Hach LDO User Manual page 11

Terminal Number
1
2
3
4
5
6
Figure 3 Hard-wiring the Sensor
J1 J1
S1 S1
J2 J2
U5 U5
J4 J4
NETWORK NETWORK
INTERFACE INTERFACE
CARD CARD
From Probe
Table 2 Wiring the Sensor at Terminal Block J5
Terminal Designation
Data (+)
Data (–)
Service Request
+12 VDC
Circuit Common
Shield
J3 J3
J5 J5
J5 J5
U9 U9
J6
Shield (grey wire in existing quick-disconnect fitting)
1 1 1 1 + + + + + + + + DATA DATA DATA DATA DATA DATA DATA DATA
2 2 2 2 – DATA – DATA – DATA – DATA
3 3 3 3 SERVICE REQUEST SERVICE REQUEST SERVICE REQUEST SERVICE REQUEST
+ + + + + + + +
4 4 4 4 V V V V V V V V
5 5 5 5 GND GND GND GND
6 6 6 6
1 1 1 1 + + + + + + + + OUT 2 OUT 2 OUT 2 OUT 2 OUT 2 OUT 2 OUT 2 OUT 2
2 2 2 2 – OUT 2 – OUT 2 – OUT 2 – OUT 2
3 3 3 3 SHIELD/CHASSIS GND SHIELD/CHASSIS GND SHIELD/CHASSIS GND SHIELD/CHASSIS GND
4 4 4 4 + + + + + + + + OUT 1 OUT 1 OUT 1 OUT 1 OUT 1 OUT 1 OUT 1 OUT 1
PCB PCB PCB PCB PCB PCB PCB PCB
5 5 5 5 – OUT 1 – OUT 1 – OUT 1 – OUT 1
CONNECTOR CONNECTOR CONNECTOR CONNECTOR CONNECTOR CONNECTOR CONNECTOR CONNECTOR
NC NC NC NC NC NC
COM COM NO NO COM COM NO NO COM COM NO NO
RELAY 1 RELAY 1 RELAY 2 RELAY 2 RELAY 3 RELAY 3
DANGER - EXPLOSION HAZARD DANGER - EXPLOSION HAZARD DANGER - EXPLOSION HAZARD DANGER - EXPLOSION HAZARD
DO NOT DISCONNECT WHILE CIRCUIT IS LIVE DO NOT DISCONNECT WHILE CIRCUIT IS LIVE DO NOT DISCONNECT WHILE CIRCUIT IS LIVE DO NOT DISCONNECT WHILE CIRCUIT IS LIVE FIELD WIRING FIELD WIRING FIELD WIRING FIELD WIRING FIELD WIRING FIELD WIRING FIELD WIRING FIELD WIRING
UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS. UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS. UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS. UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS.
INSULATION MUST INSULATION MUST INSULATION MUST INSULATION MUST INSULATION MUST INSULATION MUST INSULATION MUST INSULATION MUST
BE RATED TO BE RATED TO BE RATED TO BE RATED TO BE RATED TO BE RATED TO BE RATED TO BE RATED TO
DANGER - RISQUE D'EXPLOSION DANGER - RISQUE D'EXPLOSION DANGER - RISQUE D'EXPLOSION DANGER - RISQUE D'EXPLOSION
80° C MINIMUM 80° C MINIMUM 80° C MINIMUM 80° C MINIMUM 80° C MINIMUM 80° C MINIMUM 80° C MINIMUM 80° C MINIMUM
NE PAS DEBRANCHER TANT QUE LE EST SOUS NE PAS DEBRANCHER TANT QUE LE EST SOUS NE PAS DEBRANCHER TANT QUE LE EST SOUS NE PAS DEBRANCHER TANT QUE LE EST SOUS
TENSION, A MONIS QU'IL NE S'AGISSE D'UN TENSION, A MONIS QU'IL NE S'AGISSE D'UN TENSION, A MONIS QU'IL NE S'AGISSE D'UN TENSION, A MONIS QU'IL NE S'AGISSE D'UN
EMPLACEMENT NON-DANGEROUX EMPLACEMENT NON-DANGEROUX EMPLACEMENT NON-DANGEROUX EMPLACEMENT NON-DANGEROUX
Installation
Wire Color
Blue
White
No Connection
Brown
Black
Disconnect
Power
11