Extech Instruments CO200 User Manual page 2

Introduction
Congratulations on your purchase of the Model CO200 Carbon Dioxide Meter. The CO200
measures and displays CO
alarm (with alarm relay output), and real-time calendar clock, make this an ideal instrument for
indoor air quality (IAQ) monitoring. The CO200 is shipped fully tested and calibrated and, with
proper use, will provide years of reliable service.
Description
METER
1. LCD Multifunction display
2. Power LED indicator
3. Control buttons
Power adaptor jack, alarm relay jack, and sensors on rear
LCD DISPLAY
1. CO concentration in ppm
2
2. Calendar clock
3. Air Temperature
4. % Relative Humidity
FUNCTION INDICATORS
ppm
GOOD
NORMAL
POOR
Air Temp
Humidity %
°C or °F
MIN/MAX
CONTROL BUTTONS
SET
ESC
RESET
▲
MIN/MAX ▼
level, air temperature, and relative humidity. Visible and audible
2
CO measurement value
2
CO (good air quality level)
2
CO (normal air quality level)
2
CO (poor air quality level)
2
Air Temperature
Relative Humidity
Celsius or Fahrenheit units
Minimum or Maximum readings
Flashes when CO alarm is triggered (relay activates)
2
Long press to enter setup mode. Saves settings.
Exits setup page/mode. Terminates CO
Long press to clear the MIN/MAX memories.
Select a mode or increase a value in the setup menu.
Access MIN/MAX function or use as down-arrow in setup mode.
Long press SET, MIN/MAX, and ▲to enter the CO
calibration.
2
2
calibration mode.
2
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