DIGITAL MULTIMETER
DT4281
World's Premier Digital Multimeter. Superior Accuracy and High Response, Topped with Safety Terminal Shutters
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The Hioki DT4200 Digital Multimeter Series consist of a complete lineup of 9 models ranging from professional to industrial to pocket meters. The DT4281 is our top-of-the-line high-precision 60000 count digital multimeter with all of the functions and features required for advanced testing in complex power and electrical applications. CAT IV 600 V, CAT III 1000 V Key Features • 60000 count, 5-digit display, high-resolution measurements • ±0.025% DC V basic accuracy, wide 20 Hz to 100 kHz AC V frequency characteristics • Low-pass filter cuts high harmonics (when measuring inverter fundamental waveforms) • Includes multiple measurement functions such as DC+ACV, temperature, capacitance, and frequency • Terminal shutter mechanism (prevents erroneous test lead insertion) • Measures large currents with optional clamp probe (only for DT4281, which has no 10 A terminal for accident prevention) • Measure up to 10A with direct input (DT4281 only) • Dual display lets you check voltage and frequency simultaneously • Magnetic strap (Optional) • Rear kickstand • Store probes at the back of the tester • Identify excessively high input with a red screen backlight • Robust design capable of withstanding a drop from a height of 1 m • USB communications function supports PC measurements (optional) • Broad -15 (5°F) to 55°C (131°F) operating temperature range
Model No. (Order Code)
| DT4281 | Direct and current clamp input terminals |
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Option
The ultimate digital multimeter, featuring a design focused on safety that’s critical for electrical work
The DT4281, which is part of Hioki’s DT4280 series of high-end digital multimeters, is designed for maximum safety in electrical work. Connect an AC clamp to safely measure current. ・ DC current measurement 600.00μA / 6000.0μA / 60.000mA / 600.00mA ・ AC current measurement 600.00μA / 6000.0μA / 60.000mA / 600.00mA ・ Directly connect an AC clamp sensor
Percentage display for 4 to 20 mA instrumentation signals
The digital multimeter can convert and display instrumentation signals of 4 to 20 mA or 0 to 20 mA representing properties such as temperature, pressure, and flow rate from a transducer or other device that converts sensor data into an electrical signal.
Clamp-on sensor based current measurement eliminates the cause of accidents
Mistakenly measuring voltage using the current range may lead to a short-circuit. The DT4281 eliminates the root cause of such accidents by providing clamp-on sensor based current measurement functionality instead of using conventional probes.
True RMS measurement for accurate measurement of even distorted current waveforms
Digital multimeters implement two types of measurement: mean-value measurement and true RMS measurement. The two methods yield significantly different measurement results for current waveforms, which are often distorted. For accurate measurement, it is necessary to use an instrument with true RMS capability.
Measurement data can be downloaded to, reviewed on, and saved to a computer.
Connect the DT4281 to a PC with the optional Communication Package DT4900-01 to easily graph data stored in the DMM’s internal memory and display measurement results in real time on the computer. Save important measured values in text format. *The computer and multimeter are electrically isolated by means of optical communications so that data can be sent without concern for electrical hazards.
Designed and manufactured in Japan to ensure high quality and guaranteed with a 3-year warranty for peace of mind
All development, design, and manufacturing processes for almost all Hioki digital multimeters are carried out at our Head Office in Nagano Prefecture. Some of the industry’s most advanced technological capabilities enable us to deliver products of the highest possible quality.
Safe measurement requires use of an instrument that suits the measurement location.
To ensure operators’ ability to use measuring instruments safely, IEC 61010 classifies the locations in which instruments are used into a series of safety-based measurement categories (ranging from CAT II to CAT IV). Using an instrument that does not satisfy the required safety level can lead to an electrical accident.
Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)Regarding DMM Accuracy Due to the many ranges and functions available in a DMM, only the basic accuracy is indicated for reference. Please refer to the individual catalogs for detailed accuracy information. * Zero-suppression: For small inputs below the guarantee range, zero is effectively displayed
| DC Voltage range | 60.000 mV to 1000.0 V, 6 ranges, Basic accuracy: ±0.025 % rdg. ±2 dgt. |
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| AC Voltage* range | 60.000 mV to 1000.0 V, 6 ranges, Frequency characteristics: 20 Hz - 100 kHz Basic accuracy 45 - 65 Hz : ±0.2 % rdg. ±25 dgt. (True RMS, crest factor 3) |
| DC + AC Voltage* range | 6.0000 V to 1000.0 V, 4 ranges, Frequency characteristics: 20 Hz - 100 kHz Basic accuracy 45 - 65 Hz : ±0.3 % rdg. ±30 dgt. (True RMS, crest factor 3) |
| Resistance range | 60.000 Ω to 600.0 MΩ, 8 ranges, Basic accuracy: ±0.03 % rdg. ±2 dgt. |
| DC Current range | 600.00 μA to 600.00 mA, 4 ranges Basic accuracy: ±0.05 % rdg. ±5 dgt. |
| AC Current* range | 600.00 μA to 600.00 mA, 4 ranges Basic accuracy 45 - 65 Hz : ±0.6 % rdg. ±5 dgt. (True RMS, crest factor 3) Frequency characteristics: 20 Hz - 20 kHz (at 600 μA to 600 mA range) |
| AC Current* range (use with Clamp on probes) | 10.00 A to 1000 A, 7 ranges Add the Clamp on probe accuracy to Basic accuracy 40 - 65 Hz : ±0.6 % rdg. ±2 dgt. (True RMS, crest factor 3) |
| Peak | DC V measurement: Signal width 4 msec or more (single), 1 msec or more (repeated) AC V, DC/AC A measurement: Signal width 1 msec or more (single), 250 μsec or more (repeated) |
| Capacitance range | 1.000 nF to 100.0 mF, 9 ranges, Basic accuracy: ±1.0 % rdg. ±5 dgt. |
| Continuity Check | Continuity threshold: 20/50/100/500 Ω, Response time: 10 ms or more |
| Diode test | Open terminal voltage: 4.5 V or less, Testing current 1.2 mA or less, Threshold of forward voltage: 0.15 V to 3 V, seven stages |
| Frequency range | AC V, DC+AC V, AC A measurement, at pulse width 1 μs or more (50 % duty ratio) 99.999 Hz (0.5 Hz or more) to 500.00 kHz, 5 ranges, ±0.005 % rdg. ±3 dgt. |
| dB conversion | Standard impedance setting (dBm), 4 Ω to 1200 Ω, 20 stages Display dB conversion value of AC voltage (dBV) |
| Temperature (thermocouples) | K: -40.0 °C to 800.0 °C (-40.0 °F to 1472.0 °F) Add accuracy of the Thermocouple probe to main unit accuracy: ±0.5 % rdg. ±3 °C |
| Other functions | Filter function (Remove harmonic noise, use only at 600 VAC, 1000 VAC ranges), Display value hold, Auto hold, Max/Min value display, Sampling select, Relative display, Measurement memory (400 data), Auto-power save, USB communication (option), 4-20 mA % conversion |
| Display | Main and sub displays: 5-digits LCD, max. 60000 digits |
| Display refresh rates | 5 times/s (Capacitance measurement: 0.05 to 2 times/s, depending on measured value, Temperature: 1 time/s ) |
| Power supply | LR6 (AA) alkaline batteries × 4, Continuous use: 100 hours |
| Dimensions and mass | 93 mm (3.66 in) W × 197 mm (7.76 in) H× 53 mm (2.09 in) D, 650 g (22.9 oz) (with test leads holder and batteries) |
| Accessories | Test Lead L9207-10 × 1, Instruction Manual × 1, LR6 Alkaline Battery × 4 |
Log into your myHioki account to access more technical documents and information where available.
