System Description
2-2
OMNTEC
®
Mfg., Inc.
2.2.1.1
Controller Front Panel Features
The following features are available or accessible at the Controller’s front panel (see
Figure 3-1).
Note: Some features must be enabled and/or programmed by an authorized installer.
♦
LCD
The LCD allows for easy programming of the controller, provides status and
inventory data, and provides immediate identification of warning and alarm
sources.
♦
Arrow Keys
The arrow keys are pushbuttons located below the LCD display. To select a field
on the bottom line of the LCD, press the arrow key that points to the field. This
will allow navigation through menus and select functions.
♦
Function Keys
Four function keys, located directly below the arrow keys (
,
MENU
,
TEST
, and
ACK
), allow you to obtain printouts, return to the previous or MAIN
Menu, delete characters on the LCD, initiate system test, and acknowledge
alarms.
♦
Data Keypad
The data keypad resembles a telephone keypad containing alpha-numeric
characters and is used for entering data. It also contains CURSOR LEFT and
CURSOR RIGHT keys for positioning the cursor on the LCD.
♦
LEDs
Three LEDs are used to indicate system status (
OK
), detection of a fault condition
(
FAULT
), and indication of an alarm condition (
ALARM
).
♦
Printer
A 36-character thermal printer can be activated manually or automatically to
provide permanent records.
♦
Lock and Keys
The OEL8000II controller has with a lock to prevent internal tampering. The end-
user is provided with two keys. Do not open the controller yourself. Only
authorized and qualified professionals may service or install components in the
OEL8000II system. Contact OMNTEC® Mfg. Inc. for replacement of lost keys.
2.2.1.2 Self
Test
When activated by pressing the green
TEST
key on the controller panel, the self-test
program will test various elements of the system including the RAM, EPROM, LCD,
horn, front panel LED’s, level probes, and the leak sensors. If an optional remote
annunciator is installed, it will also test the annunciator by causing its lights to blink
and horn to sound. The self-test feature includes an automatic printout (see Figure
2-1).
