When purchasing the SK1151-20T split-type submersible level transmitter, how to ensure that you are buying a genuine product has become the primary challenge for technical evaluators. This article shares 3 practical tips to help you quickly identify authenticity and avoid purchasing inferior products. As a professional flow control equipment manufacturer, we deeply understand the importance of genuine transmitters to industrial measurement accuracy.

I. Industry Background and Analysis of Market Disorder

In recent years, with the improvement of industrial automation, market demand for split-type submersible level transmitters has surged. According to the China Sensor Industry White Paper 2023, the annual growth rate of the level transmitter market has reached 12.5%, among which the SK1151 series accounts for 28% of the market share due to its high accuracy and stability. However, behind the market prosperity, some merchants frequently pass off inferior products as quality goods:

• Refurbished units are sold as new original factory products, with the housing repainted but internal components aged
• False parameter labeling is common, with products labeled 0.2% accuracy actually reaching only 0.5%
• Counterfeit brand markings, such as altering "SK1151" to similar lettering like "SK115I"

II. 3 Core Identification Techniques

1. Verification of the Anti-counterfeiting Identification System

The genuine SK1151-20T split-type submersible level transmitter adopts a three-layer anti-counterfeiting system:

2. Testing of Key Performance Parameters

Technical evaluators should focus on verifying the following core parameters against the requirements of the GB/T 17614-2018 standard:

1. Zero drift test: Under a 25℃ environment, the 8-hour drift should be ≤0.1%FS
2. Insulation resistance: Measured with a 500V megohmmeter, the resistance between power supply and housing should be ≥100MΩ
3. Overload capacity: Apply 150% full-scale pressure and maintain for 1 hour, with return-to-zero error ≤0.05%

3. Supplier Qualification Verification

Authorized dealers should possess the following qualification documents, and it is recommended to conduct cross-verification through the following channels:

• Brand authorization letter (must include specific models such as SK1151-33L/T)
• ISO9001 quality management system certification
• Third-party inspection reports (such as SGS, TÜV, etc.)
• Compare with the distributor list published on the official website

III. Comparative Analysis of Technical Parameters

Taking the SK1151-20T split-type submersible level transmitter as an example, there are significant differences between genuine and counterfeit products in key indicators:

IV. Why Choose Shenghongchuang Instrument

As a high-tech enterprise in Xixian New Area, we provide:

• Direct supply guarantee from the original factory: All SK1151 series products come with the original factory warranty certificate
• Technical verification service: Supports reinspection by third-party institutions, with compensation of ten times for one fake
• Customized solutions: Provide diaphragm material customization for special media (such as corrosive liquids)
• Full life-cycle management: Provide full-process technical guidance from model selection to scrapping

V. Frequently Asked Questions

Q: What are the main differences between SK1151-33T and SK1151-20T?

A: The 33T adopts a split-type structure suitable for high-temperature environments (-40~125℃), while the 20T features a compact design (-20~80℃). Both have a measurement accuracy of 0.2 grade, but the 33T has stronger overload capacity.

Q: How can I determine whether the PTB605 transmitter is compatible with my operating conditions?

A: You need to provide parameters such as medium type, temperature range, and pressure value, and our engineers will conduct a compatibility analysis for you according to the API 682 standard.