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USER MANUAL METER FOR ELECTRICAL INSTALLATION PARAMETERS MPI-502F ● MPI-506 ● MPI-507 SONEL S.A. Wokulskiego 11 58-100 Świdnica Poland Version 2.01 11.03.2022...
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The MPI-502F / 506 / 507 is a modern, state-of-the art measuring instrument, easy to operate and safe. Read this manual to avoid mistakes during the measurements and prevent operational prob- lems. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
5 Troubleshooting ..................... 54 6 Power supply ....................56 6.1 Monitoring the power supply voltage..............56 6.2 Replacing the batteries ..................56 6.3 General rules of using the Nickel Metal Hydride (Ni-MH) batteries ......57 MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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Additional uncertainties according to IEC 61557-5 (R 3P) ........66 11 Accessories ....................67 11.1 Standard accessories .................... 67 11.2 Optional accessories ....................68 12 Manufacturer ....................69 13 Laboratory services ..................70 MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Due to continuous development of the meter’s software, the actual appearance of the display, in case of some of the functions, may slightly differ from the display presented in this operating manual. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Use the ESC button to go to the starting screen of a given function and press ENTER to display the last measurement result. Use the same procedure to display the last measurement result after the meter has been switched off (applies to the measurements of Z, RCD, R and R CONT MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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▪ time to automatic shutdown Bluetooth communication: enabled / disa- bled Change PIN Power supply selection: rechargeable bat- teries / batteries Beeper: enabled / disabled Firmware update ◄ ► Factory reset: yes / no MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Voltage and frequency measurement Set the rotary switch to the U,f position. Read the measurement result: frequency in the main display field, voltage in the auxiliary field. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Make sure that during the measurements you are not standing on an uninsulated floor as this may cause erroneous results. The threshold value, which triggers the signal of exceeded allowable voltage on PE conduit, is approximately 50 V. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
The WS-03 and WS-04 leads are detected by the meter and you cannot select their length (the symbol is displayed). When you are using the leads with banana plugs, before you start the measurements set the correct phase conductor length complying with the test leads length. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
U =220V U [V] U =230V 216 240 415 440 U [V] U =240V voltage ranges for which the U voltage ranges for which the short-circuit current is calculated short-circuit current is calculated MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
L-N circuit, measurement in the L-L circuit The meter is ready for measurement. Phase conductor length or the symbol. or U voltage Press START to perform the measurement. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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Read the main result: the fault loop impedance Z and the mains voltage during the measurement. Press ► to display additional results. Short-circuit current I Fault loop resistance R Fault loop reactance X MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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The measurement result may include a large, unspecified error. Temperature inside the meter has exceeded the allowed limit. The measurement is blocked. The L and N conductors are switched (voltage between the PE and N conductors). MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Connect the test leads as shown in one of the figures. Measurement in L-PE circuit Checking effectiveness of protection against electric shock of the meter housing in case of: TN network or TT network MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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The measurement result may include a large, unspecified error. Temperature inside the meter has exceeded the allowed limit. The measurement is blocked. The L and N conductors are switched (voltage between the PE and N conductors). MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Measurement in a TN-S system Measurement in a TT system Measurement in a TN-C-S system The remaining measurement issues are analogous to the ones described for the measurements in the L-N or L-L systems. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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The measurement result may include a large, unspecified error. Temperature inside the meter has exceeded the allowed limit. The measurement is blocked. The L and N conductors are switched (voltage between the PE and N conductors). MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Set the rotary switch to the R position. Set the measuring voltage according to the fol- lowing algorithm and the rules for setting the general parameters. ▲ ▪ 25 V ▼ ▪ 50 V MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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The meter is ready for measurement. Interference voltage currently on the object Press START to perform the measurement. Read the result. – interference voltage – resistance-to-earth MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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3%, the distance of the current electrode from the earth elec- trode being tested should be considerably increased and the measurements should be repeated. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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– banana plug – probe contact areas are not corroded or loos- ened. In majority of cases the achieved measurement accuracy is satisfactory. However, you should always take account of the uncertainty included in the measurement. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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Signal / noise ratio is too low (interfering signal too large). Error due to the resistance of electrodes > 30 % (for cal- culating uncertainty, measured values are taken into ac- count). MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
▪ 30 mA ▪ t ▪ 25 V short-time delay ▪ 100 mA ▪ 50 V selective ▪ 300 mA ▪ 500 mA Connect the test leads as shown in the figure. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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Press START to perform the measurement. Read the main measurement result: I current. Press ► to read additional results. Tripping time t at the I current Protective conductor resistance for RCD - R MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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Incorrect or unstable power grid frequency. Measurement error – loss of voltage after the measure- ment or RCD tripped during the U or R measurement. Safe touch voltage is exceeded. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
