Liquid and Gas Controllers provide accuracy to ±3% FS.

Key Instruments    Trevose, PA 19053-3428
Dec 20, 2002 Series 8500 Optaflow® Controller combines noncontact optical sensors and electromechanical features to set and monitor flow control functions. Tracking mode adjusts unit's control valve to maintain preset flow parameters and integrated alarm provides audible and visual signal. Units include remote PC interface via RS 232/485. Liquid models are calibrated for water and contain 1 manual bleed valve. Gas models offers selectable calibration of 6 gases.

Flowmeter Alarm detects flow rates outside user settings.

Key Instruments    Trevose, PA 19053-3428
Dec 04, 2002 Eagle-Eye(TM) Alarm, for FR Series Acrylic Flowmeters, provides non-contact optical sensing that is unaffected by contaminants in flow stream. Housed in splash-resistant enclosure, unit offers standard- and automatic-reset operating modes and requires no calibration. Red and green LEDs provide visual status and buzzer provides audible indication of flow rate status. Multiple units may be installed on single flowmeter for multiple thresholds.