Hach sc100 User manual

Brand: Hach

Model: sc100

Type: User manual

Catalog Number 58600-18

Hach sc100™ Controller

USER MANUAL

February 2005, Edition 5

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Table of Contents

Section 1 Specifications............................................................................................................................................... 5

Section 2 General Information ..................................................................................................................................... 7

2.1 Safety Information ..................................................................................................................................................... 7

2.1.1 Use of Hazard Information............................................................................................................................... 7

2.1.2 Precautionary Labels....................................................................................................................................... 7

2.2 General Product Information ..................................................................................................................................... 7

Section 3 Installation..................................................................................................................................................... 9

3.1 Mechanical Installation............................................................................................................................................ 11

3.1.1 Controller Dimension Illustrations .................................................................................................................. 11

3.1.2 Mounting the Controller.................................................................................................................................. 13

3.2 Wiring Safety Information........................................................................................................................................ 15

3.2.1 Electrostatic Discharge (ESD) Considerations............................................................................................... 15

3.3 Electrical Installation................................................................................................................................................ 15

3.3.1 Installation in Conduit..................................................................................................................................... 16

3.3.2 Installation Using a Power Cord..................................................................................................................... 16

3.3.3 Wiring for Power at the Controller .................................................................................................................. 17

3.4 Alarms and Relays .................................................................................................................................................. 20

3.4.1 Connecting the Relays................................................................................................................................... 20

3.4.2 Connecting the Analog Outputs..................................................................................................................... 21

3.5 Connecting/Wiring the sc Sensor............................................................................................................................ 22

3.5.1 Connecting the sc Sensor in a Non-hazardous Location............................................................................... 22

3.5.2 Connecting the sc Sensor to a Controller in a Hazardous Location............................................................... 24

3.6 Wiring the Digital Gateway ...................................................................................................................................... 25

3.7 Connecting the Optional Digital Output................................................................................................................... 25

Section 4 Operation..................................................................................................................................................... 29

4.1 Using the Keypad .................................................................................................................................................... 29

4.2 Controller Display Features ..................................................................................................................................... 30

4.2.1 Important Key Presses................................................................................................................................... 30

4.3 System Setup ........................................................................................................................................................ 31

4.3.1 Adjusting Display Contrast............................................................................................................................. 31

4.3.2 Specifying the Displayed Language............................................................................................................... 31

4.2.2 Software Text Abbreviations........................................................................................................................... 31

4.3.3 Setting the Time and Date ............................................................................................................................. 32

4.4 Setting up System Security ..................................................................................................................................... 33

4.4.1 Setting the Passcode..................................................................................................................................... 33

4.4.2 Editing the Passcode ..................................................................................................................................... 33

4.5 Output Options ........................................................................................................................................................ 34

4.5.1 Navigating to the Output Options Menu......................................................................................................... 34

4.5.2 Hold/Transfer Outputs .................................................................................................................................... 34

4.5.3 Release Outputs ............................................................................................................................................ 35

4.6 Relay Options.......................................................................................................................................................... 35

4.6.1 Navigating to the Relay Options Menu........................................................................................................... 35

4.7 Data Event Logging Options.................................................................................................................................... 35

4.8 Digital Network Options........................................................................................................................................... 36

4.9 System Setup Menu................................................................................................................................................ 36

4.10 Test/Maint Menu.................................................................................................................................................... 40

Section 5 Maintenance................................................................................................................................................ 41

5.1 Cleaning the Controller............................................................................................................................................ 41

5.2 Fuse Replacement .................................................................................................................................................. 41

Table of Contents

Section 6 Replacement Parts and Accessories........................................................................................................43

6.1 Replacement Items..................................................................................................................................................43

6.2 Accessories..............................................................................................................................................................43

Section 7 Compliance Information.............................................................................................................................45

Section 8 How to Order ...............................................................................................................................................47

Section 9 Repair Service.............................................................................................................................................48

Section 10 Limited Warranty.......................................................................................................................................49

Section 1 Specifications

Specifications are subject to change without notice.

