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Summary of Contents for Mastech ms8217
- Page 1 DIGITAL MULTIMETER USER’S Manual...
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Page 2: Table Of Contents
DIGITAL MULTIMETER DIGITAL MULTIMETER CONTENTS CONTENTS 1.General instructions........1 3.2.3 Diode test..........21 3.2.4 Continuity check ........23 1.1 Precautions safety measures ......1 3.2.5 Capacitance measurement ....25 1.1.1 Preliminary ..........1 3.2.6 Frequency and duty cycle 1.1.2 During use ..........2 measurement ........27 1.1.3 Symbols ..........4 3.2.7 Temperature measurement ....27 1.1.4 Instructions ..........5 3.2.8 Current measurement ......28... -
Page 3: General Instructions
DIGITAL MULTIMETER DIGITAL MULTIMETER 1.General Instructions stresses are variable; for that reason, requires that the transient withstand capability of the equipment is made This instrument complies with IEC 1010-1 (61010 known to the user. IEC: 2001), CAT II 1000V and CAT III 600V overvoltage •... -
Page 4: Symbols
DIGITAL MULTIMETER DIGITAL MULTIMETER maximum limits of the input values shown in the • Replace the battery as soon as the battery indicator technical specification tables. appears. With a low battery, the Meter might produce • When the multimeter is linked to measurement circuits, false readings that can lead to electric shock and do not touch unused terminals. -
Page 5: Instructions
DIGITAL MULTIMETER DIGITAL MULTIMETER 1.1.4 Instructions 1.2 Protection mechanisms • Remove test leads from the Meter before opening the This instrument is fitted with various protection Meter case or battery cover. mechanisms: • When servicing the Meter, use only specified •... -
Page 6: Description
DIGITAL MULTIMETER DIGITAL MULTIMETER 2.2 LCD Display 2. DESCRIPTION See Table 1 indicated for information about the LCD 2.1 Instrument Familiarization display. Table 1. Display Symbols Number Symbol Meaning 1.LCD display The battery is low. 2.Keypad Warning: To avoid false readings, 3.Rotary switch which could lead to possible electric 4.Terminals... -
Page 7: Keypad
DIGITAL MULTIMETER DIGITAL MULTIMETER Indicator for ac voltage or current. Percent. The unit of Duty cycle. AC voltage and current are displayed as the average of the absolute value Hertz. The unit of frequency in cycles/second. of the input, calibrated to indicate the Hz, kHz, equivalent rms value of a sine wave. -
Page 8: Rotary Switch
DIGITAL MULTIMETER DIGITAL MULTIMETER 1.Press RANGE to enter the AC Voltage measurement manual ranging mode. 2.Press RANGE to step DC Voltage measurement Ω through the ranges available A, mA and RANGE DC milliVolt measurement for the selected function. µA 3.Press and hold RANGE for Resistance measurement / Diode 2 seconds to return to Ω... -
Page 9: Terminals
DIGITAL MULTIMETER DIGITAL MULTIMETER 2.5 Terminals 3. FUNCTION DESCRIPTION See Table 4 indicated for information about the terminals. 3.1 General Functions 3.1.1 DATA HOLD mode Data Hold mode makes the meter stop updating the display. Enabling Data Hold function in autorange mode makes the meter switch to Manual ranging mode, but the full-scale range remains the same. -
Page 10: Battery Saver
DIGITAL MULTIMETER DIGITAL MULTIMETER NOTE: 3.2 Measurement Functions If you manually change the measurement range after 3.2.1 AC and DC Voltage measurement entering the Data Hold modes, the Meter exits this mode. 2. To exit the manual ranging mode, press and hold down Warning RANGE key for two seconds. - Page 11 DIGITAL MULTIMETER DIGITAL MULTIMETER NOTE: • Unstable display may occur especially at 400mV range, even though you do not put test leads into input terminals, in this case, if an erroneous reading is suspected, short the V terminal and the COM terminal, and make sure the zero display.
