Sonel MPI-540 User Manual

Meter for electrical installation parameters

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Summary of Contents for Sonel MPI-540

Page 3 USER MANUAL METER FOR ELECTRICAL INSTALLATION PARAMETERS MPI-540 SONEL S.A. Wokulskiego 11 58-100 Świdnica Version 1.00 31.10.2018...
Page 4 MPI-540 meter is a modern, easy in use and safe measuring device. Please acquaint your-self with this manual in order to avoid measuring errors and prevent possible problems in operation of the me- ter. MPI-540 – USER MANUAL...
Page 5: Table Of Contents
Settings of measurements ..................... 83 3.8.2 Measurement using probes.................... 88 3.8.3 Measurements using UNI-Schuko adapter (WS-03 and WS-04) ........90 3.8.4 Measurements using AutoISO-1000c ................93 3.9 Low-voltage measurement of resistance ............... 97 3.9.1 Measurement of resistance .................... 97 MPI-540 – USER MANUAL...
Page 6 5 Memory of the meter ..................152 5.1 Memory of measurements ................... 152 5.1.1 Memory settings ......................152 5.1.2 Structure of the Memory ....................153 a. Fundamentals of navigating the Memory menu ............154 b. Adding a new measurements tree ................156 MPI-540 – USER MANUAL...
Page 7 Memory Card ....................165 5.2.2 USB external memory (flash drive) ................165 5.2.3 Compatibility with Sonel Analysis software ..............166 5.2.4 PC connection and data transmission ................166 6 Power supply ....................167 6.1 Monitoring of the battery charge status ..............167 6.2 Replacing rechargeable batteries ................
Page 8 11.2.4 Clamps C-6A ....................... 198 11.2.5 Clamps C-7A ....................... 199 11.2.6 Clamps F-1A, F-2A, F-3A .................... 200 11.2.7 Clamps N-1 ........................202 12 Positions of the meter’s cover ..............203 13 Manufacturer ....................203 14 Laboratory services ..................204 MPI-540 – USER MANUAL...
Page 9: Safety
Safety MPI-540 meter is designed for performing check tests of protection against electric shock in AC mains systems and recording the parameters of electric mains. The meter is used for making meas- urements and providing results to determine safety of electrical installations. Therefore, in order to...
Page 10: Main Menu
Recorder – measurement of electrical parameters of the tested network. The description of the recording mode is provided in section 4,  Settings – going to the settings of the main functions and parameters of the meter, MPI-540 – USER MANUAL...
Page 11: Meter Settings
The date, time and display brightness can be set from the Meter settings screen level. main menu select Settings. Select Meter settings Parameters to change  Date and time (section 2.1.1)  Auto off (section 2.1.2)  Display (section 2.1.3) MPI-540 – USER MANUAL...
Page 12: Setting Date And Time
(step Delete the existing entry and enter the required value manually. Functions of icons reject the changes and return to step accept changes and go to step MPI-540 – USER MANUAL...
Page 13: Automatic Shutdown
(figure): Yes – accept selection, No – reject changes, Cancel – cancel the action saving changes return to the main menu 2.1.2 Automatic shutdown Select Auto off. Select the required option. MPI-540 – USER MANUAL...
Page 14 After touching the icon you may be prompted to save or reject changes (figure): Yes – accept selection, No – reject changes, Cancel – cancel the action saving changes return to the main menu MPI-540 – USER MANUAL...
Page 15: Display Parameters
After touching the icon you may be prompted to save or reject changes: Yes – accept selection, No – reject changes, Cancel – cancel the action saving changes return to the main menu MPI-540 – USER MANUAL...
Page 16: Settings Of Measurements
This selec- tion ensures optimum interference filtering. The meter is designed for filtration of interferences gener- ated by 50 Hz and 60 Hz networks.  Setting Autoincrementing as active ( ) causes each saved measurement (section MPI-540 – USER MANUAL...
Page 17 Description of function icons return previous screen. After touching the icon you may be prompted to save or reject changes: Yes – accept selection, No – reject changes, Cancel – cancel the action saving changes returning main menu MPI-540 – USER MANUAL...
Page 18: Sub-Menu Edit Fuses
On the Fuse base screen the following parameters of circuit breakers can be defined and edited:  manufacturer,  model (type) of fuse,  characteristic of fuse. a. Adding security characteristics  Select the icon.  A menu will appear for adding security time-current character- istics. MPI-540 – USER MANUAL...
Page 19 Enter the name from the touch keypad (holding certain buttons for a longer time triggers Polish char- acters). Functions of icons rejecting changes and return- ing to step accepting changes and going to step MPI-540 – USER MANUAL...
Page 20 Activate the created characteris-  Add rated fuse current using icon  Editing security data proceed as in steps  To activate a row of data, select any item in the row.  Icons will be activat- MPI-540 – USER MANUAL...
Page 21 Cancel – cancel changes You will be prompted to conform the selection. Description of function icons Yes – accept selection No – reject changes To change the contents of a se- lected cell, touch it twice. MPI-540 – USER MANUAL...
Page 22: Adding Fuses
 Highlight the column where data will be entered.  Select . The fuses manage- ment menu will appear. Description of function icons show/hide management menu record inactive record active add new record close management menu MPI-540 – USER MANUAL...
Page 23 Touch the name input field. Enter the name from the touch keypad (holding certain buttons for a longer time triggers Polish char- acters). Functions of icons reject the changes and return to step accept changes and go to step MPI-540 – USER MANUAL...
Page 24  Highlight the manufacturer.  Activate the Type column.  Enter the security model as in steps MPI-540 – USER MANUAL...
Page 25 Description of function icons Ok – accept selection Cancel – cancel the action Select icon to hide the function menu. Description of function icons return to the previous screen saving changes return to the main menu MPI-540 – USER MANUAL...
Page 26: Communication
It enables data reading from the recorder and data analysis.  Sonel Reader – the software is used to retrieve the data saved from the meter memory. In addition, it enables data transfer to the PC, data saving in popular formats and printing.
Page 27: Regional Settings
If the changes have not been saved or the icon was select- ed, a prompt will appear to confirm the selection. Description of function icons Yes – accept selection No – reject selection Cancel – cancel the action MPI-540 – USER MANUAL...
Page 28: Meter Information
Description of function icons return to the previous screen (you may be prompted to save or reject changes) display detailed information return to the main menu The screen after selecting icon MPI-540 – USER MANUAL...
Page 29: Measurements
 The result of the last measurement is displayed until: next measurement starts, measurement parameters are changed, measurement function is changed, the meter is switched off.  The last measurement can be recalled using the icon. MPI-540 – USER MANUAL...
