EMSJ formaldehyde tester

EMSJ Formaldehyde Detector Manual

I. Appearance

Technical indicators

Test items: formaldehyde and TVOC (containing benzene) in the air

Detection range: 0.000-6.000

Concentration unit: mg / m3

Relative humidity: 20% ~ 85%

Detection temperature: 5 ℃ ~ 45 ℃

Battery: 2 × 7 batteries (AAA)

Third, use

1. Switch on and off: When the switch is off, press the switch button, the screen lights up, and the instrument needs to warm up for 5 minutes before normal measurement can be performed. In the measurement interface, press the switch button to complete the shutdown.

2. After receiving the detector, put the battery in the battery box and turn on the instrument. After the sensor is warmed up, take it outdoors or place it on the window sill for 5-7 minutes. After long pressing the calibration key for 5 seconds, release the instrument.\"\" \ \"Beep, the interface displays the number 8 one by one, indicating that the zero calibration is complete, and you can take it to the room for testing. (Don't approach the roadside, odorous ditch, trash can, industrial pollution area, etc. when outdoor calibration).

3. Place on the sofa, desk, floor, bed or furniture, and place the instrument statically in the place to be tested for 5-7 minutes. After 5-7 minutes, the reading displayed on the screen of the instrument is the detected formaldehyde and TVOC content, and then When you get the second spot for testing (no need to press the calibration key again), the reading will be based on the reading after 5-7 minutes.

4. After the test is completed, store it in a cool and dry place after shutting down.

5.The national standard for formaldehyde content is 0.1mg / m3 (mg per cubic meter)

TVOC national standard is 0.6mg / mЗ (mg per cubic meter)

Fourth, precautions for use

1. Any sensor will be interfered by certain external substances when working. Therefore, when using the instrument for testing, please avoid chemical pollution substances such as perfume, perfume, paint, air freshener, cigarettes, alcohol, etc.

2. The air is always circulating, and the formaldehyde content in the air may be different, so it is normal for the detection value to fluctuate.

3. Avoid strong winds such as electric fans and air conditioners directly from the test port during the test to interfere with the accuracy of the test results. The instrument should be placed in a relatively stable area where the air flows.

4. Before detecting formaldehyde in bedrooms, living rooms, cabinets, cloakrooms and other spaces, seal the doors and windows for 24 hours before testing, the effect is better. Detect multiple points in a room, the average of the readings of multiple points, that is, the average formaldehyde content in the room air.

5. Do not place the instrument in a high-concentration formaldehyde environment outside the measurement range, otherwise the instrument may be damaged.

6. Do not blow air directly on the detection port of the instrument or block the detection port. This will interfere with the normal operation of the instrument.

7. Do not place the instrument where it will be exposed to water.

8. Do not subject the instrument to strong shocks and vibrations, such as dropping the instrument on the ground.

9. Do not disassemble, repair or modify the instrument yourself.

10. If the instrument is not used for a long time, the battery needs to be removed.

Five, packing list