Introduction

In the field of industrial automation，authenticity identification of the YM-110 pressure transmitter is critical。As a core product of Xi'an Shenghongchuang Instruments Co., Ltd.，the original factory diffused silicon sensor is directly related to measurement accuracy and equipment service life。This article will reveal 5 key identification tips to help users and technical evaluation personnel quickly identify genuine products and ensure the reliability of pressure measurement data。

1. Appearance Details：Identify Original Factory Quality Through Workmanship

The housing of the genuine YM-110 pressure transmitter adopts 316/304 stainless steel integrated molding technology，with uniform welds and no burrs。Focus on checking the following details：
• Laser marking clarity：The original factory marking（including model YM-110，serial number）should feature laser engraving with 0.2mm accuracy，and should have a raised and recessed tactile feel
• Interface thread：M20×1.5 or G1/4 male thread must comply with ISO 228 standards，while imitations often have thread misalignment or sealing surface defects
• Cable outlet：The IP65-rated aviation plug or four-core shielded cable interface should have a silicone sealing ring，while imitations mostly use cheap rubber parts

Key Points for Technical Evaluation

It is recommended to compare the workmanship standards of the Domestic High-Temperature Pressure Transmitter PST-HND Diffused Silicon 2088 Pressure Sensor，which also adopts a 316L stainless steel housing and laser traceability marking，and can be used as a reference benchmark for workmanship。

2. Electrical Performance Test：Verification of Key Parameters

Counterfeit and inferior products can be quickly screened through basic tests：

Note：The test must be conducted in an environment of 25±2℃，using a standard ammeter with an accuracy of ≥0.1 class。For similar 0.25 class accuracy products such as the PST-HND transmitter，the temperature drift should be ≤±0.05%FS/℃。

3. Sensor Chip Identification：Core Verification of Diffused Silicon

The original factory YM-110 uses a monocrystalline silicon piezoresistive sensor chip，which can be verified in the following ways：
• X-ray inspection：The genuine chip presents a regular rectangular arrangement，while imitations mostly use thick-film circuits
• Step response test：When the input pressure changes in a step，the rise time of the original factory product is ≤5ms（reaching 90%FS）
• Temperature test：Within the range of -20~85℃，zero-point and span drift should meet the technical specification of ≤±0.1%FS

4. Supporting Document Traceability：Identify Authenticity Through Certificates

A genuine product must include three key documents：
1. Factory calibration certificate（with CMA mark）
2. Material composition report（316/304 stainless steel material certificate）
3. Anti-counterfeiting query code（verifiable on the official website）
Special note：The product serial number on the certificate must be consistent with the laser engraving on the body，and the calibration date should be within the warranty period。

5. Long-Term Stability Evaluation：Simulated Operating Condition Test

A 72-hour continuous test is recommended：
• Cyclic pressure test：Cycle 100,000 times between 0~100% range at a frequency of 1Hz，and the output fluctuation should be ＜±0.1%FS
• Temperature cycling test：After the -30~85℃ temperature alternating test，zero-point drift should be ≤0.15%FS
• Long-term power-on test：Continuous operation under 24V power supply，with signal fluctuation range ≤±0.05mA

Summary and Recommendations

For critical scenarios such as hydraulic control and power plant inspection，it is recommended to prioritize third-party certified products such as the Domestic High-Temperature Pressure Transmitter PST-HND。Xi'an Shenghongchuang Instruments Co., Ltd. provides a full range of technical verification services，including：
• Free sample performance testing
• On-site metrological calibration support
• Customized solution design

If you need the original factory identification guide for the YM-110 pressure transmitter or technical consultation，please contact our engineering team immediately。