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MEGA3 NFPA Medical Gas Notification System
4107 9016 59.03
4.6 Additional Components
4.6.1 4-20mA Devices
To configure a 4-20mA device for monitoring,
start on the CONFIGURATION screen. Users
are always prompted to enter the password
when accessing this screen.
Type the password, and touch the Enter but-
ton.
The CONFIGURATION screen displays.
The MEGA3 alarm is designed to allow con-
figuration of four gas badges using the B50
board to monitor 4-20mA devices. The alarm
must be set as an Area panel or Combination
panel. See Alarm Type Tab in Section 4.3.2.
After configuring the Alarm Type, the B50
board must be initialized. Select “Initialize
Modules” on the Primary Settings Screen.
Figure 100: Configuration screen
Figure 101: Primary Settings screen
Press the “Scan” button to make sure the B50
board is set up, as it should turn green. Once
the B50 board is green, press the “Save” icon
to exit the screen. Exit the “Primary Settings”
screen.
To configure the first badge to custom set-
tings, touch the corresponding number but-
ton in the numeric display that represents
the badge to be configured. If a badge needs
to be added, press the “+” for additional
badges.
Eight tabs are used for configuration. Tabs are
listed in alphabetical order (Figure 103).
A = [Gas Input] Tab
The B50 should be green and there should be
4 choices (I01, I02, I03, I04). Select the wired
input to be displayed on that badge:
Touch the tab for the appropriate wired gas
sensor.
Figure 102: initialize Modules screen
Figure 103: Configure Area screen
