4.4. Software 4.5. SI and CGS units 4.6. Range Selection 4.7. Calibration 5. MS2 Meter 5.1. Front Panel Controls 5.2 MS2 Meter Rear Panel 5.3. Rear Panel 5.4. Connecting a Sensor 5.5. Taking Measurements 5.6. Serial Interface 5.7. Internal Batteries 5.8.
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8. MS2E High Resolution Surface Scanning Sensor 8.1. General Description 8.2. Characteristics 8.3. Operating Instructions 8.4. Care of Sensor 9. MS2 Probe Handle for Use with Probes Type MS2D and MS2F 9.1. General Description 10. MS2D Probe 10.1. General Description 10.2. Calibration Notes 11.
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14. MS2K High Stability Surface Scanning Sensor 14.1. General Description 14.2. Characteristics 14.3. Operating Instructions 15. MS2/MS3 Susceptibility/Temperature System 15.1 MS2/MS3 Susceptibility Temperature System Cables 16. MS2W Water Jacketed Sensor 16.1. Calibration Note 17. MS2WF Furnace Sensor 17.1. Operation 17.2. Construction 17.3.
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BARTINGTON INSTRUMENTS 20.2. Connection to a Computer (GeoLab for Windows Software) 20.3. Sensor Orientation 20.4 Sample Insertion 20.5. High Temperature Measurements 20.6. Thermal Gradients 20.7. Low Temperature Measurements 20.8. GeoLab 21. Troubleshooting 21.1. No Push-Button Operation 21.2. Large Variations in Measured Values 21.3.
Note: Provides useful supporting information on how to make better use of your purchase. 2. Safe Use WARNING: While the MS2 meter usually runs off internal batteries, it can also be powered by mains electricity. Ensure that the unit is properly earthed at all times. When using the mains power supply, ensure that the mains adaptor is correct for the local AC mains voltage (110V or 240V).
USB interface for use in conjunction with a Windows computer or PDA. It can be used with all of the MS2 sensors in place of the MS2 meter. As it is the subject of its own operation manual (OM3227), available from the product page, it will not be discussed further here.
Any thermally induced sensor drift needs to be eliminated by occasionally obtaining a new ‘air’ value, to re-establish the zero reference. This is done by pressing the ‘Z’ button on the MS2 meter (see Front Panel Controls).
MS2K Highly repeatable measurements of the volume magnetic susceptibility of moderately smooth surfaces. The full range, specifications and functions of the sensors available for use with the MS2 meter are given in the product brochure. 4.3. Operating Environment Considerations The following environmental factors should be taken into account when using the MS2 system.
Bartsoft is the most up to date software package and can be used to operate both the MS2 and MS3 meters. Multisoft is an older software package that is only compatible with the MS2 meter. The Geolabsoft software is intended for use only with the MS2 X/T Temperature Susceptibility System.
Numerical conversion from SI to CGS units is accomplished by dividing the SI value by 4π, i.e. c /4π. The MS2 meter performs this function internally but by using the constant 0.4π to keep the numbers in a similar range of magnitude.
Batteries. 5.4. Connecting a Sensor Connect the sensor to be used to the front panel socket of the MS2 meter with the supplied 50Ω TNC-TNC cable, and switch on by selecting either SI or CGS units. Page 14 of 82...
BARTINGTON INSTRUMENTS 5.5. Taking Measurements Set the meter to the 1.0 range for the initial measurement of any sample, to establish the approximate result, before switching to the more sensitive 0.1 range. If the value of a sample is greater than 1000 then the most significant digit will not be seen if measured on the 0.1 range, leading to an apparent gross error in the result.
For reasons of economy of battery drain, the interface is restricted to operate over a maximum cable length of 50 metres. An RS-232 connecting cable is provided with the MS2 for connection to a computer via a 9-way D-type connector. No hardware handshaking is provided.
BARTINGTON INSTRUMENTS 5.7. Internal Batteries The instrument is powered by internal maintenance-free rechargeable Ni-MH batteries. Recharging can be carried out from either a mains electricity supply or a vehicle power socket. WARNING: When using the mains power supply, ensure that you are using a mains adaptor that is correct for local AC mains voltage (110V or 240V).