Component Description

Microprocessor-controlled measuring unit with measured value display, temperature

display, and menu-driven system

Controller Operating

Temperature

–20 to 60 °C (–4 to 140 °F); 95% relative humidity, non-condensing with sensor/network

card load <7 W; –20 to 40 °C (–4 to 104 °F) with sensor /network card load <25 W

Controller Storage

Temperature

–20 to 70 °C (–4 to 158 °F); 95% relative humidity, non-condensing

Enclosure NEMA 4X/IP66 metal enclosure with a corrosion-resistant finish

Power Requirements

AC Powered sc100 model: 100–230 VAC ±10%, 50/60 Hz; Power 15 W with 7 W

sensor/network card load, 37 W with 25 W sensor/network card load

24 VDCpowered sc100 model: 24 VDC –15%, +20%; Power 16W with 7W

sensor/network card load, 34 W with 25 W sensor/network card load

Pollution Degree/

Installation Category

II; II

Outputs

Two (Analog (4–20 mA)) outputs, maximum impedance 500 ohm. Optional digital network

connection. IrDA digital connection.

Relays

Three SPDT, user-configured contacts rated 100–230 VAC, 5 Amp resistive maximum for

the ac powered sc100 and 24 VDC, 5A resistive maximum for the dc powered sc100.

Controller Dimensions ½ DIN—144 x 144 x 150 mm (5.7 x 5.7 x 5.9 inches)

Controller Weight 1.6 kg (3.5 lb)

Certifications

CE approved (with all sensor types)

Listed for use in general locations to UL and CSA safety standards by ETL (with all sensor

types)

Listed for use in Class I, Division 2 hazardous locations to FM & CSA safety standards by

ETL (with specified sensor types, per Control Drawing 58600-78

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Section 2 General Information

2.1 Safety Information

Please read this entire manual before unpacking, setting up, or operating this equipment.

Pay attention to all danger and caution statements. Failure to do so could result in serious

injury to the operator or damage to the equipment.

To ensure that the protection provided by this equipment is not impaired, do not use or

install this equipment in any manner other than that specified in this manual.

2.1.1 Use of Hazard Information

DANGER

Indicates a potentially or imminently hazardous situation which, if not avoided,

could result in death or serious injury.

CAUTION

Indicates a potentially hazardous situation that may result in minor or moderate

injury.

Important Note: Information the requires special emphasis.

Note: Information that supplements points in the main text.

2.1.2 Precautionary Labels

Read all labels and tags attached to the instrument. Personal injury or damage to the

instrument could occur if not observed

2.2 General Product Information

The controller enclosure is NEMA4X/IP66-rated and has a corrosion-resistant finish

designed to withstand corrosive environmental constituents such as salt spray and

hydrogen sulfide. The controller display shows the current reading plus a secondary

measurement such as temperature if connected to a single sensor, or two readings with

their corresponding secondary measurement readings when two sensors are connected.

Installation instructions for the controller are presented in this manual. If a system with a

sensor and a controller has been purchased, complete information for installation and

operation is also presented in the sensor system manual.

This symbol, if noted on the instrument, references the instruction manual for operation and/or safety information.

This symbol, when noted on a product enclosure or barrier, indicates that a risk of electrical shock and/or

electrocution exists.

This symbol, if noted on the product, indicates the need for protective eye wear.

This symbol, when noted on the product, identifies the location of the connection for Protective Earth (ground).

This symbol, when noted on the product, identifies the location of a fuse or current limiting device.

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Section 3 Installation

DANGER

Only qualified personnel should conduct the installation tasks described in this

section of the manual. This equipment is suitable for use in non-hazardous

locations or Class 1, Division 2, Groups A, B, C, D Hazardous Locations with

specified sensors and options when installed per the Hazardous Location

Installation Control Drawing on page 10. Always refer to the Control Drawing and

applicable electrical code regulations for proper installation instructions.

DANGER

Explosion hazard. Substitution of components may impair suitability for Class 1,

Division 2. Do not replace any component unless power has been switched off or

the area is known to be non-hazardous.

