Instruction/ maintenance manual of the product SR550/552 SRS Labs
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MODEL SR550/552 Vol t age Pr e- am pl i fier 1290- D Ream woo d Av enu e Sunny v a le, CA 940 89 U. S .A . Phone: (40 8) 744- 904 0, F ax: (408) 744- 904 9 Em ail: inf o@t h inkS RS . com • w ww. t hi nk S RS . com Copyr i ght © 1999, 200 1 St anf or d Res e ar c h S y s t ems , I nc .
Vo l t ag e Pre- amp l i f i er S t an fo r d R esearch Sy stem s ma nua l.
S R 550 P reamp l i f ier Sp ec i f icati on s S um m ar y Ω .
OPER AT IN G IN ST RU CT ION S - " ! : 8 6 .
DYN R E S FS Se n s it iv it y SR550 Gain 7= A E ! ! ! F ! %= " E ! .
TH E SR 55 0 W I TH O U T A L OC K - I N - " .
P A R T S L IST REF. SRS pa r t # VA L UE DES CR IPT IO N / 8 ,8 3 ' G Capacitor, Electrolytic, 50V , 20%, Rad / 8 &8 .
"&& ,8 8 , >J Resistor, Carbon Film , 1/4W, 5% A 8 8 > 9: 9- Switch, On-None-On, T oggle, Right A ngle G &8 .
MODEL SR552 Vo l t ag e Pre- amp l if i er S t an fo r d R esearch Sy stem s ma nua l.
S R 552 P reamp l i f ier Sp ec i f icati on s S um m ar y I I nput I m pedance 100 K Ω + 25 pF I nput s Si ngl e ended or dif f er ent ial (switch s elect able) Max imum I nput s 70 m V rm s for overload Damage t hr eshold: 20 Vac, 50 Vdc Nois e 1.
Noi s e Fi gur e C ont our.
OPER AT IN G IN ST RU CT ION S The SR 552 Vo ltage Pr e- Amplifier is designed to be used wi t h eit her t he SR510/530 lock- ins as wel l as t he newer DSP l ock - i ns . The SR552 reduc es t he input noise and ext ends t he f ull scale sensitivity t o 10 nV (without ex pand) .
DYN R ES F S S e ns it ivit y SR552 Gain LO W > 50 m V 10 20 db 50 mV 20 20 mV 50 < 20 m V 100 NO RM > 5 m V 10 40 db 5 mV 20 2 mV 50 < 2 m V 100 HIG H > 500 µ V1 0 60 db 500 µ V2 0 200 µ V5 0 < 200 µ V 100 When t he SR552 is connected, t he full scale sensitivit y can ext end t o 10 nV ( no expand) .
dual phase l oc k- in, us e t he R out put t o avoid phase shift s. T he SR5 52 w ithout a l oc k -in The SR 552 c an be powered with an ext er nal power supply.
P A R T S L IST REF. SRS pa r t # VA L UE DES CR IPT IO N C 1 5-00040- 509 1.0U Capacitor, Electrolytic, 50V , 20%, Rad C 2 5-00030- 520 2200U Capacitor, Electrolytic, 16V , 20%, Rad C 3 5-00030- 520 2200U Capacitor, Electrolytic, 16V , 20%, Rad C 4 5-00100- 517 2.
R 33 4-00082- 401 470K Resistor, Carbon Film , 1/4W, 5% RU 7A 4- 00032- 401 100K Resistor, Carbon Film , 1/4W, 5% RU 7B 4- 00032- 401 100K Resistor, Carbon Film , 1/4W, 5% SW1 2- 00025- 217 SPDT Switc.
An important point after buying a device SRS Labs SR550/552 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought SRS Labs SR550/552 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data SRS Labs SR550/552 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, SRS Labs SR550/552 you will learn all the available features of the product, as well as information on its operation. The information that you get SRS Labs SR550/552 will certainly help you make a decision on the purchase.
If you already are a holder of SRS Labs SR550/552, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime SRS Labs SR550/552.
However, one of the most important roles played by the user manual is to help in solving problems with SRS Labs SR550/552. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device SRS Labs SR550/552 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
