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