HVAC Flow Hood Measurements: Setup, Errors and Best Practices : Check the hood seal before trusting
Use a flow hood to measure volumetric airflow at a supply or return outlet, then compare the reading with the system’s design and balancing data. A.
How to Measure pH in Canned Food Safely: Sampling, Calibration, and the 4.6 Limit
A pH reading can help evaluate a food sample, but it cannot by itself establish that a home-canning recipe or commercial sterilization process is safe..
Why Do Two Hygrometers Show Different Readings? Causes and Checks
Two hygrometers can show different relative-humidity values because of sensor tolerance, temperature, placement, stabilization time or drift. Place.
Why Does Compressed Air Consumption Stay High During Production Stops? Causes and Checks
High compressed-air use during downtime generally means air is still flowing somewhere: leakage, purge cycles, drains, blow-off nozzles or standby.
How to Use a Carbon Monoxide Tester for Ambient Air Checks: Safe Steps and Reading Tips
Use a suitable ambient CO meter to measure carbon monoxide in room air, not the concentration inside a flue. Record instrument status and the.
Infrared Pyrometer Guide: Improve Accuracy with Emissivity and Distance
An infrared pyrometer estimates the apparent surface temperature of the area it sees. Incorrect emissivity, reflected radiation, excessive measurement.