Hioki CLAMP ON AC/DC HiTESTER 3285-20 User manual

Category
Multimeters
Type
User manual

This manual is also suitable for

3285-20
CLAMP ON AC/DC HiTESTER
Instruction Manual
December 2014 Revised edition 10 3285B981-10 14-12H
Contents
Introduction i
Verifying Package Contents ii
Safety Information iii
Operating Precautions viii
Preliminary Check xv
Chapter 1 Overview 1
1.1 Product Overview 1
1.2 Features 2
1.3 Names and Functions of Parts 3
1.4 Flowchart of button Operations 10
1.4.1 Current Measurements Mode 10
1.4.2 Voltage Measurements Mode 11
1.4.3 Frequency Measurements Mode 12
1.4.4 Resistance Measurements Mode 12
1.5 Modes 13
Chapter 2 Measurement 15
2.1 Preparations 15
2.1.1 Installing or Replacing the Battery 15
2.1.2 Attaching the Hand Strap 16
2.1.3 Turning the Power On and Off 16
2.1.4 Battery Low Warning (When mark lights) 17
2.1.5 Pre-Operation Inspection 18
3285B981-10
2.2 Current Measurement 19
2.2.1 Measuring DC Current (DC A) 19
2.2.2 Measuring AC Current (AC A) 21
2.2.3 Measuring AC/DC Current (AC+DC A) 22
2.2.4 Peak Hold Measurement 24
2.3 Voltage Measurement 26
2.3.1 Measuring DC Voltage (DC V) 26
2.3.2 Measuring AC Voltage (AC V) 27
2.3.3 Measuring AC/DC Voltage (AC+DC V) 28
2.3.4 Peak Hold Measurement 29
2.4 Frequency Measurement 31
2.4.1 Frequency Measurement in Current Mode 31
2.4.2 Frequency Measurement in Voltage Mode 32
2.5 Resistance Measurement 34
2.6 Continuity Check 36
Chapter 3 Useful Functions 39
3.1 Adjusting and Correcting Values 39
3.1.1 Auto-Zero-Adjustment Function 39
3.1.2 Zero-Cancel Correction Function 40
3.2 Pausing and Reading the Display
(Data Hold Function HOLD) 41
3.3 Alteration of Counter Updates 42
3.3.1 SLOW mode 42
3.3.2 FAST mode 42
3.4 Storing Values in Memory
(Recording Function REC) 43
3.5 Automatically Turning Power Off
(Auto Power-Off Function APS) 47
3.6 Beep Tone 48
Chapter 4 Specifications 49
4.1 Measurement Specifications 49
4.1.1 Current Measurement Specifications 49
4.1.2 Voltage Measurement Specifications 52
4.1.3 Resistance Measurement Specifications 54
4.1.4 Continuity Check 54
4.2 General Specifications 55
Chapter 5 Maintenanceand Service 59
5.1 Cleaning 59
5.2 After service 59
5.3 Troubleshooting 60
5.4 Error Massage 64
i___________________________________________________
Introduction
___________________________________________________
Introduction
Thank you for purchasing the HIOKI "3285-20
Clamp-on AC/DC HiTester."
To obtain maximum performance from the
instrument, please read this manual first, and keep it
handy for future reference.
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.
ii___________________________________________________
Verifying Package Contents
___________________________________________________
Verifying Package Contents
When you receive the instrument, 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.
Main unit
3285-20 Clamp-on AC/DC HiTester
Supplied accessories
9345 Carrying Case 1
L9207-10 Test Lead (red and black) 1
Hand Strap 1
Battery 6F22(006P) 1
Instruction manual 1
iii___________________________________________________
Safety Information
___________________________________________________
DANGER
This instrument 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 instrument. 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 instrument defects.
Safety Information
This manual contains information and warnings essential
for safe operation of the instrument and for maintaining
it in safe operating condition. Before using it, be sure to
carefully read the following safety precautions.
iv___________________________________________________
Safety Information
___________________________________________________
The symbol printed on the instrument
indicates that the user should refer to a
corresponding topic in the manual (marked with
the symbol) before using the relevant
function.
In the manual, the symbol indicates
particularly important information that the user
should read before using the instrument.
Indicates both DC (Direct Current) and AC
(Alternating Current).
Indicates DC (Direct Current).
Indicates that dangerous voltage may be
present at this terminal
Indicates a double-insulated device.
Indicates a grounding terminal.
Indicates that the instrument may be connected
to or disconnected from a live circuit.
Safety Symbols
v___________________________________________________
Safety Information
___________________________________________________
DANGER
Indicates that incorrect operation presents
extreme danger of accident resulting in
death or serious injury to the user.
WARNING
Indicates that incorrect operation presents
a significant hazard that could result in
serious injury or death to the user.
CAUTION Indicates that incorrect operation
presents a possibility of injury to the
user or damage to the instrument.
NOTE Indicates advisory items related to
performance or correct operation of the
instrument.
The following symbols in this manual indicate the
