Megger MPCC230 Pro Circuit Checker 1015-876

The Megger MPCC230 is a compact socket tester and circuit checker, in one unit.
It is designed to allow the user to test the correct wiring polarity of a socket as well as check the circuit earth loop and protective RCD during routine maintenance or inspection. In addition, the condition of the mains voltage supply can be measured, along with frequency, and an indication of the total harmonic distortion displayed. The advanced features make the MPC230 an invaluable circuit checker. Incorrect polarity is shown in detail
and - because of the TFT colour display - indicated clearly by a red test bar. With the ability to measure earth loop impedance on RCD protected circuits, as well as calculate the prospective earth fault current and show the touch voltage value, it aids routine inspection of an installation.

An auto-RCD test will confirm the operation of the protective device at measure the contact voltage value. In addition, the MPCC230 will not only provide the TRMS supply voltage, but also indicate the total harmonic distortion measured and allow the user to identity which harmonics are present.
With a memory function capable of storing up to 64 loop impedance or RCD test values, these can be downloaded using the free app for simple report generation.

Features:

• TRMS professional socket checker
• 30 mA Type A, AC and F RCD Test
• AUTO RCD x1/2, x1, x5 and 180°
• Touch voltage indication
• Frequency measurement
• Earth loop impedance with prospective earth fault current
• THD% of mains voltage
• Voltage harmonics indication, up to the 49th

Advanced Features:

• Socket polarity
• TRMS Voltage measurement
• AUTO RCD test (Type A, AC and F)
• RCD contact voltage
• No-trip earth loop impedance test with low and extra- low test current modes and touch voltage indication
• Prospective earth fault current display
• Voltage harmonics up to the 49th
• THD% (Total harmonics distortion)
• Results storage for up to 64 loop and RCD tests
• Dedicated results app - Megger Pro Circuit Checker
• Adaptor App

The MCPP230 will execute the following tests:

1. Socket polarity
2. TRMS voltage and frequency
3. Protective device (RCD/RCBO) type A, AC and F
4. No-trip earth loop impedance
5. Prospective earth fault current and touch voltage
6. Voltage harmonics up to 49th
7. THD% (Total harmonics distortion)
Tests are selected by pressing the FUNC button.
Sub-function features can be selected through the F1 and F2 buttons, for example for selecting the RCD type or displaying different harmonics.
The instrument is powered through the line input, but with the supercap technology, the display will remain visible. Fully charged, the supercap will allow ~45 seconds of use after switch off from the line. This allows the user to remove the unit and read the displayed result. This is useful, should the socket be mounted in a hard to access location.
4.1 Volt and socket test
This feature measures Voltage between phase and neutral and tests the socket wiring and polarity in accordance to local requirement.
4.1.1 Operation
1. Plug the instruments into the socket and press the FUNC button to select the Voltage function.
2. Voltage between Phase and Neutral will be shown on the display. Pressing the F2 button will cycle to the measured frequency and the units firmware and serial number. Pressing F1 cycles back to voltage.
2.1. If the socket wiring is correct and the measured earth touch voltage is less than 50 V, a green bar indicates all parameters are correct.
2.2. If an error occurs due to incorrect wiring or a high voltage detected on the earth, the bar will
turn red and an audible alarm will sound. The unit will display the failed parameter on the screen (examples in Fig 2 and 3).

RCD Auto-Operation

4.2.2 RCD x1/2, x1, x5 and Auto Operation
1. Plug the instruments into the socket and press the FUNC button to select the RCD function.
2. Press the F1 button to select the type of RCD and F2 button to select the current (x1/2, x1, x5 or Auto).
3. Press and hold the RED test button for 3 seconds to start the test.
4. The trip time and contact voltage results are shown on the display.
4.1. A green bar indicates the trip time and contact voltage are within specification (Fig 4).
4.2. If the trip time exceeds the predefined pass levels (refer to table in Auto RCD section below) or the contact voltage >50 V, a red bar is shown, indicating a fail.

