Eppendorf epMotion 5070 - Manual (Page 76)

Maintenance
epMotion
® 5070
English (EN)
76
8. Check to see if the dispensing tool dispenses liquid without errors by comparing the calculated volume
of water with the dispensing volume of the dispensing tool.
9. Repeat the check with test liquid and new labware.
10. Calculate the volume of the test liquid. Volume = mass : density.
11. Compare the volume of the water to the volume of the test liquid.
12. Change the volume(s) if necessary.
10.7 Maintaining the dispensing tools
10.7.1 Exchanging the sealing rings on the eight-channel dispensing tool
Exchange the sealing ring at the described intervals and if the following problems occur:
• Sealing rings are damaged.
• Tips are not attached parallel.
• Tips are dripping.
• Once a year.
Observe the ambient temperature for the density specification. The density of water at 20 °C is
approx. 0.9982 g/mL.
Changing the density by 10% will change the dispensing result by approx. 0.2%-1%.
NOTICE! Dispensing error due to missing service.
To ensure dispensing according to specifications, each dispensing tool must be serviced after
100,000 full strokes or 200,000 strokes.
epBlue displays a message if a dispensing tool has reached 100,000 full strokes or 200,000
strokes.
 Have the dispensing tool serviced after 100,000 full strokes or 200,000 strokes.
 Send the dispensing tool to your Eppendorf AG service partner.
NOTICE! Damage to the gold contacts from handling.
The tool is damaged if the gold contacts on the tool become damaged or contaminated.
 Do not touch the gold contacts.