The DT4281, which is part of Hiokis DT4280 series of high-end digital multimeters, is designed for maximum safety in electrical work. Connect an AC clamp to safely measure current.
- Accurately measure the voltage output from the secondary sides of inverters by eliminating harmonic components
- Measure ripple voltage with a superposed DC signal by using peak value measurement and DC + AC voltage measurement
- 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
- Accurately measure the very low currents such as burner flame currents
- 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
- 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.
- Connect the DT4281 to a PC with the optional Communication Package DT4900-01 to easily graph data stored in the DMMs internal memory and display measurement results in real time on the computer. Save important measured values in text format.
- DC Voltage range: 60.000 mV to 1000.0 V, 6 ranges, Basic accuracy: +/- 0.025 % rdg. +/- 2 dgt.
- AC Voltage* range: 60.000 mV to 1000.0 V, 6 ranges, Frequency characteristics: 20 Hz - 100 kHz, Basic accuracy 45 to 65 Hz : +/- 0.2 % rdg. +/- 25 dgt. (True RMS, crest factor 3)
- DC plus AC Voltage* range: 6.0000 V to 1000.0 V, 4 ranges, Frequency characteristics: 20 Hz to 100 kHz, Basic accuracy 45 to 65 Hz : +/- 0.3 % rdg. +/- 30 dgt. (True RMS, crest factor 3)
- Resistance range: 60.000 ohms to 600.0 milliohm, 8 ranges, Basic accuracy: +/- 0.03 % rdg. +/- 2 dgt.
- DC Current range: 600.00 uA to 600.00 mA, 4 ranges, Basic accuracy: +/- 0.05 % rdg. +/- 5 dgt.
- AC Current* range: 600.00 uA to 600.00 mA, 4 ranges, Basic accuracy 45 to 65 Hz : +/- 0.6 % rdg. +/- 5 dgt. (True RMS, crest factor 3). Frequency characteristics: 20 Hz to 20 kHz (at 600 uA 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 to 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 sec 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 ohms, 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 s 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 to 1200 , 20 stages. Display dB conversion value of AC voltage (dBV)
- Temperature (thermocouples) K: -40.0 to 800.0 C. 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 V AC, 1000 V AC ranges), display value hold, auto hold, MAX/MIN value display, PEAK value display, relative value display, sampling setting, internal memory (400 data), auto-power save, USB communication (option), mis-insertion prevention shutters, decibel conversion, 4 to 20 mA percentage 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 x 197 mm x 53 mm, 650 g (with test leads holder and batteries)
- Accessories: Test Lead L9207-10 x 1, Instruction Manual x 1, LR6 Alkaline Battery x 4
* Zero-suppression: For small inputs below the guarantee range, zero is effectively displayed.