Hach 6120118, User Manual

Page: 11 / 52

11
Section 3 Installation
DANGER
Only qualified personnel should conduct the tasks described in this section of the
manual.
DANGER
Seul un technicien qualifié peut effectuer les tâches d'installation décrites dans
cette section du manuel.
The Combination pH/ORP Sensor can be used with either an sc100 or sc1000 controller.
Refer to
section 3.2 on page 13 for sc100 installation instructions and section 3.3 on
page 16 for sc1000 installation instructions.
The sc sensor should be wired to the digital gateway before connecting the digital gateway
to the sc100 or sc1000 Controller. The digital gateway is designed to provide a digital
interface to the appropriate digital controller. Refer to
section 3.1 for more information.
3.1 Wiring the sc Sensor to the Digital Gateway
DANGER
The sc100 and certain versions of the sensor are suitable for use in Class 1,
Division 2, Groups A, B, C, D Hazardous Locations . See Control Drawing 58600-78
in the sc100 Controller Manual, Cat. No. 58600-18 for acceptable sensor versions
and installation requirements.
DANGER
Le sc100 et certaines versions du capteur peuvent être utilisés dans des endroits
dangereux de la Classe 1, Division 2, Groupes A, B, C, D. Reportez-vous au schéma
de contrôle 58600-78 du Manuel du contrôleur sc100, Réf. 58600-18 pour connaître
les versions des capteurs admises et les conditions d'installation.
1. Route the cable from the sensor through the strain relief in the digital gateway then
properly terminate the wire ends (see
Figure 5 ).
Note: Do not tighten the strain relief until the digital gateway is wired and the two halves are
threaded securely together.
2. Insert the wires as shown in Table 3 and Figure 6 .
3. Make sure the O-ring is properly installed between the two halves of the digital
gateway and thread the two halves together. Hand tighten.
4. Tighten the strain relief to secure the sensor cable.
5. Connect the digital gateway to the controller.
• sc100 Non-hazardous Location– section 3.2.1.1 on page 13
• sc100 Hazardous Location— section 3.2.2.1 on page 16
• sc1000 Connection Instructions—Refer to section 3.3 on page 16 .