Page 30: Diagnostics Performed By The Meter - Limits
Measuring function     L-PE   L-PE[RCD]    RCD I   RCD t CONT  Phase sequence  Motor rotation  Resistance-to-earth R  Soil resistivity Illuminance   Recorder MPI-540 – USER MANUAL...
Page 31: Checking The Correctness Of Pe (Protective Earth) Connections
If the voltage on the PE conductor exceeds the acceptable limit value (approx 50 V), the meter will signal the fact.  If the IT network has been selected in section 2.2.1 step , the contact electrode is inactive. MPI-540 – USER MANUAL...
Page 32: Measurement Of Fault Loop Parameters
If a WS type adapter has not been connected to the meter, standard manufacturer's lead lengths are available in the menu. In this case, touch the drop-down list field. MPI-540 – USER MANUAL...
Page 33  rated network voltage U  voltage measured by the me- ter U The physical meaning of the pa- rameter is presented in section 3.4.5.  Touch the drop-down list field. Select the required value. MPI-540 – USER MANUAL...
Page 34 The current is calculated after set- ting parameters in steps – current ensuring automatic triggering of a protective device within a required time. Description of function icons Ok – accept security settings Cancel – cancel the action MPI-540 – USER MANUAL...
Page 35: Measurement Of Fault Loop Parameters In The L-N And L-L Circuits
3.4.2 Measurement of fault loop parameters in the L-N and L-L circuits Connect test leads according to the drawing for measurement in the L-N circuit, for measurement in the L-L circuit. Select item Z MPI-540 – USER MANUAL...
Page 36 3.4.1, step not met assessment not possible – current ensuring automatic triggering of a selected protective device within a required time After selecting the bar on the right side, a menu will show with additional measurement results. MPI-540 – USER MANUAL...
Page 37 This limitation is due to the high current measurement and multi- functionality of the meter.  Minimum interval between successive measurements is 5 seconds. The displayed message indicates that it is possible to perform another measurement. Until the message is displayed, the meter prevents any measurements. MPI-540 – USER MANUAL...
Page 38 The voltage on the tested object is not within the limits specified for the set rated voltage of the network U (sec- tion 2.2.1 step Too low value of the prospective short circuit current I the pre-set security and time of its triggering. MPI-540 – USER MANUAL...
Page 39: Measurement Of Fault Loop Parameters In The L-Pe Circuit
Connect test leads according to Fig. 3.1 or Fig. 3.2. Fig. 3.1 Measurement in L-PE circuit Fig. 3.2 Checking effectiveness of protection against electric shock of the meter housing in case of: TN network or TT network MPI-540 – USER MANUAL...
Page 40 L-PE – prospective short-circuit cur- rent with signalling the fulfilment of acceptable loop criterion (section 3.4.1, step not met assessment not possible – current ensuring automatic triggering of a selected protective device within a required time MPI-540 – USER MANUAL...
Page 41 This limitation is due to the high current measurement and multi- functionality of the meter.  Minimum interval between successive measurements is 5 seconds. The displayed message indicates that it is possible to perform another measurement. Until the message is displayed, the meter prevents any measurements. MPI-540 – USER MANUAL...
Page 42: Measurement Of Fault Loop Impedance In L-Pe Circuit Protected With A Residual Current Device (Rcd)
Measurement of fault loop impedance in L-PE circuit protected with a residual current device (RCD) Connect test leads according to Fig. 3.3, Fig. 3.4 lub Fig. 3.5. Fig. 3.3 Measurement in the TN-S system Fig. 3.4 Measurement in the TT system MPI-540 – USER MANUAL...
Page 43 Fig. 3.5 Measurement in the TN-C-S system Select item Z L-PE[RCD] MPI-540 – USER MANUAL...
Page 44 – current ensuring automatic triggering of a selected protective device within a required time After selecting the bar on the right side, a menu will slide out with additional measurement re- sults. MPI-540 – USER MANUAL...
Page 45: Prospective Short-Circuit Current
U – voltage dependent on the network rated voltage settings U (section 3.4.1 point U = U U = U for U < U ≥ U U = U for U where: – nominal voltage of the network, – voltage measured by the meter. MPI-540 – USER MANUAL...
Page 46 L-N' L-L' Zakresy napięć U , dla których Zakresy napięć U , dla których short-circuit current is calculated circuit current is calculated liczony jest prąd zwarciowy liczony jest prąd zwarciowy Fig. 3.6 Measuring voltage ranges MPI-540 – USER MANUAL...
Page 47: Measurement Of Fault Loop Impedance In It Networks
The manner of connecting the device to the installation is shown in Fig. 3.7. The manner of performing the fault loop measurements is described in section 3.4.2. Operating voltage range: 95 V … 440 V. Fig. 3.7 Measurement in the IT system MPI-540 – USER MANUAL...
Page 48: Measurement Of Resistance-To-Earth
Measurement of resistance-to-earth 3.5.1 Settings of measurements Select item R Touch the parameter drop-down menu Un (measuring voltage se- lection). Select the required measuring voltage from the list. MPI-540 – USER MANUAL...
Page 49 Touch the drop-down menu of measurement method selection. Available measurement methods  3-wire  4-wire  3-wire + receiving clamp  2-wire (transmitting + receiv- ing clamp) Select Limit to set the resistance limit. MPI-540 – USER MANUAL...
Page 50  Select unit.  Enter the required resistance limit value:  0.00…1990 for Ω,  0.00…2 for kΩ. Functions of icons reject changes and exit to the previous screen accept changes MPI-540 – USER MANUAL...
Page 51: Measurement Of Resistance To Earth Using 3P Method
The earth electrode being tested should be connected to E socket of the meter.  It is recommended that the tested earth electrode as well as H and S electrodes should be located along one line and at relevant distances, in accordance with the rules of earth measurements. MPI-540 – USER MANUAL...
Page 52 (section 3.5.1 step the result is within the set limit the result is outside the set lim- assessment not possible After selecting the bar on the right side, a menu will slide out with additional measurement re- sults. MPI-540 – USER MANUAL...
Page 53 24 V. Voltage of interferences is measured up to the level of 100 V.  Over 50 V it is signalled as hazardous. The meter must not be connected to voltages exceeding 100 V. MPI-540 – USER MANUAL...
Page 54 Signal / noise ratio is too low (interfering signal too large). Error due to the resistance of electrodes > 30 % (for calcu- lating uncertainty, measured values are taken into account). Interruption in measuring circuit or resistance of test probes is higher than 60 kΩ. MPI-540 – USER MANUAL...
