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Navigation News & Events NEW - High Field Shielded Demagnetizer
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The PARM option: A new Molspin device that can be added to the shielded demagnetizer allows Partial Anhysteretic Remanent Magnetization procedures to be performed. The new device is attached to the Shielded demagnetizer by way of a 5 way plug. All demagnetizers supplied after 31 March 1996 have the 5 pin socket installed. and so are PARM ready. Older demagnetizers can be modified to take the new socket. The PARM device has two 10 turn potentiometers fitted with counting dials. One of them defines the field at which the PARM field will come on, the other the field at which the PARM field goes off. This flexible system allows the place and range of the PARM field to be set anywhere on the demagnetizing cycle.
The value of the PARM field (up to one Oersted) is set on a meter. The field only comes on during the reducing phase of the demagnetizing cycle. However a switch allows the field to remain on for the whole cycle if this is desired. In this mode the PARM device becomes a standard ARM device. The ARM option: As well as the PARM device there is also an ARM attachment. This consists of the same coil as the PARM device that is placed within the demagnetizing coil and which can produce a constant field of up to one Oersted. The reversing option: The two axis tumbler normally rotates in one direction but an option
is available that allows the rotation to be reversed after a predetermined
number of rotations | ||||||||
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