Factors Affecting the Price of the DMK331 Pressure Transmitter and Technical Evaluation

The price of the DMK331 pressure transmitter is affected by multiple factors, including the performance of the diffused silicon sensor, measuring range, and manufacturer services. This article provides technical evaluators with an in-depth analysis of the quotation differences among models such as HD-HD316 and PTJ206, compares the industrial advantages of MC-AS and the cost performance of DW803, helping you accurately procure high-precision flow control equipment.

1. The Impact of Diffused Silicon Sensor Core Technology on Price

The core of a diffused silicon pressure sensor lies in the manufacturing process of its sensitive element. Taking the DMK331-250-1002-5-100-F00-1-1-2-000 model as an example, the single-crystal silicon chip it uses forms a piezoresistive effect through high-temperature diffusion doping, and this process directly determines the measurement accuracy and stability of the sensor. The price differences among different models such as HD-HD316 and PTJ-PTJ206 are mainly reflected in:

• Temperature drift coefficient: The MC-AS series can achieve a temperature drift of ±0.05%FS/℃, which is 30% lower than conventional models
• Overload capacity: DW-DW801 uses a 316 stainless steel diaphragm and can withstand overload up to 2 times full scale
• Signal processing: PTX-PTX510 has a built-in digital compensation circuit, reducing the cost of peripheral components

For example, the domestically produced EVT-100F high-temperature pressure transmitter diffused silicon pressure sensor uses a laser calibration process to control the overall error at Class 0.25, and products of this high specification are usually priced 15-20% higher than standard models.

2. Cost Differences in Measuring Range and Pressure Connection Methods

When evaluating models such as HZ-HZ950 and YMC-1N-L, special attention should be paid to range specifications:

Special interfaces such as G1/2 male thread increase the cost by 5-8% compared with the standard M20×1.5, while EVT-100F offers multiple pressure connection options (M12×1, G1/4, etc.) to adapt to different piping systems. This flexibility is particularly critical in scenarios such as petrochemical and constant-pressure water supply applications.

3. Premium Analysis Brought by Industrial-Grade Features

The advantageous features of the MC-AS pressure transmitter demonstrate their value in harsh environments:

1. Media compatibility: 316 stainless steel wetted materials can measure corrosive gases/liquids
2. Environmental adaptability: The medium temperature range of -30～+85℃ covers most industrial scenarios
3. Dynamic response: A rise time of ≤5 milliseconds meets rapid control requirements

These features make industrial models such as PTX-PTX510 25-35% more expensive than general-purpose models, but they can reduce overall maintenance costs in critical systems such as turbo-generator units and locomotive braking.

Procurement Decision Recommendations and Technical Summary

Model selection recommendations for different application scenarios:

• High cost-performance solution: DW-DW803 is suitable for conventional hydraulic systems, with annual stability of ±0.2%FS
• Precision control requirements: Choose the MC-AS series, whose Class 0.25 accuracy meets laboratory calibration requirements
• Extreme environment applications: Refer to the high-temperature design of EVT-100F, with medium temperature up to +85℃

It is recommended to require the manufacturer to provide a complete temperature drift test report during technical evaluation, and verify whether the range adjustment span (±20%) meets the system redundancy requirements. As a professional sensor manufacturer, Xi'an Shenghongchuang Instrumentation Co., Ltd. can provide full-process technical support from model selection to installation.

Contact our engineering team now to obtain detailed technical parameters and tiered quotation plans for models such as HD-HD316 and PTJ206, and let us customize the optimal flow control solution for you.