganese battery............................................................................4
Instruction Manual.....................................................................................1
Options
9400 CARRYING CASE
9094 OUTPUT CORD
9445-02 AC ADAPTER (SA10-0910N, SINO-AMERICAN)
9445-03 AC ADAPTER (EU) (SA10-0910G, SINO-AMERICAN)
9691 CLAMP ON AC/DC SENSOR
9692 CLAMP ON AC/DC SENSOR
9693 CLAMP ON AC/DC SENSOR
3
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 conform to 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. 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 symbol) before
using the relevant function.
Indicates a double-insulated device.
Indicates DC (Direct Current).
Indicates AC (Alternating Current).
Indicates both DC (Direct Current) and AC (Alternating Current).
Indicates that the instrument may be connected to
or disconnected from a live circuit.
4
The following symbols in this manual indicate the relative
importance of cautions and warnings.
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 t he user or damage to the product.
Advisory items related to performance or correct
operation of the product.
Other Symbols
Indicates the prohibited action
Accuracy
We define measurement tolerances in terms of f.s. (full
scale), rdg. (reading) and dgt. (digit) values, with the
following meanings:
(maximum display value or scale length)
f.s.
rdg.
The maximum displayable value or the full length
of the scale. This is usually the maximum value of
the currently selected range.
(reading or displayed value)
The value currently being measured and indicated
on the measuring product.
(resolution)
dgt.
The smallest displayable unit on a digital measuring product, i.e., the input value that causes the
digital display to show a "1".
5
Measurement categories (Overvoltage categories)
This product complies with CATIII (600 V), CATII (1000 V)
safety requirements.
To ensure safe operation of measurement products, I
61010 establishes safety standards for various electrical
environments, categorized as CAT I to CAT IV, and called
measurement categories. These are defined as follows.
EC
CAT I
CAT II
CAT III
CAT IV
Secondary electrical circuits connected to an AC electrical outlet through a transformer or similar device.
Primary electrical circuits in equipment connected to an
AC electrical outlet by a power cord (portable tools,
household appliances, etc.)
Primary electrical circuits of heavy equipment (fixed installations) connected directly to the distribution panel,
and feeders from the distribution panel to outlets.
The circuit from the service drop to the service entrance,
and to the power meter and primary overcurrent
protection device (distribution panel).
Higher-numbered categories correspond to electrical
environments with greater momentary energy. So a
measurement device designed for CAT III environments
can endure greater momentary energy than a device
designed for CAT II.
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 careful ly avo ided .
Never use a CAT I measuring iproduct in CAT II, III, or IV
environments.
The measurement categories comply with the
Overvoltage Categories of the IEC60664 Standards
6
Usage Notes
Follow these precautions to ensure safe operation and to
obtain the full benefits of the various functions.
• To avoid short circuits and potentially life-
threatening hazards, never attach the
product to a circuit that operates at more
than the 600V, or over bare conductors.
• Clamp sensor 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 curr ent flo w could
cause a serious accident if a short circuit
occurs.
• Use only the specified Model 9445-02 AC
ADAPTER (SA10-0910N, SINO-AMERICAN) or 9445-03 (for EU) AC ADAPTER
(SA10-0910G, SINO-AMERICAN).
AC adapter input voltage range is 100 to
240 VAC (with ±10% stability ) at 50/60 Hz.
To avoid electr ica l h az ards an d da ma ge to
the product, do not apply voltage outside of
this range.
• To avoid electric shock, do not allow the
product to get wet, and do not use it when
your hands are wet.
• Do not use the product where it may be
exposed to corrosive or combustible
gases. The product may be damaged or
cause an explosion.
7
• The top part of the clamp sensor above the
barrier (including the clamps, but not the
lever) is provided with double insulation to
ensure safety. Be careful not to drop the
sensor or othe rwis e s ub jec t i t to im p act. A
damag ed sens or may result in el ectric
shock during measurement. In case of
sensor damage, contact us immediately for
repa ir or disc ard the dam ag ed se nso r to
avoid su bse qu ent use .
• To avoid damage to the product, do not
exceed the maximum input current rating,
which depends on the frequency of the
current being measured (see Chapter 8
Clamp Sensor Specifications - Frequencydependent del eti on cha r ac teri sti cs) Be
careful about the evolution of heat, when
the input frequ enc y is high.
• To avoid electri c s ho ck when rep lac in g th e
batteries, first disconnect the clamp from
the object to be measu red.
• After replacing the batteries, replace the
cover and screws before usi ng the
product.
• Do not mix old and new batteries, or
different types of batteries. Also, be careful
to observe battery polarity during
installation. Otherwise, poor performance
or damage from battery leakage could
result.
• To avoid the possibility of explosion, do not
short circuit, disassemble or incinerate
batteries.