3. Earth lead to earth point in the upper enclosure For MS2 meters purchased prior to 1st January 2006, scrape away the wax coating over the four slotted nuts in the base of the unit and undo the nuts with a 6mm wide split screwdriver.
BARTINGTON INSTRUMENTS For units purchased after 1st January 2006, the holes are no longer filled with wax. A small Philips screwdriver must be used to release the enclosure halves. The top half of the enclosure can now be carefully lifted away from the unit.
BARTINGTON INSTRUMENTS For older units, it will be necessary to remove the two-way plug from the replacement battery, cutting each wire separately so as not to short the battery. Assemble the terminal block onto the battery wires, then reconnect being careful to connect black to black and red to red.
Before any measurements can be taken, the MS2B must be plugged into the connector on the front of the MS2 meter via a TNC-TNC cable and the MS2 should be turned on. Ensure that the sensor is not situated on or near any materials with high magnetic susceptibility or those that are electrically conductive.
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BARTINGTON INSTRUMENTS For standard 10cc samples the calibration sample, stored in the top of the sensor, should be used as a reference to find the centre point. While taking continuous measurements of the calibration sample, adjust the nylon screw with the non-magnetic adjuster tool, also located in the top of the sensor, until a maximum value is obtained.
BARTINGTON INSTRUMENTS 6.5. Preparation of Samples Natural samples will never occur in such a form that the textbook value will be obtained. For example, the material of interest may be involved in a matrix of organic material of no interest, or be suspended in water.
BARTINGTON INSTRUMENTS Note: When operated on the x0.1 range, the diamagnetic contribution (-ve sign) may become significant due to the material of the sample holder. This should be measured separately for an empty container, and the value subtracted from subsequent readings.
If the value obtained is less than 20 then the entire batch should be measured using the x0.1 measurement range on the MS2 meter. This is particularly important if the coefficient of frequency dependency is of interest.
7. MS2C Core Scanning Sensor Figure 6. MS2C core scanning sensor. Key fo Figure 6 1. TNC connector for connection to MS2 meter 7.1. General Description The MS2C sensor is a core sensor with a large aperture through which to feed the sample (See Figure 6).
BARTINGTON INSTRUMENTS 7.2. Operating Instructions Note: Select a suitable site away from any possible sources of electromagnetic interference. Note: Avoid situations where the sensor might be subject to large temperature fluctuations or direct heating by the sun’s rays. Switch on the instrument and allow ten minutes settling time before commencing measurements.
10mm depth, and also individually calibrated to compensate for temperature induced drift. The sensor connects directly to the MS2 meter via a TNC-TNC coaxial cable that can be up to 30 metres in length.
BARTINGTON INSTRUMENTS axis direction is marked on the circumference of the ceramic enclosure and the direction is also shown symbolically on the sensor label. The rectangular response permits two modes of operation. • With the long axis parallel to narrow strata, the maximum spatial sensitivity is obtained for detailed measurements.
The sensor is calibrated to read true volume susceptibility where the sample is effectively infinitely large. The value c displayed on the MS2 on the x1 and CGS range is therefore equivalent to that which would be obtained for 1cc, and is therefore equal to c x 10 CGS.
8.3.1. Connecting Up Connect the MS2E sensor to the MS2 meter via the supplied TNC-TNC coaxial cable. Select the desired operating range on the MS2 meter. After a 10 minute warm-up time, the sensor will be ready to take measurements.
BARTINGTON INSTRUMENTS Figure 10. Using a non-magnetic ruler with MS2E sensor. A non-magnetic (plastic) ruler (Figure 10) can be fixed or supported along the core to gauge the measurement interval, which might typically be 5cm. For closer measurement intervals, e.g.
6. Electronics module 9.1. General Description The MS2 probe handle is for use with the MS2D and MS2F field probes, it is not compatible with any other sensors. The handle provides the measurement electronics for the sensors, as well as giving extra reach to the user when taking measurements.
The field survey MS2D is a circular sensor, with a large effective measuring volume. It is intended for use on flat surfaces where pinpoint accuracy is not required. It is used with the MS2 probe handle and will not function without it.
