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HA20 2-Channel Controller
2.2 Changing Menu Variables Using The
Keypad
Next
Cal
Figure 2-1. Keypad
Upon entering a menu, a pointer controlled by the up/down arrow keys,
indicates the selected variable. Some are simple YES/NO or ON/OFF
entries toggled by pressing the Edit key. Others, such as Channel ID
and Eunits fields, may have many ASCII character possibilities. Allowed
ASCII characters are as follows:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
abcdefghijklmnopqrstuvwxyz
!"#$%&`()*+,-./0123456789:;<=>?@[\]^_`.
Notice the often used blank character is located after lower case z
and before the exclamation point !. Edit places a cursor under the item
and up/down arrow scroll through each allowed entry. The Next key
moves the cursor to the next position within a field. When the field is
complete, Edit clears the cursor and loads the field into non-volatile
memory where it is retained indefinitely. Without a cursor present, the
Next key closes open menus in reverse order and returns the LCD to
the data display.
HA20 Technical Manual
Magnetic
Keypad
Alarm
Edit
Reset
(Keypad buttons
behind door)
blank space
2.2.1 Setup Configuration Menus
The SETUP menu shown in the middle of
2-2 is reached by pressing Edit with any data display present. This is
the entry-level screen to all Channel, System and Security menus. It
also shows the firmware version operating in the HA20. Use the up/
down arrows keys to move the pointer to the desired menu and press
the Edit key to select.
Figure 2-2. Setup Configuration Menu
2.2.2 Channel Setup Entry Menu
The Channel x SETUP menu shown in Figure 2-3 allows configuration
of all variables for the selected channel. These are Alarm 1, Alarm 2,
Alarm 3, Configure and CAL Setup.
Figure 2-3. Channel Setup Entry Menu
2.2.3 Alarm 1 / Alarm 2 / Alarm 3 Set-Up Menus
Alarm 1, 2 and 3 have identical menus. The only difference is that
A1 LED indicators are yellow while A2's and A3's are red. Typical
applications often have A1 set at a WARN level, A2 at a HIGH level and
A3 at a negative FAULT level. However, it is important to understand
there is no functional difference between A1, A2 and A3, therefore
only one is shown in Figure 2.4.
2-3
Figure 2-1
and in Figure
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