DESCRIPTION

The Triplett MM520 is a 6000 count high performance digital multimeter with True RMS readings to provide better accuracy when measuring non-sinusoidal or noisy waveforms. It offers a large variety of measurement features including AC/DC Voltage, AC/DC Current, AC/DC µA Current, Resistance, Temperature, Frequency, Capacitance, Continuity, and Diode Test. Additional features include Low Pass FIlter (LPF) for filtering frequency and harmonic interference when measuring variable frequency drives, a built-in NCV Detector, data hold, relative mode, and 60A clamp adapter input can be used with virtually any clamp adapter that has a 10mV/A output. The rubberized overmolded housing provides impact and drop resistance in a sleek ergonomic design. ETL listed with CAT III 600V safety rating that provides superior resistance to damage from transient overvoltages in demanding settings. The Model MM520 is suited for a variety of industrial and residential applications such as security, home theater, electrical, HVAC installations and more. Includes test leads, temperature probe, pouch case, and (3) AAA batteries. 1-year warranty.

MM520-NIST Comes with Certificate of traceability to NIST Standards
Please add 11 business days lead-time for the NIST calibration process

CATEGORY: DIGITAL MULTIMETER

Features

True RMS provides better accuracy when measuring non-sinusoidal or noisy waveforms
µA Current measurement
Low Pass Filter (LPF)
Built-in NCV Detector
60A Clamp Adapter input can be used with any adapter that has a 10mV/A output
Data Hold and Relative mode
Min/Max and Auto power off
Low battery indicator
CAT III 600V safety category
ETL listed

Specification

	MM520	MM525
Display counts	6000 count	6000 count EBTN w/bargraph
Basic Accuracy	±0.7%	±0.7%
AC/DC Voltage	600V	600V
AC/DC Current	10A	10A
AC/DC µA Current	600µA	600µA
Resistance	60MΩ	60MΩ
Temperature	-40 to 1832°F (-40 to 1000°C)	-40 to 1832°F (-40 to 1000°C)
Capacitance	100mF	100mF
Frequency	10MHz	10MHz
Duty Cycle	0.1 to 99.9%	0.1 to 99.9%
Continuity	<10Ω	<50Ω
Lo Pass Filter (LPF)	Yes	Yes
LoZ	—	Yes
NCV Detector	Yes	Yes
Clamp Adapter Input	10mV/A (60A max)	—
Safety Category	CAT III-600V	CAT III-600V
Dimensions	6.9 x 3.2 x 1.9" (175 x 81 x 48.5mm)	6.9 x 3.2 x 1.9" (175 x 81 x 48.5mm)
Weight	12.3oz. (350g)	12.2oz. (345g)

Downloads

Datasheet
User Manual

Description

MM520-NIST Comes with Certificate of traceability to NIST Standards
Please add 11 business days lead-time for the NIST calibration process

rohs

CATEGORY: DIGITAL MULTIMETER

Features

True RMS provides better accuracy when measuring non-sinusoidal or noisy waveforms
µA Current measurement
Low Pass Filter (LPF)
Built-in NCV Detector
60A Clamp Adapter input can be used with any adapter that has a 10mV/A output
Data Hold and Relative mode
Min/Max and Auto power off
Low battery indicator
CAT III 600V safety category
ETL listed

Specifications

	MM520	MM525
Display counts	6000 count	6000 count EBTN w/bargraph
Basic Accuracy	±0.7%	±0.7%
AC/DC Voltage	600V	600V
AC/DC Current	10A	10A
AC/DC µA Current	600µA	600µA
Resistance	60MΩ	60MΩ
Temperature	-40 to 1832°F (-40 to 1000°C)	-40 to 1832°F (-40 to 1000°C)
Capacitance	100mF	100mF
Frequency	10MHz	10MHz
Duty Cycle	0.1 to 99.9%	0.1 to 99.9%
Continuity	<10Ω	<50Ω
Lo Pass Filter (LPF)	Yes	Yes
LoZ	—	Yes
NCV Detector	Yes	Yes
Clamp Adapter Input	10mV/A (60A max)	—
Safety Category	CAT III-600V	CAT III-600V
Dimensions	6.9 x 3.2 x 1.9" (175 x 81 x 48.5mm)	6.9 x 3.2 x 1.9" (175 x 81 x 48.5mm)
Weight	12.3oz. (350g)	12.2oz. (345g)

Downloads

Datasheet
User Manual

FAQ

Q: What is a True RMS Multimeter?
A: A True RMS Multimeter is an advanced type of digital multimeter that accurately measures the root mean square (RMS) value of alternating current (AC) voltage or current. Unlike standard or average-responding multimeters, True RMS multimeters provide accurate readings for both sinusoidal and non-sinusoidal AC waveforms.

Q: How does a True RMS Multimeter work?
A: True RMS multimeters use a more sophisticated method to calculate the RMS value of AC signals. They internally convert the AC waveform to its equivalent DC value, then take the RMS value of the resulting DC signal. This method allows True RMS multimeters to provide accurate readings even for complex waveforms, such as those produced by electronic devices.

Q: When is a True RMS Multimeter required?
A: A True RMS Multimeter is particularly useful when dealing with electronic devices, switch-mode power supplies, variable frequency drives, and other non-linear loads. In such cases, the AC waveform may not be a perfect sine wave, making True RMS measurements necessary for accurate readings.

Q: Can a True RMS Multimeter measure DC voltage and current as well?
A: Yes, most True RMS multimeters can measure both AC and direct current (DC) voltage and current. They offer a wide range of measurement functions, including resistance, continuity, capacitance, frequency, and more.

Q: What types of professionals benefit from using a True RMS Multimeter?
A: True RMS multimeters are valuable tools for a wide range of professionals, including electricians, electronic technicians, engineers, HVAC technicians, and anyone working with electrical and electronic circuits or devices.

Q: How accurate are True RMS measurements compared to average-responding multimeters?
A: True RMS measurements are significantly more accurate when dealing with non-sinusoidal AC waveforms. In contrast, average-responding multimeters may provide inaccurate readings, especially for distorted or complex waveforms.

Q: Are True RMS Multimeters more expensive than standard multimeters?
A: True RMS multimeters generally have a slightly higher cost than standard multimeters due to their advanced technology and accurate measurement capabilities. However, the improved accuracy justifies the investment for applications that require precise AC measurements.

Q: Can a True RMS Multimeter be used for DC applications as well?
A: Yes, True RMS multimeters are versatile and can be used for both AC and DC measurements. They are capable of accurately measuring DC voltage and current, making them suitable for a wide range of electrical and electronic tasks.

Q: What is the difference between True RMS and RMS multimeters?
A: There is no difference between True RMS and RMS multimeters; the terms are often used interchangeably. "RMS" stands for Root Mean Square, and "True RMS" simply indicates that the multimeter is capable of providing accurate RMS readings for AC signals, including non-sinusoidal waveforms.

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True RMS Multimeter with Low pass filter - (MM520)