Page 55: Measurement Of Resistance To Earth Using 4P Method
Drive the voltage electrode into the earth and connect to the S socket of the meter.  The earth electrode being tested should be connected to E socket of the meter with the lead.  ES socket should be connected to the tested earth electrode below E lead. MPI-540 – USER MANUAL...
Page 56 (section 3.5.1 step the result is within the set limit the result is outside the set limit assessment not possible After selecting the bar on the right side, a menu will slide out with additional measurement re- sults. MPI-540 – USER MANUAL...
Page 57 24 V. Voltage of interferences is measured up to the level of 100 V.  Over 50 V it is signalled as hazardous. The meter must not be connected to voltages exceeding 100 V. MPI-540 – USER MANUAL...
Page 58 Signal / noise ratio is too low (interfering signal too large). Error due to the resistance of electrodes > 30 % (for calcu- lating uncertainty, measured values are taken into account). Interruption in measuring circuit or resistance of test probes is higher than 60 kΩ. MPI-540 – USER MANUAL...
Page 59: Measurement Of Resistance To Earth Using 3P + Clamps Method
The arrow on the clamps must be directed in accordance with the direction of the current flowing into the ground. Select the 3P + clamps option in the measurement menu. Select other settings in accord- ance with section 3.5.1. MPI-540 – USER MANUAL...
Page 60 – resistance of current elec- trode – resistance of voltage elec- trode δ – additional uncertainty caused by resistance of the electrodes Selecting the bar hides the menu. MPI-540 – USER MANUAL...
Page 61 Then, the ratio of resistance of the probes to resistance of the tested earth electrode is very high and consequently, uncertainty of measurement that depends on this ratio is also MPI-540 – USER MANUAL...
Page 62 Interruption in measuring circuit or resistance of test probes is higher than 60 kΩ. Interruption in the test probe circuit. Interruption in the voltage probe circuit. Too small test current. No continuity in the current clamps circuit. MPI-540 – USER MANUAL...
Page 63: Measurement Of Resistance To Earth Using Double Clamp Method
 For ring earth electrodes (step variant ) the method allows switching off to determine continuity of the measured earth electrode point with the rest of the earth electrode. MPI-540 – USER MANUAL...
Page 64 Press START to start the measurement. Read out the result. Signal lights for the limit (sec- tion 3.5.1 step the result is within the set limit the result is outside the set limit assessment not possible MPI-540 – USER MANUAL...
Page 65 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). Too small test current. No continuity in the current clamps circuit. MPI-540 – USER MANUAL...
Page 66: Measuring Soil Resistivity
 ρ = 2 where: L – distance between the electrodes (all distances must be equal), – measured resistance. 3.6.1 Settings of measurements Select item Ωm. Touch the parameter drop-down menu Un (measuring voltage se- lection). MPI-540 – USER MANUAL...
Page 67 Select Limit to set the soil resis- tivity limit.  Select unit.  Enter the required resistance limit value:  Ωm: 0…99 900,  kΩm: 0…100. Functions of icons reject changes and exit to the previous screen accept changes MPI-540 – USER MANUAL...
Page 68: Main Elements Of The Screen
– resistance of current elec- trode – resistance of voltage elec- trode δ – additional uncertainty caused by resistance of the electrodes Selecting the bar hides the menu. MPI-540 – USER MANUAL...
Page 69: Soil Resistivity Measurements
Drive 4 probes into the ground in one line and at equal distances.  Connect the probes to the meter according to the figure above.  Call measurement menu.  Select other settings in accord- ance with section 3.6.1. MPI-540 – USER MANUAL...
Page 70 (range 1…30 m) Functions of icons reject changes and exit to the previous screen accept changes The meter is ready for measure- ment. Press START to start the meas- urement. MPI-540 – USER MANUAL...
Page 71 24 V. Voltage of interferences is measured up to the level of 100 V.  Over 50 V it is signalled as hazardous. The meter must not be connected to voltages exceeding 100 V. MPI-540 – USER MANUAL...
Page 72 Signal / noise ratio is too low (interfering signal too large). Error due to the resistance of electrodes > 30 % (for calcu- lating uncertainty, measured values are taken into account). Interruption in measuring circuit or resistance of test probes is higher than 60 kΩ. MPI-540 – USER MANUAL...
Page 73: Measurement Of Rcd Parameters
RCD t has been select- For RCD I the following pa- rameters are available: – RCD tripping current, – voltage measured on PE, – PE continuity, – RCD triggering time when measuring tripping current. MPI-540 – USER MANUAL...
Page 74 – voltage measured on PE, – PE continuity, – RCD triggering time when given the rated differential cur- rent ratio. Select to define the meas- uring voltage. Select the required measuring voltage from the list. MPI-540 – USER MANUAL...
Page 75 RCD test. The set current is ratio of the rated residual current of the tested circuit breaker. The correctness of the assess- ment of the test circuit breaker efficiency is dependent on the rated residual current. MPI-540 – USER MANUAL...
Page 76 Determine the waveform of the measuring current. In the menu you can the wave- form of the current, which will be used to test the RCD.  Touch the drop-down list field.  Select the waveform of the measuring current. MPI-540 – USER MANUAL...
Page 77 Determine the type of circuit breaker. Available circuit breaker types general purpose short-time delay type selective MPI-540 – USER MANUAL...
Page 78: Measurement Of Rcd Disconnection Current
3.7.2 Measurement of RCD disconnection current Connect the meter to the installation according to the drawing. Select item RCD I Enter the measurement settings in accordance with section 3.7.1. MPI-540 – USER MANUAL...
Page 79 – RCD triggering time with flow of RCD disconnecting current. Selecting the bar hides the menu. Save the measurement to the meter memory using the icon. A detailed description of memory management is contained in section 5.1.3. MPI-540 – USER MANUAL...
Page 80 Phase connected to N terminal instead of L terminal (for example, exchange of L and N in the mains socket). Network frequency is outside the range of 45...65 Hz. PE conductor connected incorrectly. Measurement error. Before measurement, voltage at test terminals exceeds 500 V. MPI-540 – USER MANUAL...
Page 81: Measurement Of Rcd Disconnection Time
3.7.3 Measurement of RCD disconnection time Connect the meter to the installation according to the drawing. Select item RCD t Enter the measurement settings in accordance with section 3.7.1. MPI-540 – USER MANUAL...
Page 82 Selecting the bar hides the menu. Save the measurement to the meter memory using the icon. A detailed description of memory management is contained in section 5.1.3. The last measurement can be recalled using the icon. MPI-540 – USER MANUAL...
