مولتی متر دیجیتال True RMS مدل HIOKI DT-4281

60.000 mV to 1000.0 V, 6 ranges, Basic accuracy: ±0.025 % rdg. ±2 dgt.

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)

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)

60.000 Ω to 600.0 MΩ, 8 ranges, Basic accuracy: ±0.03 % rdg. ±2 dgt.

600.00 μA to 600.00 mA, 4 ranges
Basic accuracy: ±0.05 % rdg. ±5 dgt.

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)

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)

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)

1.000 nF to 100.0 mF, 9 ranges, Basic accuracy: ±1.0 % rdg. ±5 dgt.

Continuity threshold: 20/50/100/500 Ω, Response time: 10 ms or more

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

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.

Standard impedance setting (dBm), 4 Ω to 1200 Ω, 20 stages
Display dB conversion value of AC voltage (dBV)

(ترموکوپل)

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

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,

 4-20 mA percentage conversion

Main and sub displays: 5-digits LCD, max. 60000 digits

5 times/s

 (Capacitance measurement: 0.05 to 2 times/s, depending on measured value, Temperature: 1 time/s )

LR6 (AA) alkaline batteries × 4,

Continuous use: 100 hours

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)