Flow sensor 230 1.8 ... 150 l/min
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Vortex flow sensor Flow sensor for liquid media Type 230 The flow sensor type 230 is based on the Kármán vortex trail. You can choose between various versions as integrated temperature measurement. The type 230 has a rugged construction of red brass. With no moving parts the flow sensor is not sensitive to debris, has marginal pressure loss and high accuracy. Flow range 1.8 ... 150 l/min Nominal diameters DN 10 / 15 / 20 / 25 Temperature measurement -40 ... +125 ºC + Flow measuring with voltage, current, pulse or frequency output + Temperature non-sensitive measuring principle + Excellent media resistance (measuring element not in contact with the media) + Wide application temperature range + Marginal loss of pressure + Measuring element not sensitive to debris + Direct temperature measurement in the medium + Drinking water approval KTW, W270, ACS, WRAS Huba Control Type 230 | Technical data subject to change | Edition 09/2020

Technical Overview Flow measurement Measuring principle Vortex Measuring range Nominal diameters Accuracy at < 50% fs (water) Accuracy at > 50% fs (water) Immediately. Therefore suitable for spigot use. Frequency output (unfiltered) Response time Frequency output (filtered) analogue output Piezoelectric sensor element 1.8 ... 150 l/min DN 10 / 15 / 20 / 25 < 1% fs < 2% measuring value Signal delay Response time Signal delay Response time Operating conditions Suitable for heating circuit water with the usual additives Medium Drinking water Media Ambient Temperature Ambient (2x 4 ... 20 mA)...

Analogue output - Electrical overview Temperature measurement (> 8 DN) Measuring principle Resistance Measuring range PT1000 @ T = 0 ºC Accuracy class B DIN EN 60751 @ T ≠ 0 ºC Measuring range Accuracy 0 ... 10 V Calculation temperature Measuring range Accuracy 4 ... 20 mA Calculation temperature Electronic Voltage output Current output Dual power output Power supply 11.5 ... 33 VDC 8 ... 33 VDC 10 ... 33 VDC Output flow (Q) anaogue signal 0 ... 10 V 4 ... 20 mA 4 ... 20 mA 0 ... 10 V – 4 ... 20 mA Output temperature (T) signal Load agianst GND or IN < 6 mA / < 100 nF 1) < (UIN - 8 V) / 20...

Frequency output (filtered) and pulse output - Electrical overview Temperature measurement Measuring principle Resistance Measuring range @ T = 0 ºC Accuracy Class B DIN EN 60751 @ T ≠ 0 ºC Self-heating at temperature sensor Temperature influences Conduction resistance to connector Electronic Power Supply 4.75 ... 33 VDC Output flow (Q) Level height (open collector) < 0.5 ... > UIN - 0.5 V Output temperature (T) Resistant signal PT1000 class B DIN EN 60751 Load agianst GND or IN > 1 kΩ / < 10 kΩ < 3 mA Current consumption load free (IIN) Electrical reliability Short circuit, reverse voltage...

Frequency output (unfiltered) - Electrical overview Temperature measurement Measuring principle Resistance Measuring range @ T = 0 ºC Accuracy Class B DIN EN 60751 @ T ≠ 0 ºC Self-heating at temperature sensor Temperature influences Conduction resistance to connector Electronic Power Supply 4.75 ... 33 VDC Output flow (Q) Level height (push-pull) < 0.5 ... > UIN - 0.5 V Output temperature (T) Resistant signal PT1000 class B DIN EN 60751 Load agianst GND or IN < 1 mA / < 100 nF Current consumption load free (IIN) < 2 mA Electrical reliability Short circuit, reverse voltage and external...

Accessories (supplied loose) Order number Straight-wire box for connector M12x1 with cable 3-pole 200 cm Corner-wire box for connector M12x1 with cable 3-pole 200 cm Straight-wire box for connector M12x1 with cable 5-pole 200 cm (with temperature) Corner-wire box for connector M12x1 with cable 5-pole 200 cm (with temperature) Straight-wire box for connector M12x1 screwing terminal Tube mounting instructions Consider the following to ensure the correct function of the sensor. • Only diameter changes from large to small are allowed. • Avoid repeated elbows in the same level at entryside...

Connector M12x1 without temperature measurement Frequency output filtered Pulse output Connector M12x1 with temperature measurement Ω Voltage output with temperature measurement PT1000 Current output with temperature measurement PT1000 Current output with temperature measurement 4 ... 20 mA Frequency output filtered Pulse output frequency output with temperature measurement PT1000 Voltage output Current output Frequency output unfiltered Voltage output with temperature measurement 0 ... 10 V Pin Colour 1 brown 3 blue 1 4 black 1 brown 2 white 3 blue 2 4 black 5 gray «OUT T» is only in...

With the following definitions we are able to correct the influence of media with higher viscosity than water (= media viscosity > 1.8 cST) in order to reach 0 a measuring accuracy of 3% fs in the range of 1.8 - 4 cST and of 4% in the range of 1 - 14 cSt3(υ = 4 4 2 viscosity 6 cSt). 8 in 7 5 9 10 11 12 13 14 Viskosität in cSt Minimal detektierbarer Durchfluss Definition of viscosity of glycol-water-compound Kinematische Viskosität Propylenglykol‐Wasser Kinematic viscosity propylene glycol water Minimaler Durchfluss in l/min 25 Kinematische Viskosität Ethylenglykol‐Wasser Kinematic viscosity...

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