HVAC air filter monitor with sensor compensation
US8623117B2 · kind B2 · utility
36Cited by
31References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2011 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Jul 5, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F11/39
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Sensor offsets for an air filter monitor installed in an HVAC system may be determined by measuring a sensor offset differential pressure value across an air filter when substantially no air flow exists through the air filter. The sensor offset differential pressure value obtained at or near zero flow may represent the sensor offset for the air filter monitor. The sensor offset differential pressure value may be used to compensate an un-compensated differential pressure value obtained during flow conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.