Technical Information
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Measuring range: |
up to 50 Nm/s, low-speed version* up to 92.7 Nm/s, standard version* up to 185 Nm/s, max. version* up to 224 Nm/s, high-speed version* * Measuring range Nm³/h for different pipe diameters and gases, see table measuring ranges flow * All measured values related to DIN 1343 standard conditions 0° and 1013 mbar ex works |
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. on request: ± 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 < 3 s |
Operating temperature range sensor tube/display unit: |
-40…180 °C standard version, sensor tube -20…70 °C display unit -20…120 °C for ATEX version |
Adjustment possibilities via display, external hand-held device PI 500, PC Service Software, remote diagnosis: |
Nm³/h, Nm³/min, Nl/min, l/s, ft/min, cfm, kg/h, kg/min, inner diameter, reference conditions ° C/° F, mbar/ hPa, zero point correction, leak flow volume suppression, scaling analogue output 4...20 mA, pulse/alarm, error codes etc. |
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: |
IP67 |
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 |