What does the SIMCO ST-4 test?
The SIMCO ST-4 (usually referring to the SIMCO-Ion ST-4) surface resistivity tester is primarily used to measure the surface resistance and grounding leakage resistance of objects. It is a commonly used handheld portable measuring tool in the field of electrostatic discharge (ESD) protection to ensure the effectiveness of ESD protection materials.
Chemical Instruments Network
The following are the main testing functions and features of the ST-4:
Measuring Surface Resistivity: Evaluating the conductivity of various ESD protection materials, such as table mats, floor mats, hard laminates, conductive flooring, etc.
Measuring Grounding Leakage Resistance: Detecting whether anti-static facilities are properly grounded to safely release static electricity.
Working Principle: This instrument uses the voltmeter-ammeter method. A voltage is applied to the object through built-in measuring electrodes, and the resistance value is calculated based on the flowing current and directly displayed on the LCD screen.
Standards Compliance: Supports relevant ESD testing standards of the IEC International Electrotechnical Commission.
Portability and Ease of Use: Simply place the instrument on the object being measured to directly read the value. Suitable for rapid testing of anti-static performance in various environments such as factories and laboratories. Chemical Instruments Network