Alarm On-Delay
15 minute
Alarm Setpoint
100 PPM CO / 5.0 PPM NO
2
Alarm Activation Type
Single
Analog Output Signal
4-20 mA
Concentration Display Type
Average
Automatic Relay Override
Disabled
BACnet IP
DHCP
Date and Time
Current Date/US Central Time (CT)
Daylight Savings Time Correction
On
Each transmitter ordered will be assigned a number 1 through 128 as applicable, alternating
between Carbon Monoxide and Nitrogen Dioxide. Transmitter numbering should not be
changed without first consulting Brasch technical support.
Adjusting the Hardware Settings
Changing the Sensor Address
The sensor address is set by SW1 on the right side of each sensor board using a binary
counting system. Digit 0 is at the top of the board and 1 is at the bottom. See figure 12 on
page 54 for proper settings. Each sensor comes preset from the factory with the correct
address assigned, so these switches should not be touched except for in very specific cases.
Please consult with the factory before reassigning sensor addresses.
Changing the Relay Board Address
The relay board address is set by SW1 in the middle of each relay board using a binary
counting system. Digit 0 is at the right of the board and 1 is at the left. See figure 18 on page
58 for proper settings. Each relay board comes preset from the factory with the correct
address assigned, so these switches should not be touched except for in very specific cases.
Please consult with the factory before reassigning relay board addresses.
Changing the Analog Output Scale
The scale of the analog output on each relay board is adjusted by moving the jumper on JP1 to
the appropriate position. From top to bottom, the options are 2-10 VDC, 1-5 VDC, 0.2-1 VDC,
and 4-20 mA. See figure 20 on page 59 for proper settings.
IOM03
Rev 1.1 – May 18, 2021
29