Hioki DIGITAL MULTIMETER DT4281 ระดับมืออาชีพ รวดเร็ว แม่นยำสุดยอด แสดงผล 5 ตำแหน่ง

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 kHzBasic 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 kHzBasic 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 rangesBasic accuracy: ±0.05 % rdg. ±5 dgt.


AC Current* range
600.00 μA to 600.00 mA, 4 rangesBasic 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 rangesAdd 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 stagesDisplay 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