Hach sc100 1720E Instrument Manual

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Page 1

Catalog Number 60100-18

Hach sc100™ 1720E Analysis System

Instrument Manual

11/03 2ed

Page 2

Table of Contents

Section 1 Specifications ............................................................................................................................................... 4

Section 2 General Information ..................................................................................................................................... 6

2.1 Safety Information ..................................................................................................................................................... 6

2.2 General Product Information ..................................................................................................................................... 6

2.3 Theory of Operation................................................................................................................................................... 7

Section 3 Installation..................................................................................................................................................... 8

3.1 Mechanical Installation .............................................................................................................................................. 8

3.1.1 Controller Dimension Illustrations .................................................................................................................... 9

3.1.2 Using the Optional Sun Shield ....................................................................................................................... 11

3.1.3 Mounting the Controller.................................................................................................................................. 12

3.2 Electrical Installation................................................................................................................................................ 14

3.2.1 Installation in Conduit..................................................................................................................................... 14

3.2.3 Wiring for Power at the Controller.................................................................................................................. 15

3.3 Alarms and Relays .................................................................................................................................................. 18

3.3.1 Connecting the Relays ................................................................................................................................... 18

3.3.2 Connecting the Analog Outputs ..................................................................................................................... 18

3.4 Connecting/Wiring the Sensor Cable ...................................................................................................................... 19

3.5 Connecting the Optional Digital Output ................................................................................................................... 21

3.6 Turbidimeter Installation Information ....................................................................................................................... 24

3.6.1 Mounting the Turbidimeter Body.................................................................................................................... 24

3.6.2 Installing the Head Assembly......................................................................................................................... 24

3.7 Installing a Sample Line .......................................................................................................................................... 24

3.8 Sample Connections ............................................................................................................................................... 25

Section 4 Operation..................................................................................................................................................... 26

4.1 Using the Keypad .................................................................................................................................................... 26

4.2 Controller Display Features ..................................................................................................................................... 27

4.2.1 Important Key Presses................................................................................................................................... 27

4.3 Instrument Setup ..................................................................................................................................................... 28

4.3.1 Software Text Abbreviation Conventions....................................................................................................... 28

4.3.2 Adjusting Display Contrast............................................................................................................................. 28

4.3.3 Specifying the Displayed Language............................................................................................................... 29

4.3.4 Setting the Time and Date ............................................................................................................................. 29

4.4 Changing the Sensor Name .................................................................................................................................... 30

4.4.1 Setting Up System Security ........................................................................................................................... 31

4.5 Output Options ........................................................................................................................................................ 32

4.5.1 Output Setup Menu (from System Setup)...................................................................................................... 32

4.5.2 Hold/Transfer Outputs.................................................................................................................................... 33

4.5.3 Release Outputs ............................................................................................................................................ 33

4.6 Relay Options .......................................................................................................................................................... 34

4.6.1 Relay Setup Menu (from System Setup) ....................................................................................................... 34

4.7 Data and Event Logging Options............................................................................................................................. 36

4.7.1 Data Logging Options .................................................................................................................................... 36

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

4.9 Menu Structure ........................................................................................................................................................ 36

4.9.1 Sensor Diagnostics Menu .............................................................................................................................. 36

4.9.2 Sensor Setup Menu ....................................................................................................................................... 37

4.9.3 System Setup Menu....................................................................................................................................... 37

4.9.4 Test/Maint Menu ............................................................................................................................................ 38

Page 3

Table of Contents

Section 5 System Startup ........................................................................................................................................... 40

5.1 General Operation ................................................................................................................................................... 40

5.2 Starting Sample Flow .............................................................................................................................................. 40

5.3 Sensor Calibration and Verification ......................................................................................................................... 40

5.3.1 User-prepared Calibration.............................................................................................................................. 41

5.3.2 Calibration with StablCal

5.4 Instrument Verification............................................................................................................................................. 43

5.4.1 Dry Verification............................................................................................................................................... 44

5.4.2 Wet Verification .............................................................................................................................................. 45

5.5 Calibration and Verification History ......................................................................................................................... 46

Section 6 Maintenance ................................................................................................................................................ 47

6.1 Maintenance Schedule ............................................................................................................................................ 47

6.2 Removing a Sensor from the System...................................................................................................................... 47

