INSTALLATION, OPERATION AND MAINTENANCE MANUAL – COSA
9610™
22 | Page
tube type, variable area meter used to measure and visually indicate the flow rate of liquid or gas. A
metallic ball is used in this alarm flowmeter.
The PurgemasterTM meter used in The COSA 9610™ Calorimeter is equipped with a min alarm
contact. The alarm sensor is suitable for hazardous location because the sensors are intrinsically safe
when used with the switching amplifier.
The COSA 9610™ Calorimeter alarm flowrate is set at 10Nl/min.
The alarm consists of a Pepperl and Fuchs ring sensor (that encircles the meter tube) and a remote
mounted Pepperl and Fuchs switching amplifier with the response time of approx. 20 milliseconds.
The sensor with bistable switching action uses the position of the ball float as the input signal for
actuation. It is adjustable over the metering range of the tube. The sensor can be adjusted using a
1.5 mm hex socket wrench to loosen the locking screws and sliding the sensor up or down on the
meter tube. Re-tighten the locking screws.
Maintenance
The maintenance required are the cleaning the tube, float, and operator protection shield. The meter
should be cleaned frequently enough to assure accuracy and float visibility.
Follow the PurgeMater
TM
instruction manual to maintenance the alarm flowmeter.
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