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Model SR554

Transformer Preamplifier

1290-D Reamwood Avenue

Sunnyvale, California 94089

Phone: (408) 744-9040  •  Fax: (408) 744-9049

email: [email protected]  •  www.thinkSRS.com

Copyright © 1999 by SRS, Inc.

All Rights Reserved.

Revision 1.2 (10/2001)

Summary of Contents for SR554

Page 1: ...nsformer Preamplifier 1290 D Reamwood Avenue Sunnyvale California 94089 Phone 408 744 9040 Fax 408 744 9049 email info thinkSRS com www thinkSRS com Copyright 1999 by SRS Inc All Rights Reserved Revis...

Page 2: ......

Page 3: ...er and Buffer 500 nominal Transformer only 100 nominal See Amplitude Frequency Response Curve pg 6 Gain Accuracy 5 with fixed source resistance Gain Stability 100 ppm C Outputs Single ended or differe...

Page 4: ...2...

Page 5: ...If a longer cable is required any standard 9 pin cable will suffice since all connections are straight through When the lock in power is on the POWER indicator on the SR554 will light The SR554 output...

Page 6: ...lock in amplifier s overload indicator The SR554 s overload indicator is only functional when the unit is in the buffered mode If the unit is operated in the bypassed mode and power is applied the ov...

Page 7: ...l become 500 k If the instrument that the SR554 is connected to has an input impedance of 1 M 1 3 of the signal is lost Any significant cable capacitance will create a low pass filter with this output...

Page 8: ...e optimum operating frequency can be determined from this graph USING THE SR554 WITH SRS LOCK INS The SR554 is not sensed through the 9 pin cable by SRS lock in amplifiers Therefore the lock in does N...

Page 9: ...the lock in amplifier s input by 40 dB 100x over most frequencies DC to 500 MHz To minimize radiated noise a thick low impedance wire should be connected from the ground plug to a quiet ground point I...

Page 10: ...8...

Page 11: ...is places the lock in in a known state The power LED of the SR554 should light 3 Set the input to DC coupled grounded shield Set the time constant to 300 ms 1 s for 1 Hz measurement 12 dB oct filter a...

Page 12: ...10...

Page 13: ...3 120 BNC Connector BNC J 104 1 00003 120 BNC Connector BNC J 104 1 00014 160 9 PIN D Connector D Sub Right Angle PC Female J 109 1 00229 102 BINDING Binding Post L 101 6 00174 630 6611 TYPE 43 Ferrit...

Page 14: ...Screw Flathead Phillips Z 0 0 00209 021 4 40X3 8PP Screw Panhead Phillips Z 0 0 00221 000 SR440FOOT Hardware Misc Z 0 0 00263 052 3 22 Wire 22 UL1007 Z 0 0 00266 052 8 1 2 22 BLK Wire 22 UL1007 Z 0 0...

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