6.3 Reinstalling a Sensor on the System....................................................................................................................... 47

6.4 Cleaning .................................................................................................................................................................. 48

6.4.1 Cleaning the Controller .................................................................................................................................. 48

6.4.2 Cleaning the Photocell Window ..................................................................................................................... 48

6.4.3 Cleaning the Turbidimeter Body and Bubble Trap......................................................................................... 48

6.4.4 Replacing the Lamp Assembly ...................................................................................................................... 49

6.5 Fuse Replacement .................................................................................................................................................. 51

® ...............................................................................................................................................................42

Section 7 Troubleshooting.......................................................................................................................................... 52

7.1 Error Codes ............................................................................................................................................................. 52

7.2 Warnings ................................................................................................................................................................. 52

7.3 Event Codes ............................................................................................................................................................ 54

Section 8 Replacement Parts and Accessories........................................................................................................ 55

Section 9 How to Order............................................................................................................................................... 57

9.1 Information Required ............................................................................................................................................... 57

9.2 International Customers .......................................................................................................................................... 57

9.3 Technical and Customer Service (U.S.A. only) ....................................................................................................... 57

Section 10 Repair Service........................................................................................................................................... 58

Section 11 Limited Warranty ...................................................................................................................................... 59

Section 10 Compliance Information .......................................................................................................................... 60

Appendix A ModBUS Register Information .............................................................................................................. 62

Index ............................................................................................................................................................................. 70

Page 4

Section 1 Specifications

Specifications are subject to change without notice.

Table 1 Turbidimeter Specifications

Nephelometric light scatter at 90 degrees relative to the incident light beam. The incident light

Method of Detection

Range 0.001–100 nephelometric turbidity units (NTU)

beam is composed of a tungsten filament light source with a color temperature between 2200 and 3000K.

Accuracy

Linearity

Resolution (Displayed) 0.0001 NTU up to 9.9999 NTU; 0.001 NTU from 10.000 to 99.999 NTU

Repeatability Better than ±1.0% of reading or ±0.002 NTU, whichever is greater for each range.

Response Time

Sample Flow Required 200 to 750 mL/minute (3.2 to 11.9 gal/hour)

Sensor Storage Temperature

Operating Temperature 0 to 50 °C (32–122 °F) for single sensor system, 0 to 40 °C (32–104 °F) for two sensor system

± 2% of reading or ± 0.015 NTU (whichever is greater) from 0 to 40 NTU; ± 5% of reading from 40 to 100 NTU

Better than 1% 0–40 NTU on formazin. Allows for accurate calibration at high turbidity values. Temperature dependent ±2 °C.

For a full-scale step change, initial response in 1 minute, 15 seconds. Varies with flow rate, see the table below. The response time is also dependent on the signal averaging time, which is user selectable.

Flow Rate

% Step Change

750 500 250

10 1¼ minutes 1½ minutes 2½ minutes 50 2 minutes 2½ minutes 6 minutes 90 3½ minutes 3½ minutes 9 minutes 99 4 minutes 5 minutes 12 minutes

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

Sample Temperature Range 0 to 50 °C (32–122 °F)

Operating Humidity 5 to 95% non-condensing

Power Requirements 12 V dc ±5%, 12.5 watts maximum

Sample Inlet Fitting ¼-inch NPT female. ¼-inch compression fitting (supplied)

Drain Fitting ½-inch NPT female, ½-inch hose barb (supplied)

Signal Average (Filter) Time no averaging, 6, 30, 60, and 90 seconds, user selectable. Default is 30 seconds.

Sensor Dimensions Turbidimeter body and cap: 25.4 x 30.5 x 40.6 cm (10 x 12 x 16 inches)

Sensor Cable Length 2 m (6.6 ft); Optional 7.62 m (25 ft) extension cable. Maximum cable length is 9.62 m (31.6 ft).

Sensor Cable Rating

Mounting Options Wall; floor stand

Shipping Weight 1720E Turbidimeter and Controller: 6.31 kg (13.5 lb); 1720E Turbidimeter only: 4.71 kg (10 lb)

Cable: 105 °C, 300 V, PVC jacket Wires: 22 AWG, PVC jacket

Page 5

Table 1 Turbidimeter Specifications (continued)

1. StablCal

Calibration Methods

2. Formazin – user-prepared primary or wet calibration of the instrument

3. Multi-sensor calibration – Performed with a specialized calibration procedure for up to eight

sensors on a single set of fresh StablCal

1. StablCal

Verification (Wet) Method

range of measurement. For regulatory verification, standards of 0.1. 0.3. 0.5 and 1.0 NTU are available.

