Rating Frequency; Fuse; Auxiliary Outlets; Weight And Dimensions - natus Dantec Keypoint G4 User's And Service Manual

Isolating Transformer
(9031D040X)

Rating Frequency

(9031D041X)
(Optional)

Fuse

Auxiliary Outlets

Weight and Dimensions

Operating
Storage/Transport

Data Sampling

Amplitude resolution

All input sampling is performed with a resolution of 24 bits. Digital filtering (High and low pass) and Notch filtering is performed with this
resolution to avoid clipping.
Raw input curves are stored and handled as 16 bit values with full scale as given below:
Program group
EMG, Q-EMG, Macro EMG, SF, and StimSF
All other
Example: With EP and input sensitivity = 100 µV/D the resolution is Resolution = 20 D * 100 µV/D / 65536 = 0.03 µV
Averager curves: Averaging calculations are made with 64 bit floating point numbers. This causes averaging to be precise with any practical
number of averages.
Averager Autostop: Autostop can be set to any value between 0 and 100000.

Stored sampling frequency

All hardware sampling is performed at 48 kHz. Depending on the selected test type, the signal is down sampled to a relevant sampling
frequency as described in the table below. This down sampling is performed using phase linear FIR digital filters to avoid aliasing.
Program group
EMG and Macro EMG
SF and StimSF
EMG Monitor
All other
Recording length
10-100 ms
200 ms
300 ms
Pressure: 240 hPa to 1060 hPa
50/60Hz
- Continuous Operation: max. 1000VA
- Momentary Operation: max 1500VA
9031D040x: 100/120V~
9031D041x: 200/240V~
F1 and F2 Mains
9031D040x: 110V/120V: T10A / 250V~
9031D041x: 200/240V: T6.3A / 250V~
6 Outlets: 50/60Hz
9031D040x: 100-120V~ total max.
- Continuous Operation 7.4A
- Momentary Operation 12.4A
7.4A equals 850VA, and 12.4A equals 1425VA at 115V~
9031D041x: 200-240V~ total max.
- Continuous Operation: 3.7A
- Momentary Operation: 6.2A
3.7A equals 850VA and 6.2A equals 1425VA at 230V~
Weight: 10.9kg
Dimension: 81x250x275mm (H x W x D)
Temperature: +10°C to +35°C (+50°F to +95°F)
Relative Humidity: 20% to 80% (non-condensing)
Altitude: -15m to 3,000m
Pressure: 700hPa to 1060 hPa
Temperature: -40°C to +65°C (-220°F to 149°F)
Relative Humidity: 20% to 80% (non-condensing)
Altitude: -15m to 10,600m
Pressure: 240Pa to 1060 hPa
Full scale
Input sensitivity * 12 divisions
Input sensitivity * 20 divisions
Sampling frequency
24 kHz
48 kHz (Resolution for calculations better than 1 MHz)
User specified up to 48 kHz.
48 kHz
24 kHz
12 kHz
60