1、 Core parameters and basic information of the product

SJ-FC04The type verification device is independently developed and produced by Shuojia Electronics (Hefei), with a reference price of888Yuan, supports a minimum order per unit, and the specific transaction price is subject to the contract agreement. This device is specifically designed for the calibration of dust measuring instruments and is suitable for dust concentration monitoring scenarios such as coal mines, cement plants, and metal processing. It can effectively verify key performance indicators such as linearity, repeatability, and stability of the instrument.

2、 Technical principles and calibration logic

The device adopts standard dust generation and concentration comparison technology, and simulates different concentration environments by precisely controlling the amount of dust generated. The tested instrument is synchronously measured with the standard detection module, and the system automatically compares the two data to generate a calibration curve. Its core advantages lie in:

Wide concentration range coverage: supported0-1000mg/m³The dust concentration calibration covers the needs of most industrial scenarios.

Multi parameter verification capability: It can calibrate the zero drift, range error, and response time of the instrument simultaneously, ensuring full range accuracy.

Dynamic compensation algorithm: Built in temperature and humidity compensation modules eliminate the interference of environmental factors on calibration results.

3、 Functional features and operational advantages

（1） Intelligent calibration process

Equipment configuration7Inch touch screen, supports one click start of calibration program. The system automatically completes the entire process of dust generation, concentration stabilization, data collection, and report generation, reducing the single calibration time to15Minutes, efficiency improved compared to traditional methods60%.

（2） Data traceability and compliance

Built in storage module capable of recording500Group calibration data, supportsUSBExport and cloud backup. The calibration report complies withGB/T 17219-2018The Verification Regulations for Dust Concentration Measuring Instruments meet the requirements ofISO 9001Quality management system requirements.

（3） Dust prevention and safety design

adoptIP54The protective shell effectively blocks dust intrusion. The internal circuit board undergoes a three proof treatment (moisture-proof, anti salt spray, anti mold) to ensure long-term stable operation in harsh environments such as coal mines and metallurgy.

4、 Typical application scenarios

（1） Calibration of Coal Mine Dust Monitoring System

In the case of a large coal mine,SJ-FC04Regarding underground workGCG1000Perform quarterly calibration of the dust concentration sensor. through simulation50-800mg/m³The concentration of coal dust was found to be3The measurement range error of the sensor exceeds the standard, and after adjustment, the deviation between the monitoring data and the weighing method result is±18%drop to±5%.

（2） Cement plant emission monitoring and verification

A certain cement plant uses this device toCEMSThe dust detection module in the system undergoes annual calibration. The calibration results show that200-1000mg/m³In the high concentration range, the response time delay of the original instrument is up to12Seconds, shortened through parameter optimization to3Second, satisfiedHJ 76-2017Standard requirements.

（3） Laboratory standard source construction

At occupational health testing institutions,SJ-FC04As a secondary standard source, used for calibrating portable dust meters. Compared with the first level standard source of China National Institute of Metrology, its expanded uncertainty reaches1.5%（k=2）, achieveCNASAccreditation laboratory requirements.

5、 Maintenance and after-sales service

The device adopts a modular design, and core components such as dust generation units and detection sensors support rapid replacement. Provided by Shuojia Electronics2Annual warranty service, nationwide48Hourly response. The regular maintenance package includes standard dust samples, filter membranes, and calibration software upgrades, with annual maintenance costs controlled within the equipment price8%Within.

6、 Technological Evolution Direction

The latest model has integrated IoT functions and supports the use of4G/Wi-FiUpload calibration data to the cloud platform.AIThe algorithm can automatically analyze historical calibration records, predict the trend of instrument performance degradation, and push maintenance reminders in advance.

SJ-FC04The standardized and intelligent calibration scheme of the dust measuring instrument calibration device not only reduces the measurement cost of enterprises, but also ensures the accuracy of dust monitoring data from the source, providing solid technical support for safety production and environmental governance.