This portable etching unit comes two ways.
E-FM-ME1 = META-ETCH-P. Power Operated.
E-FM-ME2 = META-ETCH-B = Battery Operated.
The simple operation simultaneous with high functionality is matchless. The epoxy-coated aluminum housing meets highest demands on functionality, stability, and design. All sensitive parts are well protected for transport and local operation. For maximum comfort, it is equipped with a handle and carrying strap.
Control unit with a transformer in 100 - 240 VAC 50/60 Hz
out 6 - 30 V infinitely variable / max. current 2.5 amp
current and voltage display
cable for electricity socket US standard
cable for electricity socket EU standard (except UK)
dimensions: approx. 104 x 54 x 160 (W x H x D) mm
weight: approx. 900 gs
Etching pen - for electrolytic etching incl. cable, alligator contact clamp, magnetic contact, 100 cotton rolls.
- A portable unit for electrolytic polishing and etching
- Fully automatic program run controlled by a microprocessor
- Independent from the power supply by using a Li-Ion storage battery
- Handle with the integrated polishing unit, Start / Stop function
- Handle with multicolor LED for showing the current operating state
- Operating panel with clear LCD display for all important operating state
- Adjustable voltage and current, adjustable operating time
After grinding and polishing (instead of chemical etching) electrolytic etching of the prepared spot may be
used with connecting the Etching Pen.
---Connect the Etching Pen to Socket #4.
---Clamp the anode (red wire) of the Etching Pen to the sample or workpiece by the clamp or the magnetic anode supplied.
---Select the Etching Mode (E1 or E2) from the adjustment knob #3
---Remove the closing cap and insert a cotton-wool tampon into the Etching Pen.
---Fill the Etching Pen with the relevant electrolyte (depending on material) using the syringe by putting the syringe into the filling hole on the side of the etching pen.
---The cotton-wool tampon is soaked with the relevant electrolyte.
---Wipe the etching pen on the prepared spot until etching is done. (The mirror-like polished surface becomes darker).
---After the etching process is finished, clean the area with water or alcohol (ethanol) to stop the etching process.
---Do not over etch when using the portable microscope. Forgetting a replica for laboratory examination make over-etching.
---When not in use the close the cap of the Etching Pen.
|Carbon steels||Special Salt Solutions|
e.g. 5% NaCl solution
|Aluminum Alloys||(10% NaCl solution)|
|High-alloyed steels||ital (3% HNO3 in ethanol) +|
water (50:50) or 3% aqueous HNO3
|E2||(concentrated acid |
|(ferritic / martensitic)|
|Austenitic stainless steels||10% oxalic acid||E1||(V2A-steel formulation)|
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