30+ Years of Precision Instruments
elements that harm the effectiveness of hash bod tester:
1. look and check whether the cover of hash bod tester professional thermostat manufacturer has microbial stains or large scratches. Biological contamination will consume or cause oxygen cylinders, which will cause danger to 
the effect of the harmful test product is positive. Paint high-precision thermostat manufacturers large scratches on the surface can also be harmful. 2. Ensure that there are no water droplets on magnetic induction components or thermistors. If there are any, clean them up. To ensure a stable working temperature, zui is good to brand thermostat manufacturer to carry out inspection and actual operation in the laboratory. Compensation for average altitude or atmospheric pressure bubbles, and now many water quality testing instruments often contain atmospheric pressure sensors. They will automatically use the standard pressure value as part of the validation process. 4. Replenish salinity. The salinity of the test article should be checked in advance during the inspection. In order to reduce the harm of salinity to the statistical data of the test article. Shaanxi HACH analysis dashboard
5, to carry out the correction in the natural environment of 100% saturated gas. The effect should be carried out in the gas in the bottle and not easily immersed in the water in the glass bottle. Hash bod tester maintenance methods:
1, positive effect: no matter how technical, it is proposed to only correct the instrument and equipment once a day before obtaining data. Ensure that there are no water droplets on the electrode before the correction, and the camera is in a gas natural environment with 100% water saturation. Put the camera in the storage glass bottle when not in use. To ensure that this glass bottle is kept clean, how the glass bottle appears environmental pollution will be harmful to the effect.
2. camera care: the polarographic controller must have fresh electrolyte solution and membrane and maintain anodic oxidation and negative electrode, so that it can obtain zui good characteristics. The optical sensor only has to look at the paint layer on the cover of the inspection controller sometimes.
3. Heating time: Before the calibration and application of the camera, the polarographic camera will have to have sufficient heating time of 5-15 minutes. Because of the inaccurate effect, the wrong heating time will be very easy to cause statistical data deviation. But the light camera does not need heating time.
in order to obtain the BOD reading value as accurately as possible, it is important to pay attention to the maintenance problems of the hash bod tester.