2. Formazin – fresh user-prepared standard

1. ICE-PIC™ Verification Module with factory-set values of 20.0 or 1.0 ±25%. Unique value is

Verification (Dry) Method

assigned when dry verification is done immediately after calibration and is used as pass/fail criteria for subsequent verifications.

1. Mandatory before calibration

Recommended Cleaning Intervals

2. Optional before verification

3. Mandatory upon verification failure

Languages English (default), German, Spanish, Nederlands

Installation Environment Indoor

Primary Compliance Method USEPA 180.1; Hach Method 8195; ASTM D 6698; Standard Methods 2130B

(stabilized formazin) – primary or wet calibration of the instrument

standards.

(stabilized formazin) – recommended for verification in the appropriate application

Specifications

Limit of Detection 0.0032 NTU (according to criteria specified by ISO 15839)

Table 2 Controller Specifications

Component Description

Controller Operating Temperature

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

Pollution Degree/Installation Category II; II

Outputs

Relays

Microprocessor-controlled measuring unit with measured value display, temperature display (for some parameters), and menu-driven system

–20 to 60 °C (–4 to 140 °F); 95% relative humidity, non-condensing with sensor load <7 W; –20 to 40 °C (–4 to 104 °F) with sensor load <25 W

100–230 V ac ±10%, 50/60 Hz; Power: 11 W with 7 W sensor load, 35 W with 25 W sensor load

Two (Analog outputs, each selectable for 0–20mA or 4–20 mA), maximum impedance 500 ohm. Output span programmable over any portion of the 0–100

NTU range. Optional digital network connection

. Infrared Data Acquisition (IrDA).

Three SPDT, user-configurable contacts rated 100–230 V ac, 5 Amp resistive maximum.

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)

1. See Replacement Parts and Accessories on page 55.

Page 6

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.

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.

Note: Information that requires special emphasis.

Precautionary Labels

Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed.

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).

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 turbidity reading if connected to a single sensor, or two readings when two sensors are connected.

The 1720E Turbidimeter is a continuous-reading nephelometric turbidimeter designed for low-range turbidity monitoring. This process turbidimeter is capable of measuring turbidity from 0.001 to 100.0 NTU. Calibration is based on formazin, the primary turbidity reference standard adopted by the APHA Standard Methods for the Examination of Water and Wastewater and the U.S. Environmental Protection Agency (EPA) and on StablCal standard.

which is also recognized as a primary

Page 7

2.3 Theory of Operation

Figure 1 90 Degree Detector

General Information

The 1720E Turbidimeter measures turbidity by directing a strong beam of collimated light from the sensor head assembly down into the sample in the turbidimeter body. Light scattered at 90° relative to the center line of incident light by suspended particles in the sample is detected by the submerged photocell (see Figure 1).

The amount of light scattered is proportional to the turbidity of the sample. If the turbidity of the sample is negligible, little light will be scattered and detected by the photocell and the turbidity reading will be low. High turbidity, on the other hand, will cause a high level of light scattering and result in a high reading.

Sample enters the turbidimeter body and flows through the baffle network of the bubble trap. The flow allows bubbles to either cling to surfaces of the baffle system or rise to the surface and vent to atmosphere. After traveling through the bubble trap, sample enters the center column of the turbidimeter body, rises into the measuring chamber and spills over the weir into the drain port. A reading is taken once per second.

Page 8

Section 3 Installation

DANGER Only qualified personnel should conduct the installation tasks described in this section of the manual. The 1720E/sc100 product configuration is not intended for installation in hazardous locations.

