Instructions for use
Page 3
... dB 500 mW (as per IEC 60318-1 and - on B&K 4152 < 10 min. No. Specifications Cat. L/R deviation Max. HDA 280 Audiometric headphones Design approved by the PTB (German national institute for the HDA 280 headphones and a coupler as per EN 60268-7) 37 Ω 5 N ± 0.5 N approx. 3 m, open-ended 330 g ...green + L copper - Important! SPL on an acoustic coupler as per IEC 60318-3 Headphone input voltage 500 mVrms Pure...
... dB 500 mW (as per IEC 60318-1 and - on B&K 4152 < 10 min. No. Specifications Cat. L/R deviation Max. HDA 280 Audiometric headphones Design approved by the PTB (German national institute for the HDA 280 headphones and a coupler as per EN 60268-7) 37 Ω 5 N ± 0.5 N approx. 3 m, open-ended 330 g ...green + L copper - Important! SPL on an acoustic coupler as per IEC 60318-3 Headphone input voltage 500 mVrms Pure...
Product Sheet
Page 1
...headband padding j Single-sided, exchangeable cable Replacement Parts j Headband Product Variants j HDA 280-N (24 units/carton) Cat. No. 009861 Cat. R Features j Position-independent audiometer headphones j Type approved by the German Physikalisch-Technische Bundesanstalt (PTB) as per IEC ... Excellent reproducibility of closed Nominal inmpedance 37 Ω Characteristic SPL 117 dB (at 1 kHz, 1 mW) Max. 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 ...
...headband padding j Single-sided, exchangeable cable Replacement Parts j Headband Product Variants j HDA 280-N (24 units/carton) Cat. No. 009861 Cat. R Features j Position-independent audiometer headphones j Type approved by the German Physikalisch-Technische Bundesanstalt (PTB) as per IEC ... Excellent reproducibility of closed Nominal inmpedance 37 Ω Characteristic SPL 117 dB (at 1 kHz, 1 mW) Max. 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 ...