TUNA 20

TUNA 20 has been designed to measure wind speed and outside air temperature. High wind shield factors cool down buildings faster and with wind measurement the heating system can be compensated to take the cooling effect into account.

Technical data:
• Supply: 24 VAC/DC (22-28VAC/DC), <1,5 VA • Measurement ranges: wind speed 0...20 m/s; temperature -50…50 °C • Outputs: 0...10 V, < 2mA; 4...20 mA, < 600 ohm • Deviation, wind speed: < 20 % of the measurement, (at 25 °C) • Deviation, temperature: < 0,5 °C (at 25 °C, > 0,2 m/s)
• Operating temperature: -50...50 °C
• Time constant: 8s ( 63%)
• Mounting: Wall mounting with screws
• Protection class: IP 54 (transmitter)
• Materials: PBT, PC, PA plastics and painted steel