▪ 500 mA In I x n, the multipliers 2 and 5 do not apply to I = 300 mA and 500 mA. Δn Δn Connect the test leads as shown in the figure. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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The meter is ready for measurement. voltage L-PE Press START to perform the measurement. Read the main measurement result: tripping time t Press ► to read additional results. Protective conductor resistance for RCD - Touch voltage U MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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Incorrect or unstable power grid frequency. Measurement error – loss of voltage after the measure- ment or RCD tripped during the U or R measurement. Safe touch voltage is exceeded. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
▪ A ▪ 25 V selective ▪ 30 mA ▪ 50 V short-time delay ▪ 100 mA ▪ 300 mA ▪ 500 mA Connect the test leads as shown in the figure. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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- good, - bad. Use the ENTER button to save the results in the memory, ◄► arrows to view the result components. or the ESC button to go to the voltage display mode. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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RCD in good working order n should trip negative 0.5 I n positive n negative n positive n negative n positive n negative n positive negative MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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Incorrect or unstable power grid frequency. Measurement error – loss of voltage after the measure- ment or RCD tripped during the U or R measurement. Safe touch voltage is exceeded. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
▪ 15 mA pose ▪ 25 V ▪ 30 mA ▪ 50 V selective ▪ 100 mA short-time delay ▪ 300 mA ▪ 500 mA Connect the test leads as shown in the figure. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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– the measurement is discontinued. The measurements which are not possible are automatically skipped, for example and multiplication factor are beyond the meter’s when the selected current I Δn measuring capabilities. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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Incorrect or unstable power grid frequency. Measurement error – loss of voltage after the measure- ment or RCD tripped during the U or R measurement. Safe touch voltage is exceeded. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
3’00” Connect test leads according to the drawing. The R lead can be connected to the blue or ISO+ red socket. The meter is ready for measurement. Voltage present on tested object. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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When the measurement cycle is upheld by pressing ENTER it is indicated by: a short break in the beep, when the test voltage has not reached 90% or exceeded 110% of set value, MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
(as illustrated in fig- ure below). Quite often current limitation may occur in the first phase of the measurement due to charging the capacity of the tested object. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Set the rotary switch to the R position. CONT Set auto-zeroing according to the following algorithm. R ◄► R ◄► AUTO-ZERO CONT Close the test leads. Press START to commence the auto-zeroing. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Low-current resistance measurement Switch on the meter. Set the rotary switch to the R position. CONT If necessary, set the R measurement according to the following algorithm. AUTO- ◄► ◄► CONT ZERO MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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(both leads). Message (displayed after the measurement) indicates sig- nificant disturbances in the mains during measurement. The measurement result may include a large, unspecified error. Measurement range is exceeded. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
The result is the arithmetic mean of the values of two measurements at a current of 200 mA with opposite polarities R and R CONT- CONT+ CONT CONT MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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Possible causes: too much disturbances in the measured object, instability of the object or of the meter’s connection with the object (unreliable galvanic connection). Measurement range is exceeded. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Connect test leads according to the drawing. A set of lines displayed on the bargraph indi- cates the phase sequence: directed to the right - correct, directed to the left - opposite. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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Individual phase-to-phase voltages may be read using ◄► buttons. By pressing the ◄► buttons you can return to the display of the phase sequence. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Cell includes the same type of result that is to be entered. Cell is occupied by the displayed type of meas- urement results. Cell is occupied by the displayed types of meas- urement results. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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RCD. The saved data include a complete set of results (main and additional) for a given measurement function plus the set measurement parameters. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
The bank and cell number which you wish to browse is changed with the SET/SEL button and then with the ▲▼ arrows. If the cell/ bank number is flashing, it can be changed. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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n at 5 I n at 5 I n (absence for RCD AUTO) (absence for RCD AUTO) as above (12 rows) for pulsating current and U and I CONT CONT CONT- CONT+ MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Press ENTER to start deleting or ESC to abort. The deletion progress is shown on the screen as scrolling cell numbers. When deletion is completed, the meter generates three short audio signals and sets the cell number to 1. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
The deletion progress is shown on the screen as scrolling bank and cell numbers. When deletion is completed, the meter generates three short audio signals and sets the cell number to 1. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
In order to ensure the communication of the meter with a computer, additional Bluetooth module and software is required. A program that may be used for this purpose is Sonel Reader. It allows us- ers to read and display the measurement data stored in the meter memory. This program may be downloaded free from the manufacturer's website.
