Instructions for use
Page 3
... + R copper - on an acoustic coupler as per EN 60268-7) 37 Ω 5 N ± 0.5 N approx. 3 m, open-ended 330 g green + L copper - The headphones comply with IEC 60645-1. R measured at 1 kHz, 1 mW) 125 Hz - 4 kHz < 1.5 dB 4 kHz - 12 kHz < 2 dB 500 mW (as per IEC 60318-3...(re 20 µPa) for the HDA 280 headphones and a coupler as per IEC 60318-1 and - Specifications Cat. HDA 280 Audiometric headphones Design approved by the PTB (German national institute for use with an audiometer! Important! The HDA 280 is designed for science and technology). Transducer...
... + R copper - on an acoustic coupler as per EN 60268-7) 37 Ω 5 N ± 0.5 N approx. 3 m, open-ended 330 g green + L copper - The headphones comply with IEC 60645-1. R measured at 1 kHz, 1 mW) 125 Hz - 4 kHz < 1.5 dB 4 kHz - 12 kHz < 2 dB 500 mW (as per IEC 60318-3...(re 20 µPa) for the HDA 280 headphones and a coupler as per IEC 60318-1 and - Specifications Cat. HDA 280 Audiometric headphones Design approved by the PTB (German national institute for use with an audiometer! Important! The HDA 280 is designed for science and technology). Transducer...
Product Sheet
Page 1
.... 009860 Technical Data Frequency response 20 Hz to exchangeable headband padding j Single-sided, exchangeable cable Replacement Parts j Headband Product Variants j HDA 280-N (24 units/carton) Cat. L red + R copper - HDA 280 Audiology | Special Headphones Description The HDA 280 is a pair of measurements j Soft, exchangeable ear pads j Space-saving design with collapsible, rotating ear-pieces j Comfortable to wear due...
.... 009860 Technical Data Frequency response 20 Hz to exchangeable headband padding j Single-sided, exchangeable cable Replacement Parts j Headband Product Variants j HDA 280-N (24 units/carton) Cat. L red + R copper - HDA 280 Audiology | Special Headphones Description The HDA 280 is a pair of measurements j Soft, exchangeable ear pads j Space-saving design with collapsible, rotating ear-pieces j Comfortable to wear due...