Recommended Tools for 15 Measurements in Solar Installation and Maintenance

1. Temperature measurement

• INFRARED THERMOMETER FT3701

With a two-beam laser marker, pinpoint the spot where you want to measure the surface temperature in a non-contact way.

• *For industrial use only. Cannot measure body temperature. The laser marker beams are very dangerous if it gets into your eyes.

2. 5. 10. Voltage and current measurement

• DIGITAL MULTIMETER DT4261

  Check both AC and DC voltages, or ghost voltage. The terminal shutters on the instrument prevent errors in inserting a test lead for conducting measurements.

• AC/DC CLAMP METER CM4375-50

  Measure the AC/DC load, string current, voltage, continuity, and DC power. A uniquely designed slim jaw lets you easily get into the narrow gaps between cables in crowded electrical distribution boxes.

  Both of these products can perform a simple harmonic analysis (*1) and display the measurement waveform (*1), making them ideal for PV system installation and troubleshooting.

  • *1:With the GENNECT Cross App
• DC HIGH VOLTAGE PROBE P2000

  Combine these tools with the P2000 to measure CAT III 2000 V

Safe Measurement of 1500 V DC in Photovoltaic System
String circuit current test (short circuit or operational)

3. 11. 14. Insulation measurement

• HIGH VOLTAGE INSULATION TESTER IR5051

In addition to a normal insulation resistance measurement mode, the PV insulation resistance function lets you measure PV’s insulation during the day safely without short-circuiting. The IR5051 is compatible with 1500 V solar PV systems and is designed to accommodate systems up to 2000 V as technology advances.

3. For 600 V solar PV system insulation testing: INSULATION TESTER IR4053

Insulation Resistance Measurement for the Safety of Solar PV Systems

4. Bypass-diode inspection

• BYPASS DIODE TESTER FT4310

Inspect bypass diodes for open and short-circuit faults even in broad daylight without covering panels. Open-circuit voltage, short-circuit current, and bypass route resistance can also be measured.

6. 7. 8. Inverter efficiency, power quality and power generation measurement

• POWER QUALITY ANALYZER PQ3198

With the fourth voltage channel isolated from the first three voltage channels, the instrument can measure power and efficiency across two separate circuits.
The IEC 61000-4-30 Ed.3 Class A compliant meter lets you measure power quality and conduct power generation measurement at a high level of accuracy.

6. For precise and higher voltage of inverter efficiency tesing: POWER ANALYZER PW3390

8. Non-metallic contact power gereration measurement: CLAMP ON POWER LOGGER PW3365

9. Battery deterioration inspection

• BATTERY TESTER BT3554-50

Measure the internal resistance, voltage, and surrounding temperature simultaneously. With the audio guidance (*1) announcing the next battery number to be measured and the measurement result, you can streamline your battery measurement process.

• *1:With the GENNECT Cross App

12. Phase inspection

• DIGITAL PHASE DETECTOR PD3259-50

Detect phase sequence and measure three-phase voltage simultaneously by simply clipping the device into covered cables, ensuring that no metal components are in touch for optimal safety.

13. AC Voltage detection

• VOLTAGE DETECTOR 3481

A non-metallic contact voltage detector with a bright LED light that increases safety and productivity even in low-light situations. It beeps and the LED turns red when AC voltage is detected.

15. Earth・Ground measurement

• EARTH TESTER FT6041

This earth tester withstands temperatures ranging from -25°C to 65°C and is IP67-rated for dust- and water-proof capabilities. It features advanced three-pole and four-pole measurement methods, as well as an innovative cable winder for efficient testing.

Boost your measurement efficiency and data management.

• GENNECT series

The GENNECT service line allows you to improve your measuring instruments and digitize your measurement data.