SRS Labs SR530, Lock-In Amplifier manual Front Panel Summary

Front Panel Summary

Signal Inputs	Single Ended (A), True Differential (A-B), or Current (I)
Signal Filters	Bandpass:		Q-of-5 Auto-tracking filter (In or Out)
	Line Notch:		Q-of-10 Notch Filter at line frequency (In or Out)
	2XLine Notch: Q-of-10 Notch Filter at twice line frequency (In or Out)
Sensitivity	Full scale sensitivity from 100 nV to 500 mV RMS for voltage inputs
	or from 100 fA to 500 nA RMS for current inputs.
Dynamic Reserve	Select	Dynamic Reserve		Stability	Sensitivity Ranges
	LOW		20 dB	5 ppm	1 µ V to 500 mV
	NORM		40 dB	50 ppm	100 nV to 50 mV
	HIGH		60 dB	500 ppm	100 nV to 5 mV
Status Indicators	OVLD	Signal Overload
	UNLK	PLL is not locked to the reference input
	ERR	Illegal or Unrecognized command
	ACT	RS232 or GPIB interface Activity
	REM	Remote mode: front panel has been locked-out
Display Select	Channel 1		Channel 2
	X (RcosØ)		Y (RsinØ)
	X Offset		Y Offset
	R (Magnitude) Ø (Phase)
	R Offset		Ø (no offset)
	X Noise		Y Noise
	X5 (D/A)		X6 (D/A)
Analog Meters	Displays Channel 1 and 2 Outputs as a fraction of full scale
Output LCD's	Displays the Channel 1 and 2 Outputs in absolute units
Output BNC's	Channel 1 and 2 Outputs follow Analog Meters, ± 10 V for ± full scale
Expand	Multiplies the Channel 1 or 2 Analog Meter and Output voltage by a factor X1 or X10.
REL	Set the Channel 1 or 2 Offset to null the output: subsequent readings are relative
	readings. REL with phase display performs auto-phasing. REL with X5, X6 display
	zeroes the D/A outputs.
Offset	Enables or Disables Offset, and allows any offset (up to full scale) to be entered. X, Y,
	and R may be offset and X5, X6 may be adjusted. Phase is offset using the reference
	phase shift.
X BNC	X (RcosØ) output, ± 10V full scale
Y BNC	Y (RsinØ) output, ± 10V full scale
Reference Input	1 MΩ Input, 0.5 Hz to 100 KHz, 100 mV minimum
Reference Trigger	Trigger on rising edge, zero crossing, or falling edge
f/2f Mode	PLL can lock to either X1 or X2 of the reference input frequency

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