AGICO PUMA User manual

PUMA
IMPULSE MAGNETIZER
User Manual
Version 1.0.0
April 2023

PUMA – User Manual Contents
Contents
1 PUMA Introduction 1
1.1 Principleofoperation................................. 1
1.2 Instrumentdescription................................ 2
1.2.1 Technical parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.2.2 Frontandbackpanel ............................ 3
1.2.3 Coilcooling ................................... 3
1.3 Installation of the instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Instrument operation 5
2.1 Specimenhandling .................................. 5
2.1.1 Cylindrical specimen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1.2 Cubicspecimen ................................ 6
2.1.3 HolderInsertion ................................ 6
2.2 Specimen magnetization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2.1 Localmode ................................... 10
2.2.2 Remotemode ................................. 11
3 Troubleshooting 14
3.1 HardwareIndicators.................................. 14
3.2 SoftwareErrorMessages............................... 15
3.3 Fuses ............................................ 15
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PUMA – User Manual User Manual Conventions
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.
PUMA Controls Conventions
Field Software interface terms.
START Software interface buttons.
Main switch Hardware controls.
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PUMA – User Manual General Safety Instructions
General Safety Instructions
Before operating the instrument, review the following safety precautions to avoid
injury and prevent damage to this product or any products connected to it.
Service procedures should be performed by qualied personnel 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.
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PUMA – User Manual General Safety Instructions
Use Proper Power Cord! To avoid re hazard, use only the power cord spec-
ied for this product.
Check Connectors! Do not operate the instrument if all connectors are not
properly plugged.
Heavy instrument! Due to the weight of the instrument it is strongly rec-
ommended to manipulate it with assistance of another person.
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!
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. However, it is recommended to keep the shipping box
and inner foams in case of necessity to send the instrument to AGICO for
repair.
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PUMA – User Manual General Safety Instructions
Storage and Transportation
The properly wrapped instrument can be stored and transported at a tempera-
ture -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!
Instrument is heavy.
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PUMA – User Manual PUMA Introduction
1 PUMA Introduction
The PUMA is designed as a precise high eld impulse magnetizer. Inner diame-
ter of magnetization coil is 41 mm which allows to magnetize standard-sized pa-
leomagnetic specimens in any orientation. PUMA enables to impart isothermal
remanent magnetization (IRM) to specimens in the wide range of intensities of
magnetic elds from 1 mT up to 5 T. The elaborate design of the instrument pro-
vides precise setting of the pulse intensity as well as high homogeneity of the eld
over the entire specimen volume.
1.1 Principle of operation
PUMA uses the well-known principle of charging high quality foil capacitors de-
signed for pulsed discharge and then discharging them into a magnetizing coil.
The principal schematics of the instrument is shown on Fig. 1.
The control of the entire magnetization process by the microprocessor ensures
precise pulse triggering at voltage which is calculated with respect to the desired
pulse intensity and the instantaneous temperature of the magnetizing coil. Ac-
counting for the coil temperature signicantly improves the repeatability of the
eld strength. A number of safety features as well as oversized high grade electri-
cal components ensure the safety and reduce the likelihood of serious malfunction
or damage.
Figure 1: Principal schematics of the PUMA
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PUMA – User Manual Instrument description
1.2 Instrument description
1.2.1 Technical parameters
• Dimensions: width×height×depth: 715×435×500 mm (28.2×17.1×19.7 inch).
• Mass: 78 kg (172 lbs).
• Power requirements: 230 V, 10 A or 100-115 V, 20 A
• Magnetic eld intensity range: 1–5000 mT.
• Pulse duration: ~8 ms. See. Fig. 2 for denition.
• Field intensity precision: range 1–20 mT ±1mT, range 21–5000 mT ±5%.
• Field homogeneity: better than 97 % over volume of the specimen.
• Inner coil diameter: 41 mm.
• Specimen size:
–Cylinder: dia 25.4 mm (+0.5 mm,-1 mm), length 22 mm (+2 mm, -10 mm).
