ProComp Infiniti Encoder (SA7500)
Size (approx.) 130mm x 95mm x 37mm (5.1” x 3.7” x 1.5”)
Weight (approx.) 200g (7oz)
Power Source 4AA batteries, single use alkaline or NiMh Rechargeable
Supply Voltage 3.6V – 6.5V (fiber optic), minimum 4.0V (Compact Flash)
Battery Life, Alkaline cells 30h typical, 20h minimum
Low-battery warning 20 – 30 minutes of battery life remaining
Sensor supply voltage 7.260V ± 2mV
ADC output 14bits
Full-scale input range, DC 2.8V±1.696V
LSB magnitude 207uV
Encoder channel bandwidth (3dB) and
sample rate
DC – 512Hz @ 2048 samples/second
DC – 64Hz @ 256 samples/second
DC – 64Hz @ 200 samples/second
DC – 8Hz @ 32 samples/second
DC – 8Hz @ 20 samples/second
Anti-aliasing Filter 5th order Butterworth
Alias rejection 30dB typical
DC gain accuracy ±0.5% (initial, or after self-calibration)
DC offset ±3LSB (initial, or after self-calibration)
Overall system accuracy 5%
Offset drift, calibration temperature ±10C ±5 LSB
Encoder noise 150uV RMS, 1mV p-p typical, offset removed
N
OTE: PROCOMP INFINITI and its sensors are sensitive electronic instruments and should be handled
as such. Be especially careful to avoid both pulling on the electrode cable and getting moisture or
electrode gel on the sensor snaps. If necessary, wipe the surface with a damp cloth or use a
moistened Q-tip to remove gel from inside the sensor snaps. Wipe with a dry cloth.
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