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USER’S Manual

DIGITAL MULTIMETER

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Summary of Contents for ms8217

Page 1: ...USER S Manual DIGITAL MULTIMETER ...

Page 2: ...ns 16 3 2 1 AC and DC Voltage measurement 16 3 2 2 Resistance measurement 19 4 2 1 DC Voltage 32 4 2 2 AC Voltage 32 4 2 3 Frequency 33 4 2 5 Diode Test 33 4 2 6 Continuity 34 4 2 9 DC Current 35 4 2 10 AC Current 35 5 Maintenance 36 5 2 Replacing the Test Lead or alligator clip 36 5 1 Replacing the Batteries 36 6 Accessories 36 4 Specifications 31 4 1 General specifications 31 4 2 Measurement Spe...

Page 3: ...ion to the fixed installation MEASUREMENT CATEGORY II is applicable to test and measuring circuits connected directly to utilization points socket outlets and similar points of the low voltage MAINS installation NOTE Examples are measurements on household appliances portable tools and similar equipment Measurement category I is for measurements performed on circuits not directly connected to MAINS...

Page 4: ...rcuit under test For all dc functions including manual or auto ranging to avoid the risk of shock due to possible improper reading verify the presence of any ac voltages by first using the ac function Then select a dc voltage range equal to or greater than the ac range Disconnect circuits power and discharge all high voltage capacitors before testing resistance continuity diodes or capacitance Nev...

Page 5: ...e with established practices When the instrument is opened up remember that some internal capacitors can retain a dangerous potential even after the instrument is switched off If any faults or abnormalities are observed take the instrument out of service and ensure that it cannot be used until it has been checked out If the meter is not going to be used for a long time take out the battery and do ...

Page 6: ...le 1 indicated for information about the LCD display Table 1 Display Symbols Number Symbol Meaning 1 2 The battery is low Warning To avoid false readings which could lead to possible electric shock or personal injury replace the battery as soon as the battery indicator appears Indicates negative readings DIGITAL MULTIMETER DIGITAL MULTIMETER ...

Page 7: ...0 or 0 001 amperes 6 Microamp 1x10 or 0 000001 amperes A mA AC DC Ω kΩ MΩ Ω kΩ MΩ Ohm The unit of resistance 3 Kilohm 1x10 or 1000 ohms 6 Megohm 1x10 or 1 000 000 ohms 11 Hz kHz MHz Hertz The unit of frequency in cycles second 3 Kilohertz 1x10 or 1000 hertz 6 Meghertz 1x10 or 1 000 000 hertz Hz Khz MHZ µF nF Farad The unit of capacitance 6 Microfarad 1x10 or 0 000001 farads 9 Nanofarad 1x10 or 0 0...

Page 8: ...2 seconds to return to autoranging REL Any switch position Hz V A mA and µA 2 4 Rotary switch See Table 3 indicated for information about the rotary switch positions Table 3 Rotary Switch Positions mV V Ω V AC Voltage measurement DC Voltage measurement DC milliVolt measurement Resistance measurement Diode Test Continuity Check Capacitance measurement DC or AC Current measurement from 0 01A to 10 0...

Page 9: ...h HOLD key again To enter and exit the Data Hold mode 1 Press HOLD key short press Fixes the display on the current value DATA H is displayed 2 A second short press returns the meter to normal mode 3 1 2 Manual ranging and Autorange mode The Meter has both manual ranging and autorange options In the autorange mode the Meter selects the best range for the input detected This allows you to switch te...

Page 10: ...ed 3 Press REL key for more than 2 seconds to return the Meter to normal operation 3 2 Measurement Functions 3 2 1 AC and DC Voltage measurement To avoid electrical shock and or damage to the instrument do not attempt to take any voltage measurement that might exceeds 1000Vdc or 1000Vac rms To avoid electrical shock and or damage to the instrument do not apply more than 1000Vdc or 1000Vac rms betw...

Page 11: ...rminal and make sure the zero display For better accuracy when measuring the dc offset of an ac voltage measure the ac voltage first Note the ac voltage range then manually select a dc voltage range equal to or higher than the ac range This improves the accuracy of the dc measurement by ensuring that the input protection circuits are not activated AC Voltage DC Voltage DIGITAL MULTIMETER DIGITAL M...

Page 12: ... the test leads to the circuit being measured and read the displayed value Some tips for measuring resistance The measured value of a resistor in a circuit is often different from the resistor s rated value This is because the Meter s test current flows through all possible paths between the probe tips In order to ensure the best accuracy in measurement of low resistance short the test leads befor...

Page 13: ... 40 00MΩ To test a diode out of a circuit set up the Meter as shown in Figure 4 1 Set the rotary switch to range 2 Press the yellow key once to activate Diode Test 3 Connect the black and red test leads to the COM and VΩ terminals respectively 4 For forward bias readings on any semiconductor component place the red test lead on the component s anode and place the black test lead on the component s...

Page 14: ...er to emit a short beep To test for continuity set up the Meter as shown in Figure 5 1 Set the rotary switch to range 2 Press the yellow key twice to activate Continuity Check 3 Connect the black and red test leads to the COM and terminals respectively 4 Connect the test leads to the resistance in the circuit being measured 5 When the test lead to the circuit is below 75Ω a continuous beeping will...

Page 15: ...culating the capacitance The measurement takes about 1 second per range The Meter s capacitance ranges are 50 00nF 500 0nF 5 000µF 50 00µF and 100 0µF Note The meter may take a few seconds to stabilize reading This is normal for high capacitance measuring To improve the accuracy of measurements less than 50nF subtract the residual capacitance of the Meter and leads Below 500pF the accuracy of meas...

Page 16: ...hen voltages at the measurement surface exceed 60V dc or 24V rms AC To avoid damage or burns Do not make temperature measurements in microwave ovens Warning 3 2 8 Current measurement To avoid damage to the Meter or injury if the fuse blows never attempt an in circuit current measurement where the open circuit potential to earth is greater than 250V To avoid damage to the meter check the meter s fu...

Page 17: ...uit path to be tested Touch the black probe to the more negative side of the break touch the red probe to the more positive side of the break Reversing the leads will give a negative reading but will not damage the Meter 6 Turn on power to the circuit then read the display Be sure to note the measurement units at the right side of the display µA mA or A When only the figure OL displayed it indicat...

Page 18: ...he battery is under the proper operation range Polarity indication displayed automatically Power source 4 5V Battery type AAA 1 5V Dimensions 185 L 87 W 53 H mm Weight 360g Approx battery included 4 2 Measurement specifications Accuracy is specified for one year after calibration at operating temperatures of 18 C to 28 C with relative humidity at 0 to 75 Accuracy specifications take the form of of...

Page 19: ...4 2 5 Diode test Function Description Overload protection 1000V DC or AC rms Function Description If measured resistance is less than 75Ω buzzer will sound 4 2 6 Continuity Overload protection 1000V DC or AC rms 50nF 10pF Overload protection 1000V DC or AC rms 3 0 reading 5dgt Function Resolution Accuracy 4 2 7 Capacitance 500nF 5μF 50μF 100μF 100pF 1nF 10nF 100nF 3 0 reading 10dgt 55 C 0 C Overlo...

Page 20: ...in rms of sine wave A and mA ranges 10A dc or 10A ac rms for A ranges For measurements 5A 4 minutes maximum ON to measure 10 minutes OFF Above 10A unspecified Frequency Range 40Hz 200Hz Response Average calibrated in rms of sine wave 5 Maintenance To prevent electric shock and damage to the meter or personal injury remove test lead before opening battery cover Warning 5 2 Replacing the Test Lead o...

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