Paddlewheel Flow Sensors is highly repeatable, reliable performance, rugged sensors & little or no maintenance. The Model ATN400 has open collector signal output (sink) and has a wide dynamic flow range of 0.5 to 5 m/s ( 0.3 to 20 ft/s ). The sensor use to measures liquid flow rates in full pipe. Sensors can be installed in 15 NB to 300 NB (0.5 to 12 in.) Line size. To install this sensor in process line, we offer different types of T-fitting. These T-fittings, which include “T” with threaded & flange end, weld adapter and block design to seat the sensor to the proper insertion depth into the process flow.

Flow Rate Range


0.5 to 5 m/s (1.6 to 16.4 ft./s)

Pipe Size Range


15 NB to 300 NB (0.5 to 12 in.)



±1% of full range



±0.5% of full range

Min. Reynolds Number



Required Wetted Parts



Sensor Body


Polypropylene (black) or PVDF (black)



Viton / Teflon

Rotor Pin


Hastelloy C / Tungsten Carbide



Black PVDF.



38 Hz per m/s nominal



(11.6Hz per ft/s nominal)

Supply voltage


10 to 24 VDC regulated

Supply current


<20 mA @ 10 to 24 VDC

Output Type


Pulse output ( NPN )

Cable Length


5 m (16.4 ft.) Standard

Operating Pressure


PP: max7 bar @ 25°C



PVDF: max12 bar @ 25°C

Operating Temperature


PP: -10°C to 70°C



PVDF: -10°C to 100°C


Pink printed dress, woven, round neck with a keyhole and buttoned closure at the back, sleeveless, concealed zip up at left side seam, belt loops along waist with slight gathers beneath, brand appliqu?? above left front hem, has an attached lining.

Comes with a white, slim synthetic belt that has a tang clasp.