DT830B High Security Handheld Meter Digital Multimeter AC and DC LCD Digital Multimeter Voltmeter Ammeter Ohmmeter

Product Model/Name: DT-830B/Multimeter
[Function]---------[Range]---------[Accuracy]
DC voltage: 200mV-1000V 【±(0.5%+2dgt)】
AC voltage: 200-7500V 【±(1.2%+10dgt)】
DC current: 200uA-10A 【±(1.0%+2dgt)】
Resistance: 200Ω-2MΩ 【±(0.8%+2dgt)】
Diode tube: Yes
Triode: Yes
Power supply: 6F22 type 9V battery
Displayed: 1999
Dimensions: 126×70×24mm
Weight: 155g

advantage:
Very cost-effective, with test pen
Wide range of applications, suitable for beginners, students, and those who do not require high precision
DT-830B multimeter is exquisite and compact, easy to carry

Disadvantages:
The display screen is small: the accuracy is not high, the default display value of the LCD screen is 0.00--0.02
Without anti-burn protection, using the wrong measurement gear may burn the meter
Without buzzer, all DT-830B on the market do not have buzzer

Overview:
The DT830 digital multimeter is a three-and-a-half-digit liquid crystal display small digital multimeter. It can measure AC and DC voltage and AC and DC current, resistance, capacitance, beta value of transistor, diode conduction voltage and circuit short circuit, etc. A rotary band switch can change the measurement function and range. There are 30 ranges in total.
The display value of this multimeter is ±1999, and it can automatically display "0" and polarity. When it is overloaded, it will display "1" or "-1". When the battery voltage is too low, it will display the "←" mark. It is a buzzer for short circuit check.

Technical characteristics:
1. Measuring range
⑴ AC and DC voltage (AC frequency is 45Hz～500Hz); ranges are 200mV, 2V, 20V and 1000 respectively, DC accuracy is ±(0.8% of reading + 2 words) or less, AC accuracy is ±(1 of reading) ％＋5 words); Input impedance, DC gear is 10MΩ, AC gear is 10MΩ, 100PF.
⑵AC and DC current
The ranges are 200μA, 2mA, 200mA and 10A respectively. The DC accuracy is ± (1.2% of reading + 2 words), the AC accuracy is ± (2.0% of reading + 5 words), and the voltage load is 250mV (AC effective value) .
⑶ Resistance:
The ranges are: 200Ω, 2kΩ, 200kΩ, 20MΩ and 20MΩ in six ranges. The accuracy is ± (2.0% of reading + 3 words).
⑷ Diode conduction voltage:
The range is 0～1.5V, and the test current is 1mA±0.5 mA.
⑸Triode β value detection:
The test conditions are: VCE=2.8V, IB=10μA.
⑹ Short circuit detection:
Test circuit resistance＜20Ω±10Ω
2. Sampling time: T S = 0.4S.