Related Manuals for Jaycar QM1528
Summary of Contents for Jaycar QM1528
- Page 1 Operating Instruction for Autoranging Digital Multimeter Please read this manual before switching the unit on. Important safety information inside.
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Page 3: Table Of Contents
Autoranging Digital Multimeter Content Page 1.Safety..................1-1.Safety Instructions..............1-2.Safety Symbols............... 1-3.Input Limits................2.Description................... 2-1.Meter Description..............2-2.Symbols Used on LCD Display..........3.Button Function................4.Operation..................4-1.DC Voltage Measurement............4-2.AC Voltage Measurement............4-3.DC Current Measurement............4-4.AC Current Measurement............4-5.Resistance Measurement............4-6.Continuity Check..............4-7.Diode Test................5.Replacing the Battery.............. -
Page 4: Safety
Autoranging Digital Multimeter 1.Safety 1-1.Safety Instructions The following safety information must be observed to ensure maximum personal safety during the operation at this meter: • Do not use the meter if the meter or test leads look damaged, or if you suspect that the meter is not operating properly. -
Page 5: 1-3.Input Limits
Autoranging Digital Multimeter This symbol adjacent to one or more terminals identifies them as being associated with ranges that may, in normal use, be subjected to particularly hazardous voltages. For maximum safety, the meter and its test leads should not be handled when these terminals are energized. -
Page 6: Description
Autoranging Digital Multimeter 2.Description 2-1.Meter Description 1-NCV Indicate Lamp 2-2000 Count Liquid Crystal Display 3-MAX Hold Button 4-MODE Button 5-Function Switch 6-COM Input Jack 7-Positive Input Jack MODE 8-Battery Cover μA Ω Auto Autoranging Power Digital Multimeter V Ω mA μA 200mA/600V CAT III 300V CAT II 600V... -
Page 7: 2-2.Symbols Used On Lcd Display
Autoranging Digital Multimeter 2-2.Symbols Used on LCD Display 1-Autoranging 6-Units of Measure List 2-Diode Test 7-Measurement Reading 3-Continuity 8-Minus Sign 4-Maximum 9-Alternating Current 5-Battery Status 10-Direct Current 3.Button Function 3-1.MODE Button To select Diode/Continuity or DC/AC current. 3-2.MAX Hold Button •... -
Page 8: Operation
Autoranging Digital Multimeter 4.Operation WARNING: Risk of electrocution. High-voltage circuits, both AC and DC, are very dangerous and should be measured with great care. • Always turn the function switch to the OFF position when the meter is not in use, this meter has Auto OFF that automatically shuts the meter OFF if 15 minutes elapse between uses. -
Page 9: 4-2.Ac Voltage Measurement
Autoranging Digital Multimeter 4-2.AC Voltage Measurement WARNING: Risk of Electrocution. The probe tips may not be long enough to contact the live parts inside some 240V outlets for appliances because the contacts are recessed deep in the outlets. As a result, the reading may show 0 volts when the outlet actually has voltage on it. Make sure the probe tips are touching the metal contacts inside the outlet before assuming that no voltage is present. -
Page 10: 4-3.Dc Current Measurement
Autoranging Digital Multimeter 4-3.DC Current Measurement WARNING: Risk of Electrocution. The probe tips may not be long enough to contact the live parts inside some 240V outlets for appliances because the contacts are recessed deep in the outlets. As a result, the reading may show 0 volts when the outlet actually has voltage on it. Make sure the probe tips are touching the metal contacts inside the outlet before assuming that no voltage is present. -
Page 11: 4-4.Ac Current Measurement
Autoranging Digital Multimeter 4-4.AC Current Measurement WARNING: To avoid electric shock, do not measure AC current on any circuit whose voltage exceeds 250V AC. 1.For current measurements up to 2000µA AC, set the function switch to the µA Position. 2.For current measurements up to 200mA AC, set the function switch to the mA Position. 3.Insert the black test lead banana into the COM Input Jack;... -
Page 12: 4-5.Resistance Measurement
Autoranging Digital Multimeter 4-5.Resistance Measurement WARNING: To avoid electric shock, disconnect power to the unit under test and discharge all capacitors before taking any resistance. 1.Set the function switch to the Ω Position. 2.Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. -
Page 13: 4-6.Continuity Check
Autoranging Digital Multimeter 4-6.Continuity Check WARNING: To avoid electric shock, never measure continuity on circuits or wires that have voltage on them. Ω 1.Set the function switch to the Position. 2.Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. -
Page 14: 4-7.Diode Test
Autoranging Digital Multimeter 4-7.Diode Test WARNING: To avoid electric shock, do not test any diode that has voltage on it. Ω 1.Set the function switch to the Position. 2.Insert the black test lead banana into the COM Input Jack; Insert the red test lead banana into the Positive Input Jack. -
Page 15: Replacing The Battery
Autoranging Digital Multimeter 5.Replacing the Battery WARNING: To avoid electric shock, disconnect the test leads from any source of voltage before removing the battery door. • When the batteries become exhausted or drop below the operating voltage, “ ” will appear in the right-hand side of the LCD display, the battery should be replaced. -
Page 16: Specifications
Autoranging Digital Multimeter 7.Specifications 7-1.Technical Specifications Function Range Resolution Accuracy DC Voltage 200.0mV 0.1mV ±(0.5% + 4 digits) 2.000V 20.00V 10mV ±(1.2% + 5 digits) 200.0V 100mV 600V ±(1.5% + 5 digits) Input Impedance: 10MΩ Maximum Input: 600V AC/DC rms AC Voltage 2.000V ±(1.2% + 4 digits) - Page 17 Autoranging Digital Multimeter Function Range Resolution Accuracy Ω Ω Resistance 200.0 ±(1.5% + 4 digits) Ω Ω 2.000k ±(1.2% + 2 digits) Ω Ω 20.00k Ω Ω 200.0k ±(1.5% + 2 digits) Ω Ω 2.000M Ω Ω 20.00M ±(2.0% + 3 digits) Input Protection: 250V dc or 250V ac rms.
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Page 18: 7-2.General Specifications
Autoranging Digital Multimeter 7-2.General Specifications The Instrument Complies With EN61010-1 Insulation Class 2, Double insulation Overvoltage Category CAT III 300V / CAT II 600V Display 2000 count LCD display with function indication. Polarity Automatic, (-) negative polarity indication. Overrange “OL” mark indication. Low Battery Indication The “... - Page 20 Autoranging Digital Multimeter Rev.210814...