Molspin Ltd

E-Mail: molspin@molspin.com
Molspin Ltd.
Registration Number 1420212
Tel +44 (0) 191 281 0731
Fax +44 (0) 191 247 5700
Registered office
25 Castleton Grove
Newcastle on Tyne
NE2 2HD
England

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NEW - Portable Large Sample Spinner

NEW - High Field Shielded Demagnetizer

Reintroduced - VSM Nuvo MK 2

Product List
High Field Shielded Demagnetizer
The Minispin
Portable Large Sample Spinner
The Pulse Magnetizer

The Shielded Demagnetizer
A pH meter
North American Agent
More magnetic measurements
VSM Nuvo MK 2

 

 

 

 

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Shielded Demagnetizer This machine enables rocks to be demagnetized by the alternating field method. The electronically-controlled field has a peak value of up to 1000 gauss (0. 1 T) at 180 Hz. The rock sample (1 " [25.4mm dia.], up to I " long) is held in a 2-axis tumbler. The demagnetizer coil is shielded by a triple-walled mumetal bucket shield. It consumes only 700 watts, so that it may be used in hotel rooms. (Total weight: 50kg)

 

Shielded Demagnetiser

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.

PARM option

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