3. Sensing area 11.1 General Description The MS2F probe is the second probe that is used with the MS2 probe handle. It is a point sensor, with a much smaller effective volume than the MS2D, allowing more accurate measurements over rougher surfaces. It is light and small enough to penetrate surface vegetation, or to allow...
It can be used either with the upper section of the MS2 probe handle alone (the cable can be retracted and coiled up at the top of the handle) or with the extension tube for ground level use.
Connection to the MS2 meter is via the standard TNC-TNC coaxial cable. Samples are inserted into the top of the cavity. An adjustable mechanical stop can be set to centralise the sample material within the measurement zone.
BARTINGTON INSTRUMENTS 12.2. Setting Up Choose an operating site well away from sources of electrical and radio interference. The site should also be free from magnetic materials and large non-magnetic sheets of electrically conductive material, e.g. aluminium bench tops. Note: A reasonably stable room temperature is desirable.
BARTINGTON INSTRUMENTS 0.2145 1.295 0.231 1.26 0.247 1.214 0.264 1.185 11.0 0.33 1.098 16.0 1.032 21.0 0.66 1.015 Full Multiply measured value by the correction factor. 12.5. Taking Measurements Allow circa 5 minutes settling time before taking measurements to allow the sensor to warm up.
The probe and tube have threaded couplings with waterproof seals. The sensor electronics are integrated into the probe head, which is directly connected to the MS2 meter. The connecting cable is routed through the hollow extension tubes. The sensor is supplied with cables as described in the product brochure.
4. If not already fitted, feed the cable through the threaded end of the rubber boot, and screw the boot into the extension tube. 5. Connect the cable to the MS2 meter and switch on. 13.3.2. Assembly for Deep Holes If the hole under investigation is deeper than ~1m then additional extension tubes should be added at step (3).
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13.3.3.3. Using Multisus Software Multisus software for a Windows PC simplifies use of the MS2H probe by automatically logging data from the MS2 meter and correcting readings for temperature drift. The software is provided with the meter. Note: Multisus v2.4 is needed or later for full support of the MS2H down-hole probe.
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It is possible to use the probe and meter without a PC, but all readings must be made and zero drift corrections applied by hand, as there is no logging facility within the MS2 meter. The procedure is as follows.
BARTINGTON INSTRUMENTS 5. Insert the probe into the hole so that the lowest (sensing) graduation mark is at ground level (i.e. depth = 0mm) and press 'M' to perform a reading. Hold the probe steady until the meter beeps to indicate that the reading has been taken. Record the reading against ‘depth = 0’ on your results table.
BARTINGTON INSTRUMENTS 13.5. Scaling Factors The sensor is calibrated to display volume magnetic susceptibility (c ) for a 22mm hole. For larger hole diameters, the displayed value will be lower than true c . An approximate value of c can be obtained by multiplying the displayed reading by the scale factor in Table 4.
The isotropic 25mm diameter response pattern gives good surface integration without sacrificing resolution, as shown in Figure 18. The sensor connects to the MS2 meter via the supplied TNC-TNC 1 metre length co-axial cable. Measurements are accomplished to 1 x 10 CGS in one second on the x1.0 range on the MS2...
14.3. Operating Instructions 14.3.1. Connecting Up Connect the MS2K sensor to the MS2 meter via the supplied TNC-TNC coaxial cable. Select the desired operating range on the MS2 meter and, after a few minutes warm-up time, the sensor will be ready to take measurements.
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BARTINGTON INSTRUMENTS 14.3.2. Taking Measurements The sensor should be allowed to acclimatise before taking measurements. Prior to use, always measure the calibration sample to ensure that the sensor is working correctly. The sensor is zeroed to ‘air’ by raising the sensor about 20mm above the measurement surface and pressing the 'Z' button.
BARTINGTON INSTRUMENTS 15. MS2/MS3 Susceptibility/Temperature System The measurement capability of the MS2/MS3 system can be extended to include the measurement of the magnetic susceptibility of materials as a function of temperature. There are five additional items required for this. 1. Water-jacketed sensor type MS2W: Magnetic susceptibility sensor, with special cooling and temperature compensation.
