Core Advantages and Technical Features

The PT-C pressure transmitter adopts diffused silicon Hesman pressure sensor technology, with its core advantages being high accuracy and long-term stability. Compared with traditional piezoresistive sensors, diffused silicon technology forms sensitive elements on the silicon chip surface through semiconductor doping processes, featuring small temperature drift (±2%FS) and fast response speed (≤1ms). For example, its comprehensive accuracy can reach Class 0.1, and its long-term stability reaches ±0.2%FS/year, making it especially suitable for harsh operating conditions such as petrochemical applications. Similar products manufactured by Xi'an Shenghongchuang Instrument Co., Ltd., such as domestic liquid level transmitter umd-99 LCD display explosion-proof liquid level sensor, also adopt a 316L stainless steel fully sealed structure, verifying the reliability of this technology in industrial scenarios.

Typical Application Scenarios and Performance Comparison

In the field of flow control equipment, the PT-C pressure transmitter is often used in power plant water supply systems (range 0-200m water column) and municipal wastewater treatment (protection grade IP65). Compared with models such as NPT-NPT101, its advantages lie in anti-clogging design and anti-interference capability, but it should be noted that its operating temperature range (-40～85℃) is slightly narrower than the -50～120℃ range of the HG-HG400 model. Practical cases show that in hydrochloric acid storage tank monitoring at a chemical plant in Shaanxi, the PT-C transmitter, due to the use of polyurethane guide wires and laser trimming compensation technology, operated continuously for 3 years without corrosion failure, while ordinary models need to be replaced on average every year.

Five Key Indicators for Purchasing Decisions

When selecting a diffused silicon Hesman pressure sensor, operators should focus on: 1) range matching (for example, the PT500-708 model covers 0.5-20MPa); 2) output signal type (4-20mA is more suitable for long-distance transmission); 3) medium compatibility (316L stainless steel material is required for highly corrosive environments); 4) certification standards (products certified by CE/ATEX are safer); 5) manufacturer's technical strength. As a high-tech enterprise, Xi'an Shenghongchuang uses imported diffused silicon chips in its PTB-PTB203 and other series products, and provides on-site calibration services, which is relatively rare among domestic manufacturers.

Common Usage Misconceptions and Solutions

FAQ data show that about 35% of PT-C transmitter failures are caused by improper installation. For example, when using threaded installation in hydraulic systems, failure to install a pulse damper will lead to sensor overload (the pressure peak should be controlled at ≤150%FS). In addition, note that: 1) avoid directly using flange-type structures in media prone to crystallization; 2) when using 24VDC power supply, a surge protector should be configured; 3) regularly check zero-point drift (calibration is recommended every 6 months). For special working conditions such as high-temperature and high-pressure environments, alternative solutions such as the PMP-PMP1400 model with heat sink design may be considered.

Why Choose Our Professional Services

Xi'an Shenghongchuang Instrument Co., Ltd. has been rooted in Xixian New Area for 15 years and owns a proprietary diffused silicon sensor production line. We provide: 1) free working condition analysis and selection services; 2) a 72-hour rapid response mechanism; 3) full-range test reports compliant with the GB/T17614-2015 standard. Whether it is the PT-C pressure transmitter or domestic liquid level transmitter umd-99, all enjoy an ultra-long 3-year warranty. Click online consultation to obtain an exclusive solution, and let our professional technical team optimize the overall cost of your flow control system.