| Channels |
: |
Two separate channels, carrying
stimulus or masking |
| Frequencies |
: |
125, 250, 500, 750, 1000, 1500,
2000, 3000, 4000, 6000, 8000 Hz |
| Accuracy |
: |
Frequency : 0.05%
Hearing Level Electrical : within +/- 1 dB
of indication |
| Calibration |
: |
Software calibration of Phone
L & R and Bone. Calibration
Data is stored in non volatile memory. |
| Distortion |
: |
Tone : < .1% |
|
Masking
|
:
|
Contralateral, Broadband Noise
|
|
Attenuator
|
: |
-10 to 120 dB in steps of 5 dB
|
| External Inputs |
: |
Speech/Talkover Microphone,
Patient Microphone (optional)
BC output for Bone Conductor |
| Outputs |
: |
AC output for Left & Right
headphones
Stereo Free Field output for connection to
stereo free field Amplifier) |
| Display |
: |
Backlit LCD, two rows of 16
characters with cursor
Bar Graph for Microphone signal |
| Patient |
: |
Talkover microphone (electret),
talk back amplifier |
Communication
Key functions
|
: |
| Frequency
up & down |
Stimulus
up & down |
| Masking
level up & down |
Test selector
(PT/SP/TD) |
| Output
Selector(AC/BC/FF) |
L/R Shift |
| Interrupt
|
Interrupt+10 |
| Talkover
|
Save threshold |
| Save 'No
Response' |
New Patient
(Erase previous data) |
|
| Power Supply |
: |
AC 230V +/- 10%, 50 - 60 Hz |
| Consumption |
: |
Approx. 20 VA |
|
Operating
Environment
|
: |
Temperature : 10° - 45° C
Humidity : 30 - 90 % NC
|
| Mechanical |
: |
Dim. : 230(W) x 82 (H) x 280
(D), Weight : 3 Kg
Plastic Cabinet |
| Standard Accessories |
:
|
Talkover/Speech Microphone,
Patient Response Handswitch, Operation Manual |
| Remote Operation PC Communication
|
: |
Audiometer can also be operated
using infrared Remote Control Audiometer is
connected to PC through a serial cable. Saved
data is continuously & automatically transferred
to PC. Audiogram is automatically plotted
using data transferred. |
