Global
Level Sensors
OCL Air-Ultrasonic Sensor
Part No. OCLfor level measurement in combination with flow measurents
Intelligent air-ultrasonic sensor for connection to flow transmitters such as NivuFlow 750, NivuFlow 7550, NP8 and other flow meters in the NF series for non-contact level measurement in part filled flow measurement places.
![[Translate to English:] OCL zur Füllstandmessung in Rohren und Kanälen](/fileadmin/user_upload/Produkte/Fuellstandmessung/Beruehrungslose-Fuellstandsmessung/OCL-Luftultraschallsensoren/OCL-sensor-1.png "[Translate to English:] OCL zur Füllstandmessung in Rohren und Kanälen")
- Direct sensor connection to flow transmitters such as NivuFlow 750, NivuFlow 7550, NP8 and other flow meters in the NF series
- Small construction height
- Low dead zone
- Digital echo processing and linearisationNarrow beam angle
- Optimised construction for small pipes
- Easy installation using pipe mounting system or direct fasting using bolts
- View echo profiles on the transmitter
- Integrated temperature compensation
- ATEX approval for Ex-Zone 1
The compact air-ultrasonic sensor Type OCL has been developed for direct connection to the permanent NF flow transmitters series NF7 and NF 7550..
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.
Technical Data
| Common | |
|---|---|
| Measurement principle | Ultrasonic transit time |
| Measurement frequency | 120 KHz |
| Protection | IP 68 |
| Ex-Approval | G Ex ib IIB T4 Gb (ATEX) Ex ib IIB ic (IECEX) |
| Operating temperature |
|
| Storage temperature | -30°C to +70 °C |
| Operating pressure | max. 1 bar |
| Construction | Wedge sensor for installation in the channel crown |
| Medium-contacting materials | Polyurethane, stainless steel 1.4571, PPO GF30, PA |
Level Measurement |
|
| Measurement range | up to 200 cm |
| Dead zone (starting at mounting plate) | 14 cm |
| Measurement uncertainty | ≤ 0.5 % of final value |
Temperature Measurement |
|
| Measurement range | -20 °C to +50 °C |
| Measurement uncertainty | ±0,5 K |
Specifications subject to change.
Downloads
Technical Instructions | Correlation Sensors and external Electronic Box (Rev. 12)
Mounting Instruction | Correlation and Doppler Sensors (Rev. 08)
EC type examination certificate sensor type POA, OCL and CS2
EC type examination certificate sensor type POA incl. supplement
IECEx Certificate of Conformity "Sensors type POA, OCL and CS2"
EU Declaration of Conformity | Ultrasonic Active Sensors POA / OCL / CS2
EU Declaration of Conformity | “Ex” Ultrasonic active sensors POA / OCL / CS2
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