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Technical Specifications
This chapter contains the technical specifications of the Dantec Keypoint G4 system, also available via part number 9031M1257.
Keypoint G4 Specifications
Amplifiers
Input Impedance
Balanced: >200MOhm
Common Mode: >1,000MOhm/25pF
Noise Level typical (RMS)
0.4µV (2Hz-10kHz) shorted Input
Isolation Mode Rejection
>160dB
Common Mode Rejection Ratio
>124dB (EMG Amplifier)
>112dB (EP Headbox)
Sensitivity
0.5µV/D – 20mV/D (19 Steps)
Display Sensitivity
0.05µV/D – 20mV/D (23 Steps)
Filters
High Pass 0.01Hz - 3kHz (16 steps)
Low Pass 20Hz – 13kHz (12 Steps)
Connection Types
1.5mm Touch Proof / DIN socket
Calibration Signal
With supplied test cable
ADC Resolution
24 Bits (See section
Sampling Rate
48kHz per amplifier (See section
Averager
Max. Averager per Channel
Min. 100,000 Sweeps/Averager
Points per Channel
Program dependent
Up to 4800
Acquisition
Sweep Speeds
Program dependent
0.1ms/d - 16s/d (33 steps)
Delay Line
NC+EP: -2,000ms –> +500ms
EMG Epoch Recording
Max. 15 minutes per Epoch
Gain Accuracy
± 3%
Time Accuracy
± 2µs x 0.5/Sample Frequency (See section
Display
Resolution
1680 x 1050 - at least
Stimulation
Repetition Rates
0.1 - 200Hz
Size & Weight
Weight (typical system)
64kg
Weight
Dimensions (HxWxD)
1136 x 610 x 630mm
Impedance Test
Test signal
Sine Wave, 220Hz
Current
≤ 0.1µA
Electrical Stimulator
Max. Output
100mA Software controllable