Figure 2 Controller Mounting Components

sc100

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

2. Mounting foot for panel mounting (2),

Cat. No. 1000B4F3222

3. Bracket for panel and pipe mounting, Cat. No. 1000C4F3217-101

4. Gasket for panel mounting, rubber, Cat. No. 1000A4F3249-101

5. Hex nut, M6 (4), Cat. No. 5867300 10. Pan head screws (4), M6 x 1.0 x 150 mm, Cat. No. 5867600

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

8. Pan head screws (4), M6 x 1.0 x 20 mm, Cat. No. 58674-00

9. Pan head screws (4), M6 x 1.0 x 100 mm, Cat. No. 5867500

Table 3 Customer-supplied Items

Item

14-AWG wire for electrical power connections in conduit or if allowed by local electrical codes, 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 Sun shield for mounting configurations where the sun strikes the front of the display (available from the manufacturer, order

separately). See Figure 8 on page 11. Common hand tools

3.1 Mechanical Installation

Install in an environment that is protected from corrosive fluids. The sensor is adversely affected by ClO corrosive liquids or gasses.

. Install the sensor in an area well ventilated from any

Page 9

3.1.1 Controller Dimension Illustrations

Figure 3 Controller Dimensions

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

sc100

Installation

144.0 mm (5.67 inches)

Figure 4 Controller Mounting Dimensions

144.02 mm (5.67 inches)

72.01 mm

(2.84 inches)

72.01 mm

(2.84 inches)

144.02 mm

(5.67 inches)

40.14 mm

(1.58 inches)

80.27 mm

(3.16 inches)

40.14 mm (1.58 inches)

M6 x 1.0

80.27 mm

(3.16 inches)

Page 10

Installation

Figure 5 Panel Mount Cut-out Dimensions

75 mm 2.955 inches

(ref only)

144 mm 5.67 inches

(ref only)

144 mm

5.67 inches (ref only)

72 mm

2.835 inches (ref only)

66.67 mm 2.625 inches

Figure 6 Conduit Hole Dimensions

75.07 mm 2.955 inches

28.57 mm 1.125 inches

135 mm

5.31 inches

67.4 mm

2.65 inches

133 mm 5.25 inches

144 mm 5.67 inches

68.96 mm 2.715 inches

28.57 mm 1.125 inches

150 mm

5.91 inches

99.31 mm

3.91 inches

50.8 mm

2.00 inches

6.35 mm 0.25 inch

15.24 mm 0.60 inch

25.4 mm 1.00 inches25.4 mm 1.00 inches

5.00 inches

(ref only)

127 mm

Page 11

3.1.2 Using the Optional Sun Shield

The optional sun shield was designed to increase the readability of the display by screening it from direct sunlight. See Replacement Parts and Accessories on

page 55 for ordering information.

Figure 7 Sun Shield Kit Components

Installation

1. Sun shield 5. Pipe mounting brackets (2), includes items 6 and 7, Cat. No. 9H1079

2. Pan head screws, M6 x 1.0 x 12 mm (6),

Cat. No. 200-1025

3. Lock washers, ¼-inch I.D. (2), Cat. No. 8H1336 7. Square nut,

4. Hex nuts, M6 x 1.0 (2), Cat. No. 5867300 8. Uni-strut, 27 cm (10.5 inch) length, Cat. No. 276F1227

6. Hex/slotted head screw,

number 5)

/16-inch (supplied with item number 5)

/16-inch x 1.0-inch (supplied with item

Figure 8 Mounting the Controller in the Sun Shield

1. Sun shield 4. Hole pattern for mounting controller 7. Slide mounting brackets into the

2. Uni-strut (rotate 90° as required) 5. Pipe (vertical or horizontal as required)

3. Pan head screw, lock washer (2 each) 6. Hex/slotted head screw and square nut

uni-strut as shown. Place the mounting brackets around the pipe and fasten the hardware.

Page 12

Installation

3.1.3 Mounting the Controller

Attach the controller to a rail or wall or mount it in a panel. Supplied mounting hardware is shown in Figure 9, Figure 10, and Figure 11.

Figure 9 Vertical or Horizontal Pipe 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

Figure 10 Wall Mounting the Controller

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

Page 13

Figure 11 Panel Mounting the Controller

Installation

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

2. Gasket, rubber, panel mount, Cat. No. 1000A4F3249-101 8. Hex nut (4), Cat. No. 5867300

3. Panel (maximum thickness is 9.5 mm (3/8 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

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

procedure below.