• Handle and dispose of batteries in
accordance with local regulations.
8
• Do not use the product when the battery is
depleted ( lights on the LCD). When
is on, accuracy and other specifications cannot
be guaranteed.
• For the inside memory prot ection, make sure
the power is turned off before plugging in or
unplugging the AC adapter.
• Adjust ments and repairs should be made only
by technically qualified personnel.
• If the protective functions of the product are
damaged, either remove it from service or mark
it clearly so that others do not use it inadvertently.
• To avoid corrosion from batter y leakage, remo ve
the batteries from the product if it is to be stored
for a long time.
9
Observe the following to avoid damage to the
-
st
-
n
n
product.
• Installation and Operating Environment
Between 0°C and 40°C; 80% RH or less;
indoors only.
Direct
sunlight
High temper
ature, high
humidity, du
Electromag
etic radiatio
• 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.
• To avoid damage to the product, protect it from
vibration or shock during transport and handling,
and be especially careful to avoid dropping.
Impact,
dropping
• Accurate measurement may be impossible in the
• To clean the product, wipe it gently with a soft
presence of strong magnetic fields, such as near
transformers and high-current conductors, or in
the presence of strong electromagnetic fields
such as near radio transmitters.
cloth moistened with water or mild detergent.
Never use solvents such as benzene, alcohol,
acetone, ether , ketones, thinners or gasoline, as
they can deform and discolor the case.
10
Organization of This Manual
Chapter 1 Product Ov erview
Provides an overview of the product and describes the
parts and functions.
Chapter 2 Basic Measurement Procedure
Describes the basic measurement procedure for quick
reference and the peak measurement procedure in DC
current (DC A) mode, AC current (AC A) mode, and
AC+DC A mode.
Chapter 3 Measurement Procedure
Describes the measurement procedure for the 3290
CLAMP ON AC/DC HiTESTER when combined with the
9691, 9692, or 9693 CLAMP ON AC/DC SENSOR.
Chapter 4 Battery Replacement
Explains how to replace the battery used for the 3290
Clamp On AC/DC HiTESTER.
Chapter 5 AC Adapter
Explains how to use the 9445-02 AC Adapter (optional).
Chapter 6 Attaching the Strap
Explains how to attach the strap.
Chapter 7 Specifications
Lists the specifications of the 3290 CLAMP ON AC/DC
HiTESTER.
Chapter 8 Clamp Sensor Specifications
Lists the specifications of the 9691, 9692, and 9693
CLAMP ON AC/DC SENSORs.
Chapter 9 Carrying Case
Explains how to use the 9400 CARRYING CASE
(optional).
11
Chapter 10 Troubleshooting
Lists common symptoms that may indicate a malfunction.
If you encounter a problem, be sure to read this chapter
before requesting repair.
Chapter 11 Service
Describes our customer support service.
Chapter 12 Appendix
• Provides the accuracy table and explains how to
calculate accuracy for the 3290 CLAMP ON AC/
DC HiTESTER when combined with the 9691,
9692, or 9693 CLAMP ON AC/DC SENSOR.
• Describes how to use the intermediate cable.
12
13
Chapter 1 Overview
Overview Chapter 1
1.1 Product Overview
The 3290 CLAMP ON AC/DC HiTESTER is used with the
9691, 9692, or 9693 CLAMP ON AC/DC SENSOR.
These sensors are interchangeable and any model can
be used with the 3290. The 3290 automatically detects
the sensor connected and sets up the appropriate range.
When combined with the 9691, 9692, or 9693 Sensor, the
3290 HiTESTER can perform DC, AC, and AC+DC
measurement of a live power line. Various functions are
available (using the SHIFT key) to make the 3290 suitable
for various current measurement applications. The 3290
is also equipped with two output terminals to enable a
variety of advanced measurements, such as simultaneous
output of both monitor and rms record. Moreover, the
3290 can operate using battery power or the AC adapter
(for long-term measurement use).
1.2 Features
The 3290 has the following features:
Multif unc tion Microcom puter
The 3290 both compact and multifunctional thanks to the
built-in microcomputer and use of the SHIFT key.
Large-Screen LCD
The large-screen LCD employed is easy to read.
Clamp Sensor
The 3290 is compatible with three clamp-on AC/DC
sensors (9691, 9692, and 9693) having different ratings.
Because the 3290 automatically detects the sensor
connected, you need not edit the setting each time you
change the sensor.
Chapter 1 Overview
14
Multif unc tion Microcom puter
The 3290 both compact and multifunctional thanks to the
built-in microcomputer and use of the SHIFT key.
Large-Screen LCD
The large-screen LCD employed is easy to read.
Clamp Sensor
The 3290 is compatible with three clamp-on AC/DC
sensors (9691, 9692, and 9693) having different ratings.
