A pressure safety valve (PSV) protects pressure vessels and piping systems from excessive internal pressure. When a system reaches a predetermined pressure the PSV opens, a portion of the media discharges, and the pressure inside drops to a safe limit. Once the pressure reaches the valve’s reseating set point, the valve closes. …
Grounding System Design in 6 Simple Steps
Why Soil Resistivity Matters Before designing or installing a grounding system, the first step is to measure the soil resistivity. Soil resistivity directly affects how electricity flows into the ground, which is critical for safety, reliability, and performance in electrical systems. This critical value determines how effectively a grounding electrode can dissipate fault current into the earth. Low soil resistivity means current can dissipate easily, creating an effective…
Why Digital Manometer Accuracy Matters
In industries where precise pressure measurement is critical, digital manometers have become a standard tool. As demand for tighter tolerances grows, understanding the accuracy, resolution, and calibration requirements of these instruments ensures reliable performance in the field. Digital manometer accuracy matters because small measurement errors can lead to big problems – from inefficiency and poor performance to regulatory violations and safety hazards. At JM Test Systems,…
Workplace Gas Leak Detection – Are Your Employees Safe from Explosions & Leaks?
Gas Detection A gas detector is a device which detects the presence of various gases within an area, usually as part of a safety system. This type of equipment is used to detect a gas leak and interface with a control system so a process can be automatically shut down. A gas detector can also sound an alarm to operators in the area…
Tan Delta Cable Testing – High Voltage Insulation Monitoring
TAN δ (Delta) Cable Testing for Transformers, Switchgear & Bushings Tan Delta testing, also known as Loss Angle or Dissipation Factor testing, is a proven diagnostic method for assessing the quality and condition of high-voltage cable insulation. The test primarily focuses on measuring the tan delta, which is the tangent of the loss angle of…
What is Traceability?
Traceability plays a critical role in modern supply chains, regulatory compliance, and quality assurance. At its core, traceability refers to the ability to track and verify the history, location, and application of an item through recorded identification. Organizations use traceability to enhance transparency, improve efficiency, and ensure accountability across various sectors, including manufacturing, food production, healthcare, and information technology. The Purpose of Traceability Traceability enables companies to monitor the flow of products and components from origin…
