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Triplett True RMS Digital Multimeter with LPF and LoZ MM520

True RMS Multimeter with Low pass filter - (MM520)

Free Shipping*
by Triplett
SKU MM520
614395002961
R 1,303.00 - R 2,698.00
R 1,303.00
R 1,303.00 - R 2,698.00
R 1,303.00
Version: Standard

Extended Lead Time: Up to 11 business days for NIST Calibration

Product Information

  • 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 2 x AA 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

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CATEGORY: DIGITAL MULTIMETER

  • 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
  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)
Datasheet
User Manual (PDF)
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.
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.
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.
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.
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.
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.
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.
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.
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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