As a professional manufacturer in the field of flow control equipment, Xi'an Shenghongchuang Instrumentation Co., Ltd. reveals the 5 core advantages of the HDA-HDA8700 pressure transmitter for you. Diffused silicon sensor technology delivers higher accuracy and stronger stability, making it suitable for various liquid and gas pressure measurement scenarios. This article will provide a detailed analysis of the performance characteristics and application scope of products such as the P-P3297 and DMP-DMP333 series, helping information researchers and operators gain an in-depth understanding of this key measurement device.

Technical principles and industry position of diffused silicon sensors

Diffused silicon pressure sensors use the piezoresistive effect principle of semiconductor silicon materials, forming a Wheatstone bridge structure on the silicon chip surface through MEMS technology. Compared with traditional strain gauge technology, its sensitivity is increased by more than 50 times, and temperature drift is controlled within ±0.02%FS/℃. In harsh working conditions such as petrochemicals and electric power energy, the HDA-HDA8700 series, relying on a 316L stainless steel fully sealed structure, can achieve 0.1 class accuracy and 150% overload protection, meeting the requirements of international standards such as API 675 and GB/T 17614. As a national high-tech enterprise, Xi'an Shenghongchuang has successfully applied products such as PTX-PTX600 in key national projects such as the West-East Gas Pipeline and the Three Gorges Power Station.

In-depth analysis of the five core advantages

Advantage 1: Military-grade stability - Using German imported diffused silicon chips, after 1000 pressure cycle tests, the long-term stability of the HDA-HDA4100 still remains at ±0.2%FS/year, far exceeding the industry average. Key parameters such as the compensated temperature range （-10～70℃） and working temperature range （-40～85℃） have both been verified by third-party laboratories.

Advantage 2: Intelligent signal processing - The KYB-A series with a built-in ASIC chip supports 4～20mA/RS485 dual output, equipped with a three-level lightning protection module and reverse polarity protection. Actual tests show that in the strong electromagnetic interference environment of the coal conveying system in power plants, its signal transmission bit error rate is lower than 0.001%.

Advantage 3: Modular design - The DMK-DMK331 provides 7 installation specifications such as submersible type/flange type, and uses the same interface standard as the domestic liquid level transmitter JS-800B LCD display explosion-proof liquid level sensor, supporting plug-and-play replacement. Users can choose polyurethane or FEP cables according to the characteristics of the medium.

Comparison of typical application scenarios

Procurement decision-making guide

For different budget requirements: the economical DMK-DMK351 is quoted at about 2800 yuan, suitable for conventional scenarios such as wastewater treatment; while the high-end PTX-PTX600 model （about 6500 yuan） is suitable for special fields such as nuclear power. It is recommended to give priority to manufacturers certified with both ISO 9001/14001, such as Xi'an Shenghongchuang, which provides an ultra-long 12-month warranty service.

Why choose us

As a key supported enterprise in Xixian New Area, we have a CNAS-certified laboratory and 20 patented technologies. From selection consultation for the DMP-DMP333 to after-sales calibration, we provide full life-cycle technical support. Consult now on the HDA-HDA8700 series to receive a free working condition analysis report.