Bartington Susceptibility/Temperature System
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Bartington Susceptibility/Temperature System
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This system is designed for the measurement of the magnetic susceptibility of 2.5ml samples over the temperature range -200°C to +900°C. It is used in the investigation of magnetic mineralogy and grain size and for the determination of Curie transition temperatures. |
MS2W - Water cooled sensor with integral electronics and excellent temperature stability.
MS2WF - Furnace for high temperature measurements. Low temperature measurements can be obtained by cooling the specimen in liquid nitrogen and taking measurements during return to the ambient temperature.
MS2WFP - Power supply for the furnace with RS232 serial interface for computer output.
GEOLABSOFT - Software collects and plots susceptibility values over the temperature range of interest.
| Display - x1 range x0.1 range |
1-9999 0.1-999.9 |
| Display exponent - volume specific mass specific |
10^-6 CGS or 10^-5 SI 10^-6 CGS or 10^-8 SI |
| Temperature range |
-10°C to +40°C |
| Batteries |
rechargeable Nickel/Cadmium |
| RS232 interface | baud rate 1200 |
| Dimensions |
255 x 158 x 50mm |
| Enclosure |
high impact ABS |
| Weight |
1.3kg |
| Accessories |
Instrument stand Mains adaptor/battery charger - 220V or 110V as requested |
This water jacketed sensor with integral electronics has a 30mm diameter sample cavity. It can be used in conjunction with the MS2 meter and a non-magnetic type T thermocouple (Cu/Cu-Ni) for measurements on 10 ml cylindrical samples over the temperature range -200°C to room temperature.
When used in conjunction with MS2WF furnace, type S (Pt/Pt-Rh) thermocouple and MS2WFP power supply, measurements can be made on 2.5ml cylindrical samples from room temperature to +900°C.
A water jacket thermally isolates the electronics from the sample cavity. Measurement sensitivity is 1 x 10^-6 CGS for a 10ml sample; this is reduced by a factor of 4 for a 2.5ml sample.
| Calibration accuracy |
1% (calibrated for 10ml sample) |
| Drift during measurement |
<2 x 10^-6 CGS/hour with 2
litre/minute water flow |
| Operating frequency |
0.696kHz |
| Measurement period |
1.9 seconds on 1.0 range |
| 19 seconds on 0.1 range | |
| External dimensions |
255 x 100 x 65mm |
| Internal diameter |
30mm |
| Weight |
0.85kg |
This furnace is installed inside the cavity of the water jacketed sensor to enable samples to be measured at temperatures to 900°C. The non-inductively wound platinum heating element on a quartz cylinder ensures uniform heating of the sample and insulation reduces the maximum external temperature to around 100°C.
A digital panel meter installed in the base of the furnace displays the sample temperature to a resolution of 1°C when supplied with a signal from the Type S (Pt/Pt-Rh) or Type T (Cu/Cu-Ni) thermocouple. The sample temperature is also available in the form of an analog signal.
A retort stand is provided for easy mounting of the MS2W sensor.
| Weight |
2kg |
| Overall dimensions |
350 x 235 x 135mm |
| Heating cavity |
17mm internal diameter x 15mm useable height |
| Quartz vial |
12mm internal diameter |
This unit supplies power to the furnace type MS2WF ensuring highly reproducible sample heating. The sample temperature can be increased or decreased with a linear ramp or maintained at its present level, using manual controls.
| Weight |
7kg |
| Dimensions |
317 x 210 x 165mm |
Data are stored on disc for later examination and can be printed in a graphical or tabular format. For detailed examination, the user can "zoom" in on a particular area of the graph. The software is supplied on a 3½" disc.
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