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The compact air-ultrasonic sensor Type OCL has been developed for direct connection to portable and permanent flow transmitters such as NivuFlow 750, OCM Pro and PCM.
Thanks to the slim construction it is ideally suitable for use in the crown of small and large pipes, on channel ceilings or other constructions.
The low dead zone allows to measure variable levels in flow applications almost up to full filling. The integrated temperature measurement ensures very high accuracies over the entire very wide measurement range.
The ATEX approval in Ex Zone 1 is a standard feature.
|Measurement principle||Ultrasonic transit time|
|Measurement frequency||120 KHz|
|Ex-Approval||G Ex ib IIB T4 Gb (ATEX)|
Ex ib IIB ic (IECEX)
|Operating temperature||-20°C to +50 °C (+40 °C in Ex Zone 1)|
|Storage temperature||-30°C to +70 °C|
|Operating pressure||max. 1 Bar|
|Cable lengths||10/15/20/30/50/100 m|
|Level measurement range||0 to 200 cm|
|Dead zone (starting at ground plate)||14 cm|
|Measurement uncertainty||< +/- 0.5% of measurement range or +/- 5 mm of measurement range (whichever is greater)|
Specifications subject to change.
Technical instructions for correlation sensors and external electronic box
Installation instruction for save installation
EC type examination certificate sensor type POA incl. supplement
Ultraschall-Aktivsensoren POA / OCL / CS2