eLockIn204/2 Specifications
GENERAL PARAMETER

SPECTRUM ACQUISITION SPECIFICATION

Lockin Amplifier
Functions

Displayedchannels
Frequency range
Modes

Spectrum Acquisition

Remote Control
Special Features
Display

Oscilloscope
Ethernet
Dual Harmonic
Dual Input
Synchron Mode up to 1 MHz
Color TFT - 16.51 cm (6.5“)GeneralAcquisition
1st Lockin
Auxiliary IN
Internal data
Auxiliary OUT

LOCKIN AMPLIFIER SPECIFICATION

GeneralSignalInput

Reference
OutputReference
Input

Channels

Number of Phases

4 simultaneously
acquired phases

Dynamic Reservemax. 135 dB

Input Noise< 5 nVrms/Hz0.5 @ 100kHz

Time Constants

0.1 ms ... 1 ks

Full ScaleSensitivity

10 nV ... 10 V
in 1-2-5 sequence

Phase Resolution

0.0001°Type

single-ended (A)dual input (A&B)
differential (A-B)

Connector

BNCCoupling

DC or AC (f -3dB = 2 Hz)

Damage Threshold+/- 12 V (in ON state)+/- 2 V (in OFF state)

Full Scale Input
RangesHigh dynamic: ± 3.6 Vrms
Normal: ± 360 mVrms
Low noise: ± 35 mVrms

Time Constants

0.1 ms to 1 ks
in1-2-5 steps

Syncron filter

1 to 200 periods in 1-2-5 steps

Filter Characteristic

Butterworth

Gain Deviations< 1 % between Dynamic Ranges

Gain accuracy @20°C± ( 0.0004 % of range+ 0.5 % measurement)

Impedance~ 1 MΩ || 10 pF

DataInput Noiseτ = 1 ms50 Ω@ 100 kHzhigh dynamic: < 300 nVrms/Hz0.5
normal dynamic: < 30 nVrms/Hz0.5
low noise: 5 nVrms/Hz0.5

Number of
Available Channels
Input Range

Internal Oscillator

10 mHz .. > 1 MHz

Frequency
Resolution

3 mHz

Frequency
Accuracy+/- 50 ppm from 0 °C to 70 °C

Reference Output
Voltage< 0.1 mVrms ... 7 Vrms

Output Noise@ Uout = 1 mVrms, τ = 1 ms, 100 kHz< 230 nVrms/Hz0.5

Frequency

0.1 Hz .. 1 MHzAmplitude

TTL or sine signal > 100 mVrms

PLL Locking Time< (100 ms+ 10 Cycle)

Phase Error< 4 deg @ f = 1 kHz

Impedance

TTL: 1 MΩ
small sine signals: 1 MΩ
large sine signals: 1 kΩ

2nd LockinMathematical
Measurement
StorageSpecialFeatures

4
0.1 Hz to 2 MHz
Logarithmic, linear
Single spectra
Integrated spectra
Continuous spectra
RA, PhiA, XA, YA
AD1 to AD8
f, Uac, In
DA5 to DA8RB, PhiB, XB, YB for “A&B” input
Rn, Phin, Xn, Yn for “A” & “A-B” input
Noise
Single point positions & Q-factors
Reference channel

OSCILLOSCOPE
Data Channels
Sampling rate
Time scaling
1st Lockin
Auxiliary IN
Internal data
Auxiliary OUT

GeneralChannels

2nd LockinMathematical
Special Features

439.062 kHz
20 µs to 5 s per division
RA, PhiA, XA, YA
AD1 to AD8f, Uac, In
DA5 to DA8RB, PhiB, XB, YB for “A&B” input
Rn, Phin, Xn, Yn for “A” & “A-B” input
NoiseRing buffer

OUTPUTS & AUXILIARY CHANNELS
Number of
Available Channels
Output Range
Sampling Rate

Outputs

Auxiliary
A/D Input

4± 10 V156 kHz
User-selectable out of all channels(see oscilloscope)
8± 10 V
39.062 kHz
24 BitSampling Rate
Resolution
Number of
Available Channels

Auxiliary
D/A Output

4Output Range± 10 V

Sampling Rate

156 kHz

Resolution

24 BitDATA STORAGE
Internal Hard drive
External drive
Editing function
Storage type

32 MByte
USB-Stick
Clear data, Copy data to USB
ASCII data, numbered

GENERAL
Power supply
Power cord frequency
Dimensions
WeightWarranty
IncludesOptional

110/230 V
50/60 Hz0.16 (H) x 0.84 (W) x 0.34 (D) m(handle in backward position)
6 kg
2 years
Manual & Certificate
USB stick, SMB-BNC cables
Low noise BNC cablepower cord
I/U-converters

1 MHz Digital Lockin Amplifier / Sine Generator

Features
Real 4-channel lockin amplifier
Dual harmonic & dual input
5 nV/Hz0.5 input noise @ 100 kHz
14-bit 40 Mega samples per second
graphical display vs. time and frequency
14-bit sine wave generation from 0.1 mVrms to 7 Vrms

Synchronous filtering over full frequency range
0.01 Hz to 1 MHz, 135 dB dynamic reserve
spectra acquisition up to 2 MHzdata width: 64/96-bit, results: float
remote control via TCP/IP, internal web-server
free DLL, windows driver and remote program