–Cube: edge of 20 mm or 23 mm.
Figure 2: Typical pulse waveform
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PUMA – User Manual Instrument description
1.2.2 Front and back panel
All instrument controls are located on the front panel (see. Fig. 3). These are the
main switch,set eld dial for setting the desired eld strength, start button,dis-
play, sample holder lock and magnetizing coil. Sockets for the power cord and
USB-B cable are located on the rear panel.
Figure 3: Front panel of the PUMA Impulse Magnetizer
1.2.3 Coil cooling
Magnetization coil temperature increases during the high intensity pulses, espe-
cially if eld is higher than 2 T. Active cooling of the coil is provided by four fans
on the left and rear of the device. The fans start automatically when the coil tem-
perature is above 40 ◦C and turn off when the temperature is below 35◦C. If the
coil temperature exceeds 90◦C, operation of the instrument is restricted until the
temperature drops below 75◦C.
Warning Make sure that the ventilation holes are always free with sufcient
air access!
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PUMA – User Manual Installation of the instrument
1.3 Installation of the instrument
After unpacking, place the unit on a sturdy wooden table with a minimum top
size of 60x60 cm. Make sure that the fan outlets on the back and left side of the
PUMA are clear. Maintain a distance of at least 15 cm between the fan outlets and
any obstruction to allow sufcient air circulation and to ensure adequate cooling
of the magnetizing coil.
If you want to control the instrument using the supplied software, we recom-
mend installing the PUMA software before connecting the magnetiser to the com-
puter for the rst time. Then plug the USB cable and mains cord into the respective
connectors. Make sure to connect the power cable to the correct power supply
voltage. Connect the USB cable to the computer (if you want to use the PUMA
software) and turn on the main switch. The PUMA pulse magnetizer is now ready
for use.
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PUMA – User Manual Instrument operation
2 Instrument operation
2.1 Specimen handling
2.1.1 Cylindrical specimen
Two cylindrical specimen holders are supplied with the instrument, see Fig. 4.
Figure 4: Cylindrical specimen holders
Figure 5: Proper orientation of the cylindrical specimen inside the shell
• Holder Ais one-piece holder for magnetization of cylindrical specimens in the
principal specimen axes.
• Holder Bconsists of two pieces (the actual holder and the specimen shell).
This design allows magnetization of cylindrical specimens in eighteen direc-
tions (see Tab. 1and Fig. 8), a certain sequence of which is necessary to mea-
sure the anisotropy of isothermal magnetic remanence. When inserting the
specimen into the shell make sure that it is oriented with respect to the ref-
erence mark as shown in Fig. 5 and the screw on the side of the shell is tight
sufciently to prevent the specimen from moving.
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PUMA – User Manual Specimen handling
2.1.2 Cubic specimen
Two holders for cubic specimens differ only in their dimensions – 20 or 23 mm
cubes, see Fig. 6. The positioning of the specimen with respect to the 18 direction
design is shown in Fig. 9
Figure 6: Cubic specimen holder
2.1.3 Holder Insertion
When specimen is correctly xed inside the holder, the holder can be inserted into
the magnetizing coil. Push the holder lock to the right and slide the specimen
holder into the coil. Then release the lock. Make sure that the lock pin slides into
the small cavity on the side of the specimen holder. It safely locks the holder with
specimen in the correct position inside the coil.
Warning: It is necessary to place the locking pin inside the cavity on the
specimen holder.If the lock is in a different position, the pulse cannot be
triggered.
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PUMA – User Manual Specimen handling
User mode Principal
axes A-mode B-mode C-mode D-mode P-mode Direction
U1 +x-axis C1 D1 P3 0/0
U2 –x-axis C2 180/0
U3 +y-axis C3 D2 P8 90/0
U4 –y-axis C4 270/0
U5 +z-axis C5 D3 P13 0/90
U6 –z-axis C6 0/–90
U7 A1 B1 P2 45/0
U8 A2 P5 225/0
U9 A3 B2 P4 315/0
U10 A4 P1 135/0
U11 A5 B3 P7 90/45
U12 A6 P10 270/–45
U13 A7 B4 P9 90/–45
U14 A8 P6 270/45
U15 A9 B5 P12 0/45
U16 A10 P15 180/–45
U17 A11 B6 P14 180/45
U18 A12 P11 0/–45
Table 1: A scheme of eighteen magnetizing directions with a reference to the magne-
tizing modes necessary to measure the anisotropy of isothermal magnetic remanence.
