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AT-MGS-408 User Manual
4. Operation
4.1. Overview
4.1.1 Main Function
Every five seconds the AT-MGS-408 Gas Detection Controller collects gas concentration
and status information from each connected gas detector. Gas concentration appears
on the LCD display and connection status, fault and alarm conditions are indicated
by the LED matrix for each channel. When an SD card is installed and data logging is
enabled
(see Section 4.4 on page 24)
, concentration and status information is logged
every 10-seconds for all connected gas detectors. Detector data and controller status
information can also be communicated via MODBUS, to a master or BMS device.
4.1.2 Power Up
After power up, the firmware revision level will be indicated on the LCD followed by
an LED/LCD and beacon self test. The controller will then begin scanning connected
detectors and display their reported gas concentration on the LCD and status
information on the LED matrix.
4.1.3 Channel Number Keys
Pressing a Channel number key will bring up a scrollable channel detail screen with
detector specific information. Pressing the channel number key a second time will
access the channel setup menu.
4.1.4 Menu Access and Navigation
To access the System level menu:
Main Menu
press
OK
. The currently selected menu item is indicated with triangle
pointers to the left and right of the description.
If the menu list is longer than can be displayed, up and down arrow keys on the
right side of the screen will indicate additional items are available by either scrolling
up or down.
Figure 4-3 -
Main Menu