Figure 1 Components of a Basic System

1. Controller 6. Lock washer, ¼-inch I.D. (4), Cat. No. 8H1336

2. Mounting foot for panel mounting (2), Cat. No. 1000B4F3222 7. Flat washer, ¼-inch I.D. (4), Cat. No. 8H1346

3. Bracket for panel & pipe mounting,

Cat. No. 1000C4F3217-101

8. Pan head screws (4), M6 x 1.0 x 20 mm,

Cat. No. 5867400

4. Gasket for panel mounting, Neoprene,

Cat. No. 1000A4F3249-101

9. Pan head screws (4), M6 x 1.0 x 100 mm,

Cat. No. 5867500

5. Hex nut, M6 (4), Cat. No. 5867300 10. Pan head screws (4), M6 x 1.0 x 150 mm,

Cat. No. 5867600

Table 1 Customer-supplied Items

Item

14-AWG wire for electrical power connections in conduit or 115 or 230 V ac power cord plus a NEMA 4X-rated strain relief

High-quality, shielded instrumentation cable for connecting the analog outputs plus a NEMA 4X-rated strain relief.

Mounting hardware for the sensor (available from the manufacturer, order separately). See the sensor manual.

Sun shield for mounting configurations where the sun strikes the front of the display.

Common hand tools

sc100

Installation

Figure 2 Hazardous Location Installation Control Drawing

PROBE, REF.TABLE 1

SEE NOTE 3

PROBE, REF.TABLE 1

SEE NOTE 3

TABLE 1

PROBE DESCRIPTION PART NO.

LDO PROBE w/10m CABLE

57900-01

CONTACTING CONDUCTIVITY PROBE w/6 m CABLE

34XXXA

INDUCTIVE CONDUCTIVITY PROBE w/6 m CABLE 3700 SERIES

DIFFERENTIAL PH PROBE w/4.5 m CABLE PD SERIES RD SERIES

COMBINATION PH PROBE w/4.5 m CABLE PC SERIES RC SERIES

TABLE 2

NETWORK INTERFACE DESCRIPTION PART NO.

RS 232 NETWORK CARD

59200-00

RS 485 NETWORK CARD 59200-01

AQUATREND NETWORK CARD 59200-02

PROFI BUS NETWORK CARD 59200-03

PRIOR TO CHANGING

APPROVAL REQUIRED

REGULATORY AGENCY

THIS DRAWING

NORTH AMERICAN HAZARDOUS (CLASSIFIED) LOCATION

NON-HAZARDOUS (CLASSIFIED) LOCATION

CLASS I DIV.2 GROUPS A, B, C, D

CLASS I, ZONE 2, GROUP IIC, T4

1. WIRING METHODS MUST BE IN ACCORDANCE

WITH NEC, ANSI/NFPA 70, ARTICLE 504

CEC C22.1-94, SECTION 18 & ANSI/ISA

RP 12.6

2. CONNECTIONS FROMTHE sc100 DEVICES IN

NON-HAZARDOUS LOCATIONTO BE IN 1/2"

(1.3 cm) CONDUIT

3. TWO SENSORS MAXIMUMWITH ANY SENSOR

CONFIGURATION SHOWN.

INPUT 100-230V, 50/60 Hz or 24 VDC

20 AMP BREAKER OR SWITCH

CONTROL DRAWING,

HAZ LOCATION, sc100

58600-78

KCT

NONE

1 OF 1

SEE TABLE 3

ENGR

DIMENSIONS ARE IN INCHES

.XX

REVISIONS

6 4

DESCRIPTION

DWN

THIRD ANGLE PROJECTION

DWG. NO.

SCALE

.XXX

REV

DO NOT SCALE THIS DWG

ANGLES

NOTICE - Hach Company claims proprietary rights in the information disclosed on this drawing. It is issued in confi-

dence for engineering information only and may not,in whole or in part,be used to manufacture anything, whether or

not shown hereon,reproduced or disclosed to anyone without direct permission from Hach Company.

UNLESS OTHERWISE SPECIFIED

SIZE

SHT

MATL.