Seminar Videos On Demand
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Seminar Schedule
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Nov 6, 2019 - Nov 8, 2019 | |
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Sep 18, 2019 - Sep 20, 2019 | |
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May 29, 2019 - May 31, 2019 |
Catalogs
| Catalog: COMMUNICATION PACKAGE (USB) DT4900-01 | Download PDF [1MB] |
English |
| Catalog: DIGITAL MULTIMETER DT4200 Series | Download PDF [5MB] |
English |
User Guides
| DMM series selection guide | Download PDF [580KB] |
English |
Manuals
If you can not download, log into your myHioki account to access more technical documents and information where available.
| Instruction Manual |
Spanish |
Ver.04 | |
| Instruction Manual |
English |
Ver.07 | |
| Instruction Manual |
French |
Ver.02 | |
| Instruction Manual |
Simplified Chinese |
Ver.04 | |
| Instruction Manual |
German |
Ver.02 | |
| Instruction Manual |
Korean |
Ver.04 |
Outline Drawings
If you can not download, log into your myHioki account to access more technical documents and information where available.
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DIGITAL MULTIMETER DT4281,DT4281-20 [141KB] |
Ver.01 |
Technical Notes
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Declaration of Conformity
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DIGITAL MULTIMETER DT4281,DT4282 [100KB] |
Ver.04 |
Drivers, Firmware
| DMM Communicator for DT4200s | Freeware | Version 2.10 |
| USB Driver (DT4200 series, 3800 series, 7016, 3554,ST5540,ST5541,BT4560) | Freeware | Version 1.12.0 |
Others
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Options
Test leads
Options for the L9207-10 (L9207-10 is a bundled accessory)
CONTACT PIN SET L4933
Attaches to the tip of the Test Lead L9207-10/DT4911, L9206, 60V DC/ 30V AC
SMALL ALLIGATOR CLIP SET L4934
Attaches to the tip of the L4932, L9207-10/DT4911, L9206, CAT III 300V, CAT II 600V
TEST LEAD L9207-10
90 cm (2.95 ft) length
Current measurement
For DT4281 Clamp-on current sensor
(Note: Use with the Conversion Adapter 9704, required for connecting Clamp On Probes to DT4281/4251/4253)
CLAMP ON PROBE 9010-50
• Use for level measurement • 40 Hz to 1 kHz • 10 to 500 A AC • φ 46 mm (1.81 in) core dia.
CLAMP ON PROBE 9018-50
• Excellent phase characteristics • 40 Hz to 3 kHz • 10 to 500A AC • φ 46 mm (1.81 in) core dia.
CLAMP ON PROBE 9132-50
• Use for level measurement • 40 Hz to 1 kHz • 20 to 1000A AC • φ 55 mm (2.17 in) core dia.
CONVERSION ADAPTER 9704
Receiving end: Female BNC; Output end: Male banana-plug *Not compatible with older generation Memory Hicorders with banana input terminals
Options for Test leads
Options for the L4930
GRABBER CLIP 9243
Attaches to the tip of the banana plug cable, Red/ Black: 1 each, 196 mm (7.72 in) length, CAT III 1000 V
CONNECTION CABLE SET L4930
1.2 m (3.94 ft) length
EXTENSION CABLE SET L4931
Expands the length of the cable with banana plug, 1.5 m (4.92 ft) length
TEST PIN SET L4932
Attaches to the tip of the banana plug cable, CAT IV 600V, CAT III 1000V
ALLIGATOR CLIP SET L4935
Attaches to the tip of the banana plug cable, CAT IV 600V, CAT III 1000V
BUS BAR CLIP SET L4936
Attaches to the tip of the banana plug cable, CAT III 600V
MAGNETIC ADAPTER SET L4937
Attaches to the tip of the banana plug cable, CAT III 1000V
TEST PIN SET L4938
Attaches to the tip of the banana plug cable, CAT III 600V
BREAKER PIN SET L4939
Attaches to the tip of the banana plug cable, CAT III 600V
Temperature measurement
THERMOCOUPLES(K) DT4910
K type, tip exposed, 0.3 mm (0.01 in) diameter, 80 cm (2.62 ft) length, -40 to 260 °C (-40 to 500 °F), tolerance ±2.5 °C
Other options
CARRYING CASE C0202
COMMUNICATION PACKAGE (USB) DT4900-01
For DT4280s/4250s, compatible to Windows 8.1/ 8/ 7/ Vista
MAGNETIC STRAP Z5020
Extra strength
Applications
Gallery
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