T
ABLE OF
C
ONTENT
P
AGE
5
C
HAPTER
5
M
AINTENANCE AND SERVICE
→ C
HANGING
P
ERISTALTIC
D
OSING
P
UMP
→ C
LEANING OF THE
M
EASURING
-
CHAMBER
→ C
HANGING
W
ORN
P
ARTS
→ C
HANGING
R
EAGENT
B
OTTLE
→ C
HANGING
S
PARE
P
ARTS
41
C
HAPTER
6
D
IAGNOSTIC
F
UNCTION
TEST OF
→ LED
S
→ C
ONTROL
-B
UTTON
→ DIP
S
WITCH
→ P
OTENTIOMETER
→ R
ELAY
1
+
2
→ S
OLENOID
V
ALVE
→ A
CTUATOR
LED
→ D
OSING
P
UMP
→ M
AGNETIC
A
GITATOR
→ ‘IN’
C
ONTACT
→ Z
ERO
-T
RANSMISSION
→ C
OLOUR DETECTION
48