REL

REV

TITLE

APPROVED

TOLERANCES ARE AS FOLLOWS:

Hach Company

5600 Lindbergh Dr.

Loveland, CO 80539

TABLE 3

EXTENSION CABLE DESCRIPTION PART NO.

1 m EXTENSION CABLE 61224-01

7 m EXTENSION CABLE 57960-01

15 m EXTENSION CABLE 57961-01

31 m EXTENSION CABLE 57962-01

TABLE 4

GATEWAY DESCRIPTION PART NO.

DIGITAL GATEWAY, DIFF.PH 61205-00

DIGITAL GATEWAY, COMBO PH 61206-00

DIGITAL GATEWAY, CONTACTING CONDUCTIVITY 61207-00

DIGITAL GATEWAY, INDUCTIVE CONDUCTIVITY 61208-00

DIGITAL GATEWAY

REF.TABLE 4

REVISED PER R-2023-04

REVISED PER R-1253-05

SC100

CONTROLLER

WITH NETWORK

CARD

REF.TABLE 2

UPTO 3 SWITCHED RELAY LOADS

FROM sc100 RELAY CONTACTS

RATED 30VAC OR 42.2 VDC

@ 5 AMP (MAX.)

UPTO 3 SWITCHED RELAY LOADS

FROM sc100 RELAY CONTACTS

RATED 100-230V, 50/60 HZ,

5 AMP (MAX.)

INPUT = 100 - 230V, 50/60 Hz INPUT = 24VDC

NETWORKTERMINAL

(e.g. COMPUTER)

OR 4-20 mA (2)TERMINAL

(e.g. CHART RECORDER)

Installation

3.1 Mechanical Installation

Install in an environment that is protected from corrosive fluids.

3.1.1 Controller Dimension Illustrations

Figure 3 Controller Dimensions

Figure 4 Controller Mounting Dimensions

sc100

144.0 mm (5.67 inches) 150.0 mm (5.91 inches)

144.0 mm (5.67 inches)

80.27 mm

(3.16 inches)

144.02 mm (5.67 inches)

80.27 mm

(3.16 inches)

144.02 mm

(5.67 inches)

72.01 mm

(2.84 inches)

72.01 mm

(2.84 inches)

40.14 mm (1.58 inches)

M6 x 1.0

40.14 mm

(1.58 inches)

Installation

Figure 5 Panel Mount Cut-out Dimensions

Figure 6 Conduit Hole Dimensions

133 mm (5.25 )inches

144 mm (5.67 )inches

ref only()

135 mm

(5.31 )inches

144 mm

(5.67 )

()

inches

ref only

67.4 mm

(2.65 )inches

72 mm

(2.835 )inches

ref only()

66.67 mm (2.625 )inches

75 mm (2.955 )inches

(ref only)

6.35 mm (0.25 inch)

15.24 mm (0.60 inch)

28.57 mm (1.125 inches)

75.07 mm (2.955 inches)

127 mm

(5.00 inches)

150 mm

(5.91 inches)

(ref only)

99.31 mm

(3.91 inches)

50.8 mm

(2.00 inches)

28.57 mm (1.125 inches)

68.96 mm (2.715 inches)

25.4 mm (1.00 inch)

144 mm (5.67 inches)

Installation

3.1.2 Mounting the Controller

Attach the controller to a rail or wall or mount it in a panel. Supplied mounting hardware is

shown in Figure 7, Figure 8, and Figure 9.

Figure 7 Vertical or Horizontal Pipe Mounting the Controller

Figure 8 Wall Mounting the Controller

1. Controller 4. Flat washer, ¼-inch I.D. (4), Cat. No. 8H1346

2. Pipe (vertical or horizontal) 5. Hex nut, M6 (4), Cat. No. 5867300

3. Bracket, pipe mounting, Cat. No. 1000C4F3217-101 6. Pan head screw, M6 x 1.0 x 100 mm (4), Cat. No. 5867400

1. Controller 4. Pan head screw, M6 x 1.0 x 20 mm (4), Cat. No. 5867400

2. Bracket, Cat. No. 1000C4F3217-101 5. Customer-supplied hardware for wall mounting

3. Lock washer, ¼-inch I.D., Cat. No. 8H1336

Installation

Figure 9 Panel Mounting the Controller

To remove the sensor connectors before inserting the controller enclosure into the panel

cut-out:

1. Disconnect the wires at terminal block J5, see Figure 19 on page 24.

2. Loosen and remove the nut securing the sensor connector inside the enclosure.

Remove the sensor connector and wires. Repeat step 1 and 2 for the other sensor

connector.

