A comprehensive professional measurement kit designed for testing, commissioning, troubleshooting, and evaluating photovoltaic (PV) installations up to 1500 V.

The kit combines advanced electrical measurements with solar irradiance and temperature monitoring, providing all the essential tools required to assess the safety, performance, and efficiency of PV systems.

The set includes:

• Sonel PVM-1530 Photovoltaic Installation Tester

• Sonel IRM-1 Solar Irradiance and Temperature Meter – 2 units

• Sonel CMP-1015-PV Digital Clamp Meter for Photovoltaic Installations

1. Sonel PVM-1530 Photovoltaic Installation Tester

The Sonel PVM-1530 is an advanced multifunction tester designed for photovoltaic installations operating at voltages up to 1500 V DC.

It supports Category 1 measurements in accordance with EN 62446-1 and enables I-U curve measurements for Category 2 testing in accordance with EN 62446-1 and EN 61829.

In combination with the IRM-1 solar irradiance and temperature meter, measured parameters can be automatically converted to Standard Test Conditions (STC) in accordance with EN IEC 60891.

Combining extensive measurement capabilities with intuitive operation, the PVM-1530 provides professionals with a powerful solution for verifying the electrical safety, performance, and efficiency of photovoltaic installations.

2. Sonel IRM-1 Solar Irradiance and Temperature Meter – 2 Units

Compact yet essential for professional PV testing, the IRM-1 measures solar irradiance, PV module temperature, and ambient temperature.

These environmental measurements provide the data required to accurately convert PV test results to STC conditions.

The built-in data logger can store up to 5,000 records, making the IRM-1 suitable not only for commissioning and maintenance but also for PV system design and the diagnosis of module shading and environmental performance issues.

3. Sonel CMP-1015-PV Digital Clamp Meter

The CMP-1015-PV is a professional digital clamp meter designed specifically for electrical measurements in photovoltaic installations up to 1500 V DC.

Its extensive measurement capabilities make it an ideal companion to the PVM-1530. In addition to standard electrical measurements, the meter features a built-in data recorder with graphical presentation of results.

A high-brightness display ensures excellent readability even when working outdoors in direct sunlight.

PVM-1530 | Key Features

• Suitable for Category 1 measurements according to EN 62446-1

• I-U curve measurement for Category 2 testing according to EN 62446-1 and EN 61829

• Suitable for testing conventional, bifacial, and high-efficiency PV modules

• User-defined measurement procedures

• Conversion of measured parameters to STC conditions according to EN IEC 60891 when used with the IRM-1

• reSYNC function automatically supplements measurement results with environmental parameters and converts them to STC conditions after communication with the IRM-1 is restored

• Long-range radio communication with the IRM-1

• Built-in Bluetooth and Wi-Fi for communication with external devices

• Large, structured measurement memory

• Large touchscreen designed for excellent visibility even in bright sunlight

PVM-1530 | Measurement Capabilities

• Measurement of I-U and P-U characteristics, including conversion to STC conditions

• Open-circuit voltage measurement of PV modules and strings up to 1500 V DC

• AC network RMS voltage measurement up to 1000 V, including frequency measurement

• Short-circuit current measurement of PV modules and strings up to 40 A DC

• PV insulation resistance testing at 250 V, 500 V, 1000 V, and 1500 V DC, with simultaneous measurement of RISO+ and RISO-

• AC circuit insulation resistance testing at 250 V, 500 V, and 1000 V DC

• Protective conductor and equipotential bonding resistance measurement using ±200 mA test current

• Measurement of PV operating current and AC current using the CMP-1015-PV

• AC/DC power measurement

• Bypass diode testing with automatic polarity detection

• Blocking diode testing at 1000 V and 1500 V DC

PVM-1530 | Category 1 Testing and I-U Curve Analysis

The PVM-1530 combines a wide range of PV testing functions in a single instrument designed for systems operating up to 1500 V.

Measurements are selected and controlled through a large, full-color touchscreen with powerful backlighting, ensuring comfortable operation and excellent readability even in direct sunlight.

Its extensive structured memory simplifies data management and significantly reduces the time required to prepare documentation and reports after testing.

PVM-1530 | Designed for Field Use

The PVM-1530 is built for professional use in demanding outdoor environments.

Its rugged, durable enclosure protects the instrument during transportation and field operation, making it well suited for commissioning, maintenance, and troubleshooting of photovoltaic installations.

PVM-1530 | Communication and Software

Measurement data can be transferred from the PVM-1530 to a computer using either wired or wireless communication.

Sonel Reader software enables users to download measurement results, save data in commonly used formats, and print measurement documentation.

For professional electrical safety and electric shock protection reports, the optional Sonel Reports Plus software can be used.

PVM-1530 | reSYNC – Never Lose Environmental Data

During measurements, the distance between the PVM-1530 and IRM-1 may occasionally become too great to maintain communication.

Testing can continue without interruption.

Once communication is restored, the reSYNC function automatically supplements the measurement results with the environmental parameters recorded in the IRM-1's temporary memory and converts the relevant results to STC conditions.

This helps maintain complete and accurate measurement records even when temporary communication interruptions occur.

IRM-1 | Key Features

• Measurement of solar irradiance and temperature

• LoRa communication interface for long-range communication with the main measuring instrument

• Automatic data synchronization using the reSYNC function

• Built-in compass and inclination sensor

• Integrated data logger for recording solar irradiance during PV system planning and for evaluating shading in existing installations

• Large measurement memory with 999 cache memory locations and up to 5,000 data logger records

• Continuous recording mode with data overwriting capability

IRM-1 | Measurement Capabilities

• Solar irradiance measurement in W/m² or BTU/ft²h

• PV module temperature in °C or °F

• Ambient temperature in °C or °F

• PV module inclination angle

• PV module orientation using the built-in compass

IRM-1 | Rugged and Weather-Resistant

Designed specifically for outdoor PV applications, the IRM-1 performs reliably under demanding environmental conditions.

Its IP65-rated enclosure provides protection against dust and water ingress, making it particularly suitable for field measurements on photovoltaic installations.

IRM-1 | Communication and Data Transfer

Measurement data can be transferred from the IRM-1 to a computer via USB.

The instrument also features a built-in LoRa (Long Range) wireless interface, enabling automatic data exchange with the main measuring instrument over extended distances.

CMP-1015-PV | Professional Measurements for Photovoltaic Systems

The CMP-1015-PV is specifically designed for measuring DC current and DC voltage in photovoltaic installations up to 1500 V.

Its wide range of measurement functions makes it a versatile instrument for installation, commissioning, maintenance, and troubleshooting.

The built-in VFD function also enables accurate measurements downstream of variable frequency drives, further extending the meter's range of professional applications.