Buchi K-437, Operation Manual

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4 Description of function
15
K-437 Operation Manual, Version A
4 .2 Functional principle of the COD Accessory
The COD Accessory is suitable for the digestion
of samples for a following COD determina-
tion. The digestion is followed by colorimetric
determination or photometric determination.
Application parameters are listed in official
methods or in the BUCHI Application Note
“COD determination”.
Fig. 4.2: Overview of the COD Accessory
4 .3 Controls of the Digest System
2
4
3
1
6
5
a
Indicator light for heating
b
Start/Stop button
c
Temp/Time button
d
Arrow buttons
e
Enter button
f
Main switch
Fig. 4.3: Controls of the Digest System
4 .4 Rear connections of the Digest System
1
2
a
Mains supply with fuse
b
Mains socket for Scrubber
Fig. 4.4: Rear connections of the Digest System