SALUKI SE2031 Lock-In Amplifier (1 mHz to 3 MHz, 1 nV to 1 V)

1. Signal Channel

Voltage Input Mode: Single-ended or Differential

Full-scale Sensitivity:

1 nV to 1V in a 1-2-5 sequence

1 fA to 1 µA

Current Input: 106 or 108 V/A

Impedance:

Voltage: 10 MΩ//25 pF, AC or DC coupled

Current: 1 kΩ to virtual ground

C.M.R.R: > 100 dB to 10 kHz, decreasing by 6 dB/oct

Dynamic Reserve: > 120 dB

Gain Accuracy: 0.2% typ, 1% max

Voltage Noise: 3 nV/√Hz at 997 Hz

Current Noise:

7 fA/√Hz at 97 Hz

10 fA/√Hz at 997 Hz

2. Reference Channel

Input:

Frequency range: 1 mHz to 3 MHz

Reference input: TTL or Sine

Input impedance: 1 MΩ//25 pF

Phase:

Resolution: 1 µdeg

Absolute phase error: < 1 deg

Relative phase error: < 1 mdeg

Orthogonality: 90° ± 0.001°

Phase noise: (Internal ref.) Synthesized, <0.0001°rms at 1 kHz; (External ref.) 0.005°rms at 1 kHz (100 ms time constant, 12 dB/oct)

Drift: <0.01°/℃ below 100 kHz, <0.1°/℃ above 100 kHz

Harmonic Detection: 2F, 3F, …nF to 3 MHz (n<32767)

Acquisition Time:

Internal ref.: instantaneous acquisition

External ref.: (2 cycles + 5 ms) or 40 ms, whichever is larger

3. Demodulator

Stability:

Digital output: no zero drift on all setting

Display: no zero drift on all setting

Analog output: <5 ppm/℃ for all dynamic reserve settings

Harmonic Rejection: -90 dB

Time Constant:

10 µs ~ 3 ks (<200 Hz)

10 µs ~ 30 s (>200 Hz)

(6, 12, 18, 24 dB/oct rolloff)

4. Internal Oscillator

Frequency

Range: 1 mHz to 102 kHz

Accuracy: 2 ppm + 10 µHz

Resolution: 1 mHz

Distortion:

-80 dBc (f < 10 kHz)

-70 dBc (f > 10 kHz)

Amplitude: 0.001 to 10 Vrms

Accuracy: 1%

Stability: 50 ppm/℃

Output: Sine output on rear panel, and TTL sync output on rear panel

5. Interface: USB2.0 and RS-232 interface

6. Inputs & Outputs: CH1 and CH2 Outputs

Function: output X, Y, R, θ

Output voltage: ±10 V full scale, 30 mA max output current

7. Display

Screen: 5.6 inch, 640×480 TFT

Screen Format: Single or dual display

Display Types: Large numeric readout, bar graph, polar plot and strip chart

8. General

Power Requirement:

Voltage: 220 – 240 VAC, 100 – 120 VAC (optional)

Frequency: 50/60 Hz

Power: 40 W

Dimension:

473 (W) × 160 (H) × 490 (D) mm (with feet)

473 (W) × 147 (H) × 490 (D) mm (without feet)

Weight: 12 kg

Datasheet

Manual