3. After the controller is in place in the panel, reinstall the sensor connectors and

reconnect the wiring to terminal J5 as shown in Figure 19 on page 24.

1. Controller 7. Lock washer, ¼-inch I.D., (4) Cat. No. 8H1336

2. Gasket, Neoprene, panel mount,

Cat. No. 1000A4F3249-101

8. Hex nut (4), Cat. No. 5867300

3. Panel (maximum thickness is 9.5 mm (

/8 inch)) 9. Flat washer (4), Cat. No. 8H1346

4. Mounting Foot (2), Cat. No. 1000B4F3222 10. Pan head screw, M6 x 1.0 x 150 mm (4),

Cat. No. 5867600

5. Mounting bracket, controller, Cat. No. 1000C4F3217-101 11. It may be necessary to remove the sensor connectors.

see procedure below.

6. Pan head screw (4), Cat. No. 5867400

Installation

3.2 Wiring Safety Information

When making any wiring connections to the sc100 Controller, the following warnings and

must be adhered to, as well as, any warnings and notes found throughout the individual

installation sections. For more safety information refer to Safety Information on page 7.

DANGER

Always disconnect power to the instrument when any making electrical

connections.

3.2.1 Electrostatic Discharge (ESD) Considerations

Important Note: To minimize hazards and ESD risks, maintenance procedures not

requiring power to the analyzer should be performed with power removed.

Delicate internal electronic components can be damaged by static electricity, resulting in

degraded instrument performance or eventual failure.

The manufacturer recommends taking the following steps to prevent ESD damage to

your instrument:

• Before touching any instrument electronic components (such as printed circuit cards

and the components on them) discharge static electricity from your body. This can be

accomplished by touching an earth-grounded metal surface such as the chassis of an

instrument, or a metal conduit or pipe.

• To reduce static build-up, avoid excessive movement. Transport static-sensitive

components in anti-static containers or packaging.

• To discharge static electricity from your body and keep it discharged, wear a wrist

strap connected by a wire to earth ground.

• Handle all static-sensitive components in a static-safe area. If possible, use anti-static

floor pads and work bench pads.

3.3 Electrical Installation

DANGER

This equipment is suitable for use in non-hazardous locations or Class 1, Division

2, Groups A, B, C, D Hazardous Locations with specified sensors and options when

installed per the Hazardous Location Installation Control Drawing on page 10.

Always refer to the Control Drawing and applicable electrical code regulations for

proper installation instructions.

High-voltage wiring for the controller is conducted behind the high voltage barrier in the

controller enclosure. The barrier must remain in place unless a qualified installation

technician is installing wiring for power, alarms, or relays. See Figure 10 for barrier

removal information.

Installation

Figure 10 Removing Voltage Barrier

3.3.1 Installation in Conduit

In hard-wired electrical applications, the power and safety ground service drops for the

instrument must be 18 to 12 AWG. See Figure 11 on page 16 for strain relief and conduit

opening sealing plug information. See section 3.3.3 on page 17 for wiring information.

3.3.2 Installation Using a Power Cord

DANGER

Use of a power cord is not acceptable in Class 1, Division 2 Hazardous Location

Installation (see Hazardous Location Installation Control Drawing on page 10).

A sealing-type strain relief to maintain the NEMA 4X/IP66 environmental rating and a

power cord less than 3 meters (10 feet) in length with three 18-gauge conductors

(including a safety ground wire) can be used, see Replacement Parts and Accessories on

page 43. See Figure 11 on page 16 for strain relief and conduit opening sealing plug

assembly. See section 3.3.3 on page 17 for wiring information.

