S100 switch proves airflow & air velocity trip point is user-adjustable! The S100 air velocity switch is a reliable, cost-effective way to monitor airflow. It signals for low flow with choice of NO or NC relay output whenever air velocity falls below the user defined trip point. The S100 trip point is easily set via […]
Demands for increased comfort, concerns about interior air quality, and initiatives to reduce environmental impacts are affecting automotive HVAC system developments. New air modes, air purification, and eco-friendly automotive refrigerants are just some of the items under discussion. To quantify the performance of airflow systems in vehicles, from both the perspective of personal comfort and […]
We know that all respiratory infections, starting with influenza and including the four endemic human coronaviruses, spread more virulently during winter months when people are indoors and closer together. In keeping with this understanding, SARS-CoV-2 has been transmitted more frequently in the Northern Hemisphere because colder weather forces the masses indoors more often and for […]
Rooster™ Ensures Good Ventilation for Chemical Storage Pool venues and chemical storage areas should be well ventilated to minimize hazards and remove airborne corrosives. The CDC publishes the Model Aquatic Health Code (MAHC) to help state and local government agencies improve health and safety in pools. Section 4.9.2 of the MAHC annex covers chemical storage […]
Multipoint Sensing Saves Time & Avoids Measurement Inaccuracies Using the single point measurement approach to measure airflow at multiple points is loads of work and may result in measurement inaccuracies. R&D groups turn to Degree Controls for multipoint sensing and data acquisition solutions when testing conditions require numerous, simultaneous, measurement locations. °C SPARs and °C […]
FH-Series Airflow Sensors Help Assure CGMP Compliance 21 CFR 113 of the Electronic Code of Federal Regulations (eCFR) defines aseptic processing and packaging as “the filling of a commercially sterilized cooled product into pre-sterilized containers, followed by aseptic hermetical sealing, with a pre-sterilized closure, in an atmosphere free of microorganisms.” Environmental monitoring and control is essential […]
HEPA (high efficiency particulate air filters) filters and HEPA filter integrity are critical to air filtration systems in industries including pharmaceutical, semiconductor, food, and nuclear. HEPA filters are most effective when used at their rated airflow resistance and face velocity, and various standards have been implemented for certification and in-situ qualification testing of HEPA filters.
The covid-19 pandemic has generated an increased interest in airflow and cleaning the air. Air cleaners, also referred to as air purifiers or sanitizers, use differing technologies including HEPA filtration, activated carbon filtration, ultraviolet (UV) germicidal irradiation, or multiple technologies such as filtration with UV disinfection. The ASHRAE Position Document on Filtration and Air Cleaning provides information on these […]
Airflow is Essential for Critical Containment Engineering controls are used to protect laboratory workers. Examples include exposure control devices (ECDs) such as chemical fume hoods and biosafety cabinets (BSCs), which are ventilated to contain harmful toxins and odors, and safeguard against fume releases into the room. These critical containment cabinets differ in design, and airflow […]
Performance & Reliability with Sidewall Air Velocity Sensing Lab managers often choose to use sidewall sensors to maintain the face velocity of fume hoods and biosafety cabinets, instead of duct-mounted probe-style sensors, in applications where the exhaust flow is dirty or extremely hot. The long term exposure of probe-style sensors to depositing particulates or corrosive chemicals may compromise […]