4.2.3 RCD AUTO function
1. Plug the instrument in the socket and press FUNC button to select the RCD function.
2. Press the F1 button to select the type of RCD and F2 button to select AUTO.
3. Press the RED test button to start the test.
4. The instruments will execute all tests in sequence, reset the RCD between each step.
■ AUTO mode consist of 6 test in the following sequence:

Loop Test

CAUTION : The MPCC230 uses a low current no-trip loop test method. However, this DOES NOT guarantee an RCD will not trip. Accumulative or highly sensitive RCDs or RCBOs may still trip, so care should be taken to ensure that a loss of supply will not cause a hazardous situation to arise.
4.3.1 Test modes:
■ V Measures Impedance Zs (Z L-Pe) (Ω) and Touch Voltage (V) (Fig.8)
■ I Measures Impedance Zs (Z L-Pe) (Ω) and IPEFC Prospective Earth Fault Current (Fig.9)
■ Std Test with 15 mA nominal current
■ Low Test with 6 mA. Use this setup if during the test the RCD trip due to the presence of leakage current in the electric system under test.
4.3.2 LOOP test operation
1. Plug the instruments into the socket and press the FUNC button to select the LOOP function.
2. Press the F1 button to select V or I and F2 button to select TEST STD or LOW.
3. Press and hold the RED test button for 3 seconds to start the test.
fig 8 fig 9
WARNING : During the LOOP measurement, if the SUPERCAP is not fully charged, the display may switch off or decrease the intensity, however the measurement will be performed and shown at the end.
4.4 HAR voltage harmonics
This function checks the quality of the line voltage with regards to harmonics.
4.4.1 Test mode:
■ Fund Indicates the fundamental on the bar graph and displays the measured voltage and frequency. Total harmonic distorion (THD) is diaplayd as a percentage (Fig. 10).
■ h2....h50 Shows the selected harmonic on the bar graph in red, along with the measured voltage and frequency. A harmonic distortion %, compared to the fundamental, is also displayed

Harmonics function

1. Plug the instruments into the socket and press the FUNC button to select “HAR” function.
2. Press the F1 and F2 buttons to select harmonics value required
It is possible to disconnect the instrument from the power supply to read and analyse the measurements, until the SUPERCAP is discharged (approx 45 second when fully charged).
fig 10 fig 11
4.5 MEM Memory / REPORT
The instrument automatically saves RCD and LOOP measurement to the internal memory.
It is possible to store 64 consecutive measurement results. The results will be organized in chronological order with the last measurement saved in the first cell.
4.5.1 Operation
1. Plug the instruments into the socket and press the FUNC button to select MEM
2. Press F1/F2 buttons to move through the saved data
3. Press both F1 and F2 to enter clear memory mode
4. Press FUNC to clear memory or F2 to cancel

4.5.2 Report create
5. In MEM mode, press the RED button to generate a results QR code on the display (Fig.12)
6. With the Megger Pro Circuit Checker App running on your mobile device, select “Scan QR”. All saved measurements will be imported to the App and displayed in a simple report. This can then be exported in either PDF or csv format. All saved measurements will be included in a REPORT with the possibility of exporting in pdf or csv.
7. Download the Megger Pro Circuit Checker App for iOS and Android devices on the Google Play or
Apple App store.

Memory Function

8. Fig. 13 shown the MEM results display. Column No is the internal memory cell number. FUNC shows the test type and Value indicates the measured result.
9. For saved RCD measurements, a pass or fail value is shown as either GREEN or RED:
9.1. GREEN if the result has passed the test.
9.2. RED if the result has not passed the test.

isswww and Megger 

The extensive Megger product portfolio provides electrical test equipment for an exceptionally wide range of applications at any point of the electricity network. From small handheld low voltage equipment such as multifunction installation testers through to high voltage asset test equipment like insulation resistance testers, circuit breaker analysers, protection relay test systems to transformer condition measurement devices. 

Megger designs and manufactures portable electrical test equipment in factories located in Germany, Sweden, the UK, and USA. Megger products help you install, improve efficiency, reduce cost and extend the life of you or your customers’ electrical assets. 

Established in the late 1800s, the company has been designing and making test and measurement instruments that perform electrical measurements for preventative maintenance, troubleshooting and commissioning for decades. Megger products have supported customers all over the world to improve their facilities’ efficiency, reduce costs, extend the life of apparatus and through trending and analysis, anticipate equipment failure and future performance. Being a brand synonymous with the industry and a cornerstone pioneer of many of today’s everyday items of test equipment, ISSWWW are proud to bring you Megger’s full range of equipment and services, now and into the future. 

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