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Sonel PVM-1021 User Manual

Photovoltaic meter
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Summary of Contents for Sonel PVM-1021

  • Page 3 USER MANUAL PHOTOVOLTAIC METER PVM-1021 SONEL S.A. Wokulskiego 11 58-100 Świdnica Poland Version 1.01 24.04.2025...
  • Page 4 PVM-1021 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 problems. PVM-1021 – USER MANUAL...
  • Page 5 2.1 Turning the meter on and off, display backlight ............9 2.2 Selection of general measurement parameters ............9 2.3 Remembering the last measurement result.............. 9 2.4 Connectivity between IRM-1 and PVM-1021............11 2.4.1 Pairing the meters ......................11 2.4.2 Unpairing ........................
  • Page 6 11.1.9 Converting measurement results to STC conditions ............51 11.2 Operating data ....................... 52 11.2.1 Maximum operating time on one set of batteries ............53 11.2.2 Maximum operating time on a single battery charge ............53 12 Manufacturer ....................54 PVM-1021 – USER MANUAL...
  • Page 7 CAT II – concerns measurements performed in circuits directly connected to low voltage in- stallations, • CAT III – concerns measurements performed in buildings installations, • CAT IV – concerns measurements performed at the source of low voltage installation. PVM-1021 – USER MANUAL...
  • Page 8 It may also expose the user to the risk of electric shock. • Do not carry the meter holding it by the wire of current clamps. • Repairs may be performed only by an authorised service point. PVM-1021 – USER MANUAL...
  • Page 9 This may damage the meter. General characteristics PVM-1021 is a multifunctional measuring device designed to measure the parameters of photovoltaic systems and the parameters of the inverter connection points to the power grid. It allows you to per- form the necessary measurements for a photovoltaic system according to category 1 specified in standard "EN 62446-1 - Photovoltaic systems (PV).
  • Page 10 Compliance with standards PVM-1021 meets the requirements of the following standards: • EN IEC 61557-1 – Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC – Equipment for testing, measuring or monitoring of protective measures –...
  • Page 11 When entering the start screen of a given function by pressing the ESC button (or when it is dis- played automatically 10 seconds after the measurement has been taken), the user may recall this re- sult by pressing ENTER. PVM-1021 – USER MANUAL...
  • Page 12 Sounds: on / off Pairing with IRM-1 meters Software updates: no /yes The update process is triggered by an application on the computer. You can exit it by turning off the meter. Factory reset: no / yes PVM-1021 – USER MANUAL...
  • Page 13 Connectivity between IRM-1 and PVM-1021 If the IRM-1 meters have been paired with the PVM-1021, the device searches for them when turned on. When IRM-1 is found, a connection is established and the screen shows . The PVM- 1021 remembers the last 3 paired IRM-1's.
  • Page 14 2.4.2 Unpairing In the PVM-1021 settings, enter the pairing screen with IRM-1. One paired IRM-1 Multiple paired IRM-1's within range of the meter within range of the meter .Use the serial number of IRM-1 to select the de- vice to be unpaired Use buttons to display "- - - -"...
  • Page 15 Automatic completion of results with environmental parameters af- ter regaining connection with the IRM-1 It may happen that in the course of measurements the PVM-1021 moves away from the IRM-1 so far, that communication between them is lost. If the measurements are continued, then after the connec-...
  • Page 16 ▼ ▪ 500 V general parameters setting. ▪ 1000 V Connect test leads according to the drawings. The PV system has an accessible, grounded struc- ture (including frames of the module). Then one measurement is enough. PVM-1021 – USER MANUAL...
  • Page 17 Press START. Measurement will begin. Read out the result. – test voltage - compliance of the result with the require- ments of IEC 62446 standard E - solar irradiance of the tested object – temperature of the tested object PVM-1021 – USER MANUAL...
  • Page 18 The measurement was carried out, however without the guaranteed ac- curacy, because at the time of its performance there were disturbances causing the samples to differ from each other by more than 1%. The tested object is being discharged. PVM-1021 – USER MANUAL...
  • Page 19 Connect test leads according to the drawings. Standard R measurement measurement in a PV installation equipped with optimizers The meter is ready for measurement. Voltmeter indicating voltage at the object PVM-1021 – USER MANUAL...
  • Page 20 "+" and "-" terminals with resistance of 140 kΩ. • The result can be stored in the memory (see sec. 4.1). The last measurement result is stored until START button is pressed again or the position of rotary switch is changed. PVM-1021 – USER MANUAL...
  • Page 21 (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. PVM-1021 – USER MANUAL...