The meter indicates the val- ues close to zero or zero irre- spective of the measurement Incorrectly chosen test leads Fault loop location, and displayed val- in the meter settings. ues are significantly different than expected. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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Rotary switch is not set cor- measurements of earth loop param- ceeds the detector tripping rectly. eters and RCD, with the exception of threshold (about 50 V). the Z function. L-N,L-L L-N,L-L MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Discharging characteristics of batteries and rechargeable batteries are different. If batteries leak in the compartment, send the meter to the service outlet. Rechargeable batteries should be charged in an external charger. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
The probes can be cleaned with water and then wiped dry. Before longer storage, it is recom- mended to lubricate the probes with any machine grease. Clean the spools and leads with water and detergents, then wipe dry. The meter electronic system is maintenance free. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Used electronic equipment shall be sent to the collection point according to the Used Electric and Electronic Equipment Act. Before sending the instrument to the collection point, do not dismantle any parts by yourself. Observe local regulations on disposal of packagings and used batteries. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Resolution Accuracy (5% + 5 digits) of Z 0…19.99 Ω 0.01 Ω value 20.0…199.9 Ω 0.1 Ω (5% + 5 digits) of Z value <200 Ω Calculated and displayed values Z MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
(which is used for displaying). As the correct value, consider I current value, displayed by the meter or by firmware. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
n for 0.5 I ..........................-8…0% n RMS leakage current during the RCD tripping time measurement Multiplication factor setting n 10.5 MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
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1 mA 105…420 mA 300 mA It is possible to start the measurement from positive or negative half-period of forced residual current Test current flow time ....................max. 3200 ms MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
1 Ω Voltage on open terminals: 4…20 V Short-circuit current I : 8…15 mA Audio signal for measured resistance < 30 Ω ± 50% Test leads resistance compensation MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
CAT III 150 V to ground (max 150 V between inputs) or CAT IV 100 V to ground (max 100 V be- tween inputs). Markings and symbols indicated on the instrument are to be considered valid when us- ing it at altitude lower than 2000 m. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Influence of serial interference voltage on the resistance meas- urements for function R Additional uncertainty [Ω] ±(0.001R 25 V +0.01)U +0.007U 0,00…10,00 Ω ±(0.001R 50 V +0.01)U +0.004U 10.01…1999 Ω ±(0.001R 25 V, 50 V +0.01)U +0.001U MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
±0,07%/°C ± 0,2 digit/°C for R≥1 kΩ According to the formulas shown Serial interference voltage in sec. 10.3.4 =3 V 50/60 Hz) Resistance of auxiliary elec- According to the formula in trodes sec. 10.3.5 MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
5 / 10 / 20 m long Test lead red 1 kV (banana plugs) WAPRZ005REBB WAPRZ010REBB WAPRZ020REBB 5-lead version 4-lead version Three-phase socket adapter 16 A AGT-16P AGT-16C WAADAAGT16P WAADAAGT16C MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
Wokulskiego 11 58-100 Świdnica Poland tel. +48 74 858 38 60 fax +48 74 858 38 09 E-mail: export@sonel.pl Web page: www.sonel.pl NOTE! Service repairs must be performed solely by the manufacturer. MPI-502F ● MPI-506 ● MPI-507 – USER MANUAL...
National Metrological Institute. According to ILAC-G24 „Guidelines for determination of calibration intervals of measuring instru- ments”, SONEL S.A. recommends periodical metrological inspection of the instruments it manufac- tures no less frequently than once every 12 months.
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MEASUREMENT MESSAGES NOTE! The meter is designed for operation at rated phase voltages of 220 V, 230 V and 240 V and phase-to-phase voltages of 380 V, 400 V, 415 V. Connecting voltage higher than allowed between any of the test terminals may damage the meter and cause a hazard to the user.
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