Nellcor OxiMax SRC-MAX, Technical Manual

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Specifications
SRC-MAX 39
Output 2: CMOS Compatible Output
Timing
C-Lock timing is synchronous with each optical pulse.
C-Lock synchronization signals start to 45-55 msec prior to
the optical pulse.
C-Lock synchronization signal is 50 msec to 100 msec in
width.
Simulated Waveform
Rise Time = 95 msec to 105 msec for all heart rates.
Fall Time = 190 msec to 210 msec for 200 BPM.
Fall Time = 855 msec to 945 msec for 60 BPM.
Power
2 AA Alkaline Batteries
Minimum of 45 hours of continuous operation with new
batteries.
Typical power consumption: 80 milliwatts
Physical Characteristics
Overall Dimensions: 7 inches x 3.52 inches x 1.45 inches
Weight: .45 pounds