  • Page 22 Turn on the meter. • Set the rotary switch of function selection at U • β If the PVM-1021 is communicating with the IRM-1, press and hold SET/SEL. • ▲ -0.40 %/ºC Set the temperature coefficient β for the tested …...
  • Page 23 PV system according to the algorithm and rules ▼ 0.089 %/ºC described in setting general parameters. If PVM-1021 is used for a measurement in a sys- ► DC/DC tem with an optimizer, press briefly SET/SEL but- ton. The DC/DC label will appear on the screen.
  • Page 24 The measurement result may be affected by a large, unspecified error (usually positive). • No data from IRM-1 before and after short-circuit current measure- ment. Test leads reversed or reverse polarity. The measurement is blocked. PVM-1021 – USER MANUAL...
  • Page 25 AUTO. Press and hold SET/SEL. Enter settings according to the following algorithm, and according to the rules described in general parameters setting. The α and β coefficients are available if the PVM-1021 is communicating with the IRM-1. α β ▲...
  • Page 26 During the measurement, the photovoltaic system is short-circuited for a short time. The test leads must not be disconnected during the measurement - there is a risk of electric arc ignition and damage to the meter. PVM-1021 – USER MANUAL...
  • Page 27 Read out the results. The transition between screens is carried out using the ◄ ► buttons. If the PVM-1021 communicates with the IRM-1, there is an additional screen with the U values converted to STC conditions. U – voltmeter indicating voltage at the object –...
  • Page 28 (usually positive). • No data from IRM-1 before and after short-circuit current measure- ment. The tested object is being discharged. Test leads reversed or reverse polarity. The measurement is blocked. PVM-1021 – USER MANUAL...
  • Page 29 Enter the measurement range of C-PV clamps ▼ ▪ 400 A according to the algorithm and according to the rules described in general parameters setting. • Reset the clamps (sec. 3.6). Connect the meter. DC side measurement, AC side measurement, PVM-1021 – USER MANUAL...
  • Page 30 If a voltage and current clamp connection error is detected, i.e. if the measured voltage is DC and the current is AC (or vice versa), the power P will be displayed with a ques- tion mark indicating this error. That kind of result cannot be saved to the memory. PVM-1021 – USER MANUAL...
  • Page 31 Alternatively, set the DC ZERO knob on the housing of the clamps to make the current readings as close to zero as possible. However, it is recommended to zero the clamps in the meter according to the procedure described above. PVM-1021 – USER MANUAL...
  • Page 32 R CONT button to enter the auto-zeroing mode. Short the test leads. Activate the autozeroing by pressing the START button. After completion of autozeroing, the meter auto- matically switches to the "ready form measure- ment" mode. PVM-1021 – USER MANUAL...
  • Page 33 Immediately disconnect the meter from the tested ob- ject (both leads)! 3.7.2 Low-current measurement of resistance • Turn on the meter. • Set the rotary switch of function selection at R The meter is ready for measurement. PVM-1021 – USER MANUAL...
  • Page 34 The tested object is live. The measurement is blocked. Immediately disconnect the meter from the tested ob- ject (both leads)! The test leads compensation is activated for low-voltage resistance measurements. Automatic measurement activation. >1999 Ω Measuring range is exceeded. PVM-1021 – USER MANUAL...
  • Page 35 21 Ω. The measurement may be also triggered with START button. Read the measurement result. The result is the arithmetic mean of the values of two measurements at a current of 200 mA with opposite polarities R and R PVM-1021 – USER MANUAL...
  • Page 36 Possible causes: • interferences on the measured object too large, • instability of the object or connections of the meter with this object (insecure galvanic connections). >1999 Ω Measuring range is exceeded. PVM-1021 – USER MANUAL...
  • Page 37 (in the forward di- rection) is shown. Connect test leads according to the drawing. The polarity when connecting the diode does not matter - the meter will automatically set it before taking the measurement. Press START. PVM-1021 – USER MANUAL...
  • Page 38  perform a blocking diode test with 1000 V and save it to the same cell. If parameters are saved in the cell for the first time, no warning about data overwriting is be dis- played. PVM-1021 – USER MANUAL...
  • Page 39 The polarity when connecting the diode does not matter - the meter will automatically set it before taking the measurement. Press START. WARNING During the measurement of the U parameters, the meter generates dangerous measuring voltage of 1000 V. PVM-1021 – USER MANUAL...
  • Page 40  perform a blocking diode test with 1000 V and save it to the same cell. If parameters are saved in the cell for the first time, no warning about data overwriting is be dis- played. PVM-1021 – USER MANUAL...
