Whether in commercial or industrial halls and buildings, or in residential buildings: the right exhaust and supply air is what counts. Because only when polluted air is extracted and simultaneously replaced by fresh air is an optimum climate created for living or working.
Our solutions in the field of air flow technology include air flow sensors and linear air flow sensors. The new INT511 air flow sensor is characterized by the high resistance of the sensor tip to dirt and cleaning agents as well as the direction-independent installation, making it particularly user-friendly.
The new generation of the INT511 air flow sensor represents a consistent further development of the predecessor model and completes the product portfolio of KRIWAN Industrie-Elektronik in the field of air flow sensors. The high demands that KRIWAN places on its products have resulted in an outstanding airflow sensor. This impresses above all with its high resistance to environmental conditions. In addition, the INT511 can be used flexibly. Both a direction-independent installation and an individual setting of the start-up bridging and the switch-off value are possible.
The new KRIWAN air flow sensor is used for air flow monitoring in building services, e.g. for monitoring:
High resistance to environmental conditions
Flexible use
Easy installation
Stand-alone Solution
Viewing the status of the INT511 via Duo LED
| Designation | INT511 Air flow sensor | INT511 Air flow sensor |
| Article number | 20N842S021 | 22N842S021 |
| Supply voltage | AC/DC 50/60 Hz 24 V ±10 % 2 VA | AC 50/60 Hz 115-230 V ±10 % 3 VA |
| Adjustable limit value in the monitoring range (VL) | 0,2-10m/s | |
| Restart delay | 2min | |
Switching hysteresis 0,2 m/s - 0,9 m/s 1,0 m/s-10m/s |
± 0,1 m/s ± 0,3 m/s | |
| Strength | For flow velocities up to 35 m/s | |
| Protection class | IP65 | |
| Mounting position | Independent of the flow direction | |
The KRIWAN INT512 linear air flow sensor measures airflow velocities using the calorimetric measuring principle, it works temperature compensated. The linear output signal is proportional to the air flow and can be used on site for air flow regulation in controllers, in building services or for display.
The KRIWAN INT512 linear air flow sensor operates according to the calorimetric measuring principle and detects airflow velocities of 0.2...1m/s or 0.2...10m/s. The output is an analogue voltage of DC 0...10V, referred to L-, is available at the output. This linear signal is suitable for further processing in limit value switching relays, controllers, display instruments and in DDC/ZLT systems.
| Designation | INT512 linear air flow sensor | INT512 linear air flow sensor | INT512 linear air flow sensor | INT512 linear air flow sensor |
| Article number | 13N137S40 | 13N138S40 | 13N139 | 13N140 |
| Coverage | 0,2...1m/s | 0,2...10m/s | 0,2-1m/s | 0,2-10m/s |
| Supply voltage | DC 24V ±20% | DC 24V ±20% max. 50mA | ||
| Output voltage | DC 0...10V, limited to 10,5V | DC 4-20mA, limited to 20,7mA | ||
| Accuracy (ϑU 5...45°C and 1013hPa) - for detection range 0,2...1m/s - for detection range 0.2...10m/s | ±(0,03m/s +5% from MW) ±(0,3m/s +5% from MW) | |||
| Strength | For airflow velocities of max. 35m/s | |||
| Mounting position of the probe | Arrow in flow direction | |||
| Protection class | IP20 | |||
The KRIWAN air flow sensor INT510 monitors the flow velocity of air in the medium temperature range of -5...+60°C using the calorimetric measuring principle. The air flow sensor is temperature compensated.
The KRIWAN INT510 air flow sensor monitors airflow velocities in the range 0.2...1 or 0.2...10m/s according to the calorimetric principle. An equivalent analogue voltage of DC 0...10V, referenced to L-, is available at the output. This signal is suitable for further processing in limit value switching relays, controllers, display instruments and DDC/ZLT analogues, etc.
| Designation | INT510 air flow sensor | INT510 air flow sensor |
| Article number | 13N135S40 | 13N136S40 |
| Monitoring area | 0,2...1m/s | 0,2...10m/s |
| Supply voltage | DC 24V ±20% | |
| Output voltage | DC 0...10V, limited to 10,5V | |
| Minimum load resistance | 10kΩ | |
| Accuracy (ϑU 5...45°C and 1013hPa) - for detection range 0,2...1m/s - for detection range 0.2...10m/s |
±(0,03m/s +5% from MW) | |
| Max. perm. air velocity | 35m/s | |
| Mounting position of the probe | Arrow in flow direction | |
| Protection class | IP20 | |
