Servicing And Cleaning - BRAND Transferpette electronic Instrucciones De Manejo

Transferpette electronic up to 1000 µl
®
In order to assure proper funtioning, the Transferpette
electronic should be serviced and cleaned at regular
intervals.
Servicing
Inspect the pipette tip cone for damage.
Inspect the piston and seal for contamination and damage.
Test the sealing of the instrument. We recommend using
the BRAND leak testing instrument PLT unit. Alternatively:
to do this aspirate a sample, and then hold the instrument
in a vertical position for about 10 sec. If a drop forms at
the tip orifice, see the troubleshooting guide on page 65.
Disassembly and cleaning
1.
Unscrew the pipette shaft (S) from the hand grip.
2.
Separate the magnetic connection between both
components by gently but firmly pulling in opposite
directions.
3.
Unscrew the upper part of the ejector (A) from
the pipette shaft.
4.
Pull the shaft (D and B) out of the lower part (E)
of the ejector.
5.
Unscrew the retention sleeve (B).
Note:
The piston and piston guide re-
main connected with the retention
sleeve (B)!
6.
Remove the spring and seal (C).
7.
Clean the parts shown with a mild soap solution or
isopropanol and then rinse with distilled water.
8.
Allow the parts to dry (max. 120 °C/248 °F).
9.
Grease piston with a very thin layer of oil.
10.
Assemble the cooled parts in reverse order from
above. The retention sleeve and the upper part of
the ejector (A, B) should only be hand-tight.
11.
Perform reference run (rEF).
Note:
All individual components shown, can be ordered as spare parts.
For ordering information see page 67.

Servicing and Cleaning

®
S
A
B
C
D
E
61