Page 83 L and N in the mains socket). Maximum temperature of the meter is exceeded. Network frequency is outside the range of 45...65 Hz. PE conductor connected incorrectly. Measurement error. Before measurement, voltage at test terminals exceeds 500 V. Voltage exceeded. MPI-540 – USER MANUAL...
Page 84: Measurements In It Networks
Fig. 3.9 RCD testing without the PE conductor The manner in which the measurements of current and the RCD triggering time has been de- scribed in section 3.7.2, 3.7.3. Operating voltage range: 95 V … 270 V. MPI-540 – USER MANUAL...
Page 85: Measurement Of Insulation Resistance
UNI-Shuko adapter, AutoISO-1000c adapter If separate leads with probes have been connected to the me- ter, select the required option from the menu: single measurement mode, continuous measurement mode. MPI-540 – USER MANUAL...
Page 86  3 wires – measuring a 3-core cable,  4 wires – measuring a 4-core cable,  5 wires – measuring a 5-core cable. Touch the drop down menu to set the measuring voltage Un. MPI-540 – USER MANUAL...
Page 87  Auto – the meter automati- cally selects measurement duration depending on the capacity of the object meas- ured  30 s  60 s  Custom – manual setting of time within the range of 1…60 s MPI-540 – USER MANUAL...
Page 88 1…60 s. Functions of icons reject changes and exit to the previous screen accept changes Description of function icons Ok – accept selection Cancel – reject changes MPI-540 – USER MANUAL...
Page 89 Ranges:  kΩ: 0…2 000 000,  MΩ: 0.0…2000.0,  GΩ: 0.000…2.000. Functions of icons rejecting changes and exit to the previous screen accepting changes returning previous screen going to the main menu MPI-540 – USER MANUAL...
Page 90: Measurement Using Probes
Connect test leads according to the drawing. Press and hold the START but- ton. The measurement is performed continuously when the START is held in the pressed position. In order to interrupt the meas- urement, press START. MPI-540 – USER MANUAL...
Page 91 If it is displayed after the measurement, it means that the measurement result was obtained during operation with a current limiting device (e.g. short circuit on the test object). MPI-540 – USER MANUAL...
Page 92: Measurements Using Uni-Schuko Adapter (Ws-03 And Ws-04)
, to call up the measurement menu. Connect WS-03 adapter WS-04 adapter with UNI-Schuko outlet plug. The meter detects this fact auto- matically and changes the ap- pearance of the screen. Enter the measurement settings in accordance with section 3.8.1 MPI-540 – USER MANUAL...
Page 93 The display shows the symbol of the resistance being measured and the progress bar of this measurement. The progress bar indicates the status of the measurement. The measurement may be can- celled at any time using the icon. MPI-540 – USER MANUAL...
Page 94 If it is displayed after the measurement, it means that the measurement result was obtained during operation with a current limiting device (e.g. short circuit in the test object). MPI-540 – USER MANUAL...
Page 95: Measurements Using Autoiso-1000C
Select item R , to call up the measurement screen. Connect AutoISO-1000c adapter. The meter detects this fact auto- matically and changes the ap- pearance of the screen. Enter the measurement settings in accordance with section 3.8.1. MPI-540 – USER MANUAL...
Page 96 First, checking of voltages on par- ticular pairs of wires is performed. If any of the voltages exceeds al- lowable voltage, the symbol of this voltage is displayed (e.g. VOLTAGE! L1PE), measurement is interrupted. MPI-540 – USER MANUAL...
Page 97 Save the measurement to the meter memory using the icon. A detailed description of memory management is contained in section 5.1.3. The last measurement can be recalled using the icon. MPI-540 – USER MANUAL...
Page 98 If it is displayed after the measurement, it means that the measurement result was obtained during operation with a current limiting device (e.g. short circuit in the test object). MPI-540 – USER MANUAL...
Page 99: Low-Voltage Measurement Of Resistance
Follow the on-screen prompts. Description of function icons Yes – accept selection No – cancels the action After selecting Yes the meter will give the result reduced by the resistance of test leads. MPI-540 – USER MANUAL...
Page 100 The meter is ready for measure- ment.  Connect the meter to the tested object.  Measurement starts automati- cally.  During the measurement the H.V./REC/CONT. diode is lit green and a sound signal is emitted. Read out the result. MPI-540 – USER MANUAL...
Page 101 Additional information displayed by the meter Measurement in progress Incorrect voltage on object. Interference voltage occurs on the tested object. The meas- urement is possible however it will be burdened with addi- tional uncertainty that is specified in the technical data. MPI-540 – USER MANUAL...
Page 102: Measurement Of Resistance Of Protective Conductors And Equipotential Bonding With ±200 Ma Current
Description of function icons Yes – accept selection No – cancels the action After selecting Yes the meter will measure resistance of test leads 3 times. Then it will give the re- sult reduced by this resistance. MPI-540 – USER MANUAL...
Page 103 Using the on-screen keyboard de- lete the existing value and enter the required one. Range: 0…400 Ω Functions of icons reject changes and exit to the previous screen accept changes MPI-540 – USER MANUAL...
Page 104 (step the result is within the set limit the result is outside the set limit assessment not possible After selecting the bar on the right side, a menu will slide out with additional measurement re- sults. MPI-540 – USER MANUAL...
Page 105 Measurement in progress. Too high voltage on the tested object. Interference voltage occurs on the tested object. The meas- urement is possible however it will be burdened with addi- tional uncertainty that is specified in the technical data. MPI-540 – USER MANUAL...
Page 106: Checking Sequence Of Phases
Select item Phase sequence, to call up the measurement screen. Connect the meter to the installation according to the drawing. The meter ready for testing. L1-L2 L2-L3 L3-L1 values of phase-to-phase voltag- signalling the presence of indi- vidual phases MPI-540 – USER MANUAL...
Page 107 The phase sequence is correct, i.e. the phase sequence is in clockwise direction. The phase sequence is incor- rect, i.e. the phase sequence is in anticlockwise direction. MPI-540 – USER MANUAL...
Page 108: Checking The Motor Rotation Direction
The meter ready for testing.  Connect the meter to the mo- tor according to the drawing, i.e. U terminal do input L1, V to L2, W to L3.  Vigorously rotate the motor shaft to the right. MPI-540 – USER MANUAL...
Page 109 3-phase network will rotate the shaft to the left.  Do not move the test leads during the test.  Moving disconnected test leads, may induce voltages that result in indicating the di- rection of rotation. MPI-540 – USER MANUAL...
