A sensitive and accurate tool for field measurement of
susceptibility of outcropping rocks, drill cores or rock samples
FEATURES
- HIGH SENSITIVITY 1 x 10-7 SI UNITS
The sensitivity is
100 times better than the competitive instruments. - SMALL SIZE AND LOW WEIGHT
The SM-30 is truly shirt pocket-sized
instrument. With dimension 100 x 65 x 25 mm and weight 0.180 kg. SM-30
outperforms competitors 3 times. - LOW NOISE
Thanks to sophisticated signal processing the noise
induced in pick-up coil is suppressed well under resolution 1 x 10-7
SI units. - DEEP PENETRATION OF THE SIGNAL
The sensor design enables to get 90
% of its signal from the first 20 mm of the rock. This feature allows more
accurate readings on uneven surfaces of all rock types. - SIMPLE OPERATION
Auto-ranging and three-button control makes the
meter the easiest to operate by one hand only. Internal memory can store 250
readings. - WARRANTY
One-year warranty is included in the price. We offer 48
hours turnaround support and repair service for any instrument sent from any
location worldwide. Subsequent customer support is provided.
GENERAL
The SM-30 is 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 like limestone, quartz and also water.
The SM-30 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
251th value (the last measured one) is automatically displayed after SM-30 is
switched on. If no button is pressed for 3 minutes, the instrument switches off
automatically. The SM-30 has a beeper indicating intervals in which the
information from the rock is picked-up.
The SM-30 is powered from two coin lithium batteries CR2430. If the instruments
is not used too extensively, the batteries may last for years thanks to their
low self-discharge.
SENSOR
The SM-30 has 9 kHz LC oscillator with a large size pick-up coil as a sensor.
The oscillation frequency is measured when
The SM-30 offers four measuring modes. Three of them compensate the linear
part of the thermal drift.
The large number of the memory registers (250) is useful 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.
SPECIFICATION
SENSITIVITY |
1 x 10-7 SI units |
OPERATING FREQUENCY |
9 kHz |
MEASUREMENT TIME |
Less than 5 s |
DIGITAL DISPLAY |
4 digits LCD |
CONTROLS |
3 push buttons |
PICK-UP COIL |
50 mm in diameter |
OPERATING TEMPERATURE |
-20°C to 50°C |
BATTERY |
2 lithium CR2430 |
BATTERY LIFE |
Approx. 80 hrs |
DIMENSIONS |
100 x 65 x 25 mm |
WEIGHT |
0.180 kg |
PC INTERFACE |
RS232C |
STANDARD ACCESSORIES |
operating manual, RS232 cable, PC software for data
transmission and for external control. |
GRAPH OF THE STABILITY

|
Noise of the SM-30
The measuring by SM-30 is done in
15 second intervals. Measured data is transmitted to the computer with the
resolution 1 x 10-8 SI units. The test was done with the programmer
SM-30w, which is included in standard supply accessories.
|
USING THE SM-30
|

|
|
|