CMTOOL HCHO Air Quality Detctor User Manual

**CMTOOL HCHO Air Quality Detctor User Manual

**

OPERATIONS INSTRUCTION

Hello and welcome to watch the operation step of our air quality analyzer.

• First, let’s take a look at the display interface of the product. We have various buttons and symbols displayed on the screen. To turn on the device, press and hold the power button “ ” for 5 seconds until you hear a beep.
• As the device starts up, you will see a countdown from 120 to 0 on the screen. It is recommended to leave the instrument in a ventilated place for 20 minutes before starting up. Once the device is on, you can see the current temperature and humidity levels displayed on the screen.
• To switch between Celsius and Fahrenheit, press the temperature unit selection button marked with a “ ” symbol. Use this button to set the temperature unit as per your preference.
• Next, we have a mute button marked with a “ ” symbol. Pressing this button will turn on or off the alarm sound. In mute mode, the “ ” symbol will not be displayed, and there will be no alarm sound. By default, the sound is on.
• You can view the maximum value data in the current test record by pressing the maximum value data viewing button marked with a “ ” symbol.
• To turn on the backlight function, press the backlight button marked with a “ ” symbol. You can press it briefly to turn the backlight function on or off.
• We have a calibration button marked with a “ ” symbol. Press and hold this button for 5 seconds, and the air quality data will be cleared and retested. It is recommended to enter the test mode after starting up in a ventilated place for 120 seconds.
• Finally, we have different symbols displayed on the screen indicating the parameters being measured. The air quality analyzer can test HCHO concentration, Temperature, CO2 concentration, TVOC concentration, Humidity, which is widely used in the home, office, car, kitchen, bedroom, gym, hotel, camping, party and more.

That’s it! These are the basic operations of our Air Quality Monitor. We hope you find this operations manual helpful. Thank you for watching!

IMPORTANT REMINDER

• Before use, please read the following instructions carefully and use the instrument correctly according to the manual.
• Do not disassemble the instrument or throw it into a fire.
• Avoid operating the instrument in strong wind environments.
• Avoid vibration and dropping.
• If not used for a long time, the preheating time for the first startup will be longer
• . Note: Do not let liquid flow into the interior of the instrument.

TIPS FOR USE OF THE INSTRUMENT

• After testing, the device must be powered off to avoid accidents.
• Avoid severe vibration of the instrument.
• After the instrument has been left for a long time, odorous gases will accumulate in the instrument, which will seriously affect the test results. In this case, the instrument must be placed in a cool and ventilated place and used for more than 1 hour (No need to operate the instrument during ventilation).
• Products that exceed the validity period and have defects should be repaired in a timely manner.
• Avoid using gases that exceed the measurement range to impact the sensor, otherwise, the sensor may be damaged, and human damage is not covered by the warranty.

**INSTRUMENT INTRODUCTION

**

• A- Digital temperature and humidity sensor.
• B- LCD display.
• C- Mute button: “ turn on or off the alarm sound. In mute mode, the “) ” symbol is not displayed, and there is no alarm sound. The sound is on by default.
• D- Maximum value data viewing button: “MAX” used to view the maximum value data in the current test record.
• E – Temperature unit selection button: “°C/°F” switch between Celsius and Fahrenheit.
• F – Backlight button: ” function on or off. press briefly to turn the backlight
• G -Calibration button: “ ” press and hold for 5 seconds, air quality data will be cleared and retested (it is recommended to enter the test mode after starting up in a ventilated place for 120 seconds).
• H- Power button: “ “press and hold for 5 seconds to hear a beep to turn on or off the power. When starting up, the screen digits count down from 120 to 0 (It is recommended to leave the instrument in a ventilated place for 20 minutes before starting up).

PRODUCT DISPLAY INTERFACE

INTRODUCTION TO DISPLAY CONTENT

• Alarm sound : Press “Mute Button” to operate

• CO2 measuring range: 385ppm-2000ppm

• TVOC measuring range : 0.000mg/m³~2.000mg/m³

• HCHO measuring range : 0.000mg/m³-1.000mg/m³

• Temperature display : Press “Temperature unit selection Button” to operate
  Measuring range: 0°C-90.0°C (Precision 1°C), 32°F 194°F (Precision1°F, above 100°F display integers)

• Humidity display : Measuring range: 0%~99%RH

• Environmental quality tips:
  Environmental quality| GOOD| OK| POOR
  ---|---|---|---
  CO2| <500ppm| 500~599ppm| >600ppm
  TVOC| <0.3mg/m³| 0.300~0.599mg/m³| >0.6mg/m³
  HCHO| <0.04mg/m³| 0.04~0.079mg/m³| >0.08mg/m³

GOOD:
CO2 detection reference value is less than 500ppm;
HCHO detection reference value is lower than 0.04mg/m³;
TVOC detection reference value is lower than 0.3mg/m³.

OK :
CO2 detection value 500~599ppm;
HCHO detection value 0.04~0.079mg/m³;
TVOC detection value 0.300~0.599mg/m³.

POOR (pollution, buzzer sound alarm):
CO2 detection value is higher than 600ppm;
HCHO detection value is higher than 0.08mg/m³;
TVOC detection value is higher than 0.6mg/m³.

• When the battery power is too low, the battery symbol box is blank, indicating that the power is about to run out. To be charged, the characters in the battery frame will blink successively until the battery is charged. Battery symbol is fully displayed after full charge.

POWER SUPPLY

• The device has a built-in 3.7V lithium battery. Please use a standard and safe charger for charging.

WARRANTY

• Thank you for choosing our products, we will provide youwith the following services and promises.

• After the warranty period expires, repairs will be chargedfor replacement parts.

• After the failure, please contact the manufacturer, we will
  give you the most complete service in theshortest time.
  The following items are not covered by the warranty:

• Man-made faults are not covered by the warranty.

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