Post Tagged with: "level"

Filling material level measurement.

Filling material level measurement.

Basic, Instrumentations 23 Tháng Sáu, 2014 at 5:57 chiều

The “classical approach” to measuring the filling level With ball mills this working point is linked directly to the level of the material being ground in the mill. A mill that is too empty, i.e. one that has been underfed, operates extremely uneconomically from the energy point of view while a mill that is too full, i.e. has been overfed,Read More

Ultrasonic Level Measurement

Ultrasonic Level Measurement

Basic, Instrumentations 23 Tháng Sáu, 2014 at 5:53 chiều

Ultrasonic level instruments operate on the basic principle of using sound waves to determine liquid/ solid/slurries level. In addition to standard level or volume measurement, they can monitor open channel flow, determine the actual volumetric throughput in lift stations, measure differential level and control the pumps. Ultrasonic Level Transmitters consist of two elements; 1) a high efficiency transducer and, 2)Read More

Differential Pressure Level Detectors

Differential Pressure Level Detectors

Basic, Instrumentations 23 Tháng Sáu, 2014 at 5:13 chiều

The differential pressure (ΔP) detector method of liquid level measurement uses a ΔP detector connected to the bottom of the tank being monitored. The higher pressure, caused by the fluid in the tank, is compared to a lower reference pressure (usually atmospheric). This comparison takes place in the ΔP detector. Figure 9 illustrates a typical differential pressure detector attached toRead More

Float Level Detector

Float Level Detector

Basic, Instrumentations 23 Tháng Sáu, 2014 at 5:08 chiều

Ball Float The ball float method is a direct reading liquid level mechanism. The most practical design for the float is a hollow metal ball or sphere. However, there are no restrictions to the size, shape, or material used. The design consists of a ball float attached to a rod, which in turn is connected to a rotating shaft whichRead More

Gauge Glass Level Detector

Gauge Glass Level Detector

Basic, Instrumentations 23 Tháng Sáu, 2014 at 5:01 chiều

Gauge Glass A very simple means by which liquid level is measured in a vessel is by the gauge glass method (Figure 1). In the gauge glass method, a transparent tube is attached to the bottom and top (top connection not needed in a tank open to atmosphere) of the tank that is monitored. The height of the liquid inRead More