Insulation Testing: Megohmmeter or Hipot Tester

Insulation Testing: Megohmmeter or Hipot Tester

Use a megohmmeter to measure insulation resistance in the field (non-destructive, trend monitoring). Use a hipot (dielectric withstand) tester to verify insulation breakdown thresholds in manufacturing or safety tests. Choose based on your use case, voltage needs, and test objectives. (more...)

DMM

Common Mistakes When Using a DMM

The digital multimeter is one of the most widely used test instruments. A handheld DMM typically has 3½ or 4½ digit resolution and at least 3, but sometimes more than 10 functions (DCV, ACV, Ω, DCA, ACA, Hz, duty cycle, capacitance, continuity, diode test, etc). Newer meters include many features to increase safety, (more...)

Clean Currents 2025

Navigate to Weschler Instruments at Clean Currents 2025

October 14-17, Pittsburgh, Pennsylvania

Full Program available at: https://cleancurrents.org
Join Us National Hydropower Association’s Clean Currents 2025!
With three rivers merging at The Point, Pittsburgh’s foundation and future is rooted in effective stewardship of critical water resources. What a perfect setting for your visit to NHA’s Clean Currents 2025. (more...)

High Voltage Symbol

Detecting and Measuring High Voltages

Panel meters, digital multimeters (DMMs), power monitors and other general-purpose instruments are typically limited to detecting and measuring voltages less than 1000V. Specialized instrumentation is required for AC or DC voltages above this level. (more...)

Flow Rate

Ratemeters Explained

A ratemeter is a measuring instrument that accepts input pulses and displays a value that is proportional to the rate at which the pulses occur, averaged over a time selected by the user. (more...)