Latest Test and Measurement News

High-voltage Insulation Resistance Testers

14 March 2024 - Fluke announced two portable and lightweight (1.3 kg) Insulation Resistance Testers for fast, accurate and reliable testing up to 2500 V (DC). The high-voltage 1535 and 1537 Insulation Resistance Testers are ideal for industrial electricians, maintenance technicians, electrical engineers and field service engineers looking to simplify frontline troubleshooting and improve productivity. Whether used on the factory floor or in the field at a solar PV installation, for maintenance work on such equipment as motors, transformers or power cabinets, the insulation testers deliver equally rapid and stable resistance measurements and enable users to cover greater workloads with a single tool.

Completing the tester range from Fluke in this sector, the 1535 and 1537 Insulation Resistance Testers are capable of taking up to 6500 measurements at 250 V or 1300 measurements at 2500 V with one set of batteries, giving the user complete control. For greater flexibility, test voltages are user selectable and adjustable, and a ramp function is available, which is ideal for industrial or solar PV applications. Resistance measurements can also be taken up to 500 GΩ, whether working on small circuits or high-voltage systems, while the 1537 Insulation Resistance Tester enables measurements to be stored for later review or PC transfer using the Fluke software provided.

Both testers are user-friendly with intuitive user interfaces. The Fluke 1537 has a high short circuit current of up to 5 mA and both testers have enhanced safety rating through CAT IV 600 V and built-in voltage alarm function. At the same time, both units comply with the standard series IEC 61557 and IEC 61010 for safety and IEC 61326-1 for electromagnetic compatibility. Furthermore, Automatic Polarization Index (PI) and Dielectric Absorption Ratio (DAR) calculation means influence of environmental factors on insulation performance can be minimised without the need for additional set-up.

www.fluke.com/