This series of pressure transmitters uses imported ceramic sensors or diffused silicon sensors with internationally advanced technology,adopting piezoresistive ceramic diaphragms:E+H capacitive ceramic sensors:using diffused silicon sensors from the American companyGE NovaSensor,combined with high-precision electronic components,and assembled through a rigorous process,compared with conventional pressure transmitters currently on the market.there are two significant technical differences,one is that the measuring element uses new ceramic materials,which will not cause process contamination to the measured medium.the second is that there is no intermediate liquid inside the measuring element,and it is completely solid-state.The medium pressure acts directly on the ceramic diaphragm, causing displacement of the measuring diaphragm, thereby generating a change in capacitance. This change is detected, amplified, and converted into a standard signal output by the electronic components connected to it. Under normal pressure, the diaphragm displacement is 0.025mm;under overpressure, the diaphragm displacement is0.1mm,at this time the measuring diaphragm comes into contact with the ceramic support and is protected,thus avoiding damage.

Main performance indicators:

1 Imported ceramic sensors or diffused silicon sensors are used, with no intermediate liquid and small temperature drift,strong corrosion resistance; sturdy and durable, with strong overpressure resistance, and excellent wear resistance and impact resistance.
2 The pure ceramic substrate will not cause process contamination and is suitable for the food and pharmaceutical industries.
3 Zero point and span positive and negative shifts are adjustable, easy to operate, and the adjustments do not affect each other;
4 Wide pressure range, from micro-pressure10kPato high pressure160MPa;
5 Good stability: ≤0.2%FS／year;
6 Linearity better than0.1%FS;
7 Wide compensated temperature range: －40～+85℃;
8 Electromagnetic interference resistance;
9 Because the sensor uses dry ceramic and has no dielectric medium, it is minimally affected by temperature and is not affected by installation orientation.
10 Intrinsically safe explosion-proof, explosion-proof ratingiaIICT4;
1l Enclosure protection rating:IP65

   For the two-wire4-20mAoutput type,the standard power supply isDC24V,when the load resistance is greater than600Ω,the power supply needs to be increased by1Vfor every additional50Ω,but thezuimaximum power supply limit isDC45V.When a power supply exceedingDC24Vis required,the output circuit should avoid operating for a long time under zero load resistance conditions,and if necessary, a resistor may be connected in series in the output circuit to reduce the power consumption of the output power transistor.Under zero load resistance, thezuiminimum supply voltage isDC12V