Because the 3290 automatically detects the sensor
connected, you need not edit the setting each time you
change the sensor.
Two Output Terminals
Two signals are output simultaneously from among the
four following: current (REC = record and MON =
monitor), current frequency (REC = record), and low
battery warning signal.
• Current monitor & low battery warning signal
• Current monitor & current record
• Current record & low battery warning signal
• DC component & AC component (AC/DC separate output)
• Frequency record & current record
Method of measurement
In AC A mode, you can select either the true rms (RMS)
or average rectified rms indication (MEAN).
Measurement Response Speed
For RMS measurement, you can select a response speed
from FAST, NORMAL, or SLOW.
Low-frequency Current Measurement
In AC+DC A mode, you can measu re curr en t from 1 Hz
when the measurement response speed is set to SLOW.
Filter Function
This function turns on and off a low-pass filter (LPF) of
approximately 500 Hz.
Setting Save Function
This function saves the current measurement conditions
so that settings are retained even after power is turned
OFF.
Key Lock Function
This locks all keys including the POWER key (except the
keys used to unlock).
15
Chapter 1 Overview
AC+DC Measurement
The 3290 measures AC superimposed on DC, half-wave
rectified, and full-wave rectified.
Peak Measurement
The peak hold current can also be measured.
REC Function
You can select whether the maximum or minimum
measurement value is displayed.
Dual-power supply
The 3290 run s on either battery power or an AC power
source.
Dustproof Cap
The dustproof cap is provided for use in a dusty
environment.
Intermediate Cable
In case the 9691, 9692, or 9693 sensor cable (about 2 m
long) is too short, an interme diate cable can be used to
extend connection length. Insert the intermediate cable
between the 3290 and the sensor cable.
Chapter 1 Overview
16
5,
1.3 Parts Names and Functions
1.3.1 3290 CLAMP ON AC/DC HiTESTER
21
24
22
23
27
20
14
6,
11
7,15
8,16
9,17
10,18
1
28
19
4,
13
3,
12
2
17
26
25
Chapter 1 Overview
Keys for Basic Measurement
1. POWER Key
• Turns power ON/OFF.
• Holding down the CLEAR key and turning power
on initializes the setting save function and
restores the default settings.
• Holding down the HOLD key and turning power
on disables the auto power-off function.
• Holding down the PEAK/Hz key and turning
power on turns off the buzzer.
2. SHIFT Key
• Pressing this key causes to light, indicating
that the additional function (in blue letters) allo-
cated to each key is available. To turn off,
press the SHIFT key again.
• Some keys may be locked when is on.
Chapter 1 Overview
18
3. MODE Key
• Selects the current measurement mode.
4. RANGE Key
• Selects auto range or manual range.
• Selects a measurement range when manual
range is selected.
• The current ranges for the 9691 and 9692 are 20
A and 200 A; the ranges for the 9693 are 200 A
and 2000 A. The frequency ranges are 10 Hz,
100 Hz, and 1000 Hz.
5. OUTPUT Key
• Sets the output (for current and frequency measurement).
Two outputs are available. The settings available for each current measurement mode are
fixed.
AUTO
AC ADC A
L
M
(Hz only)
AC+DC A
H
• Disables the auto power-off function.
6. CLEAR Key
• Clears data to “0” during peak measurement.
• Clears data to “0” during activation of the recording function.
• Holding down the CLEAR key and turning power
on initializes the setting save function and
restores the default settings.
7. HOLD Key
• Suspends or deactivates the screen-updating
function. (See 15 under “Keys for Advanced
Measurement” for details of the key lock function.)
• Holding down the HOLD key and turning power
on disables the auto power-off function.
19
8. PEAK/Hz Key
• PEAK performs peak measurement of waveforms (peak hold).
• Hz performs frequency measurement (in AC A
mode).
• Holding down the PEAK/Hz key and turning
power on turns off the buzzer.
9. MAX/MIN Key
• Activates the recording function and displays the
maximum value (MAX), minimum value (MIN),
mean value of both maximum & minimum values
(AVE), and elapsed time (TIME).
• Pressing this key immediately activates the
recording function.
• MAX displays the maximum value of measurements taken after the recording function is activated.
Chapter 1 Overview
• MIN displays the minimum value of measurements taken after the recording function is activated.
• AVE displays the mean value of the maximum
and minimum values measured after the recording function is activated.
• TIME displays the time elapsed after the recording function is activated.
• The auto power-off function is deactivated.
10. SAMPL Key
• Selects a screen-updating rate from NORMAL
(twice/sec.), SLOW (once/3 sec. ), or FAST (4
times/sec.). Each time this key is pressed, the
rate changes in the order above.
