Airflow Sensor - Precise airflow monitoring
€336.60
AirFlow Sensor: Precise Airflow Monitoring for Server Rooms and HVAC
The HW-group AirFlow Sensor is a calorimetric sensor designed to detect airflows below or above an adjustable threshold in the range of 1 to 10 m/s. With its normally open (NO) relay contact, it is ideal for server room monitoring, HVAC monitoring, and ventilation detection in data centers, industrial facilities, and building technology. The sensor operates on 24 V DC and can be seamlessly integrated into HW-group devices such as Poseidon2, Ares, or STE2 to enable remote monitoring via LAN, GSM, SNMP, or email. The robust construction with IP65 protection and a titanium sensor surface ensures reliability in demanding environments.
Main Features of the AirFlow Sensor
The AirFlow Sensor 5101 offers precise airflow detection with an adjustable threshold and high durability. Here is an overview of the key features:
- Calorimetric Measurement: The airflow sensor detects airflows in the range of 1 to 10 m/s (100–1000 cm/s) with an adjustable threshold, ideal for ventilation detection and wind detection.
- Relay Output: The normally open (NO) relay contact (3A at 30 V DC / 250 V AC) closes when the airflow exceeds the set threshold, enabling easy integration into alarm systems.
- Adjustable Sensitivity: A potentiometer allows precise adjustment of the threshold, with highest sensitivity in the range of 100–400 cm/s.
- Robust Design: IP65 protection class, PBT housing (Pocan), and titanium sensor surface ensure durability in harsh environments.
- Compatibility: Compatible with HW-group devices such as Poseidon2, Ares, STE2, or Damocles via digital inputs (dry contact) for seamless Poseidon2 integration.
- Easy Installation: Includes mounting bracket, 2 m PUR cable, and compact dimensions (140 mm length, 23 mm diameter) for flexible placement.
Application Areas of the AirFlow Sensor
The AirFlow Sensor is versatile and suitable for scenarios where reliable airflow monitoring is required. Typical application areas include:
- Server Rooms and Data Centers: Monitoring air circulation to ensure cooling of servers and equipment and to prevent overheating.
- HVAC Systems: Detection of ventilation operation in air conditioning and ventilation systems for efficient energy management (HVAC monitoring).
- Industrial Facilities: Monitoring of airflows in production halls or technical rooms to ensure optimal operating conditions.
- Remote Monitoring: Integration with Poseidon2 or Ares for real-time notifications via email, SMS, or SNMP trap when airflow changes are detected.
- Wind Detection: Use in environments where air movement or wind needs to be detected, e.g., in building management systems.
Why the AirFlow Sensor is the Right Choice
The AirFlow Sensor provides a reliable solution for airflow monitoring in critical environments. Compared to other safety detectors, it stands out thanks to its calorimetric technology, adjustable sensitivity, and robust construction. Compatibility with HW-group devices enables easy integration into existing monitoring systems, while the IP65 protection class and titanium sensor surface guarantee high durability. The simple installation and configuration make it ideal for use in server rooms, HVAC systems, and industrial applications.
Technical Details
- Measurement: Calorimetric airflow sensor, threshold 100–1000 cm/s (1–10 m/s)
- Output: Normally open (NO) relay contact (3A at 30 V DC / 250 V AC)
- Power Supply: 24 V DC ± 25%, 1 VA
- Sensitivity Range: Highest sensitivity at 100–400 cm/s, adjustable via potentiometer
- Power-on Delay: 60 seconds
- Response Time: 3–60 seconds
- Operating Environment: -10 °C to +50 °C, max. 90% relative humidity (non-condensing)
- Protection Class: IP65
- Dimensions: 140 mm length, 23 mm diameter
- Material: PBT housing (Pocan), titanium sensor surface
- Cable: 2 m PUR cable
- Connection: Connection via digital inputs (dry contact) to Poseidon2, Ares, or STE2
Integration with HW-group Products
The AirFlow Sensor is optimally matched to HW-group devices such as Poseidon2, Ares, STE2, or Damocles. By connecting with these devices, you can build a comprehensive monitoring system that reports airflow alarms in real time via LAN, GSM, SNMP, or Modbus/TCP. The free HWg-PDMS software enables analysis and export of data to Excel for detailed reports. Connection to the SensDesk portal offers additional visualization options via Android or iOS apps.
Installation and Setup
Installation of the AirFlow Sensor is straightforward. The sensor is mounted at a suitable location using the included mounting bracket, ideally in the airflow of a ventilation system or air conditioner. The threshold is set via a potentiometer to achieve the desired sensitivity. The sensor operates on 24 V DC (external power supply required, not included) and is connected to the monitoring system via digital inputs (dry contact). The LED indicators (1 x red, 1 x green) show the operating and alarm status.
