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3280-10F
Instruction Manual
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Hioki 3280-10F Instruction Manual

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Instruction Manual
Instruction Manual


3280-10F
3280-10F
AC CLAMP METER
AC CLAMP METER
EN/ES/FR/DE/IT
Oct. 2021 Revised edition 1 3280H980-01 21-10H
1
OK NO
OK NO
2 2
1
CT6280
3
3280H980-01
3
4
Measure-1
OK
NO
NO
NO
NO
Measure-2
1 1
OK
NO
OK
2 2
3 3
Black (−)
Red (+)
Red (+)
Black (−)
Measure-3
1 1
2 2
3 3
4 4
Measure-4
English (EN)
Español (ES)
Français (FR)
Deutsch (DE)
Italiano (IT)

Contents

Introduction ............................................. 1
Safety Notes Inspection Before Measurement Maintenance/Inspection
Insert/Replace Batteries ..........................9
Functions .............................................. 10
Parts Names
Specications
General Specications ..........................13
Basic Specications ..............................15
Function Specications .........................16
Accuracy Specications ........................17
Warranty Certicate
............................................ 1
........... 8
......................... 9
.......................................... 11
....................................... 13
3280H980-01
EN-i
Contents
EN-ii

Introduction

Introduction
Thank you for purchasing the Hioki 3280-10F AC Clamp Meter. To obtain maximum performance from
the instrument, please read this manual rst, and
keep it handy for future reference.

Safety Notes

This instrument is designed to conform to IEC 61010 Safety Standards, and has been thoroughly tested for safety prior to shipment. However, using the instrument in a way not described in this manual may negate the provided safety features. Before using the instrument, be certain to carefully read the following safety notes.
Notation
In this document, the risk seriousness and the
hazard levels are classied as follows.
DANGER
WARNING
CAUTION
Imminent risk of operator death or serious injury
Potential for operator death or serious injury
Potential for minor operator injury or device damage or malfunction
EN-1
Safety Notes
Risk of electric shock
Prohibited actions
Actions that must be performed
Symbols afxed to the device
Precaution or hazard (See corresponding topic.)
Risk of electric shock
Protected throughout by double insulation or reinforced insulation
Device may be connected to or disconnected from a live conductor
Flexible sensors can be connected to or disconnected from live conductors when using appropriate protective insulation. Other sensors can only be connected to or disconnected from insulated conductors suited to the voltage of the conductor under measurement.
Grounding terminal
DC (direct current)
AC (alternating current)
EN-2
Safety Notes
Measurement categories
This instrument’s current measurement part conforms to the safety requirements for CAT III 600 V, and the voltage measurement part conforms to the safety requirements for CAT II 600 V, CAT III 300 V measuring instruments.
Distribution panel
Service entrance
Service drop
CAT IV
Power meter
Internal wiring
CAT III
Fixed Installation
CAT II
Outlet
DANGER
Measuring a location with a higher category number than the measurement category indicated on this device may result in a serious accident such as electric shock.
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 and continuity functions are selected. Doing so may damage the instrument and result in bodily injury. To avoid electrical accidents, remove power from the circuit before measuring.
EN-3
Safety Notes
• To avoid electric shock, short circuits
• To prevent electric shock, when
• The optional test leads for this
WARNING
and damage to the instrument, disconnect the test leads from the measurement object before switching the rotary switch.
measuring the voltage of a power line use a test lead that satises 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
instrument conform to the safety standard EN61010. Use a test lead in accordance with its dened
measurement category and rated
voltage.
EN-4
Safety Notes
WARNING
Installing the instrument in inappropriate locations may cause a malfunction of instrument or may give rise to an accident. Avoid the following
locations:
• Exposed to direct sunlight or high
temperature
• Exposed to corrosive or combustible
gases
• Exposed to a strong electromagnetic eld or electrostatic charge
• Near induction heating systems (such as high-frequency induction heating systems and IH cooking equipment)
• Susceptible to vibration
• Exposed to water, oil, chemicals, or
solvents
• Exposed to high humidity or
condensation
• Exposed to high quantities of dust particles
EN-5
Safety Notes
• Since there is a risk of electric shock,
• To prevent a short circuit accident,
• If the sleeves are inadvertently
• With regard to the electricity supply,
• This instrument is measured on a
• Handle and dispose of batteries in
WARNING
check that the insulation on the test lead and exible sensor (optional) are neither ripped nor torn, and no metal conductor inside the wire are exposed before using the instrument. If damaged, replace them with those specied by our company.
be sure to use the test leads with the sleeves attached when performing measurements in the CAT III measurement category.
removed during measurement, stop the measurement.
there are risks of electric shock, heat generation, re, and arc ash due to short circuits. If persons unfamiliar with electricity measuring instrument are to use the instrument, another person familiar with such instruments must supervise operations.
live line. To prevent electric shock, use appropriate protective insulation and adhere to applicable laws and regulations.
accordance with local regulations.
EN-6
Safety Notes
CAUTION
Do not place foreign objects between the
jaw tips (or exible loop couplings) or insert
foreign objects into the gaps of the jaws
(or exible loop couplings). Doing so may
worsen the performances of the sensor or interfere with clamping action.
Poor performance or damage from battery leakage could result. Observe the cautions listed below:
• Do not use batteries after their recommended expiry date.
• Do not allow weak batteries to remain in the instrument.
• Replace batteries only with the specied type.
• Remove the batteries from the instrument if it is to be stored for a long time.
• 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.
• To avoid battery depletion, turn the rotary switch OFF after use (the auto power save feature consumes a small amount of current).
EN-7

