Details

---

YF-78   LCR Multimeter

 To measure DC voltage, AC voltage, DC current, AC current, resistance, frequency (auto Ranging), diode, Continuity test, inductiance, capacitance, transistor (hFE) value.

 

Application

Easy for holding according to the best design to fit human body engineering, with the optimum inclined view angle


 

Features

• Core magnet movement:
• Avoids interruption of external magnetic field.
• Double protection device:
• Diode to protect movement，fuse to protect parts of circuit board.
• Handy stand attached，with wide visual for easy readout.
• With DC 12A measuring range.

 

Specifications

• Display unit: 3½digits LCD, with a maximum reading of 1999, units. decimal point and symbol display.

• Polarity Indication: when negative value input, automatic display the symbol "-".

• Zero reset adjustment: automatic zero reset.

• Overload indication:LCD will show a "OL".

• Low battery indication: automatic low power test, when  battery voltage is lower than work voltage, "BAT" will be shown and you should be ready to replace a new battery.

• Sampling rate: 2.5 times/sec.

Electrical specification: (23°C+/-5°C, below 80%RH)

DCV
Rnge	Resolution	Accuracy	Input impedance	Overload Protection
200mV	100μV	±(0.5%+1)	10MΩ	DC 1000V AC 750V rms
2V	1mV	±(0.5%+3)
20V	10mV
200V	100mV
1000V	1V

 

ACV
Range	Resolution	Accuracy 40Hz~500Hz	Input impedance	Overload Protection
200mV	100μV	±(1.2%+4)	10MΩ	DC 1000V AC 750V rms
2V	1mV
20V	10mV
200V	100mV
750V	1V	±(1.5%+4)

 

DCA
Range	Resolution	Accuracy	Voltage Burden	Overload Protection
200μA	100nA	±(1.2%+2)	<0.7V	0.5A/250V fuse
2mA	1μA
20mA	10μA
200mA	100μA
10A	10mA	±(2.5%+2)	<0.3V	10A/250V fuse

 

ACA
Range	Resolution	Accuracy 40Hz~500Hz	Voltage Burden	Overload Protection
200μA	100nA	±(1.5%+3)	<0.7V	0.5A/250V fuse
20mA	10μA
200mA	100μA
10A	10mA	±(2.5%+3)	<0.3V	10A/600V fuse

 

Frequency Test (Auto Ranging)
Range	Resolution	Accuracy	Max.sensitivity	Overload  Protection
2KHz	1Hz	±(0.8%+3)	Lo:500mVrms  10K-1MHz   5Vrms  1MHz-20MHz  Hi:2Vrms   10-100KHz	DC/AC 350Vrms
20KHz	10Hz
200KHz	100Hz
2MHz	1KHz
20MHz	10KHz

 

Diode Test
Range	Resolution	Measuring  Voltage	Measuring Current	Overload Protection
/	1mV	3.3Vmax	0.7mA	DC/AC 500V rms

 

Transistor (HFE) Test:
Range	Measurement Range	Measuring  Voltage	Measuring Current	Overload Protection
NPN PNP	0～1000	<3.2V	IB ≒0.7mA	─────

 

Continuity Test:
Range	Resolution	Sound level Voltage	open-circuit Protection	Overload Protection
/	0.1Ω	75Ω below	MAX 3.3V	DC/AC 500V rms

 

Resistance Test
Range	Resolution	Accuracy	Open-circuit Votlage	Overload Protection
200Ω	0.1Ω	±(1.2％+4)	MAX 3.3V	DC/AC 500V rms
2KΩ	1Ω	±(1.0％+2)	>0.3V
20KΩ	10Ω
200KΩ	100Ω
2MΩ	1KΩ
20MΩ	10KΩ	±(2％+5)

 

Capacitance Test
Range	Resolution	Accuracy	Measuring  Frequency	Overload Protection
2nF	1pF	±(5％+10)	≒200Hz/1.5sec	0.5A/250V fuse
20nF	10pF
2μF	1nF
20μF	10nF
2000μF	1μF		≒2Hz/8sec

 

Inductance Test
Range	Resolution	Accuracy	Open-circuit  Voltage	Overload Protection
2mH	1μ	±(5％+10)	≒1000Hz	0.5A/250V Fuse
20mH	10μ
200mH	100μ		≒200HZ
2H	1mH
20H	10mH