Product Name: Digital Light watt calibration device 

 Product Model: SGJ100 type 

 Coal safety mark No.: MFA060011 

 Description: 
 The product uses a rotary piston pressure pumps, high-sensitivity micro-pressure sensors, pressure regulators, stability, high precision. Double four digital display, cleared and system calibration automatically by manipulating the layout, with the upper limit of alarm and field parameter settings, display and intuitive and easy to operate. Photoelectric isolation technology, the watchdog circuit and software filtering, anti-jamming measures to ensure the reliable operation of the instrument. The instrument is mainly used for standard testing (0 to 10)% of CH4 (0-100)% of CH4 light interference methane determination, also applies to the standard pressure source to provide a variety of micro-pressure measurement instrumentation. 

 Product characteristics and uses: 
 Precession piston pressure pumps SGJ100 digital light watt calibration device (hereinafter referred to as instruments), high-sensitivity micro-pressure sensor, a pressure regulator stability, high test accuracy, the instrument double four digital display clear zero and the system calibration is carried out automatically through the operation panel, has an independent upper limit alarm and field parameter settings, the display is clear, intuitive, easy to operate, simple. The instrument uses optical isolation technology, the watchdog circuit and software filtering, anti-jamming measures to ensure the reliable operation of the instrument. The instrument is mainly used (0 to 10)% CH4, (0 to 100)% of CH4 optical interference of methane detector calibration test standards also apply to a variety of micro-pressure (0 ≤ 7 ≤ 60) kPa, determination of instrument source of stress. 

 How it works: 
 Instrument the application of pressure diffusion silicon to convert the electrical signal principle. Micro-pressure generated by the pressure pump is connected with the sensor connected to the electrical signals generated in the sensor compression after processing circuit controlled by a microprocessor programmed through the digital display pressure value and pressure output connector output. 
 Applied to the detection optical interference methane measuring, testing the tightness or the indicated value under the pressure of the instrument, with reference to the pressure of the instrument (or standard) / methane control table, the tested instrument detected the spectral shift of the measured instrument The basic error. 

 The main technical indicators: 

 The main technical indicators 
 Measuring range (0 to 10)% CH4, the pressure range (0 to 7) kPa, 
 (0 to 100)% of CH4 pressure range (0 to 60) kPa 
 Measurement accuracy (0 to 7) kPa, the error is ≤ ± 8Pa 
 (0 to 60) kPa, the error is ≤ ± 80Pa 
 Power Voltage 220V/50Hz 
 Dimensions 310 × 223 × 317mm 
 Weight 7.6kg