Trigger Modes

Programming the Scanner

This section allows the user to select the trigger mode that is different from the Trigger Mode default. The operations of each trigger mode are described as below.

Low Power Mode

When this operation mode is selected, the scanner goes into idle state after scanning the bar code. You must press the trigger to wake up the scanner for operation. While the scanner is in the idle state, there is only maximum 500uA standby current for the entire reading device. It is very helpful for mobile data collection and application, which are concerned with power savings, but please keep a minimum of 120 milliseconds debounce time to stabilize the power transition.

Manual Trigger Mode

When this operation mode is selected, you must press the trigger to turn on the light source of the scanner before scanning the bar code. If you do not press the trigger, the light source will be turned off immediately. Please note that the scanner maintains standby current. You can adjust the debounce time to obtain faster triggering reading.

Alternative Mode

When this operation mode is selected, the scanner keeps the light source of the scanner turned on and disables the infrared sensor before the pre-defined auto power off duration. Because you do not have to press the trigger frequently, it is very convenient for multiple scanning. After each good read, the auto power off timer counter is reset. After the scanner turns off the light source, you must press the trigger to turn on the light source again. If there is no scanning operation in pre-defined auto power off duration, the scanner turns off the light source and enables the infrared sensor after the pre-defined auto power off duration

Presentation Mode

When this operation mode is selected, the scanner flashes the light source of the scanner without using the trigger. If the scanner detects an image similar to a bar code, the scanner forces on the light source automatically and scans. If the scanner cannot detect a bar code, it resets the light source immediately to blinking. Adjusting the Pulse Driven Duty Cycle can change the frequency of the blinking.

Auto Trigger Mode (Continued Power On)

When this operation mode is selected, the light source of the scanner is forced on for continued operation without pressing the trigger switch. This mode is convenient for high speed bar code reading.

Level Mode (Auto Power Off)

When this operation mode is selected, the scanner continues to turn on the light source of the scanner before a good read or pre-defined auto power off duration. If the scanner decodes a bar code successfully, it turns off the light source immediately. After the scanner turns off the light source, you must press the trigger to turn on the light source again. If there is no scanning operation performed during the pre-defined auto power off time, the scanner enters the idle state after the pre-defined auto power off duration.

Toggle Mode (Repeat Reading)

The toggle mode is very similar to the Alternative Mode without the pre-defined auto power off duration concern. When this operation mode is selected, you must press the trigger to turn on the light source of the scanner. The scanner keeps the light source turned on until you press the trigger again.

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