User Manual

7 Maintenance and repairs

83 B-90 Operation Manual, Version B

7 Maintenance and repairs

This chapter gives instructions on maintenance work to be performed in order to keep the instru-

ment in a good and safe working condition. All maintenance and repair work requiring the opening or

removal of the instrument housing must be carried out by trained personnel and only with the tools

provided for this purpose.

NOTE

Use only genuine consumables and spare parts for any maintenance and repair work in order to

assure warranty and continued system performance. Any modiﬁcations of the Nano Spray Dryer

B-90 or parts of it need prior written permission of the manufacturer.

Danger

Death or serious poisoning by inhalation or incorporation of dried particles during maintenance.

• Wear safety goggles

• Wear safety gloves

• Wear a suitable protective mask

• Wear a laboratory coat

• Clean all parts thoroughly

• Only maintain the instrument in ventilated environments

• Do not inhale dried particles

• Stop drying gas ﬂow before opening the drying circuit

Warning

Death or serious burning by electric current.

• Switch off the instrument, disconnect the power cord and prevent unintentional restart before

removing housing or parts of it

• Do not touch parts inside the instrument with wet hands

• Do not spill liquids over electronic components

• Do not squeeze cables, tubes or other items at reassembling

• Exchange defective cabling or tubing before reassembling