Long pole concentration meter 2

Instructions for Use

Used at altitudes below 2000 meters (altitude)

The instrument is used indoors;

The operating environment temperature is between 10 ℃ and 60 ℃;

Do not suddenly change the ambient temperature of the instrument;

Do not place the instrument in areas with large amounts of dust and strong vibrations when using it;

Do not place the instrument in damp places;

Do not install the instrument in direct sunlight or place heavy objects on the instrument;

Near the heating source;

Do not install in environments with high dust or exposure to corrosive gases;

General fault diagnosis and troubleshooting

When there is no signal output from the concentration meter, the first thing to check is whether the extended cable is broken or short circuited, or whether the working voltage of the concentration meter is normal

2. If there is suspicion of a malfunction in the concentration meter, the following methods can be used to check and determine. Remove the concentration meter and measure the concentration of water and a certain concentration of medium separately. Use a multimeter to measure the mA current range. The blue electronic wire: 4-20 outputs positive and the yellow electronic wire: 4-20 outputs negative. The current signal should be 4mA, and the current output corresponding to the measured medium is normal. Otherwise, the concentration meter is faulty.

Concentration Meter User Manual Shanghai Chaohui Pressure Instrument Co., Ltd