Vortex flow sensor Flow sensor for liquid media Type 236 The type 236 is based on the type 210 but incorporates a brass housing. The Vortex Sensor type 236 has a rugged construction of brass connection. This flow sensor is available with a larger variety concerning power supply and outputs. You can choose between various versions as integrated temperature measurement. With no moving parts the flow sensor is not sensitive to debris, has marginal pressure loss and high accuracy. + 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 ACS, WRAS Huba Control Type 236 | 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 0.9 ... 240 l/min DN 8 / 10 / 15 / 20 / 25 / 32 < 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...

Analogue output - Electrical overview Temperature measurement Measuring principle Resistance Measuring range @ 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 PT1000 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 < (UIN - 8 V) / 20 mA < (UIN - 10 V) / 20 mA Load agianst GND or IN < 6 mA...

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 and...

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 voltage...

Accessories (Accessories supplied loose) Order number Straight-wire box for connector M12x1 with cable Corner-wire box for connector M12x1 with cable Straight-wire box for connector M12x1 with cable Corner-wire box for connector M12x1 with cable 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 minimum 5xDN for alternative elbows Huba Control Type 236 | Technical data subject to change...

Connector M12x1 without temperature measurement Frequency output filtered Pulse output 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 Connector M12x1 with temperature measurement 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 operation...

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 MinimalViskosität in cSt detektierbarer Durchfluss Definition of viscosity of glycol-water-compound Kinematische Viskosität Ethylenglykol‐Wasser Kinematic viscosity ethylene glycol water 60 Kinematische Viskosität Propylenglykol‐Wasser Kinematic viscosity propylene glycol water Definition...

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