Medlab medizinische Diagnosegeräte GmbH EG01010 User Manual
Version 1.06
6
Physical Units of Transmitted Data
Scaling of ECGs is normally done in the unit "cm/mV" for the Y-axis and in "mm/sec" for the X-axis.
The respiration rate is transmitted in „rpm“ (respirations per minute).
The pulse rate is transmitted in „bpm“ (beats per minute).
The transmission speed for the wave is indicated in Hz (sec
-1
).
The ECG amplitudes are normally indicated in „cm/mV“. Since this is depending directly on the resolution
of the screen the user is working with, the transmitted samples are not directly scaled in this unit, but fall
into the range of 0-0xF7 (8 Bit samples, 0xF8 to 0xFF reserved for commands). It is within the responsi-
bility of the user to scale the transmitted samples in a way that the waves displayed onto his screen fit to
the usual scales used in medicine, 0.5, 1, 2 and 4 cm/mV. The amplification of the module in the different
amplification stages is:
Stage 1 Stage 2 Stage 3
1mv = 32 1mV = 64 1mV = 128
Normal values for the trace speed are 12.5 mm/sec, 25 mm/sec and 50 mm/sec.
Connector Respiration Board
Connector Respiration Board
Description of connectors and areas of the module (1:1)
Description of the Module and Connectors
To Next Page
Loading...