Table of Contents
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Alarm Relay Output
The CO200 includes an alarm relay output that can be connected to an external device such as an
alarm light, warning sign, alarm buzzer, or controlling device (ON/OFF switch to a fan, for example).
The relay switches ON and OFF as the CO200's CO
section for more on the alarm feature). The fan display icon flashes each time the relay closes.
The rear relay output jack requires a 2.5mm stereo phone plug. The relay is rated for 1A at 30VDC
or 0.5A or 125VAC.
1. AC adaptor input (5VDC)
2. Alarm relay output
3. Phone plug wiring
Setup Mode
Long press the SET button to enter the setup mode.
P1.1: Threshold setting for the 'GOOD' air quality display icon
When entering the setup mode, P1.
access P1.
for setting the CO
1
current
set value will appear blinking on the display.
Press the ▲ or ▼ button to increase or decrease the value. Each press adjusts in 100 ppm
increments. The range is 0 to 700 ppm (default is 700 ppm).
When the value has been set, press the SET button to confirm the 'GOOD' threshold and move to
for setting the 'NORMAL' display threshold. Press the ESC button to exit without saving.
P1.
2
P1.2: Threshold setting for the 'NORMAL' air quality icon and the CO
P1.
is used for setting the CO
2
the low threshold for the alarm beeper, the flashing fan alarm icon, and the output relay. The current
set value will appear blinking on the display.
Press the ▲ or ▼ button to increase or decrease the value. Each press adjusts in 100 ppm
increments. The range is 700 to 1000 ppm (default is 1000 ppm).
When the value has been set, press the SET button to confirm the 'NORMAL' limit and move to
for setting the 'POOR' display threshold. Press the ESC button to exit without saving.
P1.
3
and 'CO2' are displayed. Press the SET button again to
0
upper limit (threshold) for the 'GOOD' air quality display icon. The
2
high threshold for the 'NORMAL' air quality display icon. It is also
2
4
alarm switches ON and OFF (see previous
2
Alarm
2
CO200-en-US v1.3 1/21
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