1600HM

Test the Frequency Response (20Hz ~ 20 KHz), Sensitivity, ACZ, DCR, Harmonic Distortion, Polarity as well as the Balance testing of both the left and right earphones of the headphone respectively.

Test the Frequency Response (100Hz ~ 8 KHz) ,Sensitivity, DC Current of ECM, Harmonic Distortion of the Microphone, also provide the DCV and load resistor required for ECM testing.

(3) Automatic switching the left earphone, right earphone and the microphone of the headset for auto testing and auto judging Go/ No-Go.

(4) All the testing items indicated on items 4 and 5 can be tested individually(R&D or QA use), or all the items (or selected items) can be tested in automatic sequential form (Suitable in production line /QC use).

*The fundamental combination of Type* 1600HM
Item	Model No.	Description	Usage
1.	160 A	Electro acoustic Analyzer	Mainframe. To control and process the input、output signal.
2.	Monitor & Keyboard	High Resolution Color Display Monitor & Keyboard	Display the tested results & data and key in data. User may buy these two items at his local market, since price is cheaper and can save freight charge and import tax.
3.	181	Headset Testing Controller	Combines with 160A mainframe, automatic switching the left and right earphone and microphone, to test the various electrical characteristics of the earphone, microphone etc.
4.	142 ES	Artificial Ear ( 142ES = IEC - 318 )	Receives the sound generated from the headphone. 142ES is more suitable than Model-142EA-S for testing the headphone, since its frequency range is wider.
5.	142FS	Headset Test Fixture	To position the headset. Placed with two sets of 142ES artificial ear. The relative position of the 142EA and 140M comply with the ITU international standard.
6.	140M	Artificial Mouse	Generated a flat and stable, precise sound field, for testing the “Microphone”
7.	X-Y Mouse	Mouse	Replace the upward, downward, leftward, rightward and enter keys on the keyboard.
8.	HP Printer ( Option )	Printer (All the HP DeskJet or HP Laser Printers that are supported by DOS can all be used.)	Print out the tested results & data.

Note 1: 2 sets of Model-142ES and Model-142FS are inseparable; user should buy all at one time.

Note 2: Type 1600HS = Items 1~5 of the above table, which can test only the headphone portion of the headset , and can’t

Note 3: Type 1600HM = Items 1~6 of the above table, which can test both the headphone and microphone portion of the

The fundamental specification of Type 1600HM is the same as Type 1600H, please refer to Type 1600H

Item	Type	Test objects			Composition
Item	Type	Left earphone	Right earphone	Microphone	Composition
1	1600HS	★	★		160A + 181 + 142ES (2 sets) + 142FS
2	1600HM	★	★	★	160A + 181 + 142ES (2 sets) + 142FS + 140M

Note:2 sets of Model-142ES and Model-142FS are inseparable; user should buy all items at one time.

Type 1600HM or Type 1600HS has the entire testing items possessed by Type 1600H, it also has left and right earphone balance testing (Can set 7 freq. points for testing) and the microphone char. testing, fully automatic switching, automatic testing and auto judging Go / No-Go：

Test items of the Headset		Type 1600HS	Type 1600HM
Left earphone or right earphone	Frequency Response (20Hz ~ 20KHz) & Sensitivity	◎	◎
	Polarity Test	◎	◎
	AC Impedance Test ( 2 ~ 1000 Ohms )	◎	◎
	DCR Test ( 2 ~ 1000 Ohms )	◎	◎
	Distortion Test ( 0.5% ~ 20% @ 0.1 ~ 10mW Adjustable )	◎	◎
	Balance Test (Can set 7 freq. points)	◎	◎
Mic. testing	Frequency Response (100Hz ~ 8KHz) & Sensitivity	╳	◎
	ECM Current Test ( 0mA ~ 3mA )	╳	◎
	Distortion Test ( 1KHz ; 0.5% ~ 20% @ MRP 100dBSPL )	╳	◎
	Supply voltage of ECM︰+0.9V ~ +9V adjustable
	Loading resistor of ECM︰180 Ohms ~ 9 KOhms; adjustable