relative importance of cautions and warnings.
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 scale length.
This is usually the name of the currently selected
range.
rdg. (reading or displayed value)
The value currently being measured and indicated
on the measuring instrument.
dgt. (resolution)
The smallest displayable unit on a digital measuring
instrument, i.e., the input value that causes the
digital display to show a "1" as the least-significant
digit.Accuracy
vi___________________________________________________
Safety Information
___________________________________________________
CAT II Primary electrical circuits in equipment
connected to an AC electrical outlet by a
power cord (portable tools, household
appliances, etc.)
CAT II covers directly measuring
electrical outlet receptacles.
CAT III Primary electrical circuits of heavy
equipment (fixed installations) connected
directly to the distribution panel, and
feeders from the distribution panel to
outlets.
CAT IV The circuit from the service drop to the
service entrance, and to the power meter
and primary overcurrent protection device
(distribution panel).
Measurement categories
This instrument complies with CAT III safety
requirements.
To ensure safe operation of measurement
instruments, IEC 61010 establishes safety standards
for various electrical environments, categorized as
CAT II to CAT IV, and called measurement
categories. These are defined as follows.
Using a measurement instrument in an environment
designated with a higher-numbered category than
that for which the instrument 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.
vii___________________________________________________
Safety Information
___________________________________________________
viii___________________________________________________
Operating Precautions
___________________________________________________
DANGER
To avoid short circuits and potentially life-
threatening hazards, never attach the clamp to
a circuit that operates at more than 600 Vrms.
The maximum rated voltage to earth is 600
Vrms. Attempting to measure voltage in excess
of the maximum rated voltage to earth could
destroy the instrument and result in personal
injury or death.
This instrument 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.
To avoid electric shock, do not touch the
portion beyond the protective barrier during
use.
Never apply voltage to the test leads when the
Resistance measurement, Continuity Check
modes are selected. Doing so may damage the
instrument and result in personal injury.
To avoid electrical accidents, remove power
from the circuit before measuring.
Operating Precautions
Follow these precautions to ensure safe operation
and to obtain the full benefits of the various
functions.
ix___________________________________________________
Operating Precautions
___________________________________________________
WARNING
Do not allow the instrument to get wet, and do
not take measurements with wet hands. This
may cause an electric shock.
To avoid electric shock when measuring live
lines, wear appropriate protective gear, such as
insulated rubber gloves, boots and a safety
helmet.
During current measurement, to avoid an
electric shock accident, do not connect the test
leads or temperature probe to the instrument.
Input voltage exceeding 600 Vrms (1000 V max.)
with respect to ground could damage the
instrument and result in personal injury.
Be sure to insert them with the correct polarity.
Otherwise, poor performance or damage from
battery leakage could result.
To avoid electric shock when replacing the
battery, first disconnect the clamp from the
object to be measured.
After replacing the battery, replace the cover
and screws before using the instrument.
To avoid the possibility of explosion, do not
short circuit, disassemble or incinerate
batteries.
Handle and dispose of batteries in accordance
with local regulations.
x___________________________________________________
Operating Precautions
___________________________________________________
WARNING
To prevent electric shock, when measuring the
voltage of a power line use a test lead that
satisfies the following criteria:
Conforms to safety standards IEC61010 or
EN61010
Of measurement category III or IV
Its rated voltage is higher than the voltage to
be measured
The test leads provided with this instrument
conform to the safety standard EN61010.
Use a test lead in accordance with its defi ned
measurement category and rated voltage.
Do not use the instrument where it may be
exposed to corrosive or combustible gases.
The instrument may be damaged or cause an
explosion.
xi___________________________________________________
Operating Precautions
___________________________________________________
CAUTION
Do not store or use the instrument where it could
be exposed to direct sunlight, high temperature or
humidity, or condensation. Under such conditions,
