Application
The QALCOSONIC F2 is an ultrasonic flow sensor designed as a sub-assembly of a heat meter for measuring the volume of heat-conveying liquids in heating and cooling systems. It converts this measurement into an electrical pulse signal and is used with approved heating/cooling energy calculators. It is suitable for commercial energy measurement in district heating plants, factories, and residential buildings.

Special Features
- Accuracy class 2
- Nominal flow options: DN15/20/25/40/65/80/100
- Dynamic range: Qp/Qi = R 100/250
- Ambient class B
- Protection class: IP 65/67
- Nominal pressure: PN16/25 bar
- Liquid temperature range: 5°C to 130°C
- Power supply: Battery or External 24V AC/DC
- Battery lifetime: Over 12 years
- Flexible mounting positions
- No straight sections required up to DN50
- No air measurement

Technical Data
- Flow rate limits: 0.6 to 60 m³/h
- Medium temperature: +5°C to +130°C
- Protection class: IP65/67
- Ambient temperature: +5°C to +55°C
- Installation: Indoor, outdoor, in pits or installation boxes
- Nominal pressure: PN16/25 bar
- Cable lengths: 1.2m to 200m
- Battery lifetime: 12 years
- Calculator mounting: Standard DIN-rail

Approvals
- MID
- EN 14154

Power Supply
- Options include AA battery (3.6 V, 2.4 Ah) with a lifespan of at least 12 years, or external power supply (12-42 V DC or 12-36 V AC) with backup battery.

Dimensions and Mounting
- Calculator dimensions: 117 mm x 44 mm x 89.5 mm
- Flow sensor mechanical dimensions vary by DN size, with lengths ranging from 110 mm to 360 mm and weights from 0.7 kg to 15 kg.

Contact Information
- Axioma Metering UAB, Lithuania
- Email: [email protected]
- Website: axiomametering.com