Inspection Before Measurement

Inspection Before Measurement
• Verify that the instrument operates normally to ensure that no damage occurred during storage
or shipping. If you nd any damage, contact your
authorized Hioki distributor or reseller.
• If damage is suspected, check the section below before contacting your authorized Hioki distributor or reseller.
Check that the test lead is not broken.
1
Replace with the specied L9208 Test Lead.
Check that the resistance measurement and
2
continuity test operates normally.
Have the instrument repaired by the your authorized Hioki distributor or reseller. The instrument may have been subject to a voltage of greater than 600 V during resistance measurement or continuity testing.
Check that the battery voltage is not low.
3
Replace the batteries.
EN-8

Maintenance/Inspection

Maintenance/Inspection
Cleaning
• Measurements are degraded by dirt on the mating
surfaces of the jaw (or exible loop coupling), so
keep the surfaces clean by gently wiping with a soft, dry cloth.
• To clean the device, wipe it gently with a soft cloth moistened with water or mild detergent.
• Wipe the LCD display gently with a soft, dry cloth.

Insert/Replace Batteries

Necessary tool: Phillips screwdriver and CR2032 Coin­shaped lithium battery
OK
1 2
NO
Do not turn the adjustment screw inside the battery case. Doing so will cause the instrument to report abnormal measured values.
CALIFORNIA, USA ONLY
This product contains a CR Coin Lithium Battery
which contains Perchlorate Material - special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate
3
4
EN-9

Functions

Functions
Auto power-saving function
Display will automatically turn off if the instrument is not used for 30 min.
To resume instrument operation in the previous state, select the “OFF” position with the rotary switch and then move the switch to the desired function.
To cancel auto power-saving function
Select the desired function with the rotary switch while
1.
holding down
The LCD display will change from [APS] to [OFF], and
2.
the auto power-saving function will be disabled. Setting the rotary switch to “OFF” and then reselecting the
3.
desired function will enable the auto power-saving function.
Auto-range function
Automatically sets the measurement range to the most appropriate range.
Displays [AUTO]
Manual-range function
To set the measurement range arbitrarily.
Select the desired function with the rotary switch while
1.
holding down
2.
Press key to switch the range. (Can set the range as desired, except during continuity
testing.)
key.
key.
Overow indication
Indication when input exceeds the measurement range.
Displays [OF] or [-OF]
EN-10