Page 110: Illuminance Measurements
 Select unit.  Delete the previous value and enter a new one from the range of 0…20 000 lx. Functions of icons reject changes and exit to the previous screen accept changes MPI-540 – USER MANUAL...
Page 111 Save the measurement to the meter memory using the icon. A detailed description of memory management is contained in section 5.1.3. MPI-540 – USER MANUAL...
Page 112: Recorder
Recorder Functional Description MPI-540 meter can be used as a 3-phase recorder of power supply parameters. It allows measure- ment and recording of parameters of 50/60 Hz power networks such as voltage, current, power, har- monics values, etc. To switch to the meter to power supply quality analyzer mode, select Recorder on the main screen.
Page 113 The meter is compatible with PC software Sonel Analysis, which also supports other analyzers pro- duced by Sonel. This software allows analysis of the recorded data. The data may be read using the USB cable or directly from a microSD card after inserting it to an external memory card reader con- nected to PC.
Page 114: Main Elements Of The Screen
The fact of introducing a change that has not been saved yet is indicated by the * symbol in the screen header. Main window Information bar on current network configuration , Function icons bar Active menu help  Visualisation of connection systems  Explanation of icons MPI-540 – USER MANUAL...
Page 115: Top Bar
Title bar The title bar (Fig. 4.2, element ) displays the name of the current main window with the name of the section. It allows the user to quickly see which part of the interface is displayed. MPI-540 – USER MANUAL...
Page 116: Main Window
3-phase 3-wire system with the measurement of currents using Aron's method, 4.2.5 Help On the right side of the title bar the help icon is seen (Fig. 4.2, element ). After its selection, a context help is displayed, which describes interface elements visible on the screen. MPI-540 – USER MANUAL...
Page 117: Connecting The Measuring System
(Analyzer settings Clamps) The following figures show schematically how to connect the analyzer to the tested network de- pending on its type. Fig. 4.4 Wiring diagram – single phase MPI-540 – USER MANUAL...
Page 118 Fig. 4.5 Wiring diagram – 2-phase Fig. 4.6 Wiring diagram – 3-phase with four operating wires MPI-540 – USER MANUAL...
Page 119 Fig. 4.7 Wiring diagram – 3-phase with three operating wires Fig. 4.8 Wiring diagram – 3-phase with three operating wires (measurement of currents using Aron method) MPI-540 – USER MANUAL...
Page 120: Verifying The Connection
The icon is displayed in the top control bar in the following way: if the table includes is at least one if the table includes is at least one , but there is no error (no if all measured parameters are correct. MPI-540 – USER MANUAL...
Page 121: Recording Configuration
Item sorting is performed by tapping the header. The first row of the table contains the active config- uration. In the next rows the item will be sorted:  in ascending order (symbol next to the header),  in descending order (symbol next to the header). MPI-540 – USER MANUAL...
Page 122: Recording Configuration
"YYYY-MM-DD hh_mm_ss_settings" format, which may be modified. An asterisk after the name indicates that the configuration has been modified but not saved. Fig. 4.10. Recording configuration – general settings MPI-540 – USER MANUAL...
Page 123  change the name of configuration,  set the saved configuration as active ( ) or inactive (  accept the selection (Ok),  cancel the selection (Cancel) return to the main menu of the recorder mode MPI-540 – USER MANUAL...
Page 124: Analyzer Settings
If the clamps have not been attached in accordance with the direction of the current flow, this infor- mation can be entered into the meter. Then the recorder readings will be automatically corrected. This is useful in situations where the physical reversing of clamps is impossible or difficult. MPI-540 – USER MANUAL...
Page 125: Settings - Regional Settings
 A, B, C,  phase colours. Wire colouring schemes are available for:  the European Union,  Australia,  India,  China,  the United States,  plus two additional schemes (U1, U2), configurable by the user. MPI-540 – USER MANUAL...
Page 126: Managers - File Manager
Analyzer setting menu saving changes returning to the main menu of the recorder mode Managers – file manager 4.5.3 On the Analyzer settings – file manager screen recordings saved to the memory of the meter can be viewed. MPI-540 – USER MANUAL...
Page 127: Data Viewing
After the icon has been selected, filtering options appear (possibility of multiple selection, the active filter icon is orange): saved waveforms configuration file screenshots with waveforms returning to the Analyzer setting menu removing active ( ) record. returning to the main menu of the recorder mode MPI-540 – USER MANUAL...
Page 128: Data Preview
). To do this, dou- ble-tap the required item (Fig. 4.12). Fig. 4.12 Preview of a sample screenshot Description of function icons previous screenshot next screenshot return to the file manager return to the main menu of the recorder mode MPI-540 – USER MANUAL...
Page 129: Live Mode Of The Network
A sample screen is shown in Fig. 4.13 Use labels on the right side of the window to switch on and off individual measuring channels (at least one waveform must be always visible). Each label includes the name of the channel (for example "U L1") and its effective value. Fig. 4.13. "Live" mode - waveforms MPI-540 – USER MANUAL...
Page 130 To zoom out – bring together the two fingers touching the screen).  Waveforms return to their default size after turning on/off any channel (buttons on the right side). MPI-540 – USER MANUAL...
Page 131: Timeplot Of Effective Values
The graph will be enlarged. After zooming in it may be moved with a finger up, down and to the sides after selecting this icon graph will be zoomed out in steps. selecting this icon closes the zooming menu (also, the may be selected) MPI-540 – USER MANUAL...
Page 132: Live" Mode - Tabular View
L2 ....... phase values L2, L3 ....... phase values L3, N ......... voltage values of the current channel I L1-2 ......phase-to-phase values L1-L2, L2-3 ......phase-to-phase values L2-L3, L3-1 ......phase-to-phase values L3-L1, Σ ......... total values. MPI-540 – USER MANUAL...
Page 133 (can also be moved using a finger) icon for selecting the view type. An additional menu appears, where type of view of the LIVE mode can be changed screenshot return to the main menu of the recorder mode MPI-540 – USER MANUAL...
Page 134: Vector Diagram Of Fundamental Components (Phasor)
Fig. 4.16. "Live" mode - phasor graph Description of function icons icon for selecting the view type. An additional menu appears, where type of view of the LIVE mode can be changed screenshot return to the main menu of the recorder mode MPI-540 – USER MANUAL...
Page 135: Harmonics Graph/Table
(from DC harmonic to the harmonic of 40th order) or the angles between the current and voltage harmonics. In case of harmonics, the values may be displayed in absolute units (V/A), or as percentage related to the fundamental harmonic switching to histogram view MPI-540 – USER MANUAL...
