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Name of operating software:  1600NHM        

Items of combination: 160N+181C+142ES (2 sets) +142FS +140M   

Test object: Headset with microphone

Explanation: (a) Has analysis and statistics (Cp, Ca, Cpk) function

(b) Consists of LAN function, tested data can be uploaded to the Central Monitoring Unit

(c) PASS/FAIL digital signal output, can be linked with the automation installed by the customer

(d) Functions:

( I ) Headphone characteristics :

Frequency Response : 

20Hz ~ 20KHz by using Model-142ES

Sensitivity

AC Impedance Test  ( 2 ~ 1000 Ohms )

DCR Test  (  2 ~ 1000 Ohms )

Polarity Test

Fo Test

PAP Test  (Peak Acoustic Pressure Test)

Harmonic distortion test ( 0.1% ~ 20%)  or Buzz and rattle test.

Distortion Curve

Balance test

( II ) Microphone characteristics :

Frequency Response (100Hz ~ 8KHz) 

Sensitivity  

ECM DC current

Harmonic distortion test ( 0.1% ~ 20%)

Supply power voltage to ECM: +0.9V ~ +9V adjustable

Loading resistor to ECM: 180 Ohms ~ 9 K Ohms, adjustable

Model-160N	Model-181C	Model-142ES *2  +  140M  +  142FS