BARTINGTON INSTRUMENTS 16. MS2W Water Jacketed Sensor Figure 19. MS2W water jacketed sensor. Key to Figure 19 1. TNC axial cable connector 2. Water in 3. Water out 4. Sample cavity The MS2W has a 30mm internal diameter sample cavity. The highly stable sensing coil and the...
BARTINGTON INSTRUMENTS will also be damaged if the water flow is interrupted when the furnace is operating inside the sensor. A flow indicator is provided to be fitted in the water outlet from the sensor. WARNING: If low temperature measurements are made as suggested using liquid nitrogen, the operator must take the necessary precautions involved with using liquid nitrogen.
BARTINGTON INSTRUMENTS Key to Figure 20 1. Crucible (silica tube containing heating element) 2. Thermocouple 3. Thermocouple selector switch 4. Digital multimeter (buttons have no function) 5. Retort stand to hold MS2W sensor This furnace has been specially designed for use with the water-jacketed MS2W probe to...
Bartington Instruments is unable to advise on this latter mode of operation. The MS2WF furnace and MS2WFP power supply are connected via an 8-way cable for the transmission of data and power.
BARTINGTON INSTRUMENTS Note: The type ‘T’ thermocouple is for low temperature measurements and is not recommended for use in conjunction with the furnace. 18. Maintenance of MS2WF Furnace To maintain good magnetic hygiene and efficient heating, the plugs at the top and bottom of the furnace should be replaced when they appear to become fragile or dirty.
BARTINGTON INSTRUMENTS Caution: Do not use sharp objects as they may damage the heating element or the furnace tube. 2. Rewind the insulation from a strip of the fabric provided, 500mm x 60mm. It is necessary to burn off the binding material from the silica fabric. To do this, retain the fabric in place with...
The ramp rates can be controlled manually. 2. Routing data transmissions. Serial interface connection between the user’s computer, the MS2/MS3 meter and the digital thermometer is via this power supply unit. Page 58 of 82...
19.3. RS-232 Buffer With a computer, MS2 meter and MS2WF connected to the appropriate connectors, the RS-232 serial data between the computer, the MS2 meter and the MS2WF digital panel meter are routed through the MS2WFP. The computer transmits characters 'Z' and 'M' which are recognised by the MS2 meter, causing a zero and measure operation respectively.
Plug in the mains supply. Connect the silver shielded cable to the MS2WF, the RS232 connections to the computer and MS2/3, and the power connections to the water pump and flow meter. The connections on the MS2WFP are shown in Figure 24 below.
BARTINGTON INSTRUMENTS 20.1.1. Mains Voltage Selection All signal lines down this side All power lines down this side Figure 25. MS2WFP outline drawing and mains voltage selection. Key to Figure 25 1. PC11 6. Ammeter 2. Heatsink 7. Capacitor C2 3.
BARTINGTON INSTRUMENTS Figure 26. MS2WFP Mains voltage selector Switch. 20.1.2. Water Supply Connection The closed water cooling system supplied with a reservoir and pump should normally be used. However, in an emergency, the water supply can be derived from the relatively cool sub-surface mains supply.
BARTINGTON INSTRUMENTS Figure 28. Water cooling system for susceptibility/temperature system Key to Figure 28 1. Reservoir 6. Power supply to water pump 2. Power supply to liquid flow sensor 7. PVC tubing 3. Direction of flow from upper nipple on 8.
1200 baud, 8 data bits, no parity, and 2 stop bits. This is achieved by setting the three-way switch on the rear panel of the MS2 meter to position B. The temperature meter is pre-set to this protocol. For further information see the GeoLab operation manual.
BARTINGTON INSTRUMENTS 20.4 Sample Insertion For sample preparation see Preparation of Samples. The tweezers supplied with the equipment should be used to pick up and move the crucible containing the sample to be measured. It can then be carefully placed it into the furnace, as shown in Figure 31.
