Hach sc100TM 3.4 Connecting/Wiring the Sensor Cable

Installation

17

3.4 Connecting/Wiring the Sensor Cable

The sensor cable is supplied with a keyed quick-connect fitting for easy

attachment to the controller, see Figure 3-19. Retain the connector cap to seal the

connector opening in case the sensor must be removed. Optional extension

cables may be purchased to extend the sensor cable length. If the total cable

length exceeds 100 M (300 ft), a termination box must be installed. See the

Replacement Parts section in the sensor manual for part number information.

Figure 3-19 Attaching the Sensor using the Quick-connect Fitting

Modify the controller for sensor hard-wiring as follows:

1. Open the controller cover.

2. Disconnect and remove the existing wires between the quick connect and

terminal block J5, see Figure 3-20 on page 18.

3. Remove the quick connect fitting and wires and install the threaded plug on

the opening to maintain the environmental rating.

NCNCNC COMCOMCOM NO

F1

F2

NONO

RELAYCRELAYBRELAYA

J1

J2

J4

S1

NETWORK

INTERFACE

CARD

J3

J5

J6

U5

U9 J5J5

From Probe

J5J5

Table 3-4 Wiring the Sensor at Terminal Block J5

Termin al Number Terminal Designation Wire Color

1Data (+) Blue

2Data (–) White

3Service Request No Connection

4+12 V dc Brown

5Circuit Common Black

6Shield Shield (grey wire in existing quick disconnect fitting)

Contents

Main Table of Contents Section 1 Specifications Specifications are subject to change without notice. Section 2 General Information 2.1 Safety Information 2.1.1 Precautionary Labels 2.2 General Product Information Section 3 Installation Table 3-1 Customer Supplied Items 3.1 Mechanical Installation 3.1.1 Controller Dimension Illustrations Figure 3-4 Panel Mount Cut-out Dimensions Figure 3-5 Conduit Hole Dimensions 3.1.2 Using the Optional Sun Shield Figure 3-7 Mounting the Controller in the Sun Shield 3.1.3 Mounting the Controller Page 3.2 Electrical Installation DANGER 1. High voltage barrier 2. Unsnap the barrier latch then pull out to remove the barrier. 3.2.1 Installation in Conduit 3.2.2 Installation Using a Power Cord 3.2.3 Wiring for Power at the Controller 7. Reinstall the high-voltage barrier and latch to secure. Figure 3-14 Wiring Connections Table 3-2 Power Wiring Information Figure 3-15 Local Disconnect for Power Cord Figure 3-16 Local Disconnect for Hard-wired Line Power 1. Power terminal 2. Power cord strain relief 1. Power terminal 2. Conduit strain relief 3.3 Alarms and Relays 3.3.1 Connecting the Relays 3.3.2 Connecting the Analog Outputs J6 J5J5 RELAYCRELAYBRELAYA Figure 3-18 Analog Output Connections 3.4 Connecting/Wiring the Sensor Cable Figure 3-20 Hard-wiring the sensor RELAY1 From Probe J6 3.5 Connecting the Optional Digital Output RELAY3RELAY2 J1 J2 J4 NETWORK INTERFACE CARD J3 S1 Figure 3-21 Network Card Position in the Controller Table 3-5 Network Connections at Terminal Block J1 1. J2Network card header 2. Mounting hole (3) 3. Network card placement 4. J1 Terminal Detail A RS232 Connections to Customer-supplied Computer 9-pin D Subminiature Connector Common 5 9 8 7 6 Section 4 Maintenance 4.1 Cleaning the Controller 4.2 Fuse Replacement Section 5 Replacement Parts Replacement Items Accessories Section 6 How to Order U.S.A. Customers Information Required International Customers Technical and Customer Service (U.S.A. only) Section 7 Repair Service Section 8 Limited Warranty Limitations Limitation of Remedies Section 7 Compliance Information Product Safety Immunity EN 61326 (EMC Requirements for Electrical Equipment for Measurement, Emissions Canadian Interference-causing Equipment Regulation, IECS-003, Class A FCC PART 15, Class A Limits Index