_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ The instrument should be placed in a dry room at a temperature of 5-35. When in use, it should be placed on a flat work surface and avoid vibration. Indoor lighting should not be too strong, and avoid direct sunlight. Try to stay away from high-strength magnetic fields, electric fields and electrical equipment that generate high-frequency waves. Avoid high temperatures close to the instrument. Power supply to the instrument: 220V22V, 501Hz, and a good grounding wire must be installed The ZD series scattered light turbidity meter is a combination of photoelectric precision measuring instruments. Please read the instructions carefully before operation and obtain accurate results through corrective measures. 1. Must meet environmental working conditions. 2. The measuring cell must be clean and dry for a long time, and dust must not be covered on the shield when not in use. 3. In humid climates, the power-on time must be extended. 4. The test solution should be poured carefully along the sample bottle to prevent air bubbles from affecting the measurement accuracy. 5. Recalibrate after replacing the sample bottle or repairing it. 6. Non-professional maintenance engineers, please do not open the instrument for maintenance. Material:ABS colour:As Shown Package Contents: 1 x ZD2A Turbidity Meter Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_