The SM30 is a small magnetic susceptibility meter. Thanks to the high sensitivity we can measure sediments and rocks with extremely low level of magnetic susceptibility. In addition, we can distinctly measure diamagnetic materials such as limestone, qartz and also water.
The SM30 is controlled by three push buttons. One of them serves to save up to 250 measured values into nonvolatile memory and to recall them later. The last measured value is automatically displayed after SM30 is switched on. If no button is pressed for 3 minutes, the instrument switches off automatically. The SM30 has aﾠbeeper indicating intervals in which the information from the rock is picked-up.
The SM30 is powered from two coin lithium batteries CR2430. If the instrument is not used too extensively, the batteries may last for years thanks to their low self-discharge.
The SM30 has 8 kHz LC oscilator with aﾠlarge size pick-up coil as aﾠsensor. The oscilation frequency isﾠmeasured when
The SM30 offers six measuring modes. Four of them compensate for linear part of the thermal drift.
The large number of the memory registers (250) is used especially when scanning mode is used.
Though the instrument is small, the pick-up coil is large enough in diameter to measure sufficiently high volume.
NOISE AND THERMAL SHOCK TEST
Each graph has 100 values, 4meas./min. No sample, no movement with the instrument. Test software supplied with the instrument.
1×10-7 SI Units
Less than 5s
4 digits LCD
3 push buttons
56 mm in diameter
-20 °C to 50 °C
2 lithium CR2430
Approx 80 hrs