General
In ventilation and air conditioning plants to:
- Monitor differential pressure, underpressure and overpressure
- Monitor air filters and air flows
- Recognize torn fan belts
Differential pressure switches can be used in clean rooms, kitchens, etc.
Features
- For ventilation and air conditioning plants
- To monitor air filters, air flow, fan belts
- To monitor pressure in clean rooms, kitchens etc.
- Easy to mount
- >1 mio switching cycles
- Highly precise setting
- Long-term stability
Specifications
- Make: Siemens
- Model: QBM81-10
- Digital outputs: CO: 1 , Potential-free
- Permissible operating pressure: 7.5 kPa
- Ambient temperature, operation: -30…85 °C
- Mounting position:Diaphragm vertical, pressure connection pointing downward
- Digital output, switching voltage: AC 24…250 V; 24 V
- Digital output, switching current: 0.01…5 (3)A
- Measuring range, pressure: 100…1000 Pa
- Pressure connection: Connecting branch∅ 6.2 mm
- Degree of protection: IP54
- Dimensions (Ø x L): 81 x 90 mm