Page 136 (volts and amps) displaying values as percent in relation to the fundamental component. screenshot closing the menu return to the main menu of the recorder mode Fig. 4.18. Live mode - harmonics - tabular view MPI-540 – USER MANUAL...
Page 137: Switching The Recording On/Off
 1 second 90 days 4-wire 3-phase 1 second 144 days 4-wire  1 second 1-phase 250 days 1 second 1-phase 330 days 3-phase  1 second 125 days 3-wire 3-phase 1 second 144 days 3-wire MPI-540 – USER MANUAL...
Page 138: Recording Guidelines
The list of recording (entries on the symbol ) stored in the meter memory can be found on the Re- cording analysis – recording list screen. The list can be scrolled by moving your finger up and down within the visible summary. MPI-540 – USER MANUAL...
Page 139 The record content will appear (recording summary). The following parameters will be shown on the screen: Start – time of starting the recording process, Stop – time of stopping the recording process, Duration (of the recording process). MPI-540 – USER MANUAL...
Page 140 If a channel has not been measured in a given configuration, dashes are displayed.  Minimums and maximums of currents are determined from the average cur- rents. If a channel has not been measured in a given configuration, dashes are dis- played. MPI-540 – USER MANUAL...
Page 141: Recording Timeplot
 by manually entering boundary values of date and time and the interval for analysis. Fig. 4.21 Setting the width of the analysis Fig. 4.20 Setting the beginning of the analysis range range MPI-540 – USER MANUAL...
Page 142: Selecting Parameters For The Timeplot
Selecting data for the plot screen opens. The parameters to be analysed can be selected here. Types of readings are assigned to each of the categories, and the pa- rameters which may be selected are assigned to these. MPI-540 – USER MANUAL...
Page 143  If you have already ticked four parameters, any attempt to select another will result in displaying a message on limited number of parameters in the chart. MPI-540 – USER MANUAL...
Page 144: Creating And Managing A Timeplot
Select the data to be displayed on the plot on the Selecting data for the plot screen. For this pur- pose:  in the Category column select the required item, in the Type column select the required parameter,  and in the last column select the required variable (  select the icon. MPI-540 – USER MANUAL...
Page 145 After the selection has been made, an additional menu bar appears which enables selection of a scale description on the right side and on the left side of the graph. To do this, click on the icon with the name of the parameter. MPI-540 – USER MANUAL...
Page 146: Harmonics Waveform Graph
Fig. 4.23. Live mode - harmonics - bar graph The graph includes: graphs for the harmonics selected from the menu Graph data selection, slider - indicator of actual values. The user can slide it to any graph point. MPI-540 – USER MANUAL...
Page 147 (harmonics up to the 40th and additionally for the [%] mode – al- so THD) closing the menu returning to the previous screen performing the screenshot returning to the main menu of the recorder mode Fig. 4.24. Live mode - harmonics - tabular view MPI-540 – USER MANUAL...
Page 148: Energy Costs Calculator
If you have not used or have not changed the settings of the cost calculator, the recorder will use the default settings. The settings of the cost calculator may be modified by selecting from the menu bar the icon. Fig. 4.25. Screen with indications of the energy cost calculator MPI-540 – USER MANUAL...
Page 149: Settings Of The Energy Cost Calculator
The value may also be changed using the icons. Rate values may be entered with an accuracy of four decimal places. Fig. 4.26 Energy cost calculator – Settings MPI-540 – USER MANUAL...
Page 150 The settings are global for the entire recorder (not related to a specific recording). MPI-540 – USER MANUAL...
Page 151: Energy Loss Calculator
(the sum of the above) cost related to P losses losses which can be reduced by improv- cost related to P losses ing the quality parameters (e.g. compen- sation of harmonics, elimination of un- balance), arising from the relationship: MPI-540 – USER MANUAL...
Page 152: Configuration Of The Loss Calculator
 for neutral conductors N: number of neutral wires, cross section of cores in mm  the length of the analysed line in metres,  line material – copper or aluminium. MPI-540 – USER MANUAL...
Page 153 If the settings have been modified and saved, the results will be automatically calculated and displayed. recording calculator settings returning to the main menu of the recorder mode MPI-540 – USER MANUAL...
Page 154: Memory Of The Meter
SD card format. When this op- tion been selected, prompt will appear asking to confirm that the user wants to format the SD card. Description of function icons return to the previous screen return to the main menu MPI-540 – USER MANUAL...
Page 155: Structure Of The Memory
The memory of measurement results is of a tree structure (Fig. 5.1). The user can record an un- limited number of clients. Any number of objects with sub-objects can be created in each client. Fig. 5.1. Structure of meter memory for a single client MPI-540 – USER MANUAL...
Page 156: Fundamentals Of Navigating The Memory Menu
( ) item going to the folder tree of the active ( ) client returning to the main menu recording the active item to the SD card expanding active item management menu MPI-540 – USER MANUAL...
Page 157  select the icon. To go to a higher level of the folder tree, select the icon. To move several levels up, select the name of the re- quired folder on the top navi- gation bar. MPI-540 – USER MANUAL...
Page 158: Adding A New Measurements Tree
 contact person. Enter the name from the touch keypad (holding certain buttons for a longer time triggers Polish char- acters). Functions of icons rejecting changes and return- ing to step accepting changes and going to step MPI-540 – USER MANUAL...
Page 159 To go to the lower level of the tree:  tap the label of the required item,  activate the required item and select Creating a new client results in creating a default location for the measurements. MPI-540 – USER MANUAL...
Page 160 Select the required item and using the icons: edit the name, remove the name. Tap to assign a location from the list to a required location of the  tree ( OK – accept all changes. CANCEL – cancel changes. MPI-540 – USER MANUAL...
Page 161 The screen for locations and measuring points will appear.  Tap to activate the Location column.  Expand the edit menu using the icon and select  Proceed as in steps MPI-540 – USER MANUAL...
Page 162  serial number,  measuring cycle,  year of manufacture,  safety class,  nominal voltage,  nominal current,  nominal power. Description of function icons returning to the previous screen saving changes returning to the main menu MPI-540 – USER MANUAL...
Page 163: Entering The Measurement Result
After the measurement, se- lect the icon.  menu Entering measurement result will ap- pear (the menu and control the same as in section 5.1.1).  If necessary, create a new location in accordance with section 5.1.2b. MPI-540 – USER MANUAL...
Page 164: Viewing Saved Measurements
 Go to a location with a meas- uring point which measurement results were saved.  Activate the required measur-  ing point (  Using the icon, go to the contents of the measuring point. MPI-540 – USER MANUAL...
