Hong Yi Wo Instrument Co., Ltd. (Zhejiang Division): differential pressure transmitter is the introduction of foreign advanced technology and equipment to produce new transmitter, key raw materials, components and parts are imported from, the whole assembly and rigorous testing, the product has advanced design principles, types and specifications, installation is easy to use and so on. Differential pressure transmitter for measurement and control in the following types: ● The high temperature crystallization viscous media ● media ● with solid particles or suspended solids precipitated highly corrosive or toxic media ● eliminate conduction medium pressure pipe contamination of the surroundings leak occurrence; liquid can be removed from the use of isolation, because of the measured signal is unstable, requiring constant insulating liquid supplement the tedious work. ● continuous accurate measurement interface and density remote device to avoid the mixing of different media instantly, allowing the measurement results truly reflect the actual situation of process changes. ● hygiene demanding applications such as food, beverage and pharmaceutical industrial production, not only requires the transmitter wetted parts meet the health standards, and should be easy to wash, to prevent cross-contamination of different media. Design conditions: 2000m3 tank diameter d = 14.5m, height you can get the actual oil inventory G, also know from the formula density ρh = 14m. Time table: 1151LT flange proof differential pressure transmitter, optional flange is to prevent sedimentation and clogging dirt tank bottom pressure tube, transmitter range 0 ~ 140kPa. Second table: use WP Series Intelligent Alarm column display, universal signal input range can be arbitrarily changed, with the column display level, with digital display tonnes of oil. Case of 6 # cans, S = π × r2 = 3.14 × 7.252 = 165m2, height of 14m. The top of the tank, differential pressure transmitter design a level alarm device to prevent oil overflow, as double insurance. In applications where the measured values ??directly to the tonnage, so what kind of oil storage tanks regardless of the secondary table shows the value of the tonnage of oil inside the tank, avoiding the need to determine the density conversion of trouble. Differential pressure transmitter normally used oil out of storage is often pumped through the oval gear flowmeter, flowmeter accuracy is limited because the maximum is only 0.2, differential pressure transmitter measuring density computing needs, which often results in slightly different, resulting in disputes over measurement. Because the results of measuring tank tonnage, but accuracy can reach 0.2 or even 0.1, so compared with volumetric flow meter, differential pressure transmitter measurement results more accurate. Although a small number of oil out of storage, since the resolution is the reason, the result of measurement absolute error is large, a large quantity of oil in the storage time, the higher accuracy and a smaller relative error, differential transmitter is unmatched by other measurement instruments, especially for monthly, quarterly and annual inventory. Practice shows that its main advantages are: ① easy installation and maintenance; ② intuitive readings straightforward, direct readout of oil stocks; ③ eliminates the determination of density and conversion. Note 1: Do not use more than 36V voltage is applied to the transmitter, causing damage to the transmitter; 2: Do not touch the diaphragm with a hard object, causing damage to the diaphragm; 3: Measured medium allowed knot ice, otherwise it will damage the sensor element isolating diaphragm, causing damage to the transmitter, the transmitter if necessary thermal protection to prevent freezing; 4: In the measurement of steam or other high temperature medium, the temperature should not exceed change transmitter when using extreme temperatures, higher than the limit temperature transmitter must be used with heat sink; 5: Measurement of steam or other high temperature media should be used when the heat pipe, so that the transmitter and pipe together, and use the pipeline the pressure to the transformer. When the measured medium is water vapor, heat pipe to inject the right amount of water to prevent contact with superheated steam directly with the transmitter, damaged sensor; 6: Pressure transmission process, should pay attention to the following points, a, transmission device with heat pipe connections, do not leak; b, begin, if the valve is closed, then use, you should be very careful, slowly open the valve, in order to avoid a direct impact on the measured medium sensor diaphragm, causing damage to the sensor diaphragm; c, the pipeline must be kept clear of sediment in the pipeline will pop up and damage to the sensor diaphragm; http://www.yihemeter.com