A
Etching tongs
B
Connection - to
magnet
C
Connection - to
anode socket
D
Cotton wool ball
E
Magnet
Procedure
1.
Use the magnet supplied with the machine to connect the anode to the sample.
Use a clamping kit for non-magnetic samples (option).
2.
Place the connector of the external etching kit in the socket marked
Anode
.
3.
Adjust the settings for external etching, voltage and time.
4.
Use the pair of tongs to grasp a ball of cotton wool.
5.
Dip the ball of cotton wool in a suitable electrolyte (e.g. 10% oxalic acid for
stainless steel).
6.
Hold the tongs with the ball of cotton wool against the surface you wish to etch.
7.
Do not start unless the tongs are held against the surface.
8.
Press
Start
to begin the polishing/etching process.
9.
To swab the specimen surface with the cotton wool, gently move the cotton wool
back and forth to reduce build-up of heat.
10. When the preset time has elapsed, etching stops automatically.
11. Clean the polished spot with water/alcohol and dry it carefully.
7
Configuration
You can adjust a number of settings and parameters.
1.
From the
Main menu
select
Configuration
.
2.
From the
Configuration
menu, select:
–
Electrolyte configuration
. See
40
MoviPol-5
7 Configuration
