Description
- Monitors air filters, airflow and fan belts | Can be used to monitor pressure in clean rooms, kitchens, etc. | Easy to mount | Long-term stability | Highly precise setting
- Pressure Range: 50 to 500 Pa (0.20 to 2.00 Inches WC or 0.5 to 5 mbar) | Ambient Operation temperature: –4°F to 185°F (–20°C to 85°C) | Ambient Storage temperature: –40°F to 185°F (–40°C to 85°C)
- Ambient Humidity: <90 % r.h. (non-condensing) | Reset: Automatic | Max. unilateral overload: for 30 to 75 °C is 7500 Pa ;for -30 to 85 °C is 5000 Pa | Permitted media Air, non-corrosive gases
- Protection class: III according to EN 60730-1 | Protection degree of housing: IP54 | Electrical connection: 3 screw terminals | Cable entry: PG11 cable gland | Pressure connections: Male, dia. 6.2 mm
- Supply Scope: 1 unit of QBM 81-5, 2 duct adaptors, 4 fixing screws, 2 m tubing, 5/8 mm diameter & Instruction manual | Applications: HVAC, Monitors Air Filters, Airflow and Fan Belts, Clean Rooms, Kitchens, etc.
QBM 81-5 is a Differential pressure switch for monitoring air pressure in HVAC systems. Differential Pressure Switches are used to monitor differential pressure, under pressure and overpressure in HVAC installations. By measuring differential pressure, they monitor the state of air filters, prevailing airflows, damaged fan belts and overpressure in clean rooms, kitchens, etc. They are also used to monitor differential pressure and positive and negative relative pressure in HVAC systems.