Parts Names

3280-10F AC Clamp Meter
Jaw
Barrier
Operation grip
LCD Display
key
HOLD key
(Press to hold the display value.)
Rotary switch
Measurement terminal
Test lead or exible sensors plug
Parts Names
RearFront
Battery cover
L9208 Test Lead
Sleeves
(Red)
(Black)
EN-11
Parts Names
CT6280 AC Flexible Current Sensor (optional)
Flexible loop
Cap (Approx. φ7 mm)
Instruction plate
Using the attachment allows
the exible loop to weave
through cables easily.
EN-12
Cap
CapAttachment
Specications
Specications
Accuracy
We dene measurement tolerances in terms of rdg. (reading)
and dgt. (digit) values, with the following meanings:
rdg. (reading or
displayed value)
dgt. (resolution)
General Specications
The value currently being measured and indicated on the measuring instrument.
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-signicant digit.
Operating environment
Operating temperature and humidity
Temperature −25°C to 65°C (−13.0°F to 149.0°F)
Humidity
(no condensation)
Indoor use, pollution degree 2, altitude up to 2000 m (6562 ft.)
range: up to 40°C)
(40 M
Ω
Less than 40°C (104.0°F): 80% RH or less At least 40°C (104.0°F) but less than 45°C (113.0°F): 60% RH or less At least 45°C (113.0°F) but less than 50°C (122.0°F): 50% RH or less At least 50°C (122.0°F) but less than 55°C (131.0°F): 40% RH or less At least 55°C (131.0°F) but less than 60°C (140.0°F): 30% RH or less At least 60°C (140.0°F) but less than 65°C (149.0°F): 25% RH or less
EN-13
Specications
Storage
temperature and humidity
Dust resistance and water resistance
Drop-proof
functionality
Standards
Power supply CR2032 Coin-shaped lithium battery ×1
Continuous
operating time
Dimensions
Weight
Product
warranty period
Accessories
−25°C to 65°C (−13°F to 149°F), 80% RH or less (no condensation)
IP40 (EN60529)
1 m on concrete
Safety: EN61010 EMC: EN61326
(3 V DC) Maximum rated power: 15 mVA
Approx. 120 hours (AC current measurement mode, continuous, unloaded)
• 3280-10F: Approx. 57W×175H×16D mm
(2.24″W × 6.89″H × 0.63″D)
• CT6280: Approx. 42W×65H×18D mm (1.65″W × 2.56″H × 0.71″D) (excluding the exible loop and output
cable)
• 3280-10F: Approx. 100 g (3.5 oz.) (including battery)
• CT6280: Approx. 71 g (2.5 oz.)
3280-10F, CT6280: 3 years
• 9398 Carrying Case (C0205 Carrying Case when CT6280 is attached)
• L9208 Test lead
• CR2032 Coin-shaped lithium battery
• Instruction Manual
EN-14
Specications
Options
• CT6280 AC Flexible Current Sensor (Attachment is included)
• 9209 Test Leads Holder
• L4933 Contact Pin Set (Can be connected to the tip of
the L9208, which comes with the
instrument.)
• L4934 Small Alligator Clip Set (Can be connected to the tip of
the L9208, which comes with the
instrument.)
Basic Specications
Maximum input
current
Maximum input voltage
Overload protection
Maximum rated voltage to earth
• Jaw (3280-10F)
2000 A AC continuous (45 Hz to 66 Hz)
• Flexible loop (3280-10F+CT6280)
4200 A AC continuous (50 Hz to 60 Hz)
