BUCHI KjelDigester K-449 - Manual (Page 48)

7 – 48
7 Maintenance
KjelDigester K-446/K-449 Operation Manual
7.1.4 Maintenance every year or after every 1000 digestion cycles
No Task
1. Check the rechargeable battery (8–58)
2. Replace the sealings and springs of the suction module (7–50)
7.1.5 Maintenance every 3 years
No Task
1. Replace the rechargeable battery (7–52)
7.2 Cleaning
7.2.1 KjelDigester, cleaning
NOTICE
Risk of liquids leaking into the housing or electrical components!
Device damage by liquids and detergents and corrosion through chemicals.
1. Let the device cool down before cleaning.
2. Do not spill liquids over the device, wipe off any liquids instantly.
3. Use a pipette to remove remaining liquid.
4. Use ethanol or soapy water as detergent only.
a Preliminary tasks
1. Let the heating block cool down (<60 °C).
2. Switch off the main switch.
WARNING
Risk of electric shock or burns from electric current during cleaning!
Serious injuries or death can result.
1. Switch off the device.
2. Disconnect the power supply cable from the device.
3. Wait until the device is completely dry before reusing.
3. Disconnect the power supply cable of the device.
b Tasks
1. Clean the drip tray with water and store it in the drip tray holder.
2. Clean the device surfaces and covers with a damp cloth to remove acid splashes.
∙Remove the heating block cover for cleaning.
3. Clean the heating block cover.
4. Clean all spaces, e.g. between heating block and housing.
∙In case of a strong contaminant of the heating block use the wire brush and drilling
machine.
5. Put back the cover onto the heating block.