Page 165 (step removing the active record. returning to the main menu To go to the selected meas- urement result: tap the record label, activate record  ) and select MPI-540 – USER MANUAL...
Page 166: Searching The Meter Memory
 If necessary, select Search  all clients (  In the Name field, enter the searched phrase from the on- screen keyboard.  Select Search. MPI-540 – USER MANUAL...
Page 167: Recorder Memory
Only after formatting (which removes all files) it will be possible to reuse the card in the device. In addition, before removing the card from the meter (e.g. to read the data by Sonel Analysis) it is recommended to turn the meter off, to save all cached data.
Page 168: Compatibility With Sonel Analysis Software
The data on the memory stick are stored in the folder named " MPI-540_DATA". 5.2.3 Compatibility with Sonel Analysis software Sonel Analysis is an application used to work with MPI-540 meter and power analyzers of PQM se- ries. In combination with the above devices it enables to: ...
Page 169: Power Supply
Replacing rechargeable batteries MPI-540 meter is powered from SONEL Li-Ion rechargeable battery pack. Battery charger is installed inside the meter and cooperates only with the manufacturer’s re- chargeable battery pack. The charger is powered by external power supply adapter. It can be also powered from the car cigarette lighter socket.
Page 170: Charging The Rechargeable Batteries
– error signalled by an icon on the display Due to interferences in the network or to high ambient temperature, the charging pro- cess of rechargeable batteries may finish prematurely. When charging time is too short, turn off the meter and start charging again. MPI-540 – USER MANUAL...
Page 171: General Rules For Using Li-Ion Rechargeable Batteries
 Any misuse of the battery may cause its permanent damage. This may result in the ignition. The seller and the manufacturer shall not be liable for any damages resulting from improper handling Li-Ion battery pack. MPI-540 – USER MANUAL...
Page 172: Cleaning And Maintenance
Worn-out electronic equipment should be sent to a collection point in accordance with the law of waste electrical and electronic equipment. Before the equipment is sent to a collection point, do not dismantle any elements. Observe the local regulations concerning disposal of packages and used batteries/rechargeable bat- teries. MPI-540 – USER MANUAL...
Page 173: Technical Data
Indications of fault loop resistance R and fault loop reactance X Display range Resolution Basic uncertainty (5% + 0.05 Ω of Z  0...19.999 Ω 0.001 Ω  < 20 Ω Calculated and displayed for Z MPI-540 – USER MANUAL...
Page 174: Measurement Of Fault Loop Impedance Z
Resolution Basic uncertainty 0.055 …1.999 A 0.001 A 2.00...19.99 A 0.01 A 20.0...199.9 A 0.1 A Calculated on the basis of uncertainty for fault loop 200...1999 A 2.00...19.99 kA 0.01 kA 20.0 …40.0 kA 0.1 kA MPI-540 – USER MANUAL...
Page 175: Measurement Of Parameters Of Rcd
        1000         1000 * - does not apply to U = 110 V, 115 V and 127 V and IT network MPI-540 – USER MANUAL...
Page 176 ..1.4 x I n n 300 mA 105..420 mA 1 mA 500 mA 175..700 mA  measurement may be performed for positive or negative half-periods of forced leakage current  test current duration........ max. 8.8 s MPI-540 – USER MANUAL...
Page 177: Measurement Of Resistance-To-Earth R
±(8% m.v. + 4 digits) 100...999 Ω 1 Ω 1.00..1.99 kΩ 0.01 kΩ * – at maximum interference current of 1 A  Measurement with additional current clamps C-3,  The range of interference current is up to 9.99 A. MPI-540 – USER MANUAL...
Page 178: Low-Voltage Measurement Of Continuity Of Circuit And Resistance
(3% m.v. + 3 digits) 200...1999 Ω 1 Ω  Voltage at open terminals: 4 V…9 V  Output current < 8 mA  Audio signal for measured resistance < 30 ± 50%  Compensation of test leads resistance MPI-540 – USER MANUAL...
Page 179: Measurement Of Insulation Resistance
Test voltage: 50 V, 100 V, 250 V, 500 V i 1000 V  Accuracy of generated voltage (Robc []  1000*U [V]): -0% +10% from the set value  Detection of a dangerous voltage before commencing a measurement MPI-540 – USER MANUAL...
Page 180: Light Measurements
Probe class B Measuring ranges of LP-10A probe Range Resolution Spectral Basic [lx] [lx] uncertainty uncertainty 0...3.999 0.001 4.00...39.99 0.01 40.0...399.9 (2% m.v. + 5 digits) f1<2% 400...3999 4.00 k…39.99 k 0.01 k 40.0 k…399.9 k 0.1 k MPI-540 – USER MANUAL...
Page 181: Phase Sequence
Number of inputs 3 (L1, L2, L3) not galvanically insulated from one another Maximum peak input 5 V relative to earth voltage Nominal input voltage (hard clamps) Peak input voltage (hard 3.6 V clamps, without cutting) MPI-540 – USER MANUAL...
Page 182: Sampling And Rtc
Range and conditions Resolution uncertainty 0,5% U ≤ U ≤ 120% U (AC+DC) 20% U 0.1% U ≥ 100 V for U 5% Crest Factor 1..10 0.01 (1..2.2 for voltage 500 V) ≥ 10% U for U MPI-540 – USER MANUAL...
Page 183: Measurement Of Current (True Rms)
5% Crest Factor 1..10 (max. 3.6 for 0.01 ≥ 1% I for I 10.2.5 Frequency measurement Basic Frequency Range and conditions Resolution uncertainty 0,05 Hz 40..70 Hz 0.01 Hz ≤ U ≤ 120% U 15% U MPI-540 – USER MANUAL...
Page 184: Measuring Harmonics
Apparent power 2% I < 5% I depending ≤ I ≤ I 2.0% Apparent energy 5% I 0.03 0…1 Power factor (PF) 0.01 ≤ U 50% U < 150% U ≤ I 10% I < I MPI-540 – USER MANUAL...
Page 185: Estimated Measurement Uncertainty Values For Power And Energy
Tab. 10.1 describes error of the phase difference between the voltage and harmonics for MPI-540 recorder (without clamps and transducers). Tab. 10.1. Phase error of PQM-540 recorder, depending on the frequency.
Page 186: Other Technical Data
......................EN 61326-1 and EN 61326-2-2 EN 55022 Compliance statement MPI-540 is a class A product. In a domestic environment this product may cause ra- dio interference in which case the user may be required to take adequate measures (e.g. increasing the distance between affected products).