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Page 12: Resistance Measurement
DIGITAL MULTIMETER DIGITAL MULTIMETER 3.2.2 Resistance measurement • The resistance function can produce enough voltage to forward-bias silicon diode or transistor junctions, Warning causing them to conduct. To avoid this, do not use the To avoid electrical shock and/or damage to the 40MΩ... -
Page 13: Diode Test
DIGITAL MULTIMETER DIGITAL MULTIMETER 3.2.3 Diode Test Warning To avoid electrical shock and/or damage to the instrument, disconnect circuit power and discharge all high-voltage capacitors before testing diodes. Use the diode test to check diodes, transistors, and other semiconductor devices. The diode test sends a current through the semiconductor junction, then measures the voltage drop across the junction, A good silicon junction drops between 0.5V and 0.8V. -
Page 14: Continuity Check
DIGITAL MULTIMETER DIGITAL MULTIMETER 3.2.4 Continuity Check Warning To avoid electrical shock and/or damage to the instrument, disconnect circuit power and discharge all high-voltage capacitors before testing for Continuity. Continuity is a complete path for current flow. The beeper sounds if a circuit is complete. These brief contacts cause the Meter to emit a short beep. -
Page 15: Capacitance Measurement
DIGITAL MULTIMETER DIGITAL MULTIMETER 3.2.5 Capacitance measurement Warning To avoid electrical shock and/or damage to the instrument, disconnect circuit power and discharge all high-voltage capacitors before measuring capacitance. Use the dc voltage function to confirm that the capacitor is discharged. Capacitance is the ability of a component to store an electrical charge.The unit of capacitance is the farad (F). -
Page 16: Frequency And Duty Cycle Measurement
DIGITAL MULTIMETER DIGITAL MULTIMETER 3.2.6 Frequency and Duty Cycle measurement To measure temperature: 1. Set the rotary switch to Temp range and the LCD will Warning show the current environment temperature. Do not measure Frequency on high voltage 2. Insert “K” type thermocouples into the COM terminal (>1000V) to avoid electrical shock hazard and/or and Temp terminal (or you can insert it by using Multi damage to the instrument. - Page 17 DIGITAL MULTIMETER DIGITAL MULTIMETER To measure current (set up the Meter as shown in Figure 7): 1. Turn off power to the circuit. Discharge all high voltage capacitors. 2. Set the rotary switch to the µA, mA or A range. 3.
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Page 18: Technical Specifications
DIGITAL MULTIMETER DIGITAL MULTIMETER 4 TECHNICAL SPECIFICATIONS 4.2 Measurement specifications Accuracy is specified for one year after calibration, at 4.1 General specifications operating temperatures of 18 °C to 28 °C, with relative • Environment conditions: humidity at 0% to 75%. 1000V CAT II and 600V CAT III Accuracy specifications take the form of: ±(% of Pollution degree: 2... -
Page 19: Frequency
DIGITAL MULTIMETER DIGITAL MULTIMETER 4.2.3 Frequency 4.2.6 Continuity Function Accuracy Resolution Description Function If measured resistance is less than 50.00Hz 0.01Hz 75Ω, buzzer will sound. 500.0Hz 0.1Hz - Overload protection: 1000V DC or AC rms ±(0.1% reading + 3dgt) 5.000kHz 0.001kHz 4.2.7 Capacitance 50kHz... -
Page 20: Dc Current
DIGITAL MULTIMETER DIGITAL MULTIMETER 4.2.9 DC Current A and mA ranges, 10A dc or 10A ac rms for A ranges. For measurements>5A, 4 minutes maximum ON to Measuring Range Resolution Accuracy measure 10 minutes OFF; Above 10A unspecified. 400μA 0.1μA -Frequency Range: 40Hz-200Hz ±(1.5% reading + 3dgt) -Response: Average, calibrated in rms of sine wave... - Page 21 R-00-05-0116...
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