4.5
TRICOR Systems Inc.
4.2
Preferences (Cont'd)
These are maximum runs stored depending on the run time of the sample (an
optional feature). Longer runs use more memory and allow fewer results to be
stored in the fixed memory size. Your usage may be somewhat less.
The remaining features on this tab are described below.
4.2.1 Line Frequency
The hardware in the Model 225 can optimize the data collection process to
eliminate noise generated by AC electric and magnetic fields in your facility. To
accomplish this noise reduction, the unit must know the power line frequency in
use. In the Western hemisphere, 60 Hz is common. Europe and Asia, with the
exception of Japan use 50 Hz.
To obtain the best performance, select the frequency in use at your location.
Click the appropriate radio button in the
Line Frequency
group.
4.2.2 Change Password
A password may be applied to the Model 225 to prevent users from changing
settings by using the menu mode of the unit. Entry into the menu mode requires
entry of an 8-digit password made up of the numbers 1 to 4 (the numbers on the
255 buttons). A correct and speedy entry of this 8-digit value is required when
the
Select
button on the 225 is pressed. Entering the incorrect value or delaying
too long will result in the unit returning to the Ready To Test mode. Once in the
menu mode, the operator can return to the Ready To Test mode and re-enter the
menu if 60 seconds does not expire.
The password is by no means a major security feature. It only prevents casual
users for modifying the setting of the Model 225 through the menu. It also
prevents easy changes to those features you may want to use following each
chocolate test run. Consider carefully if you need to enable this feature. The
password has no effect on the operation of the Configuration application.
Press the
Change Password
button on this tab screen. A dialog box will
appear asking for a new password. Enter 8 digits only using the numbers 1
through 4. Any other combination will not be accepted. A warning dialog will
appear. If a valid password is entered, clicking on the
Ok
button will set this
value as the new password in the 225.
