Selection of electromagnetic flowmeter for water treatment
The measurement principle of water treatment intelligent electromagnetic flowmeter is Faraday's law of electromagnetic induction. The main components of the sensor are: measuring tube, electrode, excitation coil, iron core and yoke shell. It is used to measure the volume flow rate of conductive liquid with conductivity greater than 5μS/cm. It is an inductive instrument for measuring the volume flow rate of conductive medium. In addition to measuring the volume flow rate of general conductive liquids, it can also be used to measure the volume flow rate of strong corrosive liquids such as strong acids and bases and uniform liquid-solid two-phase suspended liquids such as mud, ore pulp and paper pulp. It is widely used in the flow measurement of industrial sectors such as petroleum, chemical industry, metallurgy, textile, papermaking, environmental protection, food and municipal management, water conservancy construction, river dredging and other fields.
Basic functions of electromagnetic flowmeter
Low frequency square wave excitation, excitation frequency: 1/10 power frequency, 1/16 power frequency, 1/25 power frequency; high frequency square wave excitation, excitation frequency: 1/2 power frequency (applicable to slurry measurement) (optional) ; Excitation current can be selected as 125mA, 187.5mA, 250mA; empty tube measurement function without additional electrodes, continuous measurement, fixed value alarm; flow rate measurement range: 0.1 --- 15 m/s, flow rate resolution: 0.5 mm/ Seconds; AC high-frequency switching power supply, voltage application range: 85VAC --- 250VAC; DC 24V switching power supply, voltage application range: 16VDC --- 36VDC; network function: MODBUS, HART (optional); Chinese, English display mode, (Other languages ??can be customized);
There are three totalizer totals in , which can be recorded separately: forward total, reverse total and difference total.
Power-off time recording function, automatically record the power interruption time of the meter system, and make up for the leaked flow; hour total recording function, record the total flow in hours, suitable for time-sharing measurement system; infrared handheld operating keyboard, remote Operate all functions of the converter by touch.