CeTing electro-audiometer hearing plan electricity hearing testing necessary pure tone electro-audiometer digital hearing plan
has the following characteristics
Boot automatically self-inspection
Two separate hardware configuration channel
Simple the key operate,
The standard gas lead frequency test range 250-8000 Hz, good-10 dB-120 dB
Output way can choose the headset and the gas bone headphones in two ways
Digital hearing plan technology index
Channel: two separate channels.
Pure tone frequency: gas guide 250 HZ-8 KHZ
Bone guide 250 HZ-4 KHZ (optional)
Frequency error less than 1%
Decay: in the whole range 1/2/5 dB increment
Decay accuracy: in the whole range dBHL better than 3
Come to the range: gas lead in the intermediate frequency for-10 to 120 dBHL
Bone in intermediate frequency for-when the 10 to 75 dBHL
Cover: white noise (broadband noise)
Total harmonic distortion degree
The gas is less than 2.5%
Less than 5% bone guide
Alternative converter
The gas TDH39 (standard configuration)
Bone lead B71 (optional)
The head of the static pressure with fixed:
TDH you. 5 N + /-0.5 N
B-71:5.4 N + /-0.5 N
Transportation and storage
Temperature:-40 °C and 35 °C
Humidity: 10% to 90%, not the condensate
Pressure: 500 hPa to 1060 hPa
Running environment
The mode of operation: continuous
Temperature: °C and 35 °C
Humidity: 30% to 90%, not the condensate
Pressure: 860 hPa to 1060 hPa
Preheat time: less than 10 minutes
specifications
Size: 320 * 220 * 91 mm
Weight: about 3 Kg
Power supply: DC9V
Power consumption: less than 30 W
Conform to the standards
The hearing program: EN0645-1, EN60645-2, EN60645-4 and GB/T7341.1
ECM: EN60601-1-2
pure tone audiometer
