The maintenance of explosion-proof anemometers needs to be combined with the safety regulations of explosion-proof equipment and the special requirements of anemometers. The following are the key maintenance points:

Explosion proof safety maintenance

Regularly check the sealing of the joint surface

Check the gap width of the joint surface once a month (not exceeding the maximum allowable gap indicated on the nameplate). If the gap exceeds the standard, use a feeler gauge to measure and tighten the screws. Do not scratch the surface with hard objects. ‌

Keep the shell clean and avoid dust accumulation or corrosive substances from corroding. ‌

Explosion proof structural integrity

Prohibited from use in flammable gas environments to avoid probe exposure causing explosions. ‌

Check if the explosion-proof signs are clear and if the equipment is operating within the temperature range of -20 ℃ to+40 ℃. ‌

Instrument performance maintenance

Calibration and Cleaning

According to the "Verification Regulations for Hot Ball Anemometers", they should be sent for inspection and calibration every year to ensure measurement accuracy. ‌

Clean the surface dust of the sensor after use to prevent oil stains or impurities from affecting the sensing accuracy. ‌

Line and power maintenance

Check if the power cord connection is loose or damaged to ensure stable output voltage of the power adapter. ‌

Before each use of mobile devices, it is necessary to check the insulation of the circuit and test the circuit resistance with a multimeter (should be ≤ 10 Ω). ‌

emergency response

When there is abnormal odor, smoke or liquid infiltration in the equipment, immediately cut off the power and contact professional personnel for maintenance. ‌

When not in use for a long time, it is recommended to turn on the power every month to check if the function is working properly. ‌

Note: The specific maintenance cycle and standards should refer to the equipment manual. If it involves intrinsic safety equipment, the integrity of the circuit should be checked every 3 months. ‌