1. Introduktion
The Sonel MPI-530 is a state-of-the-art multifunction electrical installation meter designed for comprehensive testing and verification of electrical installations. It combines multiple measurement functions into a single, portable device, ensuring efficiency and accuracy for professional electricians and technicians.

Figure 1.1: The Sonel MPI-530 Multifunction Electrical Installation Meter.
2. Sikkerhedsoplysninger
Always observe standard safety precautions when working with electrical installations. This device is intended for use by qualified personnel only. Before each use, inspect the meter and test leads for any damage. Do not use the device if it appears damaged or is not operating correctly. Refer to local and national safety regulations for electrical work.
- Ensure the device is disconnected from the circuit before connecting or disconnecting test leads.
- Bekræft voltage range of the meter is suitable for the circuit being tested.
- Brug passende personlige værnemidler (PPE).
- Brug ikke måleren i våde forhold eller eksplosive atmosfærer.
3. Opsætning og første idriftsættelse
The MPI-530 is battery-powered, ensuring portability. Before first use, ensure the batteries are adequately charged. The device is designed for intuitive operation with a clear display and ergonomic controls.
3.1. Tænder
Press and hold the power button until the display illuminates. The meter will perform a self-test. Ensure all accessories are securely connected before beginning measurements.

Figure 3.1: The MPI-530 connected to an electrical outlet for testing.
4. Betjeningsvejledning
The MPI-530 offers a wide range of measurement capabilities. Select the desired function using the rotary switch and navigation buttons.
4.1. Measurement of Short Circuit Loop Impedance
- Impedance measurement with resolution 0.001 Ω and 23 A current (44 A phase-to-phase) - short-circuit resistor RZW = 10 Ω.
- Measurement range: 95...440 V, frequency 45...65 Hz.
- Measurement of short circuit loop impedance with resolution 0.01 Ω, in protected systems without tripping RCDs with IΔn ≥ 30 mA.
- Automatic calculation of short-circuit current, differentiating between phase-to-phase and phase-to-neutral voltage.
- Measurements using UNI-Schuko plug with measurement triggering button (also when L and N leads are exchangeable) or 1.2 m, 5 m, 10 m, 20 m test leads, with optional use of 3-phase socket adapters (AGT).
- Selection of installation protections and automatic evaluation of measurements results.
4.2. Tests of Residual Current Devices (RCD), types AC, A, F, B and B+
- Measurement of general, short-time delay and selective RCDs with rated residual current of 10, 30, 100, 300, 500 and 1000 mA.
- Automatic measurement of all RCD parameters (when the START button is pressed, the meter performs the whole measurement cycle, including the L-PE short circuit loop impedance measurement with 15 mA current).
- User selected waveform of forced leakage current: sinusoidal (start from increasing eller decreasing edge), unidirectional pulsating (positive or negative), unidirectional pulsating with DC bias (positive and negative), direct (positive and negative).
- Measurement of tripping current IA using the ramp strøm.
- Measurement of tripping time tA at ½IΔn, 1IΔn, 2IΔn and 5IΔn.
- Måling af berøringsvoltage UB and protective conductor resistance RE without the RCD tripping.
- Detection that L and N conductors are switched in the socket; will not affect the measurement.
- Measurement of tripping current IA and actual tripping time tAI at single activation of RCD.
- Measurement for 95...270 V voltage.
4.3. Målinger af isolationsmodstand
- Test voltage values: 50 V, 100 V, 250 V, 500 V and 1000 V.
- Insulation resistance measurements up to 10 GΩ.
- In-socket measurements using the UNI-Schuko adapter.
- Meter is protected against voltage on the tested object and voltage appearing during the measurement.
- Auto-discharge of the object after the measurement.
- Automatic measurement of all resistance combinations in three-, four- and five core leads using the additional AutoISO-1000C adapter.
- Acoustic signalling of five-second periods to enable determining the time profile during the insulation resistance measurements.
4.4. Lav-voltage Resistance Measurement of Equipotential and Protective Bonding
- Continuity measurement of protective conductor with ≥200 mA current in both directions.
- Low current measurement with sound signal.
- Autocalibration of test leads – leads of any length can be used.
4.5. Earth Resistance Measurements
- Measurement with 3- and 4-pole methods with 2 additional electrodes.
- Measurement with the 3-pole method with an additional clamp.
- Measurement with 2-clamp metode.

Figure 4.1: The MPI-530 being used for outdoor electrical installation testing.
5. Vedligeholdelse
To ensure the longevity and accuracy of your Sonel MPI-530, regular maintenance is recommended.
- Rensning: Brug en blød, damp cloth to clean the exterior of the meter. Do not use abrasive cleaners or solvents.
- Batteripleje: Recharge the batteries regularly, especially if the device will not be used for an extended period. Store the meter with partially charged batteries if storing long-term.
- Opbevaring: Store the meter in a dry, dust-free environment within the specified temperature range.
- Kalibrering: For professional use, periodic calibration by an authorized service center is recommended to maintain measurement accuracy.
6. Fejlfinding
If you encounter issues with your MPI-530, refer to the following common troubleshooting steps. For persistent problems, contact Sonel customer support.
- Måleren tænder ikke: Check battery charge. Ensure batteries are correctly inserted.
- Unøjagtige aflæsninger: Verify test lead connections. Ensure proper measurement mode is selected. Check for external interference. Consider professional calibration if issues persist.
- Visningsfejl: Refer to the error codes in the full manual (if available) or restart the device.
- Ingen reaktion fra knapperne: Ensure the device is not in a locked mode. Restart the meter.
7. Specifikationer
| Feature | Specifikation |
|---|---|
| Mærke | Sonel |
| Model | MPI-530 |
| Strømkilde | Batteridrevet |
| Short Circuit Loop Impedance | 0.001 Ω resolution, 23 A current (44 A phase-to-phase) |
| RCD Test Types | AC, A, F, B, B+ |
| Isolationstest Voltages | 50 V, 100 V, 250 V, 500 V, 1000 V |
| Isolationsmodstandsområde | Up to 10 GΩ |
| Protective Conductor Continuity | ≥200 mA current in both directions |
| Earth Resistance Methods | 3-pole, 4-pole, 3-pole with clamp, 2-clamp |
| Dato først tilgængelig | 24. september 2020 |
| Fabrikant | Sonel |
8. Garanti og support
The Sonel MPI-530 Multifunction Electrical Installation Meter typically comes with a 2 års garanti from the date of purchase, as indicated on product materials. For detailed warranty terms, technical support, service, or calibration, please contact Sonel directly through their official webwebsted eller autoriserede distributører.
For additional protection, extended warranty plans may be available from your retailer.





