Hioki dt4212 User manual

Instruction Manual
November 2013 Revised edition 1
使用说明书
DT4212
DIGITAL MULTIMETER
数字万用表
DT4211
2013年11月 修订一版
DT4211A981-01 13-11H

i
Contents
Introduction.........................................................................1
Verifying Package Contents..............................................1
Options (sold separately) ..................................................2
Safety Notes........................................................................4
Usage Notes........................................................................8
1 Overview 15
1.1 Overview and Features.................................15
1.2 Parts Names and Functions.........................16
1.3 Display ...........................................................21
2 Preparation for Measurements 23
2.1 Measurement Workflow................................23
2.2 Inserting/Replacing Batteries ......................24
2.3 Using Test Leads...........................................26
3 Performing Measurements 29
3.1 Inspection Before Use ..................................29
3.2 Measuring Voltage.........................................33
Measuring AC voltage...............................................33
Measuring DC voltage..............................................34
3.3 Measuring Resistance ..................................35
3.4 Measuring Diode ...........................................36
3.5 Checking Continuity .....................................37
3.6 Measuring Electrostatic Capacities.............38
3.7 Measuring Frequencies................................39
3.8 Measuring Duty Ratio ...................................40
3.9 Measuring Current ........................................41
Measuring DC/AC.....................................................41
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Contents
3.10 Measuring Temperatures (DT4212)..............43
4 Using Instrument Conveniently 45
4.1 Selecting the Measurement Range..............45
Measuring with the auto range .................................45
Measuring with the manual range.............................45
4.2 Retaining the Measured Value .....................46
Retaining the measured value (HOLD).....................46
4.3 Checking the Relative Value/Performing
Zero Adjustment............................................47
Checking the relative value (REL)............................47
Performing zero adjustment......................................48
4.4 Turning On the Backlight..............................49
4.5 Using the Auto Power Save (APS)...............49
5 Specifications 51
5.1 General Specifications .................................51
5.2 Electrical Characteristics.............................53
5.3 Accuracy Table..............................................55
6 Maintenance and Service 63
6.1 RepairInspectionand Cleaning.................63
6.2 Troubleshooting............................................64
6.3 Replacing Fuses............................................67
Appendix Appx.1
Appx. 1 RMS and Average .............................Appx.1

1
Introduction
Introduction
Thank you for purchasing the HIOKI DT4211 (Average value
measurement model), DT4212 (True RMS measurement model)
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.
DT4211 (Average value measurement model) or DT4212 (True RMS
measurement model)
DT4211
(Average value
measurement model)
DT4212
(True RMS
measurement model)
The holster has been attached.
L9206 Test Lead
(p. 27)
R6P manganese battery × 2
Instruction Manual
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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
*1: CAT IV 600 V/CAT III 1000 V/CAT II 1000 V
*2: CAT IV 600 V/CAT III 1000 V
*3: CAT III 1000 V *5: CAT III 300 V/CAT II 600 V
*4: CAT III 600 V *6: AC33 V /DC70 V
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
L9206*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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Options (sold separately)
Temperature measurement (Only the DT4212 (True RMS
measurement model))
DT4910 Thermocouples (K) (p. 43)
•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
C0201 Carrying Case
The instrument, test leads, instruction manual, and others
can be stored in the case.
C0202 Carrying Case
The instrument, test leads, instruction manual, and others
can be stored in the case.
Z5004 Magnetic Strap
Attach this strap to the instrument and secure it on the
wall surface such as a metal plate for use.
Handling the strap (p. 11)
For the detailed procedure of the C0201 Carrying Case and Z5004 Magnetic
Strap, refer to our Website.
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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.

5
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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Safety Notes
Symbols affixed to the instrument
Indicates cautions and hazards. When the symbol is printed on
the instrument, refer to a corresponding topic in the Instruction
Manual.
Indicates that dangerous voltage may be present at this terminal.
Indicates a double-insulated device.
Indicates a fuse.
Indicates a grounding terminal.
Indicates DC (Direct Current).
Indicates AC (Alternating Current).
Indicates DC (Direct Current) or AC (Alternating Current).
Symbols for various standards
Indicates the Waste Electrical and Electronic Equipment
Directive (WEEE Directive) in EU member states.
Indicates that the instrument conforms to regulations set out by
the EC Directive.
Accuracy
We define measurement tolerances in terms of rdg. (reading) and
dgt. (digit) values, with the following meanings:
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.