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Stage A Checks
Describes Stage A Calibration checks on Audiometers
Question | Answer |
---|---|
Who should carry out the listening tests? | Someone with sufficiently normal hearing the detect changes |
1a | Clean and check the audiometer and accessories |
1b | Check for wear on cushions, plugs, main leads and accessory leads |
What shouls happen to damaged parts? | They should be replaced |
When replacing components in the audiometer what should be preformed? | Stage B Checks |
2a | Switch on equipment and leave for recommended warm up time or 5 minutes |
What should be checked on battery powered/ portable audiometers? | Battery charge |
2b | Check serial number on tranducers (supra-aural and bone conductor) are the same as on the audiometer |
3a | Frequency sweep at 10 or 15dB HL air conduction, Left and Right |
3b | Frequency sweep at 10 or 15dB HL bone conduction, Once only |
4a | Frequency sweep of masking level at 60dB HL, Right and Left |
5a | High level frequency sweep at 60dB HL air conduction, Left and Right |
5b | High level frequency sweep at 40dB HL bone conduction |
What should you be listening for? | Proper function, Distortion, Clicks at presence of tone etc |
6a | Checks all components for distortion and intermittancy |
7a | Check swithces and lights are functioning normally |
8a |