Page 187: Additional Data
Additional uncertainty Position Supply voltage 0% for 50 V Temperature 0 °C...35 °C ± 2 digits for 25 V ±(6.5% + 5 digits) Serial interference voltage Resistance of electrodes 2.5% Frequency 99%...101% f Mains voltage 85%...110% U MPI-540 – USER MANUAL...
Page 188: Additional Uncertainties According To Iec 61557-6 (Rcd)
[Ω] is a value of resultant resistance of multiply earthing. whereas R 10.4.5 Additional uncertainties according to IEC 61557-6 (RCD) Significant parameter Designation Additional uncertainty Position Supply voltage Temperature 0°C...35°C Resistance of electrodes Mains voltage 85%...110% U MPI-540 – USER MANUAL...
Page 189: List Of Reference Standards
EN 61326-1:2013 EN 61326-2-2:2013 11 Accessories 11.1 Standard accessories Standard set of equipment supplied by the manufacturer includes:  MPI-540 meter – WMGBMPI540  set of test leads:  WS-03 adapter with START button with UNI-SCHUKO plug – WAADAWS03 ...
Page 190: Additional Accessories
 WAADAWS04 WS-04 adapter with UNI-SHUKO angular plug (without trigger- ing)  WAADAAISO10C AutoISO-1000c adapter  5 m long 10 m long Test lead red 1 kV (banana plugs) WAPRZ005REBB WAPRZ010REBB 20 m long WAPRZ020REBB MPI-540 – USER MANUAL...
Page 191 80 cm Earth contact test probe (rod) WASONG80  5-lead version 4-lead version Three-phase socket adapter 16 A AGT-16P AGT-16C WAADAAGT16P WAADAAGT16C  5-lead version 4-lead version Three-phase socket adapter 32 A AGT-32P AGT-32C WAADAAGT32P WAADAAGT32C MPI-540 – USER MANUAL...
Page 192 WAADAAGT32T  set with WS-06 adapter only light meter probe with LP-1 light meter PS/2 plug probe with WS06 WAADALP1KPL plug, class B, resolu- WAADALP1 tion from 0,1 lx only WS-06 adapter with PS/2 socket WAADAWS06 MPI-540 – USER MANUAL...
Page 193 WAADAWS06  set with WS-06 adapter only light meter probe with LP-10A light meter PS/2 plug probe with WS06 WAADALP10AKPL plug, class B, resolu- WAADALP10A tion from 0,001 lx only WS-06 adapter with PS/2 socket WAADAWS06 MPI-540 – USER MANUAL...
Page 194 WACEGC3OKR WACEGC4AOKR C-5A (Ø 39 mm) 1000 A C-6A (Ø 20 mm) 10 A AC AC/DC for power recorder for power recorder WACEGC5AOKR WACEGC6AOKR C-7A (Ø 24 mm) 100 A AC for power recorder WACEGC7AOKR MPI-540 – USER MANUAL...
Page 195 AZ-2 power supply adapter (IEC C7 plug / banana plugs)  WAADATWR1J TWR-1J breaker testing adapter  WAPROREPORTPLUS Software Sonel Re- ports Plus. Supports creation of documen- tation after testing of electrical installation.  Calibration certificate MPI-540 – USER MANUAL...
Page 196: Clamps
Clamps C-3 are used to measure AC in electrical systems of low and medium power. As op-tional accessories for instruments produced by SONEL S.A., they are compatible with earth re-sistance me- ters of MRU series and multifunctional meters of MPI series.
Page 197: Clamps C-4A
Total Harmonic Distortion ......................<1% current constant component ....................none g) permanent magnetic field .............. <40 A/m (Earth's magnetic field) h) variable, external magnetic field ..................... none conductors in the immediate vicinity ................ no current flow MPI-540 – USER MANUAL...
Page 198: Clamps C-5A
In order to activate the clamps, slide the switch to 1 mV/A. Green LED will indicate proper operation. If after the switching operation, the LED is not lit or goes off during the measurements, replace the battery supplying the meter. MPI-540 – USER MANUAL...
Page 199 After making sure that the jaws are closed and there is no conductor between them, connect them to PQM analyzer and run "Sonel Analysis" software in the current preview mode (pay attention to cor- rectly configure the measurement point for the measurement with clamps C-5). Press the knob and turn it around until zero is reached in constant current component.
Page 200: Clamps C-6A
Clamps C-6A are designed to measure AC currents with frequencies up to 10 kHz for range 10 mA…10A. As optional accessories for instruments produced by SONEL S.A., they are compatible with power quality meters of PQM series and multifunctional meters of MPI series.
Page 201: Clamps C-7A
(sine wave) Basic Frequency Phase error uncertainty  2 45…65 Hz ±0.5% ±0.1 mV 40 Hz…1 kHz ±1.0% unspecified ±0.2 mV e) ratio: ........................5 mV AC/1 A AC output impedance ........................11  MPI-540 – USER MANUAL...
Page 202: Clamps F-1A, F-2A, F-3A
Temperature: ....................... +18…+22°C b) Conductor position..............conductor centred in the clamp loop c) Permanent magnetic field .............. <40 A/m (Earth's magnetic field) d) Variable, external magnetic field ..................... none e) External electric field ......................none MPI-540 – USER MANUAL...
Page 203 ......................... F-1: approx. 410 g ........................... F-2: approx. 310 g ........................... F-3: approx. 220 g length of clamp cables ......................2 m operating temperature ....................-20C…+80C k) electromagnetic compatibility ............EN 61000-6-3, EN 61000-6-2 MPI-540 – USER MANUAL...
Page 204: Clamps N-1
11.2.7 Clamps N-1 Clamps N-1, as optional accessories for instruments produced by SONEL S.A., are compatible with earth resistance meters of MRU series and are designed to be signal transmitting clamps in dou- ble-clamp measurements. The output signal is transmitted via two banana plugs.
Page 205: Positions Of The Meter's Cover
The manufacturer of the device and provider of guarantee and post-guarantee service: SONEL S.A. ul. 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 only by the manufacturer. MPI-540 – USER MANUAL...
Page 206: Laboratory Services
14 Laboratory services SONEL Testing and Calibration Laboratory has been accredited by the Polish Center of Accredi- tation for the calibration of measuring instruments AP 173 in the following field - electrical properties in DC and LF circuits: voltage and current (DC), voltage and current (AC), resistance (DC), electrical power.
Page 207 NOTE! The MPI-540 meter is designed for operation at rated phase voltages of 110 V, 115 V, 127 V, 220 V, 230 V and 240 V and phase-to-phase voltages of 190 V, 200 V, 220 V, 380 V, 400 V, 415 V.

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