Figure 11 Using the Optional Strain Relief and Conduit Plug

1. High voltage barrier 2. Unsnap the barrier latch then pull out to remove the barrier.

NCNCNC

COMCOMCOM

NONO

RELAY CRELAY B

RELAY B

RELAY A

+ DATA

+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V

+ OUT 1

GND

– OUT 1

PROBES

ANALOG OUTPUTS

PCB

CONNECTOR

PCB

CONNECTOR

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

DANGER - EXPLOSION HAZARD

DANGER - RISQUE D'EXPLOSION

DO NOT DISCONNECT WHILE CIRCUIT IS LIVE

UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS.

NE PAS DEBRANCHER TANT QUE LE EST SOUS

TENSION, A MONIS QU'IL NE S'AGISSE D'UN

EMPLACEMENT NON-DANGEROUX

NETWORK

INTERFACE

CARD

NCNCNC

COMCOMCOM

NONO

RELAY CRELAY BRELAY BRELAY ARELAY A

+ DATA+ DATA

+ OUT 2+ OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+ V+ V

+ OUT 1+ OUT 1

GND

– OUT 1

PROBES

ANALOG OUTPUTSANALOG OUTPUTS

PCB

CONNECTOR

PCB

CONNECTOR

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

DANGER - EXPLOSION HAZARD

DANGER - RISQUE D'EXPLOSION

DO NOT DISCONNECT WHILE CIRCUIT IS LIVE

UNLESS AREA IS KNOWN TO BE NON-HAZARDOUS.

NE PAS DEBRANCHER TANT QUE LE EST SOUS

TENSION, A MONIS QU'IL NE S'AGISSE D'UN

EMPLACEMENT NON-DANGEROUX

NETWORK

INTERFACE

CARD

1. Power cord strain relief 2. Conduit strain relief 3. Conduit opening sealing plug

Installation

3.3.3 Wiring for Power at the Controller

DANGER

Explosion hazard. Do not connect or disconnect electrical components or circuits

to the equipment unless power has been switched off or the area is known to be

non-hazardous.

DANGER

Do not connect AC power to a sc100 24 VDC powered model.

The sc100 can be purchased as either an 100–230 VAC powered model or a 24 VDC

powered model. Follow the appropriate wiring instructions per the purchased model.

Important Note: A protective earth (PE) ground connection is required by the sc100 for

both 100–230 VAC and 24 VDC wiring applications. Failure to connect a good PE ground

connection can result in shock hazards and poor performance due to electromagnetic

interferences. ALWAYS connect a good PE ground to the sc100 terminal.

The controller can be wired for line power by hard-wiring in conduit or wiring to a power

cord. Regardless of the wire used, the connections are made at the same terminals. A

local disconnect designed to meet local electrical code is required and must be identified

for all types of installation. See Figure 14 and Figure 15 on page 19 for suggested local

disconnect configurations.

1. Obtain appropriate fittings with NEMA 4X/IP66 environmental rating.

2. Loosen the screws using a phillips-head screwdriver and open the hinged controller

cover.

3. Remove the high-voltage barrier (see Figure 10 on page 16).

4. Insert the wires through the strain relief fitting or conduit hub located in the right-rear

access hole in the bottom of the enclosure. Tighten the strain relief if used, to secure

the cord.

5. Properly prepare each wire (Figure 12) and insert each wire into the terminal

according to Table 2 or Table 3. Tug gently after each insertion to ensure the

connection is secure.

6. Seal any unused openings in the controller box with conduit opening sealing plugs.

7. Reinstall the high-voltage barrier and latch to secure.

Figure 12 Proper Wire Preparation and Insertion

1. Strip ¼-inch of insulation. 2. Seat insulation against connector with no bare wire exposed.

Installation

The DC power source that supplies power to the 24 VDC powered sc100 must maintain

voltage regulation within the specified 24 VDC –15% +20% voltage limits. The DC power

source must also provide adequate protection against surges and line transients.

