background image

 

 

 

1. Press and hold the 

 PEAK 

button until “

Peak MAX

” 

appears on the LCD display.

 

The meter will display the 

highest reading and will update the reading when a 
higher positive peak occurs. 
 

2.  To view highest negative peak, press the   PEAK 

button for approximately one second. “Peak MIN” will 
appear on the LCD display and the meter will display 
and hold the highest reading. The meter will update the 
reading when a higher negative peak occurs. 

 

 

 

3. Press the   PEAK button for approximately one second 

to switch between Peak MAX and Peak MIN 
readings. 
 

4. Press and hold the   PEAK button to exit PEAK and return 

to normal operation. 

 

 

NOTE: 

The meter does not Auto Range in the PEAK Mode. The 

meter will display

 

OL if the reading exceeds the range. When this 

occurs, exit PEAK and use the range button to select a higher 
range. 

 

 

HOLD/Backlight Button 
 

To freeze the reading on the LCD display, momentarily press 
the HOLD

 

button. The “HOLD” indicator will be displayed 

while the reading is being held. Momentarily press the HOLD 

button again to exit HOLD and return to normal operation. 

 
To turn the backlight on, press and hold the HOLD

 button 

until the backlight turns on. 
To turn the backlight off, press and hold the HOLD 

  button 

until the backlight turns off. 

Summary of Contents for MM650

Page 1: ... for more accurate AC readings and a Low Z setting for eliminating false readings caused by ghost voltages Functions include AC DC voltage and current resistance continuity capacitance frequency duty cycle temperature and diode test The MM650 also offers the added convenience of a built in LED flashlight This meter is fully ...

Page 2: ...cal circuits particularly with regard to arc flash potential Use caution on live circuits Voltages above 30 V AC rms 42 V AC peak or 60 V DC pose a shock hazard Do not use if the meter or test leads if appear to be damaged Verify operation before using meter by measuring a known live voltage Do not use the meter in wet or damp environments or during electrical storms Do not use the meter near expl...

Page 3: ......

Page 4: ...CAT III Three phase circuits and Equipment in fixed installations such as 3 phase single phase lighting motors switchgear and distribution panels circuits in commercial Lighting circuits in commercial buildings buildings Feeder lines in industrial plants Any device or branch circuit that is close to a CAT III source CAT IV Connection point to Primary distribution panels utility power and outdoor O...

Page 5: ...ton 3 REL button 4 MODE button 5 Rotary function switch 6 10A input jack 7 µA mA input jack 8 COM input jack 9 V Ω Hz Diode Continuity Cap C F Input Jack 10 HOLD Backlight button 11 MAX MIN Average button 12 Flashlight PEAK button 13 Flashlight ...

Page 6: ...Display Description ...

Page 7: ...ncy Duty Cycle Capacitance or Temperature MODE Button Used to select AC or DC Frequency or Duty Cycle Resistance Continuity or Diode Test and C or F REL button The RELATIVE function zeros out the reading on the display and stores it as a reference Subsequent readings will be displayed as the relative difference between the actual measurement and the stored reference value To activate press the REL...

Page 8: ...l will appear on the LCD display and the meter will display the running average The meter will update the reading when the average value changes 4 Press and hold the MAX MIN AVG button to end MAX MIN Average and return to normal operation NOTE The meter does not Auto Range when MAX MIN AVG is active The meter will display OL if the reading exceeds the range When this occurs exit MAX MIN AVG and us...

Page 9: ... and Peak MIN readings 4 Press and hold the PEAK button to exit PEAK and return to normal operation NOTE The meter does not Auto Range in the PEAK Mode The meter will display OL if the reading exceeds the range When this occurs exit PEAK and use the range button to select a higher range HOLD Backlight Button To freeze the reading on the LCD display momentarily press the HOLD button The HOLD indica...

Page 10: ...or DC Voltage The AC or DC Symbol will appear on the LCD display 3 Insert the black test lead into the COM jack and the red test lead into the V input jack 4 Touch the test leads to the circuit under test If measuring DC voltage touch the red test lead to the positive side of the circuit and the black test lead to the negative side of the circuit 5 Read the voltage on the LCD display WARNING Risk ...

Page 11: ...ch the test lead probes to the circuit under test 5 Read the frequency or duty cycle on the LCD display Low Z AC DC Voltage WARNING Observe all safety precautions when working on live voltages Do not measure frequency or duty cycle on circuits that exceed 600V WARNING Observe all safety precautions when working on live voltages Do not connect to circuits that exceed 600V when the meter is set to L...

