Faced with numerous diffused silicon pressure transmitter models such as YM-JGSYY、WS-WS101、QBE-QBE2002，do you feel unsure which one to choose？This article provides a detailed analysis of the features of each model，from the YM-GJ remote signal version to the 40.4366 industrial application version，helping you quickly match your requirements。Whether for installation、maintenance or customization needs，one article solves all your selection confusion！

In the field of industrial automation，pressure transmitters are key sensor devices，and their selection directly affects system stability and measurement accuracy。Diffused silicon technology has become mainstream due to its high sensitivity and low temperature drift characteristics，but faced with complex models such as YM-JGSYY、WS-WS101、QBE2003-P6，users often fall into a selection dilemma。This article will systematically sort out the core differences among 10 major mainstream models，from the special design of the YM-GJ with remote signal，to the explosion-proof installation requirements of KS-E-E-Z-B01U-M-V，and interpret technical parameters in combination with the international IEC 60770 standard，helping operators accurately match models according to medium characteristics and environmental conditions。

1、Technical Analysis and Model Classification of Diffused Silicon Pressure Transmitters

Diffused silicon pressure transmitters work through the piezoresistive effect of silicon crystals，and their model differences are mainly reflected in measuring range、output signal and structural design。Taking the WS-WS101 pressure transmitter as an example，it uses a 316L stainless steel isolation diaphragm，is suitable for liquid or gas media from -40℃~125℃，and achieves an accuracy of ±0.5%FS，while the QBE-QBE2002 pressure transmitter has a built-in alarm module and can set upper and lower limit contact outputs。Comparing the YM-JGSYY pressure transmitter with the KS-E-E-C-B04C-M-V model，the former supports G1/2" direct installation，while the latter requires flange connection and offers better stability under high-pressure operating conditions。

2、Selection Guide for Five Major Application Scenarios

1.Chemical Explosion-Proof Environments：The KS-E-E-Z-B01U-M-V pressure transmitter is ATEX certified and suitable for Zone 1 hazardous areas，and its manual emphasizes the need to use armored cables for wiring。2. High-Accuracy Calibration Requirements：The YM-QP pressure transmitter has a built-in temperature compensation chip，with temperature drift less than ±0.02%/℃ within the range of 0~50℃，and the calibration cycle can be extended to 3 years。3. Customized Projects：KS-E-E-C-B02C-M-V supports customized process connections，such as clamp-type sanitary fittings，meeting SIP/CIP cleaning requirements in the pharmaceutical industry。

3、Maintenance and Troubleshooting FAQ

Q：How to handle reading drift in the WS-WS101 pressure transmitter？
A：First check whether the pressure guiding pipe is blocked，then perform zero calibration with a standard pressure source，and if it is still abnormal，check whether the sensor diaphragm is damaged。
Q：Can the YM-JGSYY model measure corrosive media？
A：A Hastelloy diaphragm version must be selected，as the common 316L stainless steel version is only suitable for weak acid and weak alkali environments。
Q：How to set the alarm control of QBE2003-P6？
A：Switch the setting mode by bringing the magnetic pen close to the sensing area，and refer to the supplied diffused silicon liquid and gas pressure sensor manual for specific threshold settings。

4、Industry Trends and Technological Innovation

The latest ISO 15839 standard released in 2023 puts forward higher requirements for liquid measurement，driving product upgrades such as the 40.4366 series to dual-redundant sensor designs。At the same time，wireless transmission functionality is becoming standard，and a case study from a water treatment plant shows that adopting the YM-GJ version with remote signal reduced wiring costs by 62%。In the next 3 years，miniaturized diffused silicon sensors based on MEMS technology will reshape the market landscape of traditional models such as QBE-QBE2002。

Why Choose Our Pressure Transmitter Solutions？

With 15 years of focus on diffused silicon technology R&D，we provide a full range of products from the YM-JGSYY standard version to the KS-E-E-C-B04C-M-V customized version。All models are CE and SIL2 certified，and support delivery within 72 hours and on-site calibration services。Click to obtain your exclusive selection manual，and our engineering team will provide you with medium compatibility analysis and installation guidance，solving measurement challenges under special operating conditions。