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Triple-clamp Digital Phase Clamp Voltmeter

RDML-400A triple-clamp digital phase clamp voltmeter: Precise measurements, versatile applications, and user-friendly design for electrical professionals.
Model: RDML-400A

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OVERVIEW

 

RDML-400A Triple-clamp Digital Phase Clamp Voltmeter

  • The RDML-400A triple-clamp digital phase clamp voltmeter is a powerful tool for electrical professionals, offering a wide range of measurement capabilities. It can simultaneously measure three AC channels (0.0mA to 20.0A) and three voltage channels (0.00V to 600V). Additionally, it measures phase angles between voltage, current, and voltage-to-current (0.0 to 360.0 degrees), as well as frequency, phase sequence, active power, reactive power, apparent power, power factor, and the vector sum of voltage and current phases.

 

Versatile Applications

  • It is a versatile device that can be used in various applications. It can distinguish transformer wiring groups, identify inductive and capacitive circuits, test secondary circuits and bus differential protection systems, and read the phase relationships of CTs in differential protection groups. It is also useful for verifying the correctness of watt-hour meter wiring and repairing line equipment.

 

 

CHARACTERISTIC

 

Enhanced Stability and Convenience

  • Our RDML-400A Three-Phase Digital Phase Voltmeter is designed with user comfort and data integrity in mind.
  • It comes equipped with a durable anti-vibration and anti-slip sheath, ensuring stable operation even in challenging environments.
  • The high insulation sheath adds an extra layer of safety, while the USB interface allows for seamless data transfer and backup.

 

Data Storage Capacity

  • With the ability to store up to 500 groups of data, the RDML-400A is ideal for professionals who need to capture and analyze a large volume of measurement data.
  • This storage capacity ensures that your data is readily available for future reference or analysis.

 

Intuitive Display

  • The RDML-400A features a bright 2.8-inch TFT color LCD display, providing a clear and vivid visualization of measurement parameters.
  • The screen’s layout is thoughtfully designed to present all relevant data points simultaneously, allowing for quick and easy interpretation.

 

Effortless Data Readability

  • All parameters are conveniently displayed on a single screen, eliminating the need to navigate through multiple menus or screens.
  • This user-friendly interface ensures that you can access the information you need with just a glance, enhancing your efficiency in the field or laboratory.

 

User-Friendly Design

  • The triple-clamp digital phase clamp voltmeter features a 2.8-inch TFT color LCD, presenting all parameters on a single screen for easy, at-a-glance reading.
  • Its compact design includes a sharp nose jaw that is perfect for navigating tight spaces with dense wiring, ensuring it can meet the needs of various work environments.

 

 FAQ

 

Q:1. How to use a digital clamp meter to measure voltage?

A: To measure voltage with a digital clamp meter, simply:

  • Set the meter to the AC or DC voltage mode.
  • Connect the test probes.
  • Select the right measurement range.
  • Touch the probes to the conductor.
  • Read the voltage on the display.

 

Q:2. How do you check if a voltmeter is working?

A: The checking procedure are as follows:

  • Connect one probe of the multimeter to one of the pins on the male plug of a power cord.
  • Link the other probe to the corresponding slot on the female receptacle of the same cord.
  • If the multimeter beeps, indicating continuity, then it’s functioning correctly.
ModelRDML-400A
Measurement functionMeasurement rangeResolutionBasic error
VoltageAC 0.00V~600V0.01V± (0.5% range)
CurrentAC 0.0mA~20.0A0.1mA± (0.5% range)
Phase position0.0°~360°0.1°±1°
Active power p0.0W~12kW0.1W± (1.0% range)
Reactive power Q0.0var~12kvar0.1var± (1.0% range)
Apparent power s0.0VA~12kVA0.1VA± (1.0% range)
Frequency f45Hz~65Hz0.01Hz± (1.0% range)
Power factor PF-1~+10.001±0.03
Power SupplyDC 9V 5#battery 1.5V (LR06) x6
Jaw sizeΦ8mm
LCD size2.8-inch TFT
Data storage500 groups
Data upload functionUSB interface, the stored data uploaded to the computer, easy to analyze and manage data
Automatic shutdownAutomatic shutdown in 15 minutes
PowerTurn on backlight: the maximum working current is about 80mA, and the battery works continuously for 8 hours
Turn off the backlight: the working current is about 50mA, and the battery works continuously for 12 hours
Work environment-10 ℃ ~ 40 ℃; below 80% RH
Storage environment-10 ℃ ~ 60 ℃; below 70% RH
phase sequenceNormal phase: U1, U2, U3 or I1, I2, I3 cursor flashes from left to right
Reverse phase: U1, U2, U3 or I1, I2, I3 cursor flashes from right to left
Test line length1.5m
Current clamp wire length2 m
Measuring time2 seconds/time
Data holdDuring the test, press the HOLD key to keep the data, “HD” symbol is displayed
Input impedanceThe input impedance of the test voltage is 1MΩ
Low batteryWhen the battery voltage is lower than 7.2V, the symbol of low battery voltage will be displayed to remind you to replace the battery
Pressure resistanceThe instrument circuit and the enclosure withstand

1000V / 50Hz sine wave AC voltage for 1 minute

InsulationBetween instrument circuit and sheath shell ≥ 100 MΩ
StructureDouble insulation, with insulating anti vibration sheath
Suitable for safety regulationIEC61010-1 CAT Ⅲ 600V, IEC61010-031, IEC61326, Pollution level 2

Triple-clamp Digital Phase Clamp Voltmeter PDF

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