Hioki DT4252 User manual

EN
DIGITAL MULTIMETER
Instruction Manual
May 2015 Revised edition 2
DT4251A981-02 15-05H
DT4252
DT4253
DT4254
DT4255
DT4256
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i
Contents
Introduction.........................................................................1
Verifying Package Contents ..............................................1
Options (sold separately) ..................................................2
Safety Notes........................................................................5
Usage Notes......................................................................10
1 Overview 15
1.1 Overview and Features.................................15
1.2 Parts Names and Functions.........................16
1.3 Display ...........................................................22
1.4 Alarm Display and Battery Indicator ...........23
2 Preparation for Measurements 25
2.1 Measurement Workflow................................25
2.2 Inserting/Replacing Batteries ...................... 26
2.3 Using Test Leads...........................................29
2.4 Installation in Measurement Location.........32
Using the instrument with the stand.......................... 32
Attaching the magnetic strap ....................................32
2.5 Using the Carrying Case ..............................34
3 Performing Measurements 37
3.1 Inspection Before Use ..................................37
3.2 Measuring Voltage.........................................43
Measuring AC voltage...............................................43
Measuring DC voltage ..............................................44
Measurement using the AC and DC automatic
judgment (DT4253DT4254DT4255DT4256).......45
3.3 Measuring Frequencies ................................46
DT4251A981-02
Ind.Appx.
7
6
5
4
3
2
1
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ii
3.4 Checking Continuity
(DT4252DT4253DT4255DT4256).............47
3.5 Measuring Diode
(DT4252DT4253DT4255DT4256).............48
3.6 Measuring Resistance
(DT4252DT4253DT4255DT4256).............49
3.7 Measuring Temperatures (DT4253)..............50
3.8 Measuring Electrostatic Capacities
(DT4252DT4253DT4255DT4256).............52
3.9 Measuring Current
(DT4252DT4253DT4256)............................53
Measuring DC/AC Current........................................ 53
3.10 Measuring AC Current Using Clamp-on
Probe
(DT4253DT4255DT4256).................56
3.11 Checking the Electric Charge
(DT4254DT4255DT4256)............................58
4 Using Instrument Conveniently 59
4.1 Selecting the Measurement Range..............59
Measuring with the auto range .................................59
Measuring with the manual range............................. 59
4.2 Retaining the Measured Value .....................60
Retaining the measured value manually (HOLD) .....60
Automatically retaining the measured value
when the value stabilizes (AUTO HOLD)..................61
4.3 Reducing the Effect of the Noise (FILTER) . 64
4.4 Checking the Maximum/Minimum/Average 66
4.5 Checking the Relative Value/Performing
Zero Adjustment............................................ 67
Checking the relative value (REL) ............................67
Performing zero adjustment...................................... 69
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iii
4.6 Turning On the Backlight..............................70
4.7 Using the Auto Power Save (APS)...............70
4.8 Using Plus/Minus Judgment Function
for Measurement Value
(DT4254DT4255DT4256)............................71
4.9 Communicating with PC...............................72
4.10 Power-on Option Table .................................74
Changing the temperature display unit ..................... 77
5 Specifications 79
5.1 General Specifications .................................79
5.2 Electrical Characteristics .............................81
5.3 Accuracy Table..............................................83
6 Maintenance and Service 95
6.1 RepairInspectionand Cleaning.................95
6.2 Troubleshooting ............................................ 96
6.3 Error Display..................................................99
6.4 Replacing Fuses..........................................100
Appendix Appx.1
Appx. 1 RMS and Average .............................Appx.1
Ind.Appx.
7
6
5
4
3
2
1
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1
Introduction
Introduction
Thank you for purchasing the HIOKI DT4252, DT4253, DT4254,
DT4255, DT4256 Digital Multimeter. To obtain maximum
performance from the product, please read this manual first, and
keep it handy for future reference.
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 authorized Hioki distributor or reseller.
Check the package contents as follows.
Instrument (The holster has been attached.)
