Instruction Manual

5 Putting into operation

45 B-290 Operation Manual, Version I

• Apply the tubes b to h according to the

above ﬁgures. For the tubes d and e, apply

cable binders to ﬁxate them at their connec-

tion.

• Install the spray gas tube to the capillary inlet

connector on top of the heating bath.

• Connect the gas ﬂow tube from the capillary

outlet to the nozzle inlet (gas).

• The feeding tube is connectable in two ways

depending on whether the nozzle cleaning

option is required or not.

• The heating liquid tubes are connected from

the bath to the nozzle port (C in) and from

the nozzle port (C out) throught the pump

back to the bath.

• This way, the nozzle is also heated to prevent

any solidiﬁcation and blocking.

• Adjust the peristaltic pump bed to the 6 mm

silicone tube.

a Needle valve for dosage

b Feeding tube with nozzle cleaning option: Needle

valve - nozzle (feed)

c Cleaning gas nozzle: Instrument - nozzle (top)

d Heating liquid tube: Bath - nozzle (C in) -

nozzle (C out) - peristaltic pump - bath

e Drain tube for heating liquid

f Gas ﬂow tube: Instrument - capillary inlet

g Gas ﬂow tube: Capillary outlet - nozzle (gas)

h Feeding tube without nozzle cleaning option

i Nozzle cleaning unit

j Screw connection for feeding tube

k Closed feed connection

Fig. 5.26: Installing the spray chilling tubing with (left) or without nozzle cleaning option (right)

5.15 Installation check

Carry out an installation check after a successful installation and prior to the ﬁrst spray drying

process.

• Inspect the glass visually for possible damage.

• Check the electrical connections.

• Make sure that the cover of the product collection vessel is connected to the instrument by means

of the cable for arresting electrostatic charges.

• Make sure that the outlet temperature probe is inserted in the coupling.