Triplett MM650 Manual de usuario

User Manual

MM650 CAT IV True RMS Digital

Multimeter with LoZ

Introduction

The Triplett MM650 features True RMS measurements 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

tested and calibrated and, with proper use, will provide many years

of reliable service.

WARNINGS

•Read, understand and follow Safety Rules and Operating

Instructions in this manual before using this meter.

•The meter’s safety features may not protect the user if not

used in accordance with the manufacturer’s instructions.

•Ensure that the test leads are fully seated in the input jacks

and keep fingers away from the metal probe tips when taking

measurements.

•Before changing functions using the selector switch, always

disconnect the test leads from the circuit under test.

•Use only UL listed test leads with the proper safety category rating.

•Comply with all applicable safety codes. Use approved

personal protective equipment when working near live

electrical 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 explosive vapors, dust or gasses.

•Do not use the meter if it operates incorrectly. Protection

may be compromised.

•Do not operate meter while Low Battery warning is on.

Replace batteries immediately.

•Do not apply voltage or current that exceeds the meter’s

maximum rated input limits.

•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 overtightened screws,

or an improperly seated O-ring may compromise the meter's

water and dust ingress protection.

International Safety Symbols

Potential danger. Indicates the user must refer to the manual for important safety information

Indicates hazardous voltages may be present

Equipment is protected by double or reinforced insulation

MAX

Indicates the terminal(s) so marked must not be connected to a circuit where the

1000V

voltage with respect to earth ground exceeds the maximum safety rating of the meter

Safety Category Ratings

Category Rating

Brief Description

Typical Applications

CAT II

Single phase receptacles

- Household appliances, power tools

and connected loads

- Outlets more than 30ft (10m) from a CAT III source

- Outlets more than 60ft (20m) from a CAT IV source

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

- Overhead or underground lines to detached buildings

conductors

- Incoming service entrance from utility

- Outdoor pumps

The measurement category (CAT) rating and voltage rating is determined by a combination of the meter, test probes

and any accessories connected to the meter and test probes. The combination rating is the LOWEST of any individual

component.

IP67 Rating

NOTE: Meter is waterproof and dust tight

with supplied plugs or test leads inserted

into input jacks.

Meter Description

1.LCD display

2.RANGE button

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

Display Description

Operating Instructions

RANGE Button

The Auto Range mode automatically selects the proper range for

the measurement being made and is generally the best mode for

most applications. For measurement situations requiring that a

range be manually selected, perform the following:

1.Momentarily press the RANGE button. The “AUTO”

indicator will no longer be shown on the LCD display.

2.Momentarily press the RANGE button to step through

the available ranges until the desired range is selected.

3.To exit the Manual Ranging mode, press and hold the

RANGE button until the “AUTO” indicator reappears.

NOTE: The range button does not work on Frequency,

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 button. The

“REL” indicator will appear on the LCD display along with the

relative reading. Press the REL button again to return to normal

operation.

NOTE: The meter does not Auto Range when the Relative mode is

active. The display will read OL if the difference exceeds the range.

When this occurs, exit REL and use the RANGE button to select a

higher range. REL does not work on Frequency, Duty Cycle,

Temperature, Continuity or Diode Test.

MAX/MIN/AVG Button

1.Momentarily press the MAX/MIN/AVG button to activate

the MAX/MIN/Average mode. “MAX” 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 “max” occurs.

2.Momentarily press the MAX/MIN/AVG button again to

view the lowest reading. “MIN” will appear on the LCD

display and the meter will display and hold the lowest

reading. The meter will update the reading when a lower

“min” occurs.

3.Momentarily press the MAX/MIN/AVG button once more

to view the average reading. The “AVG” symbol 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 use the RANGE button

to select a higher range. MAX/MIN/ AVG does not work on

Frequency, Duty Cycle or Capacitance.

Flashlight/PEAK Button

Momentarily press the PEAK button to turn the flashlight on

and off.

The PEAK function is accessible when measuring AC

Voltage or Current. It captures and displays the highest

positive peak and the highest negative peak of the AC

waveform.

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.

1.ALWAYS turn the function switch to the OFF position

when the meter is not in use.

2.If “OL” appears in the display during a

measurement, the value exceeds the range you

have selected. Change to a higher range.

AC/DC Voltage Measurements

1.Set the Rotary Switch to the position.

2.Press the MODE button to select AC 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 Vinput 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 of electrocution. High-voltage

circuits, both AC and DC, are very dangerous and

should be measured with great care.

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