This series of pressure transmitters adopts imported ceramic sensors or diffused silicon sensors with internationally advanced technology levels, adopts piezoresistive ceramic diaphragms:E+H capacitive ceramic sensors: adopts the United StatesGE NovaSensor company's diffused silicon sensors, 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 sensing element uses emerging ceramic materials, which will not cause process contamination to the measured medium.The second is that there is no intermediate liquid inside the sensing element, and it is completely solid-state.The medium pressure acts directly on the ceramic diaphragm, causing the measuring diaphragm to deflect, thereby producing a change in capacitance, which is detected, amplified, and converted into a standard signal output by the connected electronic components. Under normal pressure, the diaphragm deflection is0.025mm; under overpressure, the diaphragm deflection is0.1mm, at which point the measuring diaphragm contacts the ceramic support and is protected, thus avoiding damage.

Main performance indicators:

1 Imported ceramic sensors or diffused silicon sensors are adopted, with no intermediate liquid and small temperature drift, strong corrosion resistance; robust and durable, strong overpressure resistance, with 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 shift are adjustable, easy to operate, and the adjustments do not affect each other;
4 The pressure range is wide, from micropressure10kPa to 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 adopts dry ceramic, without any dielectric, it is minimally affected by temperature and is not affected by the installation orientation.
10 Intrinsically safe explosion-proof, explosion-proof gradeiaIICT4;
1l Enclosure protection grade:IP65

   For the two-wire4-20mA output model, the standard power supply isDC24V, when the load resistance is greater than600Ω, for every additional50Ω, an additional1V power supply is required, but thezui maximum power supply limit isDC45V.When a power supply exceedingDC24V is required, the output circuit should avoid long-term operation 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, thezui minimum power supply voltage isDC12V