The HW-group AirFlow Sensor is the ideal solution for precise airflow monitoring and remote monitoring in server rooms, HVAC systems, and industrial applications. With its calorimetric technology, adjustable sensitivity, and seamless integration into HW-group systems, it provides reliable protection against insufficient ventilation or system failures. Optimize your server room monitoring with the AirFlow Sensor.
Product Features:
- Air flow monitor
- Cylindrical type
- Process connection: Ø 23 mm
- Application: Gases
- Pressure range: -10...50 bar
- Medium temperature: -10...50°C
Electrical Data:
- Electrical version: DC
- Operating voltage: 24 VDC ± 25%
- Power consumption: 1 VA
- Insulation resistance: > 100 MΩ (500 V DC)
Outputs:
- Output function: Relay energized when flow is present
- Contact rating: 3 A (30 V DC / 250 V AC)
Measuring and Adjustment Range:
- Adjustment range: 100...1000 cm/s
- Highest sensitivity: 100...400 cm/s
- Max. temperature gradient of medium: 5 K/min
Response Times:
- Power-on delay: 60 s
- Response time: 3...60 s
- Switching point adjustment: Potentiometer
Environmental Conditions:
- Ambient temperature: -10...50°C
- Max. relative humidity: 90%
- Protection class: IP 65
- MTTF: 1202 years
Mechanical Data:
- Process connection: Ø 23 mm
- Weight: 0.19 kg
- Materials (media-contacting parts): PBT; Titanium
- Housing material: PBT; Sensor surface: Titanium
Display and Controls:
- Function indicator LED: 1 x red / 1 x green
Electrical Connection:
- Connection: PUR/PVC cable / 2 m; 4 x 0.5 mm²
- Wire colors: Brown (BN), Blue (BU), Black (BK), White (WH)
Accessories:
- Mounting clamp (E40048)
- Screwdriver
- Packing unit: 1 piece
Monitoring devices
Other available sensors
Extension units
Accessories
Mounting Plate D Bracket for Ares and Poseidon2 Operating environment: -3°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 74 x 6 x 120 (W x H x D) / 58g Warranty: 24 months Wall mounting plate for Ares, Poseidon2 3266/68 and other products.
DB9 LapLink Cable 2m A LapLink cable (also known as Lablink or null-printer cable) is a cable used to connect two computers directly via a cable connection. Housing: Plastic Type: Cable
DIN-Rail Box Set A mounting kit for installing HW-group devices on a DIN rail. Applications and Use: Mounting kit for installing HW-group devices with metal housing on a DIN rail. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 45 x 11 x 105 (W x H x D) / 22g
Mounting Kit Screw set for mechanical mounting Applications and Use: Screw set for mechanical fastening
Mounting Plate E- 1U Rack (cabinet) mounting plate, 1U mounting for HW-group Ares and Poseidon2 devices Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 127 x 45 x 94 (W x H x D) / 137g Warranty: 24 months Rack (cabinet) mounting plate, 1U mounting for HW-group Ares, Poseidon2 3266/3268 and other products.
Mounting Plate L DIN Rail DIN rail mounting plate for Ares, Poseidon2 3268, and other products. Features: Metal housing Wall mounting Applications and Use: Profiles for metal-encapsulated HWg devices for wall mounting. Dimensions: 150 x 120 x 45 (W x H x D) / 65g Warranty: 24 months
Mounting Kit for Poseidon2 4002 and HWg-SMS-GW3 Applications and Use: Mounting kit for Poseidon2 4002 and HWg-SMS-GW3 Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 136 x 45 x 16 (W x H x D) / 165g Warranty: 24 months
Rack Shelf 1U A versatile solution for easy mounting of HW-group devices in 1U racks. Operating environment: -30°C - 85°C / 0%RH - 100%RH Storage environment: -30°C - 60°C / 5%RH - 95%RH Dimensions: 485 x 44 x 104 (W x H x D) / 597g Warranty: 24 months Housing: Metal Type: Wall mounting This shelf makes it easy to use devices in racks. You can even combine different 1U products and sensors.
Software
Manufacturer information:
HW group s. r. o.
Rumunská 26
Prague, 120 00
Czech Republic
Phone: +420 222 511 918
Email: sales@hwg.cz
Responsible person:
Didactum® Security GmbH
Marsweg 17
48163 Münster
Deutschland
Fon: +49 - 2501 - 9 78 58 80
Email: info@didactum-security.de
