A surface resistance meter is a specialized instrument used primarily in electronics manufacturing and industrial safety to measure the electrical resistance of various surfaces. These devices are essential for auditing ESD (Electrostatic Discharge) control programs by classifying materials as conductive, dissipative, or insulative. Features and Types Measurement Modes: Most meters measure surface resistivity (ohms per square) using built-in parallel electrodes or surface-to-ground resistance (ohms) using external leads.
Classification Ranges:
Conductive: Generally <106is less than 10 to the sixth power<106 Ωcap omegaΩ.
Dissipative: Typically 10610 to the sixth power106 to 101110 to the 11th power1011 Ωcap omegaΩ.
Insulative: Generally ≥1012is greater than or equal to 10 to the 12th power≥1012 Ωcap omegaΩ.
Display Types:
LED Indicators: Use color-coded lights (e.g., Green for dissipative, Red for insulative) for quick visual checks.
Digital Displays: Provide precise numeric values, often including ambient temperature and humidity, which can affect resistance readings.
