LT0702 digital clinic diagnostic audiometer
Several yards electric measuring devices are described by sound
LT0702 digital electronic detector is more functional modules of computerized listening test equipment, mainly based on hearing test and the occasion required by the acoustics, digital technology, combined with the advanced CeTing occasion and technical development of microcomputer auditory assessment tools.
LT0702 digital electronic detector test, suitable for pure hospital ENT (ear-nose-throat) diagnosis and occasion, and clinical, family and determination of liquidity hearing.
The test TDH39 through air guiding headset (AC). Built-in test signal is pure, pulse, and broadband noise coronas.
0702 digital electronic detector LT - provides 11 gas (AC) test frequency, the frequency range from 125Hz to 8KHz, listening to 110dBHL from 0dBHL level.
All testing data automatically converts as pure and listen to be calculated value of PTA patients.
Simple operation of the system, the bright LED, LCD display against real speaker, frequency and each other information channels. Using advanced microprocessor technology, make use of 0702 LT - more convenient and more reliable.
Hearing of structure design of automatic test procedures, convenient in maintenance is very convenient troubleshooting and annual calibration.
PC computer interface
USB interface
The operating system
WindowXP
The driver
WindowXP cabin
Use are introduced
Instrument unpacking
You buy LT0702 digital electronic detector has carefully before shipment inspection and packing, please receive instrument prototype carefully check whether have damage packing. If you find any signs of damage from lift-off, please immediately notify freight units.
Please be careful, open and check outer-package of plastic packaging and whether there are any damage. If there is any mechanical damage, please immediately with freight units, ensure the rights and interests of your negotiations. Keep all original packaging, with more convenient for responsibility investigation. After investigation, please inform dealers.
Keep all original packaging materials and transportation, so need calibration and maintenance condition, can correctly packaging, to avoid damage in transit instrument.
All parts are 0702 - and LT in digital electronic detector packaging, please check the following parts are complete, intact. If there is a lack of and damaged, please immediately notify the dealer.
Standard accessories:
n 1 TDH39 gas guide headphones
n 1 patient response
n 1 power plugs
n one USB cable
n 1 cd-rom
n 1 of this manual
Electroacoustic detector calibration:
Electroacoustic detector, with the same serial number guide headset (for example: CS - 00001). Because they had been specially instrument calibration, so don't allow the use of other headphones etc. If one of the instrument must be again.
Without the use of] calibration can result in errors detector test results.
Before using the 0702 -LT
Before use, to the equipment from the box, take out TDH39 (gas) headphones or so ear plugs device designated by socket, and then insert patients with USB cable, reactor after another end insert USB line computer USB port.
0702 - in LT quiet room, to make use of digital electronic detector from outside noise. In noisy environment in order to use headphones, can use of voice. Electronic medical instrument issued a strong magnetic field, it will affect the function, thus acoustic detector 0702 digital electronic detector LT- around the use of such equipment is strictly prohibited.
The testing room must be kept in normal temperature, usually for 15 ° C to 35 ° C, just before the first test on 2 minutes before use. Preheat
PC computer interface: USB
Operating system: WindowXP
Driver:WindowXP own
Technical parameters
Output:Air conduction/bone conduction
Masking; NB/WN/SN/PN
Maximun HL air conduction/bone conductin: 110DB/70DB
Noise/square wave
Attenuation step length: IdB+5dB
External Printer :Please purchase by yourself
Sound field calibration:Internal/external voice/ tone
Earphone:Medical headset
Monitor : Internal/external
Structure:Metal case
Frequency and maximum output intensity
Frequency | AC | BC |
125 | 75 | |
250 | 95 | 70 |
500 | 110 | 70 |
750 | 110 | 70 |
1000 | 110 | 70 |
1500 | 110 | 70 |
2000 | 110 | 70 |
3000 | 110 | 70 |
4000 | 110 | 70 |
6000 | 105 | 70 |
8000 | 95 | 65 |