BARTINGTON INSTRUMENTS Note: Always begin with the dial set to Z, the SET/RAMP/RESET switch set to RESET, and the UP/HOLD/DOWN switch set to HOLD. Figure 33. MS2WF Thermocouple Selection Switch Figure 34. MS2WFP Control Panel Switch on the MS2WFP power supply and the water pump, and check for leaks and water flow.
BARTINGTON INSTRUMENTS Note: After resetting, the ramp begins from a temperature of 0°C. There will be a considerable delay before the ramp reaches the temperature of the sample and current starts to flow in the windings of the furnace to keep the furnace temperature at the level of the ramp.
BARTINGTON INSTRUMENTS 20.7. Low Temperature Measurements These will usually be performed using the larger sample size and without the furnace. The T thermocouple can be connected just above the toggle switch on the MS2WF furnace, shown in Figure 35, and is used for low temperature measurements.
1. Power save. If the PC is a laptop, turn off all power-saving features as they may cause the interface to close while waiting for a reading from the MS2 meter. There may be power save features in the PC and in Windows.
Receive Buffer and Transmit Buffer to Low (1). 4. MS2 Meter Settings. Check the rotary switch on the rear panel of the MS2 meter. This switch controls the serial baud rate and format of the data. Using a screwdriver, the switch should be set as follows: • for operation with Multisus2 or Bartsoft, set to position A...
BARTINGTON INSTRUMENTS Refer to the product brochure for this product’s maximum environmental, electrical and mechanical ratings. Caution: Exceeding the maximum environmental ratings may cause irreparable damage to the equipment. 23. Disposal This product should not be disposed of in domestic or municipal waste. For information about disposing of this product safely, check local regulations for disposal of electrical / electronic products.
BARTINGTON INSTRUMENTS Appendix 1. Magnetic Susceptibility of Common Rocks Timenites Hematites Magnetite Limonites Iron carbonates Serpentines Basalts Gabbros Granites Metamorphics Sediments .002 Susceptibility (CGS units) Figure A1.1. Magnetic susceptibility of common rocks Page 74 of 82 OM0408/49...
BARTINGTON INSTRUMENTS Appendix 2. Calibration Graphs for MS2C Sensor LIMIT OF C162 LIMIT OF C36 POOR RESOLUTION OVER THIS RANGE Figure A2.1. Relative response to varying core diameter within MS2C sensor. In Figure A2.1, d = core diameter and D = MS2C aperture + 8mm. The figure shows the variation...
BARTINGTON INSTRUMENTS K REL Figure A2.2. Thin section response of MS2C sensor. Figure A2.2 shows the relative (arbitrary units) response in the measured value to the horizontal displacement L of a thin discoidal section of stratum diameter d = 0.85D.
BARTINGTON INSTRUMENTS Appendix 3. Anisotropy of Magnetic Susceptibility Measurements (AMS) For accurate measurements of AMS it is necessary to use the MS2B sensor in conjunction with the AMS adapter and AMSWIN-BAR software. These are not supplied as standard with the MS2B, but can be purchased separately.
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BARTINGTON INSTRUMENTS 2. Replace the tall sample platen with the short one, and secure it in position by replacing and tightening the retaining screw. Figure A3.1e-f. Changing the MS2B platen. 3. Refer to Appendix 4 to re-adjust the Platen height in order to centre the sample within the aperture.
The platen height must be adjusted to centralise the sample within the sensor. 1. Remove the cap covering the adjustment screw and the miniature screwdriver. 2. Connect the MS2 meter to the MS2B, switch ON and perform a zero. Figure A3.1g-h. Changing the MS2B platen.
= µ - µ … (2) The MS2/3 magnetic susceptibility system relies on the principle that any changes in the permeability of a core will cause a change to the inductance of a wound inductor. The sensors operate on the principle of AC induction. Power is supplied to the oscillator circuit within the sensor, generating a low intensity alternating magnetic field.
BARTINGTON INSTRUMENTS Notes Page 81 of 82 OM0408/49...
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The copyright of this document is the property of Bartington Instruments Ltd. Bartington® is a registered trade mark of Bartington Instruments Limited in the following countries: United Kingdom, Australia, Brazil, Canada, China, European Union, India, Japan, Norway and the...
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