VACUUM LEAK DETECTOR
VLXE ..
31/10/2019
- 24 -
5.6.3 Block diagram (SL 854 210)
60
Pump (24 V DC)
69
Buzzer, if applicable
76
Main circuit board
91 Heater
102 Pressure
sensor
103 Display
116
Power supply 24 V DC
139 Membrane
keyboard
140
Contacts for serial data transfer
141
Membrane keyboard connection strip
146
Magnetic valve monitoring boards
149
Ethernet board (if available)
150
PCB for maintenance display
8
7
6
5
4
3
2
N
PE
L
M
+
-
~
1
L
L
40
24
V
DC
41
22
21
16
15
3
3
6
7
43
6
18
5
17
N
N
L(
+)
N(-
)
N
RX
GND
P
robe
Da
ta
60
76
69
91
102
116
149
146
139
141
140
103
150
Installation