SRS Labs Lock-In Amplifier, SR530 manual Demodulator, Outputs & Interfaces

Models: SR530 Lock-In Amplifier

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Acquisition Time

25 Sec at 1 Hz

 

 

6 Sec at 10 Hz

 

 

2 Sec at 10 kHz

 

Slew Rate

1 decade per 10 S at 1 kHz

 

Phase Control

90° shifts

 

 

 

Fine shifts in 0.025° steps

 

Phase Noise

0.01° rms at 1 kHz, 100 msec, 12 dB TC

Phase Drift

0.1°/°C

 

 

 

Phase Error

Less than 1° above 10Hz

 

Orthogonality

90° ± 1°

 

 

Demodulator

 

 

 

 

Stability

5 ppm/°C on LOW dynamic reserve

 

50 ppm/°C on NORM dynamic reserve

 

500 ppm/°C on HIGH dynamic reserve

Time Constants

Pre:

1msec to 100 sec (6 dB/Octave)

 

Post:

1sec, 0.1 sec, none (6 dB/Octave) or none

Offset

Up to 1X full scale (10X on expand)

 

Both channels may be offset

 

Harmonic Rej

-55 dB (bandpass filter in)

 

Outputs & Interfaces

 

 

 

 

Channel 1 Outputs

X (RcosØ), X Offset, R (magnitude), R Offset, X Noise, X5 (external D/A)

Channel 2 Outputs

Y (RsinØ), Y Offset, Ø (phase shift of signal), Y Noise, X6 (external D/A)

Output Meters

2% Precision mirrored analog meter

Output LCD's

Four digit auto-ranging LCD display shows same values as the analog meters

Output BNC's

±10 V output corresponds to full scale input, <1Ω output impedance

X Output

X (RcosØ), ±10 V full scale, < 1 Ω

output impedance

Y Output

Y (RsinØ), ±10 V full scale, < 1 Ω

output impedance

Reference LCD

Four digit LCD display for reference phase shift or frequency

RS232

Interface controls all functions. Baud rates from 300 to 19.2 K

GPIB

Interface controls all functions. ( IEEE-488 Std )

A/D

4 BNC inputs with 13 bit resolution (±10.24 V)

D/A

2 BNC outputs with 13 bit resolution (±10.24 V)

Ratio

Ratio output equals 10X Channel 1 output divided by the Denominator input.

Internal Oscillator

Range:

 

1 Hz to 100 kHz, 1% accuracy

 

Stability:

150 ppm/°C

 

 

Distortion:

2% THD

 

Amplitude: 1% accuracy, 500 ppm/°C stability

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SRS Labs Lock-In Amplifier, SR530 manual Demodulator, Outputs & Interfaces