CS Instruments VA 570 Inline Flow Sensor (DN 40 measuring section with flange)

Measuring range: See table

Accuracy:

Accuracy class (o.M.V. = of measured value) (o. F. S. = of full scale): ± 1.5% of m.v. ± 0.3 % of f.s.; ± 1.0% of m.v. ± 0.3 % of f.s.

Accuracy indications: relative to ambient temperature 22°C ± 2°C, system pressure 6 bar

Repeatability: 0.25% of m.v. in case of correct mounting (mounting aid, position, inlet section)

Measuring principle: Thermal mass flow sensor

Response time: t90 < 3s

Operating temperature range sensor tube/display unit: 

-40… 180°C (phiên bản tiêu chuẩn, ống cảm biến)

-20… 70°C (đơn vị hiển thị)

-20… 120°C (phiên bản ATEX)

Outputs:

Standard: 1 x 4…20 mA analogue output (not electrically isolated), pulse output, RS 485 (Modbus-RTU).

Optional: 2 x 4 ... 20 mA active, Modbus TCP, HART, Profibus DP, Profinet, M-Bus

Burden: < 500 Ohm

Additional average value calculation: for all parameters freely adjustable from 1 minute up to 1 day, e. g. 1/2 hours average value, average day value

Protection class: IP 67

Material: Die-cast aluminum housing, sensor tube stainless steel 1.4571

Operating pressure: 16 bar, in special version 40 bar

Power supply: 18…36 VDC, 5 W

Approval: ATEX II 2G Ex db IIC T4 Gb, ATEX II 2D Ex tb IIC T90 °C, Db, DVGW