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3、inquiry operator：inquiry current operator ID。
4、delete operator：delete operator account。
5、operator revise password：
operator revise their access password。
6、director setting：after inputting director password, can change
time display
。
7、energy-saving setting：(Workable when no external power
connected)
1. enter energy-saving model（15-180s）
Set energy-saving time, default 15S.
2. Wehther keyboard locked
Set whether keyboard lockable
3. Wehther auto shut-off allowed
Set whether auto shut-off allowed.
4.auto shut-off time（3-999m）
Under this menu, set auto shut-off in regulated time。
General function operation
Operator sign-in
Function：Sign-in means the operator start to use POS terminal, and to make sure it’s
valid.
Operation steps： 1、when start, system will prompt sign-in, and input operation ID number；
2、input operator ID number（0~30）and press enter；
3、input operator password and enter；
4、G3 will upload data to central host and ask for response, it shows “sign-in success” when
succeed; or else shows “sign-in failure”;；
5、enter main interface。
Sales
Function：cardholders make online transaction by credit cards at merchants’ place。
Operation steps：1、in main menu, choose “1, sales” to enter payment interface；
2、swipe card by instruction on device screen；
3、when default is consumption, the above two steps can be replaced as a shortcut to make
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