EDYCARX HM802 Carbon Dioxide Controller CO2 Meter Monitor User Manual

HM802 CO-
Monitor and Controller
INSTRUCTION MANUAL

Fe atures

Large Color LCD
Builtin Day/Night sensor
Low Drift NDIR Sensor
High precision temperature and humidity sensor
Calibrated the sensor independently
Replaceable cable, suitable for all plugs
One switch to select the Plant or Human mode

Parts List

Controller Unit x 1
SensorUnit x 1
S Hook  x 1
User Manual x1
Screws and Expansion Pipes  x4

IMPORTANT
To ensure safety, please read this manual carefully before installation and follow the instructions herein .
Thank you for purchasing our HM802 Digital CO; Controler. It is a simple to use, highly accurate digital Oz  controller. The Controller is very precisely measures and controls the carbon dioxide level in the room, accurately maintaining your desired PPM level of carbon dioxide. Its large and easy-to- read LCD screen displays exact PPM readings down to 1 PPM resolution.

LCD Display

Specifications (Typical test conditions: Ambient Temp =23+/-3’C, RH=30%-70%, Altitude=0~100 meter)

CO2 Measurement
Measurement Range| 0-9999ppm
Accuracy at 0~3000ppm| ±50ppm or ±5% of reading, whichever is greater
Repeatability| 20ppm at 400ppm
Display Resolution| 1ppm
Temp Dependence| ±0.1% of reading per ℃ or ±2ppm per ℃, whichever is greater, referenced to 25℃
Pressure Dependence| 0.13% of reading per mmHg (corrected by user’s altitude input)
Response Time| <1min
Warm-up Time| <20 sec

FUNCTIONS

MUTE| Press and hold the DEADBAND button for 3 seconds to ON/OFF the buzzer
℃/℉| Press and hold the UP button for 3 seconds to change ℃/℉
MAX/MIN| Press the MAX/MIN button to display the CO2 MAX/MIN PPM record, press any button or wait about 10 seconds the screen will return to normal display, if you press and hold the MAX/MIN button for 3 seconds, the record will be reset.
RESET| Press both of UP and DOWN button for 3 seconds to restore factory setting.

Select the PLANT MODE or HUMAN MODE
Press and hold the UP button while power on to change the PLANT MODE or HUMAN MODE.
Please watch the video on the Amazon link. Controller typical setup:
For plant: Photocell automatically tums off CO2 regulator or CO2 generator during dark

PLANT MODE

Auto Detect Day/Night| The built-in Photocell sensor can automatically detect whether it is Day or Night. It can override the CO2 control and shut off the CO2 generator by turning off the output power during the night. Conversely, if the Photocell detects light and the CO2 level is low, the device will start the CO2 generator by turning on output power.
SET POINT| Press the UP or DOWN button to set the target PPM
DEADBAND| Press the DEADBAND button to set the desired deadband setting (the deadband range is 50~500PPM, each press is 50PPM)
Example: If the SETPOINT=1000PPM, and the DEADBAND=200PPM, the CO2 output will start to work below 1000-200=800PPM, and shut off over 1000+200=1200PPM. That means the unit will allow a 200 ppm swing above or below your Set Point CO2 Setting.

HUMAN MODE

AL1| Press the UP or DOWN button to set the AL1 (AL1 range is 800~2500PPM, default AL1= 800PPM, each press is 100PPM)
When the CO2 Controller detects that CO2 concentration exceeds the AL1 level, the buzzer
will sound intermittently, the relay will be triggered, and the Ventilation Fan will be activated.
AL2| Press DEADBAND button, the “AL2” icon will flash, then press the UP or DOWN button to set the AL2 (AL2 range is 2600~5000PPM, default AL2=2600PPM, each press is 100PPM) If CO2 concentration continues to rise above the second alarm level (AL2), the tempo of the buzzer will increase.

Calibration

Please calibrate the controller manually if the readings become inaccurate. Take the CO2 sensor (probe uni) to the outside.
According the right side picture, connect the sensor and the mobile power supply (5V) by power cords (type-C). Press the CALI button for 3 seconds, the green LED and red LED will flash alternately.
Waiting about 15 minutes, the calibration wil completed
If PASS, the green LED will flash; if FAIL, the red LED wil flash, please do it again.

Installation Dimension

Disclaimers
This device is not intended for workplace hazard COz monitoring, nor intended as a definitive monitor for human or animal health institutions, life sustenance, or any medical-related situation.
EDYCARX and the manufacturer assumes no responsibility for any damage or loss suffered by the user or any third party arising through the use of this product or its malfunction.
EDYCARX reserve the right to change the spec without notice.

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