Details

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YF-303   Analog Multimeter

• transistor tester
• circuit tester

 

Application

•ndication of zero correction:
 Before measuring, place the pointer on zero position of the scale left by adjusting the screw of zero corrector.
•Range selection:
 When measuring an unknown value of voltage or current, start from the highest range, then adjust to a proper lower range. Measurement is more accurate as near to the full scale, for resistance measurement, near to the middle scale.
•OFF range:
 After measurement place range selector to OFF range. This is to prevent pointer from swaying and to protect multitester.

 

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

• Dimensions: 146(L) x 98 (W) x 37mm (H)
• Weight: about 255 g(including batteries).
• Power supply: 006P 9V 1pc, 1.5V/UM3 batteries *2.
• Operating temperature and humidity: 0℃~40℃,0%~80% RH.
• Fuse:5Ø*20mm 0.5A 1pc.

MEASUREMENT RANGES AND PERFORMANCE

As a transistor tester
Leakage current (iceo)(LI)	0-150μA atx1K range 0-15mA atx10 range 0-150mA atx1 range	±5% of arc	Current across terminals
DC current amplification factor(hFE)	0~1000 at x 10 range	±3% of arc	With connector extra

As a circuit tester
Measurement	Measurement ranges	Allowance	Remarks
DC Voltage (DCV)	0-0.3V-3V-12V- 30V-120V-300V-1200V Battery 1.5VCheck 0-1.5V	±3% fs	Input impedance 20KΩ/V
AC Voltage (ACV)	0-6V-30V-120V-300V-1200V	±4% fs	Input impedance 8KΩ/V
DC Current (DCmA  A)	0-0.06m A(60μA)-3m A- 30m A-0.3A-12A， 0.06m A at 0.3V DC position	±3% fs	Voltage drop 300m V
Resistance (Ω)	•Range  x1-x10-x1K-x10K  •Minimum  0.2-2-200-2Ｋ(Ω)  •Midscale  20-200-20K-200K(Ω)  •Maximum  2K-20K-2M-20M(Ω)	±3% of arc	Internal batteries UM-3x2 006Px1
AF output (dB)	-10dB-+17dB at AC6V   position 0dB/0.775V  (1mW through 600Ω)  -10dB-+63dB  (ACV all ranges)	±4% fs	8KΩ/V for out put terminal