| 摘要 |
An automatic air-in-line detector for either a transparent or an opaque fluid including first detector means for detecting air-in-line in the transparent fluid and second detector means for detecting air-in-line in the opaque fluid, and additionally including control means coupled to the first and second detector means and automatically responsive to the difference between the transparent fluid and the opaque fluid for enabling the first detector means in response to the transparent fluid and for enabling the second detector means in response to the opaque fluid and with an alarm in accordance with the detection of air-in-line in either the transparent or opaque fluid. If any of the detectors fail, the system either automatically alarms of become more sensitive. If the control means fail, the system automatically alarms. |
