Measure PV Insulation Resistance Safely, Accurately and Quickly.

The Hioki IR4053 is a digital insulation resistance tester for photovoltaic generation systems. Measure insulation resistance accurate and safely without being affected by generated solar power and identify the value in just 4 seconds.

• Built-in PV dedicated function
• 600V AC / 1000V DC meter
• 5 test voltage ranges from 50 to 1000 V

CAT III 600 V

Features:

• Safely and accurately measure PV insulation resistance even while generating solar power • Built-in PV dedicated function, display measurements in 4 seconds • Five ranges (50/125/250/500/1000V) built in for normal insulation resistance measurement • Built-in 1000 VDC voltage measurement for open voltage tests of PV systems that support 1000 V • Built-in comparator function • Drop proof design withstands drop onto concrete from a height of 1 meter

Specifications:

Basic specifications  PVΩ measurement(Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

Rated output voltage	500 V DC	1000 V DC
Effective maximum indicated value	2000 MΩ	4000 MΩ
Measuring range/ Accuracy	0.200 to 500 MΩ / ±4% rdg. 501 to 2000 MΩ / ±8% rdg.	0.200 to 1000 MΩ / ±4% rdg. 1010 to 4000 MΩ / ±8% rdg.
Other measuring range / Accuracy	0 to 0.199 MΩ / ±2% rdg. ±6 dgt.

Basic specifications Insulation resistance measurement

Rated output voltage	50 V DC	125 V DC	250 V DC	500 V DC	1000 V DC
Effective maximum indicated value	100 MΩ	250 MΩ	500 MΩ	2000 MΩ	4000 MΩ
Accuracy 1st effective measuring range MΩ	±4% rdg. 0.200 to 10.00	±4% rdg. 0.200 to 25.0	±4% rdg. 0.200 to 50.0	±4% rdg. 0.200 to 500	±4% rdg. 0.200 to 1000
Lower limit resistance	0.05 MΩ	0.125 MΩ	0.25 MΩ	0.5 MΩ	1 MΩ
Overload protection	600 V AC (10 s)	600 V AC (10 s)	600 V AC (10 s)	600 V AC (10 s)	1200 V DC (10 s)
DC voltage range	4.2 V (0.001 V resolution) to 1000 V (1 V resolution), 4 ranges, Accuracy: ±1.3% rdg. ±4 dgt., (Ranges in excess of 1000 V are not guaranteed for accuracy.)
AC voltage range	420 V (0.1 V resolution)/600 V (1 V resolution), 2 ranges, 50/60 Hz, Accuracy: ±2.3% rdg. ±8 dgt., (Ranges in excess of 600 V are not guaranteed for accuracy.)
Display	Semi-transmissive FSTN LCD with back lighting, Backlight
Response time	Insulation resistance range: 1 second, PVΩ function: 4 seconds (based on in-house tests)
Other functions	Live circuit indicator, automatic electric discharge, automatic DC/AC detection, comparator, drop proof, auto power save
Power supply	AA alkaline batteries (LR6) ×4, Continuous operating time: Approx. 20 hours (based on in-house tests)
Dimensions and mass	159 mm (6.26 in) W × 177 mm H (6.97 in) H × 53 mm (2.09 in) D, Approx. 600 g (21.2 oz) (including batteries, excluding test lead)
Accessories	TEST LEAD L9787 ×1, Neck strap ×1, Instruction manual ×1, AA alkaline batteries (LR6) ×4