AGICO MFK2-FA User manual

MFK2-FA / MFK2-FB
THREE FREQUENCY KAPPABRIDGES FOR MEASUREMENTS OF
MAGNETIC SUSCEPTIBILITY
User Manual
Version 1.2
September 2022

MFK2 – User Manual Contents
Contents
1 MFK2 Introduction 1
1.1 MainFeatures ...................................... 1
1.2 MFK2versions ...................................... 1
1.2.1 MFK2-FA ..................................... 1
1.2.2 MFK2-FB ..................................... 2
1.3 MeasuringPrinciple .................................. 2
1.4 Data acquisition software SAFYR7 . . . . . . . . . . . . . . . . . . . . . . . . 2
1.5 TechnicalSpecications ............................... 3
1.6 Specimens to be measured . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 MFK2 accessories and attachments 5
2.1 Standard set of accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Spare parts and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 3DRotator......................................... 8
2.4 CS4 – High Temperature Furnace Apparatus . . . . . . . . . . . . . . . . . 9
2.5 CS-L – Low Temperature Cryostat Apparatus . . . . . . . . . . . . . . . . . 10
3 Installation Procedures 11
3.1 ChoosingthePlace................................... 11
3.2 Interconnection of Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Main Switch and Main Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3.4 Testing the Magnetic Environment . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Measurements 17
4.1 Operationbasics .................................... 17
4.1.1 Switching ON and OFF the instrument . . . . . . . . . . . . . . . . . 17
4.1.2 Measurements with manual holders . . . . . . . . . . . . . . . . . . 17
4.1.3 Measurements with rotators . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2 Calibration ........................................ 22
4.2.1 Calibration with manual holder . . . . . . . . . . . . . . . . . . . . . . 22
4.2.2 Calibration with rotators . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3 HolderCorrection.................................... 23
4.3.1 Holder Correction of the manual holders . . . . . . . . . . . . . . . 23
4.3.2 Holder Correction of the rotators . . . . . . . . . . . . . . . . . . . . . 24
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MFK2 – User Manual
5 Troubleshooting and Maintenance 25
5.1 Troubleshooting..................................... 25
5.1.1 Hardware Error Indications . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.1.2 Software Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.2 Maintenance....................................... 27
5.2.1 Cleaning the Holders and Rotator . . . . . . . . . . . . . . . . . . . . 27
5.2.2 Cleaning the Classic Rotator and Belt . . . . . . . . . . . . . . . . . 27
5.2.3 Cleaning of 3D Rotator . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5.2.4 Cleaning of Up/Down Mechanism . . . . . . . . . . . . . . . . . . . . 35
6 Appendix 39
6.1 Specimen coordinate system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
6.2 List of Magnetic Anisotropy Factors . . . . . . . . . . . . . . . . . . . . . . . . 39
6.3 Orientationparameters................................ 41
6.4 EC Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
6.5 Warranty.......................................... 44
User Manual Conventions
Prohibition symbol is used to prohibit any action which may cause a loss of
properties, damage or injury.
Warning symbol is used to draw a special attention to an important infor-
mation.
Information symbol is used to give a useful hint or tip for more comfortable
work with the instrument.
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MFK2 – User Manual
MFK2 Software Conventions
Frequency User interface terms.
200 A/m (Default values are underlined.)
START User interface buttons.
STOP
Execute|Calibration Menu Item.
[F1] Keyboard shortcuts.
Status Bar Indicators
Green Instrument is ready.
Orange Instrument in action.
Red Error or User stop.
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MFK2 – User Manual
General Safety Instructions
Before beginning of work with the instrument review the following safety precau-
tions to avoid injury and prevent damage to this product or any products con-
nected to it.
Service procedures should be performed by qualied personel only!
Do Not Operate Without Covers! To avoid electric shock or re hazard, do
not operate this product with covers or panels removed.
Do Not Operate in Wet or Damp Conditions! To avoid electric shock, do not
operate this product in wet or damp conditions.
Do Not Operate in an Explosive Atmosphere! To avoid injury or re hazard,
do not operate this product in an explosive atmosphere.
Do Not Disconnect Connectors! To avoid damage of the instrument never
disconnect any connector while the device is ON.
Do Not Operate With Suspected Failures! If you suspect there is damage to
this product, have it inspected by qualied service personnel.
Ground The Instrument! The instrument is grounded through the Protective
Earth lead of the power cord. To avoid electric shock, it is essential to connect
the earth terminal of power cord to the Protective Earth terminal before any
inputs or outputs.
Do Not Insert Anything into the Holes of Fan! Do not insert anything into
the holes of the fan to avoid damaging the instrument.
Use Proper Power Cord! To avoid re hazard, use only the power cord speci-
ed for this product.
Fasten Connectors! Do not operate the instrument if all connectors are not
properly plugged and xed by screws.
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MFK2 – User Manual
Use Proper Mains Voltage! Do not operate this product from a power source
that is outside of the specied voltage range.
