Model 302
24-bit USB Data
Acquisition System
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System Calibration

To confirm proper operation, select channel 7 and look for a voltage in the general vicinity of zero. The offset portion of the system calibration removes errors caused by the input signal conditioning circuitry, as well as offset errors in the A/D converter itself. Confirm that the reading is close to zero volts. Channel 6 should read close to +5 volts after a system calibration. The full-scale calibration removes gain and signal conditioning errors.

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