
3.3 Terminal Function Description
1
100~240 AC:
Power supply terminal
2
3
WASH:
Wash relay contact for an external relay
4
5
REL2:
Second alarm control, the contact for an external relay
6
7
REL1:
First alarm control, the contact for an external relay
8
9
D-(A):
RS-485 output D+(A)
10
G:
RS-485 output GND
11
D+(B):
RS-485 output D+(B)
12
4~20mA –terminal:
MLSS current output terminal -, for an
external recorder or PLC control
13
4~20mA
+
terminal:
MLSS current output te, for an
external recorder or PLC control
14
Shield:
Sensor signal shield wire
15
V+ :
BROWN sensor wire (power + terminal)
16
Check:
GREEN sensor wire (self-test signal output terminal)
17
V- :
BLUE sensor wire (power - terminal)
18
S- :
BLACK sensor wire (signal - terminal)
19
Cal. :
RED sensor wire (calibration signal input terminal)
20
S+ :
WHITE sensor wire ( terminal)
3.4 Cable Wiring
S+(White)
Cal.(Red)
S-(Black)
V-(Blue)
Check(Green)
V+(Brown)
Shield
8