3.2
TRICOR Systems Inc.
3.1
Turning On The Model 225 (Cont'd)
•
Waiting for temperature to stabilize
•
Menu options selected
•
Chocolate testing completed, remove sample
Chocolate testing can not be performed while the power indicator is flashing.
3.2
Display Contrast
The LCD contrast is a user adjustable feature. The setting is stored in program
memory and recalled each time the unit is turned on. TRICOR has preset the
contrast for optimal performance.
However, the user can change this setting. The adjustment is a menu option.
Because of this, it is possible for the user to set the contrast so that nothing
appears on the LCD. It would then be impossible to navigate through the menu
to readjust the contrast. To provide a method to overcome this complication,
there is a power up procedure to regain control.
If the display comes up without any characters visible, turn the Model 225 off and
allow 10 seconds to power it down. Press and hold the
Scroll Up
and
Scroll
Down
buttons. Turn on the Model 225. When you can again see characters
displayed, release the buttons. The display setting may not be optimal. To
improve the contrast use the contrast menu adjust feature.
3.3
Initialization And Testing
The Model 225 starts operation by performing self tests on the unit hardware
and software. During this test the message shown below is displayed. The
bottom line of text is a continuously scrolling progress bar incremented after
each test.
Initializing System ...