Figure 13 sc100 Wiring Connections

Table 2 AC Power Wiring Information (sc100 AC powered model only)

Terminal Number Terminal Description Wire Color Code for North America Wire Color Code for Europe

1 Hot (L1) Black Brown

2 Neutral (N) White Blue

3 Protective Earth (PE) Green Green w/yellow tracer

Table 3 DC Power Wiring Information (sc100 24 VDC powered model only)

Terminal Number Terminal Description Wire Color Code for North America Wire Color Code for Europe

1 +24 V dc Red Red

2 24 V dc return Black Black

3 Protective Earth (PE) Green Green w/yellow tracer

1. J1—Network connector 8. Sensor connector

2. J2—Header for optional network interface card 9. Sensor connector

3. J5—Relay A connector 10. J6—Analog output (4–20 mA) connector

4. J6—Relay B connector 11. J5—Sensor connector for hard-wiring

5. J7—Relay C connector 12. Position for network interface card

6. Fuses (F1, F2) 13. Service port

7. J8—Power connections 14. Sensor terminator selector/service port configuration

a. AC Power connection (AC powered sc100 model only)

b. DC Power connection (24 VDC sc100 model only)

NCNCNC

COMCOMCOM

NONO

RELAY CRELAY BRELAY A

NETWORK

INTERFACE

CARD

312

11 10

+24 VDC

+24

VDC

–24 VDC

–24

VDC

Installation

Figure 14 Local Disconnect for Power Cord

Figure 15 Local Disconnect for Hard-wired Line Power

1. Power terminal 2. Power cord strain relief

1. Power terminal 2. Conduit strain relief

NCNCNC

COMCOMCOM

NONO

RELAY CRELAY B

RELAY B

RELAY A

NETWORK

INTERFACE

CARD

NCNCNC

COMCOMCOM

NONO

RELAY CRELAY B

RELAY B

RELAY A

NETWORK

INTERFACE

CARD

Installation

3.4 Alarms and Relays

DANGER

Explosion hazard. Do not connect or disconnect electrical components or circuits

to the equipment unless power has been switched off or the area is known to be

non-hazardous.

DANGER

For Class 1, Division 2 Hazardous Location installations, refer to the Control

Drawing (Figure 2 on page 10) for permanent connection requirements for the alarm

relays.

DANGER

Exposure to some chemicals may degrade the sealing properties of materials used

in the following devices: Relays K1, K2, and K3. Periodic inspection of these

devices is recommended to check for degradation.

The controller is equipped with three unpowered relays rated 100–230 VAC, 50/60 Hz,

5 amp resistive maximum. See the sensor manual for relay setup details.

3.4.1 Connecting the Relays

DANGER

Relay loads must be resistive. User must externally limit current to the relays to

5 Amps by use of a fuse or breaker.

DANGER

Power and relay terminals are designed for only single wire termination. Do not use

more than one wire in each terminal.

The relay connector accepts 18–12 AWG wire (as determined by load application). Wire

gauge less than 18 AWG is not recommended.

The Normally Open (NO) and Common (COM) relay contacts will be connected when an

alarm or other condition is active. The Normally Closed (NC) and Common relay contacts

will be connected when an alarm or other condition is inactive or when power is removed

from the controller.

AC Line (100–230 V) Powered sc100’s

AC line powered sc100 controllers contain three relays designed for connection to AC

MAINS circuits (i.e., voltages greater than 30V-RMS, 42.2V-PEAK or 60 V dc). Refer to

Figure 16 for connection information. The relay wiring compartment is not designed for

voltage connections below these levels. Relays must not be powered from the same wiring

used to power the controller.

24 VDC Powered sc100

The 24 VDC sc100 controller contains three relays designed for connection to LOW

voltage circuits (i.e., voltages less than 30V-RMS, 42.2V-PEAK or 60 V dc). Refer to

Figure 16 for connection information. The wiring compartment is not designed for voltage

connections above these levels. Relay must not be powered from the same wiring used to

power the controller.

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Hach sc100 User manual

Brand: Hach

Model: sc100

Type: User manual

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Hach sc100 User manual

Hach sc100 User manual

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