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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, delivering a super fast response rate and safety features that take electrical testing to a higher level. The DT4255 is a digital multimeter designed for maximum safety with voltage measurement terminals that are protected by a fuse. Hioki Digital Multimeter DT4255 Fuse-protected Terminals
Key Features
Maximum safety in the field by absolutely preventing short-circuit accidents with fused measurement terminals and current-limiting resistor
±0.3% DC V basic accuracy, wide 40 Hz to 1 kHz AC V frequency characteristics
Low-pass filter (100 Hz/ 500 Hz) cuts high harmonics (when measuring inverter fundamental waveforms)
Connect to PC with USB communication function (optional)
Broad -25°C (-13°F) to 65°C (149°F) operating temperature range CAT IV 600 V, CAT III 1000 V
Video on how to use digital multimeters
This video introduces how to use the DT4200 series of digital testers as well as some of the instrument’s featured functionality. Hioki testers are engineered to help professional electricians do their jobs safely and quickly.
Digital Multimeter designed for maximum safety with fuse-protected terminals
・ Accepts an AC clamp sensor.
・ Voltage detection function
Thorough prevention of shortcircuit accidents
When using the resistance measurement function, a protective circuit functions to prevent a short-circuit accident in the event of erroneous operation such improperly supplying voltage input. Even if a short-circuit occurs inside the tester, a current-limiting resistor will limit any short-circuit current while a fast-blow fuse quickly and reliably disconnects the tester circuitry, preventing a short-circuit accident.
Clamp-on sensorbased current measurement eliminateｓ the cause of accidents
Mistakenly measuring voltage using the current range may lead to a short-circuit. The DT4255 eliminates the root cause of such accidents by providing clamp-on sensorbased current measurement functionality instead of using conventional probes.
Measure output voltage on the secondary sides of inverters by eliminating harmonic components
Accurately measure the fundamental wave alone by eliminating harmonic components with the DMM’s low-pass filter function.
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.
Hioki Digital Multimeter DT4255 Fuse-protected Terminals
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.
Hioki Digital Multimeter DT4255 Fuse-protected Terminals
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.
Hioki Digital Multimeter DT4255 Fuse-protected Terminals
■ 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.
DC Voltage
600.0 mV to 1000 V
5 ranges, Basic accuracy: ±0.3 % rdg. ±3 dgt.
AC Voltage
6.000 V to 1000 V, 4 ranges, Frequency characteristics: 40 Hz to 1 kHz
Basic accuracy 40 – 500 Hz : ±0.9 % rdg. ±3 dgt. (True RMS, crest factor 3)