DT4252
DT4253
DT4255
DT4254
DT4256
L9207-10 Test Lead
(p. 29)
LR03 Alkaline battery × 4
Instruction Manual
(English)
Instruction manuals
may also be available
in other languages.
1
Ind.Appx.
7
6
5
4
3
2
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2
Options (sold separately)
Options (sold separately)
The following options are available for the instrument. Contact your
authorized Hioki distributor or reseller when ordering.
Connecting cables
*6: AC33 V/DC70 V
*1: CATIV 600 V/CATIII 1000 V/CATII 1000 V
*2: CATIV 600 V/CATIII 1000 V
*3: CATIII 1000 V
*4: CATIII 600 V
*5: CATIII 300 V/CATII 600 V
*7: CATIII 600V/CATII 600V
L4938*7
Test Pin Set
L4939*4
Breaker Pin Set
L4933*6
Contact Pin Set
L4934*5
Small Alligator Clip Set
L4935*2
Alligator Clip Set
9243*3
Grabber Clip
L4936*4
Bus Bar Clip Set
L4937*3
Magnetic Adapter Set
L4932*1
Test Pin Set
L9207-10*1
Test Lead
L4930*2
Connection Cable Set
(Length: 1.2 m)
L4931*2
Extension Cable Set
(Length: 1.5 m, with the
coupling connector)
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3
Options (sold separately)
For the clamp current measurement (Compatible only with the
DT4253, DT4255, and DT4256)
9010-50, 9018-50, 9132-50*4
Clamp-on Probe
9704
Conversion Adapter
Clamp-on probe Rated current Diameter of the measurable conductor
9010-50, 9018-50 500 Arms
46 mm or less
9132-50 1000 Arms
55 mm or less, 80×20 mm bus-bar
Temperature measurement (Only the DT4253)
DT4910 Thermocouples (K) (p. 50)
• Temperature measuring junction: Exposed type (welding)
• Sensor length: Approx. 800 mm
• Operating temperature: -40°C to 260°C (temperature
measuring part), -15°C to 55°C (connector)
• Allowable tolerance: ±2.5°C
Carrying Case
The instrument, test leads, instruction manual, and others can be stored in the
case.
C0201 Carrying Case
(p. 34)
3853 Carrying Case
C0202 Carrying Case
1
Ind.Appx.
7
6
5
4
3
2
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4
Options (sold separately)
Z5004 Magnetic Strap (p. 32)
Attach this strap to the instrument and secure it on the
wall surface such as a metal plate for use.
DT4900-01 Communication Package (USB) (p. 72)
A communication adapter, USB cable, PC software,
and communication specifications are included.
The instrument data can be stored on the PC.
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5
Safety Notes
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.
DANGER
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.
WARNING
With regard to the electricity supply, there are risks
of electric shock, heat generation, fire, and arc
discharge due to short circuits. If persons unfamiliar
with electricity measuring instruments are to use
the instrument, another person familiar with such
instruments must supervise operations.
Protective gear
WARNING
To avoid electric shock when measuring live lines,
wear appropriate protective gear, such as insulated
rubber gloves, boots and a safety helmet.
1
Ind.Appx.
7
6
5
4
3
2
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6
Safety Notes
Notation
In this manual, the risk seriousness and the hazard levels are
classified as follows.
DANGER Indicates an imminently hazardous situation that will
result in death or serious injury to the operator.
WARNING Indicates a potentially hazardous situation that may
result in death or serious injury to the operator.
CAUTION
Indicates a potentially hazardous situation that may
result in minor or moderate injury to the operator or
damage to the instrument or malfunction.
IMPORTANT
Indicates information related to the operation of the
instrument or maintenance tasks with which the
operators must be fully familiar.
Indicates a high voltage hazard.
If a particular safety check is not performed or the
instrument is mishandled, this may give rise to a
hazardous situation; the operator may receive an
electric shock, may get burnt or may even be fatally
injured.
Indicates a strong magnetic-field hazard.
The effects of the magnetic force can cause
abnormal operation of heart pacemakers and/or
medical electronics.
Indicates prohibited actions.
Indicates the action which must be performed.
*Additional information is presented below.
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