Directions are presented in specimen coordinate system as declination / inclination.
Each pair represents a set of antipodal directions.
Figure 7: Specimen marking convention for cylindric and cubic specimens, right-
handed coordinate system. Single arrow represents the x-axis of the specimen.
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PUMA – User Manual Specimen handling
Figure 8: 18 orientations of the cylindrical specimen
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PUMA – User Manual Specimen handling
Figure 9: 18 orientations of the cubic specimen
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PUMA – User Manual Specimen magnetization
2.2 Specimen magnetization
PUMA can be operated directly in the local mode or in remote mode using a PC
connected via USB, which brings additional user comfort as well as possibility of
more detailed setting of the pulse intensity. Sharing of the set and measured value
of the magnetization eld with REMA6 software, if running simultaneously on the
same PC, is another benet. Prior to the work in both modes make sure that the
mains cord is properly connected and switch on the mains switch on the front
panel. The instrument is initialized and several self-tests are executed. PUMA is
ready for operation when the text Hs=1 T is shown on the display and the LED on
the start button turns green.
2.2.1 Local mode
After successful initialization of the PUMA, the required intensity of the magnetic
eld pulse can be set by turning the set eld dial. Clockwise turning increases
the requested peak eld value, while counterclockwise turning decreases it in the
increments shown in Tab. 2.
Field range [mT] Increment [mT]
1–20 1
21–50 5
51–200 10
201–500 20
501–2000 50
2001–5000 100
Table 2: The increments of the required eld when using the set eld dial.
Figure 10: Typical display screen after the pulse. Hs is requested (set) eld, Hm is mea-
sured eld and Tis coil temperature after the pulse in degrees Celsius.
Make sure that specimen is properly mounted in the respective holder and
holder is inside the coil with holder lock in correct position. To begin magneti-
zation process push the start button.Start button turns red and charging of the
capacitors begins. The charging can be monitored on the display. After reach-
ing the required capacitor charge, the pulse is automatically triggered. The actual
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PUMA – User Manual Specimen magnetization
value of the pulse intensity (Hm) is measured and shown on the display as well as
the current temperature of the coil (T) see Fig. 10.
Display adjustment The brightness and contrast of the display can be adjusted
by following procedure:
• Switch ON PUMA.
• Press start button and hold it for approx. 3 seconds.
• PUMA display shows Brightness or Contrast adjustment mode. To switch be-
tween Brightness/Contrast adjustment mode shortly press start button.
• Adjust Brightness/Contrast using set eld dial
• To save current setting of the display and return back to normal operation
press start button and hold it for approx. 3 seconds.
2.2.2 Remote mode
Software installation
The installation of the complimentary MS Windows ®software is straightforward:
run installation le PUMA_install.exe, press OK buttons and software
will be installed into directory C:\AGICO\PUMA.
Software activation
Make sure that the PUMA is switched on and interconnected with PC via USB
cable. Then run the PUMA software. Press ACTIVATION button on the main
screen (Fig. 11) and the activation routine with the pop-up window ACTIVATION
(Fig. 12) is launched. The successful activation as shown in Fig. 12A. In this case
PUMA is connected via COM4 and rmware version is 1.0 released on March 2023.
Press OK to return to main screen. The unsuccessful activation result
is shown in Fig. 12B, in this case check if the PUMA is switched on and USB cable is
properly connected and the press RETRY to try again.
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PUMA – User Manual Specimen magnetization
Figure 11: The main screen of the PUMA software.
Figure 12: The activation window of the PUMA software. a) successful activation, b)
unsuccessful activation of the instrument.
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