HIMS Inc.
BookSense XT – User Manual
2) “250+10%”
(1) Press the number 2, 5, and 0.
(2) Press the Right button to input an addition.
(3) Press the number 1 and 0.
(4) Press the Down button for more than 2 seconds to input a %.
(5) And press the Menu button.
(6) Then you will get the result of “275.” Thus it is same as 250+250*0.1.
3) “250*10%”
(1) Press the number 2, 5 and 0.
(2) Press the Up button to input a multiplication.
(3) Press the number 1 and 0.
(4) Press the Down button for more than 2 seconds to input a %.
(5) Press the Menu button.
(6) Then you will get the result of “25.” Thus it is same as 250*0.1.
11.3 Using the help mode of Calculator
While executing the calculator, help Mode gives you the instruction about four fundamental
arithmetic operations when you press each button.
Help Mode is operated easily by pressing MENU button for more than 2 seconds. Help Mode
is not an actual operating function. When you need to exit the help mode, you need to press
MENU button one more time for more than 2 seconds.
12. Troubleshooting Guide
If you are having any trouble with the BookSense XT, please try the following suggestions to
address your problem:
12.1 The BookSense XT will not turn on
1) Check to make sure that the battery has been inserted properly into its compartment.
2) If the battery is inserted properly, connect the AC adapter, and plug the AC adapter into
an electrical outlet. The battery may need to be charged.
3) Check the location of the Hold switch. If this switch is on lock, the BookSense XT will not
be able to be turned on.
92