MINMAX
TIMEAVE
Measurement
value
• The rate is usually set to NORMAL. (Note that
• SLOW decelerates the speed of updating on-
• FAST accelerates the speed of updating on-
there is no indication for NORMAL.)
screen measurement (with SLOW on).
screen measurement (with FAST on).
Chapter 1 Overview
20
• During RMS measurement in AC mode or when
in AC+DC mode (with RMS on), the measurement response speed changes according to the
screen-updating rate (SLOW, FAST, or NORMAL).
• Y ou can only change the measurement response
speed. For details, see 18 under “Keys for
Advanced Measurement.”
NORMAL
SLOW
FAST
11. 0 ADJ Key (SHIFT CLEAR Keys)
• Performs auto zero adjustment in DC A or
AC+DC A mode.
Keys for Advanced Measurement
12. RMS/MEAN Key (SHIFT MODE Keys)
• Selects the true rms measurement (RMS) or
average rectified rms indication (MEAN) in AC A
mode. RMS provides accurate measurement of
distorted waveforms. MEAN only provides accurate measurement of undistorted sine waves.
13. B.GRAPH Key (SHIFT RANGE Keys)
• Enlarges the range of a bar graph.
14. MON.FL Key (SHIFT OUTPUT Keys)
• Turns on a low-pass filter of approx. 1 Hz when
MON is selected for OUT1 in DC A mode.
• Turns on a low-pass filter of approx. 1 Hz when
MON is selected for OUT1 (REC for OUT2) in
AC+DC A mode. This enables separate output
of the DC component (OUT1) and AC component (OUT2). (The value of the AC component is
indicated on the LCD.)
21
Chapter 1 Overview
15. LOCK Key (SHIFT HOLD Keys)
• Locks all keys including the POWER key.
• To unlock, press the same keys again (SHIFT
HOLD keys).
16. FILTER Key (SHIFT PEAK/Hz Keys)
• Turns on a low-pass filter of approx. 500 Hz in
AC A or AC+DC A mode .
• To turn the filter off, press the same keys again
(SHIFT PEAK/H z key s).
17. B.CHECK Key (SHIFT MAX/MIN Keys)
• Indicates remaining battery power. When power
is depleted to 0%, the low battery warning ( )
goes on.
18. RESPONSE Key (SHIFT SAMPL Keys)
Display
19. LCD
• Selects a measurement response speed independently from the screen-updating rate when
RMS is selected in AC A mode or when AC+DC
mode is selected.
• Press the SAMPL key to return to the measurement response speed that matches the selected
screen-updating rate.
The letter of LCD is clearest, when it sees from the front
side.
Chapter 1 Overview
22
Direct Current (DC)
Alternating Current (AC)
Alternating Current and Direct Current (AC+DC)
Auto zero adjustment is active.
Low battery war ning
OUT1 Setting of OUT1
OUT2 Setting of OUT2
Data hold function
MON
MON.FL
Monitor is active.
1 Hz filter for monitor is active.
REC Record is active.
Auto power-off is active.
AUTO Auto-range
L Current/frequency low range
M Frequency mid range
H Current/frequency high range
FAST Screen-updating 4 times/sec.
SLOW Screen updating approx. once/3 sec.
FILTER 500 Hz filter is active.
MAX Maximum value
MIN Mini mum value
AVE Average value
TIME Elapsed time
MEAN Average rectified rms indication
RMS True root mean squar e value
PEAK Wave peak value
Hz Frequency
Key lock is active.P
A Current
hour 100 hours/segment (bar graph)
Input over (bar graph)
SHIFT
23
Chapter 1 Overview
Parts
20. Sensor Connector (SENSOR)
Connect the 9691, 9692, or 9693 CLAMP ON AC/DC
SENSOR to this connector.
21. AC Adapter Connection Terminal
Connect the 9445-02 AC ADAPTER (optional) to this
terminal when not using the battery or for long-term
measurement.
22. Output Terminal 1 (OUT1)
Connect the 9094 OUTPUT CORD (optional) to this
terminal to obtain output during current or frequency
measurement.
23. Output Terminal 2 (OUT2)
Connect the 9094 OUTPUT CORD (optional) to obtain
output during current measurement or at detection of the
low battery warning signal.
24. Dustproof Caps (4 pcs.)
Used to protect the terminals in a dusty environment.
25. Strap
Used to hang the 3290 around neck so as not to drop it.
26. Top Case
Cover the 3290 with this case when not in use to protect
the LCD, keys and terminals.
27. Top Case Clasp
Insert the clasp into the top case to attach the case. Move
the top case to the rear during measurement.
28. Battery Cover
Unfasten the screw, then remove the case to replace the
battery.
Chapter 1 Overview
24
1.3.2 9691, 9692, 9693
CLAMP ON AC/DC SENSOR
9691
9692
9693
Output connector
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