Chapter 5 – Basic Operation
5.1 Using the Keypad
The CL1/CL2 is controlled using the keypad located around the display. All the display screens are accessed
through a simple menu system.
NOTE 1) The arrow keys located under the screen are used for two purposes.
1. To navigate through the menus using the <ENTER> key to select the highlighted item on the
menu. In most cases the <ESC> key will exit the current screen and return to the top of the
previous menu.
2. To select among multiple data fields on some of the screens for editing.
NOTE 2) The arrow keys on the sides of the display referred to as “soft keys” are
used only when associated with a button on a screen. The use of these keys varies from
screen to screen – see the detailed descriptions later in this chapter.
NOTE 3) When numeric entry is required on any screen the following procedure is used.
Use the arrow keys below the screen to select which field to edit. The currently selected box
will have a dashed line around it.
1 Press the <ENTER> key first
2 Use the numeric/function keys to enter the value
3 Also note the up arrow may be used for +/- and the down arrow may be used for the decimal point when
necessary.
4 Press the <ENTER> key again to complete the entry
NOTE: The <F1> key is used to exit analysis and return to the Main Menu.
5.2 Alarm & Fault Screens
Three types of messages used in the CL1/CL2:
Alarm messages (level 1 and level 2)
System faults (critical faults that terminate and/or prevent analysis)
Event messages (warnings, non-critical faults, and various events)
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