the instrument may be damaged and insulation
may deteriorate so that it no longer meets
specifications.
This instrument is designed for use indoors. It can
be operated at temperatures between 0 and 40
without degrading safety.
Keep the clamp jaws and core slits free from
foreign objects, which could interfere with clamping
action.
For safety reasons, when taking measurements,
only use the Model L9207-10 Test Lead provided
with the instrument.
To avoid damage to the instrument, do not exceed
the maximum input current rating, which depends
on the frequency of the current being measured
(see Fig.3 of 4.1.1) Be careful about the evolution
of heat, when the input frequency is high.
The " " indicator lights up when the remaining
battery capacity is low. In this case, the
instrument's reliability is not guaranteed. Replace
the battery immediately.
When replacing the battery, make sure that the
metal battery snap fitting is firmly connected. If the
metal fitting is loose, adjust it and recheck the
connection. If it isn't connected securely, the
power may not be turned on, and a power may be
turned off during the use.
xii___________________________________________________
Operating Precautions
___________________________________________________
CAUTION
To avoid damage to the instrument, protect it from
physical shock when transporting and handling. Be
especially careful to avoid physical shock from
dropping.
Do not exert excessive pressure on the clamp
sensor or attempt to wedge the sensor into a tight
spot for measurement.
The protection rating for the enclosure of this
device (based on EN60529) is *IP40.
*IP40:
This indicates the degree of protection provided by
the enclosure of the device against use in
hazardous locations, entry of solid foreign objects,
and the ingress of water.
4: Protected against access to hazardous parts
with wire measuring 1.0 mm in diameter. The
equipment inside the enclosure is protected
against entry by solid foreign objects larger than
1.0 mm in diameter.
0: The equipment inside the enclosure is not
protected against the harmful effects of water.
xiii___________________________________________________
Operating Precautions
___________________________________________________
CAUTION
Removable sleeves are attached to the metal pins
at the ends of the test leads.
To prevent a short circuit accident, be sure to use
the test leads with the sleeves attached when
performing measurements in the CAT III
measurement category. In a CATII environment, if
the tips of the test leads do not reach the
measurement object, remove the rigid insulating
sleeve before measuring.
For details on measurement categories, see
Measurement categories (page vi) in the
instruction manual.
When performing measurements with the sleeves
attached, be careful to avoid damaging the
sleeves. If the sleeves are inadvertently removed
during measurement, be especially careful in
handling the test leads to avoid electric shock.
To prevent an electric shock accident, confirm that
the white or red portion (insulation layer) inside the
cable is not exposed. If a color inside the cable is
exposed, do not use the cable.
xiv___________________________________________________
Operating Precautions
___________________________________________________
NOTE Correct measurement may be impossible in the
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.
To avoid corrosion from battery leakage, remove the
batteries from the instrument if it is to be stored for
a long time.
Hall elements are used in the current detection
portion of the clamp on AC/DC HiTester. As there
are two types of drifts in the Hall elements, drift
depending on time and drift depending on the
surrounding temperature, take note when conducting
continuous measurements.
The Hall elements lack uniformity, and it is
impossible to determine the amount of variation
which depends on time and the temperature. When
conducting continuous measurement or in an
environment where there are huge temperature
variations, it is recommended that the variation at
point 0 when nothing has been inputted should be
first noted. The variation at point 0 is the direct
current component.This does not affect the AC
mode.
Due to the offset peculiar to elements from a hall
effect, the display may sometimes not show 0
immediately after it is turned on, but this is not a
malfunction. The count remaining has an
instrumental difference of 0 to a few tens A.
When using in DC or AC/DC mode, press the
0ADJ/RESET key each time the power is turned
on to carry out auto zero adjustment.
When 0 is displayed after zero adjustment, the
measurement can be performed without the
interference of the count remaining immediately
after the power is turned on.
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Hioki CLAMP ON AC/DC HiTESTER 3285-20 User manual

Category
Multimeters
Type
User manual
This manual is also suitable for

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