Understanding Arc Flash Hazards and Safer Infrared Inspections The role of an electrical thermographer is critical in modern industry. These professionals perform infrared inspections to detect hidden problems in electrical distribution systems before they result in failures or unplanned shutdowns. The challenge? Thermographers must work with energized equipment under load, and infrared cameras cannot “see” through closed metal panel covers. Traditionally, this meant removing covers to scan energized equipment,…
Is My AC Rotor Bad?
Can I Rule it In or Out as the Cause of Failure? Rotor bar problems are infrequent, in most applications. But, when they occur, they are easy to overlook. A lot of time is wasted on diagnosis when a rotor bar issue is not obvious. The guesswork about rotor bars being good or bad can easily and quickly be eliminated for a motor that can run. There are about 15 different ways to check for fractured…
Why use a Laser Distance Meter?
Understanding Laser Distance Measurement Technology A Laser Distance Meter (LDM) is a precision instrument that measures the distance between two points using a focused beam of laser light. It works by emitting a laser pulse toward a target and calculating the time it takes for the reflection to return. Using advanced onboard processing, the device instantly converts this data into an accurate distance reading-typically within ±3 mm up to 30 meters. Modern laser meters do…
Understanding Cable & Antenna Analysis Part 2
Cable Loss Effect on System Return Loss The insertion loss of the cable needs to be taken into consideration when making system return loss measurements using portable cable and antenna analyzers. The picture below(picture 4) illustrates how the cable loss changes the perceived antenna performance. The antenna itself has a return loss of 15 dB but the 5 dB insertion loss improves the perceived system return loss by 10 dB (5 dB *2). Even…
CALIBRATION TECH BRIEF: BK Precision 4010A – VCG Out of Tolerance
The Out of Tolerance Solution We had two BK4010A generators in for calibration in the JM Test Alexandria Lab recently, and all parameters except one were well in tolerance. The out of tolerance condition was the Voltage Controlled Generator(VCG) frequency section of the verification. Briefly, the verification consists of the following: Set the Frequency Range to 200 kHz, and the dial to 2 (setting the frequency to 200 kHz). Apply…
What Are MultiRae Gas Monitors? Applications, Benefits & More
Introduction: Multi-Threat Monitoring Made Simple In high-risk environments, protecting workers from unseen hazards is critical. MultiRAE portable gas monitors are designed to deliver multi-threat detection, combining advanced gas, volatile organic compound (VOC), and even gamma radiation monitoring into a single rugged instrument. With features like wireless connectivity, man-down alarm, and extensive field-interchangeable sensor options, MultiRAE monitors provide first responders, industrial workers, and safety managers with reliable, real-time data to make faster, safer decisions-while reducing…
