SM-30 magnetic susceptibility meter 
 [Applications]: 
 SM-30 magnetic susceptibility meter is widely used in geography and geology and the unique sensitivity for the 10-7SI; particularly used in the field of geological exploration and rapid laboratory analysis of rock core samples for analysis and classification. Can measure the paramagnetic, diamagnetic and ferromagnetic rock nuances and accurately gives the magnetic susceptibility. 
 [Instrument characteristics: ■ small, into a shirt pocket, light weight, more novel, more accurate; ■ use of traditional sensors and signal processing methods to ensure that the instrument in a leading position; ■ six measurement mode in working condition switching: two basic modes, the two compensation mode, a scan mode, an average mode; ■ automatically adjust the measurement, a simple three-button control, one-hand operation, respectively, for measurement, storage and archiving. Other operations can use a computer, such as is given to measuring point storage of measurement data for further processing; ■ lithium battery and automatic shutdown function with the long-term work, can not change the battery case. 
 Technical indicators: ■ Sensitivity :10-7 the SI units; ■ operating frequency: 8 Khz; ■ Measuring time: no longer than 5 seconds; ■ Digital Display: 4-digit LCD; ■ control: 3 control keys; ■ measurement Range: 0.000 to 999 × 1/1000SIunits automatically adjust the measuring range; ■ Memory: 250 measurements, more memory can be attached to the computer; ■ Sensor: hollow coil + 8 KHz, LC oscillator, a diameter of 50 mm. Available in 20 mm within 90% of the signal; ■ Battery: two 3V lithium battery CR2430 (normal working hours for 80 hours); ■ Size: 100 × 65 × 25 mm; ■ Operating temperature: - 20 ℃ to +50 ° C; ■ Weight: 180 g; ■ Environment: humidity can reach 100%, the rain type; ■ PC Interface: RS-232C. 
 Standard configuration: holster, operation manual, RS-232 cable, PC software, data transmission, computer processing software.