FCI's AS-FS Series flow switches utilize no moving parts, ultra-reliable thermal dispersion flow measurement technology to detect a flow rate above or below a predetermined set point at the sensing location. They are applied to signal low flow or high flow alarm conditions in air or liquid fluid flows throughout the aircraft. FCI offers two versions, one for air flow and one for liquid flow applications.. They are rugged, all-welded, 316 stainless steel but are compact and lightweight. AS-FS flow switches are directly installed into piping or ducting on commercial and military aircraft, as well as spacecraft, vehicles and marine applications.
FCI’s AS-FS Dual Output flow sensor provides fully redundant and separate outputs in the same outline dimension envelope of single sensor output designs. This is achieved by employing two electrically independent sensor heads and circuit boards; the second output assures continued operation in spite of a failure of one of the two redundant channels, thereby reducing the probability of an erroneous low flow or dry signal caused by a single sensor failure.
| Fluid Components Intl. (FCI) | Fluid Components Intl. (FCI) | |
|---|---|---|
| Product Category | Velocity Flow Switches | Velocity Flow Switches |
| Product Number | AS-FS | AS-FS |
| Product Name | Thermowell Sensing Flow Switch For Air Or Liquids | Thermowell Sensing Flow Sensor Dual Output |
| Meter Technology | Thermal | Thermal |
| Approvals | ISO9001, AS9100 | ISO9001, AS9100 |
| Operating Temperature | -40 to 257 F (-40 to 125 C) | -40 to 257 F (-40 to 125 C) |
| Mounting | Insertion | Insertion |
| End Fittings | In-line Flanged | In-line Flanged |
