Manual

BUCHI Mixer B-400 5 Operation

Switch off the Mixer at the power switch if it makes any unusual

noises or shows signs of instability. Check whether all the parts

and particularly the two blades are in position and have been

correctly installed (see Section 6, Maintenance).

Adjustments

5 Operation

Procedure

The recommended sample weight (see the list of application

in Chapter 9, Appendix) must be observed when you fill sample

material in the beaker.

Please note the following points:

• Never fill pieces of sample material to a level higher than the

green mark b.

• Never process samples which do not comply with the mixer's

intended use (Chapter 2, Safety).

• Never put the mixer into operation without any sample

material.

Push the beaker over the diaphragm seal from underneath and

place in the beaker holder. See Chapter 6, Maintenance, for

details of how to fit the diaphragm seal holder, the cover and the

cutter.

Close the guard door.

Keep the rocker button pressed to the right (IN) to start the dis-

integrating and mixing cycle.

Keep the rocker button pressed to the left (OUT) to move the

beaker away from the cutter.

See Chapter 6, Maintenance, for details concerning dismantling,

cleaning and assembly.

Figure 6: Sample beakers

Figure 7: Inserting the sample beaker

Malfunctions

Malfunction Possible cause Remedy

Mixer performs no function Mixer not switched on Plug in cable

Power switch off Turn switch on

Door not closed Close door

Fuse F101 on print GS-1defective Call technical customer service

Beaker holder does not move up Fuse F102 on print GS-1defective Call technical customer service

Beaker holder does not move up far Sensor print GS-2 is in wrong position Call technical customer service

enough

Magnet/Hall sensor out of position on shaft Call technical customer service

Cutter rotates although rocker Semiconductor relay on print GS-1 defective Call technical customer service

button is not pressed

Table 2: Malfunctions