600 V AC/DC and 3×10 (ACV/DCV)
600 V AC/DC (ACV/DCV/
• Jaw, CT6280 600 V AC (Measurement category III), 300 V AC (Measurement category IV) (Anticipated transient overvoltage: 6000 V)
• Voltage measurement terminal 600 V AC (Measurement category II), 300 V AC (Measurement category III) (Anticipated transient overvoltage:
4000 V)
6
V·Hz or less
/continuity)
Ω
EN-15
Specications
AC measurement
method
Display update
rate
Noise rejection
characteristics
Zero-display
range
Effects of conductor
position
Maximum
measurable conductor diameter
Average value measurement RMS method
400 ms±25 ms
NMRR DCV −40 dB or more
(50 Hz/60 Hz)
CMRR DCV −100 dB or more
(50 Hz/60 Hz, 1 kΩ unbalance) ACV −60 dB or more (50 Hz/60 Hz, 1 kΩ unbalance)
But, −45 dB or more
for 600 V range.
5 counts (AC Current, jaw - exible loop)
Within ±5.0%
(At all positions around the sensor’s centerpoint reference)
3280-10F: φ33 mm or less CT6280: φ130 mm or less
Function Specications
Display Maximum count: 4199 counts
Battery indicator warning voltage
mark lights up at 2.3 V±0.15 V
or less
EN-16
Accuracy Specications
Specications
Conditions of guaranteed accuracy
AC Current - Jaw
1
Range Accuracy range
42.00 A 4.00 A to 41.99 A
1000 A 100 A to 1000 A
AC Current - Flexible loop
2
Range Accuracy range
420.0 A 40.0 A to 419.9 A
4200 A 400 A to 4199 A
• Guaranteed accuracy period: 1 year
(Number of jaw and exible loop open/
close cycles: 10,000 or less)
• Guaranteed accuracy period after adjustment made by Hioki: 1 year
• Temperature and humidity for
guaranteed accuracy: 23°C±5°C (73.0°F±9.0°F), 80% RH or less
• Temperature characteristic:
Measurement accuracy × 0.1/°C is added (excluding 23°C±5°C)
Accuracy
50 Hz ≤ f ≤ 60 Hz
±1.5% rdg. ±5 dgt.420.0 A 40.0 A to 419.9 A
Accuracy
50 Hz ≤ f ≤ 60 Hz
±3.0% rdg. ±5 dgt.
(includes accuracy of CT6280 AC Flexible Current Sensor:
±1.0% rdg.)
EN-17
Specications
AC Voltage
3
Accuracy
Range
range
0.400 V to
4.200 V
4.199 V
4.00 V to
42.00 V
41.99 V
40.0 V to
420.0 V
419.9 V
400 V to
600 V
600 V
DC Voltage
4
Range Accuracy range Accuracy
420.0 mV 40.0 mV to 419.9 mV
4.200 V 0.400 V to 4.199 V
42.00 V 4.00 V to 41.99 V
600 V 400 V to 600 V
Accuracy
45 Hz ≤ f ≤
66 Hz
±1.8% rdg. ±7 dgt.
66 Hz < f ≤
500 Hz
±2.3% rdg. ±8 dgt.
±2.5% rdg. ±5 dgt.
±1.0% rdg. ±3 dgt.
Input impedance
±5%
11 M
Ω
±5%
10 M
Ω
Input impedance
or
100 M
Ω
more
±5%
11 M
Ω
±5%420.0 V 40.0 V to 419.9 V
10 M
Ω
EN-18
Resistance
5
Range Accuracy range Accuracy
420.0
4.200 k
42.00 kΩ4.00 kΩ to 41.99 k
420.0 kΩ40.0 kΩ to 419.9 k
4.200 MΩ0.400 MΩ to 4.199 M
42.00 M
6
Range Accuracy
420.0
40.0 Ω to 419.9
Ω
0.400 kΩ to 4.199 k
Ω
4.00 MΩ to 41.99 M
Ω
Continuity Check
±2.0% rdg.
Ω
±4 dgt.
Ω
Ω
±2.0% rdg. ±4 dgt.
Ω Ω
±5.0% rdg.
Ω
±4 dgt.
±10.0% rdg.
Ω
±4 dgt.
Threshold of buzzer sound
±40 Ω or less
50
Ω
Specications
Open circuit voltage
3.4 V
or less
Open circuit voltage
3.4 V or
less
EN-19
Specications
EN-20
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