Use Proper Fuses Only! Do not use fuses which are not specied by the
manufacturer. If a fuse with a different characteristics or value is used, the
protection is not effective.
Operator’s Training! Operator should be familiar with operation of the in-
strument and Safety Regulations.
Use Manufacturer’s Cables Only! Other devices can be connected to the
instrument via the appropriate cables only.
Do not drop the product and do not expose it to any major shocks!
Do not operate the product outside the power limits given in the speci-
cations!
Keep the packaging material out of the reach of children to prevent the
risk of suffocation!
The rst installation and customer training is performed exclusively by the
AGICO technician or by the authorized representative.
Unstable or highly disturbed AC power may invoke safety circuits to protect
the sensitive electronic parts by switching OFF the instrument or burning
inner fuses.
Dispose of packaging material immediately according to locally applica-
ble regulations!
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MFK2 – User Manual
Storage and Transportation
The properly wrapped instrument can be stored and transported at a temperature
-20 ◦C to + 55 ◦C and relative humidity up to 80 %. The instrument must be stored
at suitable place, free of dust and chemical evaporation. Handle with care!
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MFK2 – User Manual MFK2 Introduction
1 MFK2 Introduction
The MFK2 Kappabridges are the most sensitive commercially available laboratory
instruments for measuring magnetic susceptibility and anisotropy of magnetic sus-
ceptibility (AMS). MFK2 is updated version of well known MFK1 Kappabridge with
enhanced resistance against external disturbances, improved processing of the sig-
nal and sophisticated data acquisition. MFK series of Kappabridges allows to mea-
sure magnetic susceptibility of rock samples under three measuring frequencies -
976 HZ, 3904 Hz and 15616 Hz.
For comparison of the MFK2 (Three frequency Kappabridge) and the
KLY5 (Out-of-phase Kappabridge) please refer to http://www.agico.com/
downloads/documents/agicoprints/kappa_comp.pdf
1.1 Main Features
• Measurement of magnetic susceptibility with three different frequencies of
drive eld.
• Measurement of anisotropy of magnetic susceptibility (AMS).
• Fully automatic measurement of AMS and eld dependence of AMS, if op-
tional 3D Rotator is used (version FA).
• Automated eld variation measurement (version FA).
• Built-in interface for controlling the furnace CS4 and cryostat CSL (version FA).
• High sensitivity 20×10-9 SI (976 Hz, 400 A/m).
• Full control by computer.
• Sophisticated hardware and software diagnostics fully controlled by com-
puter.
1.2 MFK2 versions
1.2.1 MFK2-FA
MFK2-FA is three frequency Kappabridge fully equipped with Up/Down mecha-
nism and rotator for spinning specimen method of AMS measurements. Auto-
matic measurements of eld variations of bulk susceptibility and full support of
CS4 and CS-L apparatuses are present as well. MFK2-FA allows to use 3D Rotator
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MFK2 – User Manual Measuring Principle
(optional accessory), which signicantly reduces the measuring time of AMS and
simplies manual handling to just one insertion of the sample. Using of 3D Rotator
also enables fully automated measurement of eld dependence of AMS.
1.2.2 MFK2-FB
MFK2-FB is cost driven, basic version of three frequency Kappabridge for manual
measurements of AMS, bulk susceptibility and eld variations of magnetic suscep-
tibility without Up/Down mechanism, rotator and CS4 or CS-L support. To facilitate
AMS measurements magnetic susceptibility must be manually measured in 15 dif-
ferent orientations. Can be upgraded to MFK2-FA version, but such upgrade has to
be done in AGICO facility.
1.3 Measuring Principle
In principle the instrument represents a precision fully automatic inductive bridge
equipped with automatic zeroing system and automatic compensation of the ther-
mal drift of the bridge unbalance as well as an automatic switching to appropriate
measuring range.
Special diagnostics was embedded in MFK2 Kappabridges, which monitors im-
portant processes during measurement with MFK2 and also with CS4 or CS-L unit.
The instrument has no control knobs, it is fully controlled by external computer
via USB connection. The main advantage of the MFK2-FA/FB models compared to
the older Kappabridges is measurement of frequency variations of magnetic sus-
ceptibility and anisotropy of magnetic susceptibility. The auto-ranging and auto-
zeroing works over the entire measuring range. Automatic zeroing compensates
real and imaginary components, the zeroing circuits are digitally controlled by
rmware. The output signal from pick-up coils is amplied, ltered and digitized,
raw data are transferred directly to the computer which controls all the instrument
functions.
1.4 Data acquisition software SAFYR7
All functions of MFK2 Kappabridges, including temperature variations of mag-
netic susceptibility, are controlled by software SAFYR7. This software for MS Win-
dows®operating systems also performs advanced calculations of AMS tensors, eld
and temperature variation factors, separation of ferromagnetic and paramagnetic
susceptibility (from thermomagnetic curves) and so on. SAFYR7 also incorporates
viewer of resulting data les. Updated versions of SAFYR7 can be downloaded
from AGICO web pages www.agico.com for free.
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