| No | Item | Parameter''s demand |
| 1 | Channel''s number, | Four—channel amplifier has the same function adjustable parameter control and part technology |
| 2 | Inputting mode. | Tow sends balance inputs differentially |
| 3 | Inputting resistance | 100M |
| 4 | Gain transverter | 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000, 5000 ,10000, 20000, 50000 |
| 5 | Gain accuracy | 0.5% (FS) ( an hour''s preliminary heating later) |
| 6 | Gain accuracy | 0.05%(FS) (an hour''s preliminary heating later) |
| 7 | Gain stability | 0.1 percent of full degree |
| 8 | Linear degree | <1% |
| 9 | Distortion factor | DC—30KHZC+0.5db—3db |
| 10 | Nose | <3 MVRMS( Inputting short circuit, at maximum gain 30k wide band, it will convert to in putting end) <2uvRMS(Inputting short circuit, at maximum gain 30k wide band, it will convert to outputting end ) |
| 11 | Common mode''s restrain | >100db |
| 12 | Time drift | <3MV/H (Inputting short circuit, at maximum gain, it will convert to inputting end) |
| 13 | Temperature drift | <3mv/h(Inputting short circuit, at maximum gain, it will convert to outputting end ) |
| 14 | Upper limit frequency | When voltage is DC—30kHz, its transverter is 10, you also can input upper limit frequency freely |
| 15 | Wave filter character | 9-stage Besil low-pass wave filter |
| 16 | Time constant | DC 5s,2s,1s,0.2s,0.002s, 0.001s, 0.005s, adds up to 9 transverters altogether, you can switch freely |
| 17 | 50 Hz wave frame | Have but attenuate 32 db |
| 18 | Datum tracing | Have and overcome datum drift |
| 19 | Monitor function | Monitor four channels freely |
| 20 | Note drop function | Four channel all can note including drops, drop velocity |
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