  • Page 41 The meter is in the memory storing mode. Select an object and a cell according to sec 4.2 or leave the current one. The cell is empty. The cell contains the result of the same type which is to be entered. PVM-1021 – USER MANUAL...
  • Page 42 Complete set of results (main result and supplementary results) for a given measuring function, preset measurement settings, date and time of the measurement are stored in the memory. Additional data from the IRM-1 Irradiance Meter can also be saved. PVM-1021 – USER MANUAL...
  • Page 43 The cell number is flashing. To change the number of the bank/cell which con- tent you want to see press SET/SEL and then ▲▼ . If the bank or cell number is flashing - it may be changed. PVM-1021 – USER MANUAL...
  • Page 44 SC STC E, T +, R +, I ISO~ CONT CONT or P , U, I or P , U, I , P , E E, T or P~, U, I or P~, U, I E, T PVM-1021 – USER MANUAL...
  • Page 45 Press ENTER. A prompt for con- firming deletion is shown. Press ENTER to start deleting or ESC to abort. When deletion is complete, the meter generates three short beeps and sets the cell number to "1". PVM-1021 – USER MANUAL...
  • Page 46 Press ENTER. A prompt for confirming deletion is shown. ▼ Press ENTER to start deleting or ESC to abort. When deletion is complete, the meter generates three short beeps and sets the cell number to "1". PVM-1021 – USER MANUAL...
  • Page 47 In order to ensure the communication of the meter with a computer, Bluetooth module is required with an additional software. A program that may be used for this purpose is Sonel Reader. It allows users to read and display the measurement data stored in the meter memory. Software may be down- loaded free from the manufacturer's website.
  • Page 48 Batteries / rechargeable batteries discharged. Replace batteries or recharge rechargeable batteries. The meter switches off automatically. Measurements performed with an insufficient supply voltage will be at risk of additional er- rors which the user is unable to evaluate. PVM-1021 – USER MANUAL...
  • Page 49 Remember that with fast charging, the batteries are charged to about 80% of their capacity; better results can be achieved by continuing the charging process: the charger then goes into the small current charging mode and after a few hours the batteries are fully charged. PVM-1021 – USER MANUAL...
  • Page 50 Worn-out electronic equipment should be sent to a collection point in accordance with the regula- tions valid in a given region. 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. PVM-1021 – USER MANUAL...
  • Page 51 Detection of a dangerous voltage before commencing a measurement • Discharging the object tested • Measurement of voltage on terminals "+", "–" within the range of: 0…600 V AC, 0…1000 V DC • Test current: 2.4…2.8 mA PVM-1021 – USER MANUAL...
  • Page 52 Accuracy Calculated on the basis of 0…I mA, μA, nA Lmax resistance readings • – maximum current at short circuit of leads Lmax • resolution and units result from the measurement range of individual insulation resistance PVM-1021 – USER MANUAL...
  • Page 53 11.1.9 Converting measurement results to STC conditions The conversion of the measurement result to STC conditions takes place only when the irradiance measured by the IRM-1 meter is within its measuring range and exceeds 100 W/m PVM-1021 – USER MANUAL...
  • Page 54 (e.g. domestic). SONEL S.A. hereby declares that the radio device type PVM-1021 complies with Di- rective 2014/53/EU. The full text of the EU Declaration of Conformity is available at the following website address: https://sonel.pl/en/download/declaration-of-conformity/...
  • Page 55 6 h 30 min Conditions • Ni-MH 1900 mAh rechargeable batteries • >60 MΩ on lines +POS, -NEG of PV module ISO(PV) • >30 MΩ ISO(AC) • <10 Ω • <10 Ω CONT • Temperature 23C ± 2C PVM-1021 – USER MANUAL...
  • Page 56 The manufacturer of the equipment and provider of service during and past the warranty period: SONEL S.A. Wokulskiego 11 58-100 Świdnica Poland tel. +48 74 884 10 53 (Customer Service) e-mail: customerservice@sonel.com web page: www.sonel.com NOTE! Service repairs must be performed solely by the manufacturer. PVM-1021 – USER MANUAL...
  • Page 57 NOTES PVM-1021 – USER MANUAL...
  • Page 58 NOTES PVM-1021 – USER MANUAL...
  • Page 59 MEASUREMENT MESSAGES Measurements The tested object is live. The measurement is blocked. Immediately disconnect the meter from the tested object (both leads). Damage to the IGBT transistor and the main relay. Disconnect the meter from the tested object in a quick and decisive way to minimize the ignition of the electric arc between the disconnected el- ements.