Neurobit Optima firmware

Ver. 1.2.3

• Removed 2 bugs that sometimes interfere with communication.

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Ver. 1.2

• Improved system reliability when batteries are worn out.

• Longer time from first signal of worn-out batteries to automatic turning off.

• More stable signaling of battery state.

• Better synchronization of battery state indicator on a computer.

Ver. 1.1.2

• Corrected skin temperature mesaurements.

• Reduced fluctuations of impedance test results.

• Corrected "No signal" warning for tests of electrode-skin impedances.
  "No signal" state ("Signal" diode shines orange) was indicated earlier for impedances below 5 kOhm, what could be misleading, because such impedances are attainable with good skin preparation. Now lack of signal is indicated below 0.62 kOhm, what may mean electrode short circuit.

• Removed buzz, which was transiently audible in some cases at the beginning of "No signal" warning.

Ver. 1.0.1

• Impedance test correction.

  Results of electrode-skin impedance tests have been corrected for multi-channel measurements with "-" inputs connected to common reference electrode (earlier readings was much too high in described case).

  NOTES:

  1. The change is effective with Neurobit Driver ver. 3.0.6 or higher running on a computer (in software application supporting Optima device).
  2. The prerequisite of correct readings of above mentioned impedances is suitable setting of Common reference fields on individual channel tabs for channels set to "Voltage" function.

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