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Summary of Contents for Mastech MAS830B
- Page 1 OPERATOR’S INSTRUCTION MANUAL DIGITAL MULTIMETER...
- Page 2 SAFETY INFORMATION This multimeter has been designed according to IEC −1010 concerning electronic measuring instruments with overvoltage category (CATⅡ ) and pollution 2. Follow all safety and operating instructions to ensure that the meter is used safely and is kept in good operating condition. Full compliance with safety standards can be guaranteed only with test leads supplied.
- Page 3 DURING USE • Never exceed the protection limit values indicated in specifications for each range of measurement. • When the meter is linked to measurement circuit, do not touch unused terminals. • Never use the meter to measure voltages that might exceed 600V above earth ground in category Ⅱ...
- Page 4 FRONT PANEL...
- Page 5 FRONT PANEL DESCRIPTION Display 3 1/2 digit, 7 segment, 15mm high LCD. Rotary switch This switch is used to select functions and desired ranges as well as to turn on/off the meter. Hold button When this button is pushed, the display will keep the last reading and “...
- Page 6 DC VOLTAGE Range Resolution Accuracy ±0.5% of rdg ± 2 digits 200mV 100μV ±0.5% of rdg ± 2 digits ±0.5% of rdg ± 2 digits 10mV ±0.5% of rdg ± 2 digits 200V 100mV ±0.8% of rdg ± 2 digits 600V Overload Protection: 250V rms.
- Page 7 DIODE Range Description Show the approx. forward voltage drop of the diode. Overload Protection: 250V dc or rms. ac. TRANSISTOR hFE TEST (0-1000) Range Test Range Test Current Test Voltage NPN & PNP 0-1000 Ib=10μA Vce=3V OPERATING INSTRUCTIONS DC VOLTAGE MEASUREMENT Connect the red test lead to the “V.Ω.mA”...
- Page 8 RESISTANCE MEASUREMENT Connect the red test lead to “V. Ω. mA” jack and black test lead to the “COM” jack. (The polarity of red lead is positive “+”.) Set the rotary switch at desired ”Ω” range position. Connect test leads across the resistor to be measured and read LCD display.
- Page 9 BATTERY & FUSE REPLACEMENT If “ ”appears on display, it indicates that the battery should be replaced. Fuse rarely need replacement and blow almost always as a result of operator’s error. To replace battery & fuse (200mA/250V) remove the 2 screws in the bottom of the case.
- Page 10 HYS004609 A1...
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Can the meter be used to check continuity