Instructions
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When the USB cable is connected and data exchange is possible, the display will show the USB symbol.
When no measurement is active, the display shows "IDLE". This corresponds to the operating mode "On".
The selection of the operating mode "Auto" or "On" is possible here, but will only become active after the
USB connection has been disconnected.
The USB symbol will not appear in spite of a connection being present when the device is off or the charge
condition of the rechargeable battery is too low.
The charge display is always visible when the USB connection is present.
e) Signal Encoders
The "Gamma Check Pro" has an acoustic alarm. It serves to signal exceeded thresholds, pulses (ticks), to conrm
when a button is pushed and to report the start or end of a measurement.
The integrated signal encoder can be switched on and off in the menu "Settings". The signal encoder is deactivated
at delivery.
When the signal encoder is switched off, no pulses or pushes of a button will be acoustically conrmed.
Alarms are, however, always output for reasons of safety, and cannot be switched off!
When the signal encoder has been switched on, the device will emit a brief "tick" sound at every count impulse. It
will also conrm every push of a button. Activation of this function will increase the power intake, while the operating
time reduces.
Signal output
Switching on the device Short sound
Switching off the device 2x short sound
Push of a button Short sound
Rechargeable battery weak Long sound, repeat every 5 minutes, also in the deactivated condition
Start measurement 2x long sound
Cancel measurement Sound for 1 second
Measurement ended Sound for 1 second
Pulse recognised Very short "tick" sound
Limit exceeded 3x short sound, is repeated 3x (repetition every 15 minutes, until conrmation
by any key)