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In auto selection status, “Just one key selects the measurement function” mode happens if this key is pressed when 

“SCAn” appears in the LCD. Continuously press this key,

 

DMM will exit the status of auto selection and then enter 

the specific measure mode,

 

DCV, ACV, OHM, Diode, Continuity, Capacity, SCAN can be selected in turn. “SCAn” 

appearing in the LCD means it returns to auto selection mode. 

. HOLD BUTTON 

a. 

Hold button is the reading hold button that acts with trigger. The function is to hold the display of reading. To 

press the button, the display value will be locked and kept unchanged. To press the button again, the locked 

status will be erased and enter the normal measurement status. 

b. 

In auto selection mode, the button has no effect on them. 

. MAX/MIN BUTTON 

a. 

Press MAX/MIN button to enter MAX mode, it keeps the maximum measured value all along; press it once 

more, it then enters MIN mode and keeps the minimum measured value. Press it the third time, it return to 

the above cycle. 

b. 

It  automatically  enters  manual  range  after  entering  MAX/MIN  mode,  and  REL

,  HOLD,  RANGE  and 

SELECT will not effect under this mode. 

c. 

It automatically saves the maximum or minimum value upon entering MAX/MIN mode. 

Summary of Contents for MT-1503

Page 1: ...MT 1503 SMART Multimeter Instruction Sheet ...

Page 2: ...he object circuit before measuring the voltage The DMM enters scan mode automatically Then connect the test leads to the voltage Do not connect the test leads to the circuit first and then switch it on before the circuit is powered If so the DMM will go to the resistance measure function first when it s powered and it s easy to be damaged or operated incorrectly when the power is suddenly switched...

Page 3: ...nce measure mode to measure it when the resistance in the input terminals is below 40Mohm Input DC voltage between 0 7V and 600V on the input terminals or between 0 12V and 600V or even AC voltage between 3V and 600V frequency between 40 Hz and 400Hz then the DMM enters the corresponding measure mode for DC voltage or AC voltage In DC and AC voltage modes the DMM has high input impedance 10MΩ If t...

Page 4: ...tomatic Selection When the Volts DC is above 0 7V or 0 12V Volts AC is above 3Vrms the DMM enters volt measure mode automatically The LCD will indicate the voltage with DC or AC and its shown with figures in the corresponding units V or mV Change the test leads for the contacting point of the tested circuit if you want to test the DC voltage below 0 7V you can get the voltage of as low as 0 12V Wa...

Page 5: ... 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 fuses before proceeding Never place the probes in parallel with a circuit or component when the leads are plugged into the current terminals 2 Button Definition Due to the fact this meter only contain...

Page 6: ...splay of reading To press the button the display value will be locked and kept unchanged To press the button again the locked status will be erased and enter the normal measurement status b In auto selection mode the button has no effect on them MAX MIN BUTTON a Press MAX MIN button to enter MAX mode it keeps the maximum measured value all along press it once more it then enters MIN mode and keeps...

Page 7: ...ppens if SELECT button is pressed when SCAn appears in the LCD Continuously press this button DMM will exit the status of auto selection and then enter the specific measure mode DCV ACV OHM Diode Contynuity Capacity SCAN can be selected in turn DC and AC Voltage measurement a Connect the black test lead to COM socket and red test leads to the VΩHz socket b Press SELECT button to DCV or ACV positio...

Page 8: ...in handing capacitors because they may have a charge on them of considerable power before discharging b Connect the black test lead to COM socket and red test leads to the VΩHz socket c Press SELECT button to nF position d If REL button is equipped press REL button you can use the relative function to eliminate the zero error If not equipped you will otherwise need to subtract the zero error when ...

Page 9: ...D Auto Power OFF a If the buttons of the meter have no action within certain time the system will be power off automatically sleep mode It s 10 minutes to auto power off In auto power off status pressing the function key or enable the function switch the meter will Auto Power On Operation Mode b To press and hold any button to power on auto power off function will be disabled Maintenance Clean the...

Page 10: ... If the battery is weak a symbol will appear on the left of the display It means that the battery should be replaced Battery 1 5V AA 2 pieces or equivalent FUSE 10A 250V Fast Blow Fuse 10A 250V Fast Blow ...

Page 11: ...midity 85 RH Storage environment Temperature 4 to140 F 20 C to 60 C humidity 95 RH Altitude Operating under 2000m Storage under 10 000m Battery Type Alkaline 1 5V AA 2 pieces or equivalent Size HxWxL 3 36 cm D x 7 82 cm W x 15 8 cm H 1 32 in x 3 08 in x 6 22 in Weight 290g 10 oz Safety standards ETL LVD The meter is up to the standards of IEC1010 Pollution Degree 2 Overvoltage Category Ⅲ Rated 600...

Page 12: ...cy ACV 4 000V 40 00V 400 0V 500V 1 mV 10 mV 0 1 V 1 V 0 8 3 0 8 3 0 8 3 1 2 3 DC V 4 000 V 40 00 V 400 0 V 500 V 1 mV 10 mV 0 1 V 1 V 0 5 3 0 5 3 0 5 3 0 8 3 Ω 400 0 Ω 4 000 kΩ 40 00 kΩ 400 0 kΩ 4 000 MΩ 0 1 Ω 1 Ω 10 Ω 0 1 k Ω 1 kΩ 1 5 1 3 1 3 1 3 1 3 ...

Page 13: ...A 005 0 400 0mA 4 000A 0 1mA 1mA 2 5 2 5 Input maximum 600Vrms Current Measurement Overload Protection 10A 250V Fuse At 3 Buttons Selecting Mode Function Range Resolution Accuracy AC V 40 to 400Hz 400 0mV 4 000V 40 00V 400 0V 500V 0 1 mV 1 mV 10m V 0 1 V 1V 1 2 3 0 8 3 0 8 3 0 8 3 1 2 3 ...

Page 14: ... 0 5 3 0 5 3 0 5 3 0 5 3 0 8 3 Ω 400 0 Ω 4 000 kΩ 40 00 kΩ 400 0 kΩ 4 000 MΩ 40 00 MΩ 0 1 Ω 1 Ω 10 Ω 0 1 k Ω 1 kΩ 10 kΩ 1 5 1 3 1 3 1 3 1 3 2 3 AC A 40 to 400Hz 005 0 400 0mA 4 000A 0 1mA 1mA 2 5 5 2 5 5 DC A 005 0 400 0mA 4 000A 0 1mA 1mA 2 5 2 5 Capacity 40nF 40µF 10pF 3 5 ...

Page 15: ...14 400µF 4000µF 0 1µF 20 5 Continuity Less than 100Ω Approx Diode Test voltage Approx 2 8V Input maximum 600Vrms ...

Page 16: ...15 ...

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