In the spring, each newly-built community has submitted homes, and the owners began to enter the renovation phase after they got the keys. For this phenomenon, the Beijing Municipal Building Decoration Association Indoor Environmental Protection Committee issued the second warning: to remind the community management department, decoration company, and owners to pay attention to the top ten environmental safety hazards in the renovation project. The first hidden danger of dust Most of the newly constructed greening projects in the spring have not been completed. Because there are no trees or grasses in the green space, there will be a large area of ​​exposed loess. In spring in Beijing, windy conditions may occur in the district due to strong winds. Therefore, when the greening project has not been completed, the wind and sand weather community should adopt measures such as spraying water and laying nets to reduce dust. The decoration company should pay attention to indoor dust prevention and avoid the impact of wind and sand on the quality of decoration; Cause respiratory diseases. The second hidden danger in the construction community At the renovation stage, the property management department must strengthen construction personnel and management of out-of-town personnel and vehicles in the community to avoid safety accidents. The third largest hidden danger of decoration garbage It is necessary to strengthen the harmless management of decoration garbage, centralize control and clean up, and prevent the decoration garbage from polluting the corridor and the residential environment. The fourth hidden danger of decoration fire The community should set up full-time fire safety personnel to intensify inspections, strengthen the management of decoration materials storage and management of flammable and explosive materials. The 5th hidden trouble publication renovation construction electrical accident When the community is intensively renovated, the construction of electrical appliances will result in an increase in the power load. Some non-formal decoration companies have a low awareness of safety. They may operate illegally due to the construction of electricity, resulting in a short-circuit fire or even an electric shock. Sixth hidden danger of construction noise disturbing people Decoration engineering, demolition, machinery, and construction will all generate noise. Construction time should be strictly controlled, and noisy construction should be carried out in the early morning, noon, and night. The seventh largest hidden danger of air pollution in construction renovation Due to the extensive use of chemical adhesives, organic solvents, and organic solvent additives such as paints, coatings, etc. in the decoration process, these can cause indoor air pollution. In particular, there have been major accidents involving explosions due to high concentrations of volatile organic compounds (VOCs) in the air during the painting process, as well as serious personal injuries and property losses. In addition, because the decoration worker slept in the room just after painting, there was a benzene poisoning incident of 5 people. Therefore, the decoration worker and the owner must not be allowed to stay in the construction room to avoid danger. Bathroom cabinet The eighth largest hidden danger of decoration materials pollution In the recent survey of wood-based panels, there were more than 60% of products with pollution problems. In addition, paints, coatings, waterproof materials, adhesives, wallpapers, floor leathers, all kinds of floors, carpets, floor tiles, ceramic tiles, etc. may cause a certain level of pollution. Even if all of them are environmental protection standard materials, indoor environment may occur due to the superposition effect of decoration. Pollution. Ninth hidden danger of indoor furniture pollution Interior furniture includes bedroom furniture, children's room furniture, living room furniture, study furniture, living room furniture, restaurant furniture and kitchen furniture. In recent years, the number of complaints about pollution caused by the excessive release of formaldehyde from wood-based panel furniture has been increasing year by year, and it has become the second influencing factor of indoor environmental safety. The desiccator method or perforation extraction method, which is commonly used, is used to detect the formaldehyde emission of wood furniture. There is a large error between the test data and the actual release amount. Entrance decoration children's room decoration furniture interior decoration paint room wood furniture bedroom furniture living room furniture decoration find decoration company okay decoration living room floor sofa sofa sofa children's kitchen cabinet door study furniture small study restaurant furniture children's restaurant tile adhesive kitchen tile bedroom floor tile Chemical Industry Mass Flow Meter
Sealand is a professional supplier of Chemical Mass Flow Meter, Chemical Mass Flowmeter, Chemical Flowmeter, Chemical Flow Meter, Chemical Coriolis Meter, ATEX, IECEx & CE approved.
The meter can work with a pulse receiver(Count). The connection is as follows. The
resistance value is up to the cable length & the max. input pulse frequency of receiver.
Current 10mA is suitable for most receivers; however, you can reduce the resistance value
when the cable is long. The max. current could be 50mA. Please use the fixed frequency
output function to check if the cable length & resistance value is suitable.
Please check following items before operation, and operate according to relevant rules.
a) If the meter is damaged during shipment and installation;
d) If the meter is grounded properly.
Chemical Mass Flow Meter, Chemical Mass Flowmeter, Chemical Flowmeter, Chemical Flow Meter, Chemical Coriolis Meter Zhejiang Sealand Technology Co., Ltd. , https://www.sealandflowmeters.com
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b) If the voltage is same as marked on nameplate;
c) If the fuse is correct;
e) If the Meter SN on the nameplate of sensor and transmitter are the same.
If everything is fine, please open all valves, make the pipeline full of liquid and then power on
the meter for warm-up for 20min before operation. Finally, conduct zero calibration after first
start, and shall do it again if the meter is moved to another site.
Preparation for zero calibration:
a) Power on the meter for approximately 20min for warm-up;
b) Run the process fluid through the sensor until the sensor temperature reaches the normal
process operating temperature.
c) Close the shutoff valve downstream from the sensor.
d) Ensure that the sensor is filled with fluid and the process flow has completely stopped.