Page 12: ...f the circuit 5 Read the voltage on the LCD display AC DC Current Measurements 1 Insert the black test lead into the negative COM input jack 2 For current measurements up to 10A set the rotary function switch to the 10A position and insert the red test lead into the 10A input jack 3 For current measurements up to 600mA set the rotary function switch to the mA position and insert the red test lead ...

Page 13: ...t AC or DC current The AC or DC symbol will appear on the LCD display 6 Remove power from the circuit under test then open up the circuit at the point where you wish to measure current 7 Touch the black test probe tip to the neutral side of the circuit Touch the red test probe tip to the hot side of the circuit 8 Apply power to the circuit 9 Read the current on the LCD display ...

Page 14: ...on to indicate on the display 4 Touch the test probe tips across the circuit or part under test It is best to disconnect one side of the part under test so the rest of the circuit will not interfere with the resistance reading 5 Read the resistance in the display CONTINUITY CHECK WARNING To avoid electric shock never measure continuity on circuits or wires that have voltage on them 1 Set the funct...

Page 15: ...e MODE button to indicate and V on the display 4 Touch the test probes to the diode under test Forward voltage will typically indicate 0 400 to 0 700V Reverse voltage will indicate OL Shorted devices will indicate near 0V and an open device will indicate OL in both polarities CAPACITANCE MEASUREMENTS WARNING To avoid electric shock disconnect power to the unit under test and discharge all capacito...

Page 16: ... the correct polarity 3 Press the MODE button to indicate ºF or ºC 4 Touch the Temperature Probe head to the part whose temperature you wish to measure Keep the probe touching the part under test until the reading stabilizes about 30 seconds 5 Read the temperature in the display Note The temperature probe is fitted with a type K mini connector A mini connector to banana connector adaptor is suppli...

Page 17: ...larity as shown inside battery compartment 6 Install the battery fuse cover and tighten the screw s WARNING To avoid electric shock do not operate the meter until the battery fuse cover is securely fastened to the meter WARNING When replacing the battery or fuses be sure to secure the battery compartment door firmly to maintain the waterproof and dust proof integrity of the meter Loose or overtigh...

Page 18: ...00mA 1000V 6 3 x 32mm fast blow for the µA mA ranges and 10A 1000V 10 x 38mm fast blow for the 10A range 6 Install the battery fuse cover and tighten the screw s WARNING To avoid electric shock do not operate meter until the battery fuse cover is securely fastened to the meter WARNING When replacing the battery or fuses be sure to secure the battery compartment door firmly to maintain the waterpro...

Page 19: ...ading digits Low Z 6 000V 1mV AC Voltage 60 00V 10mV 3 0 40 digits 600 0V 0 1V All AC voltage ranges are specified from 5 of range to 100 of range Input Protection 600V AC RMS or 600V DC Input Impedance approx 3kΩ AC Response 50 to 60Hz Function Range Resolution Accuracy of reading digits DC Voltage 600 0mV 0 1mV 1 0 8 digits 6 000V 1mV 1 0 3 digits 60 00V 10mV 600 0V 0 1V 1000V 1V 1 2 3 digits In...

Page 20: ...Hz Sensitivity 8V RMS Function Range Resolution Accuracy of reading digits AC Current 600 0µA 0 1µA 6000µA 1µA 1 5 3 digits 60 00mA 10µA 600 0mA 0 1mA 10 00A 10mA 2 0 8 digits All AC current ranges are specified from 5 of range to 100 of range Overload Protection µA mA ranges 800mA 1000V Fuse 10A range 10A 1000V Fuse AC current bandwidth 50 to 60Hz Function Range Resolution Accuracy of reading dig...

Page 21: ... Resolution Accuracy of reading digits Capacitance 60 00nF 10pF 5 0 35 digits 600 0nF 100pF 6 000µF 0 001µF 3 0 5 digits 60 00µF 0 01µF 600 0µF 0 1µF 6000µF 1µF 5 0 5 digits Input Protection 600V AC RMS or 600V DC Accuracy is not stated below 6nF Function Range Resolution Accuracy of reading digits Temperature 4 F to 1400 F 0 1 F 2 0 9ºF 20 C to 760 C 0 1 C 2 0 5ºC Input Protection 600V AC RMS or ...

Page 22: ...s from the date of purchase This warranty does not apply to any of our products which have been repaired or altered by unauthorized persons in any way or purchased from unauthorized distributors so as in our sole judgment to injure their stability or reliability or which have been subject to misuse abuse misapplication negligence accident or which have had the serial numbers altered defaced or rem...

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