Hach SC200 Manuel De L'utilisateur page 5

Section 3 Installation
Multiple hazards. Only qualified personnel must conduct the tasks described in this section of the
document.
3.1 Connect the sensor to the module
Potential electrocution hazard. Always disconnect power to the controller when making electrical connections.
Electrocution hazard. High voltage wiring for the controller is conducted behind the high voltage barrier in the
controller enclosure. The barrier must remain in place except when installing modules, or when a qualified
installation technician is wiring for power, relays or analog and network cards.
Potential instrument damage. Delicate internal electronic components can be damaged by static electricity,
resulting in degraded performance or eventual failure.
To install the module and connect the sensor, refer to the illustrated steps that follow and the wiring
table Table 1.
Be sure to connect all sensor ground/shield wires to the controller enclosure grounding screws.
Note: If the sensor cable is not long enough to reach the controller, an interconnect cable and junction box are
required to extend the distance.
Table 1 Dissolved oxygen and oxygen scavenger sensor wiring
Terminal
1
2
3
4
5
6
7
8
9
10
11
12
In Step 3 of the following sequence, set the switch as follows:
Switch Setting
Setting 1
Setting 2
C A U T I O N
W A R N I N G
W A R N I N G
N O T I C E
Description
Temp +
Temp -
—
—
Ground
Earth
—
—
Working electrode
Counter electrode
Reference electrode
—
Dissolved oxygen
Black
Blue
—
—
Green
Yellow
—
—
White
Red
—
—
Description
Dissolved oxygen
Oxygen scavenger
Oxygen scavenger
Black
Blue
—
—
Green
Yellow
—
—
White
Gray
Transparent
—
English 5