To remove the sensor connectors before inserting the controller enclosure into the panel cut-out:

1. Disconnect power to the controller.

1. Disconnect the wires at terminal block J5, see Figure 21 on page 21.

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 21 on page 21.

Page 14

Installation

DATA

OUT 2

OUT 1

PCB

CONNECTOR

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

DATA+DATA

OUT 2+OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+V+

OUT 1+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

NETWORK

INTERFACE

CARD

3.2 Electrical Installation

DANGER The instrument must be installed by qualified technical personnel for adherence to all applicable electrical codes. The 1720E/sc100

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 12 for barrier removal information.

product configuration is not intended for installation in hazardous locations.

3.2.1 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 13 on page 15 for strain relief and conduit opening sealing plug information. See section 3.2.3 on page 15 for wiring information.

3.2.2 Installation Using a Power Cord

DANGER Use of power cords is not permitted in hazardous locations.

Where permitted by local electrical codes, 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 55. See Figure 13 on page 15 for strain relief and conduit opening sealing plug assembly. See section 3.2.3 on page 15 for wiring information.

Figure 12 Removing Voltage Barrier

NETWORK

INTERFACE

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

CARD

DATA

– DATA

SERVICE REQUEST

3 4

PROBES

PCB

CONNECTOR

ANALOG OUTPUTS

GND

OUT 2

– OUT 2

SHIELD/CHASSIS GND

3 4

OUT 1

– OUT 1

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

Page 15

Figure 13 Using the Optional Strain Relief and Conduit Plug

Installation

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

Figure 14 Proper Wire Preparation and Insertion

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

3.2.3 Wiring for Power at the Controller

Wire the instrument for line power by hard-wiring in conduit or by wiring to a power cord if local code allows. Regardless of the type of wire used, the connections are made at the same terminal. A local disconnect designed to meet local electrical code is required and must be identified for all types of installation. See Figure 16 and Figure 17 on page 17 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 12 on page 14).

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 14) and insert each wire into the terminal according to Table 4. 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, see Replacement Parts and Accessories on page 55.

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

Page 16

Installation

Table 4 Power Wiring Information

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

Figure 15 Wiring Connections

312

CARD

11 10

NONO

NCNCNC

COMCOMCOM RELAYCRELAYBRELAYA

NETWORK

INTERFACE

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

Page 17

Figure 16 Local Disconnect for Power Cord

RELAYC

Installation

CARD

RELAYBRELAYA

NCNCNC

NONO

COMCOMCOM

RELAYC

NETWORK

INTERFACE

1. Power terminal 2. Power cord strain relief

Figure 17 Local Disconnect for Hard-wired Line Power

NETWORK

INTERFACE

CARD

1. Power terminal 2. Conduit strain relief

NCNCNC

NONO

COMCOMCOM

RELAYCRELAYBRELAYA

Page 18

Installation

NCNCNC

COMCOMCOM

NONO

RELAYCRELAYBRELAYA

NETWORK

INTERFACE

CARD

J5J5

3.3 Alarms and Relays

The controller is equipped with three unpowered relays rated 100–230 V ac, 50/60 Hz, 5 amp resistive maximum.

3.3.1 Connecting the Relays

The relay connector accepts 18–12 AWG wire (as determined by load application). Wire gauge less than 18 AWG is not recommended.

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: ac power terminals are designed for single wires. Do not use more than one wire in each terminal.

The controller contains three relays designed for use with high voltage (greater than 30V-RMS and 42.2V-PEAK or 60 V dc). Refer to Figure 18 for connection information. The wiring is not designed for low voltage connections. Relay must not be powered from the same wiring used to power the controller. See section 4.6 on page 34 for relay setup details.

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.

Figure 18 Alarm and Relay Connections

NETWORK

INTERFACE

CARD

J5J5

J5 J6 J7

RELAY A RELAY B RELAY C

NCNCNC

NONO

COMCOMCOM

RELAYCRELAYBRELAYA

3.3.2 Connecting the Analog Outputs

Disconnect Power

Two isolated analog outputs (1 and 2) are provided, see Figure 19. Each output can be set to 0–20 or 4–20 mA, and can be assigned to represent the measured parameter or secondary measurement such as temperature. Make connections with twisted-pair shielded wire and connect the shield at the controlled component end or at the control loop end. Do not connect the shield at both ends of the cable. Use of non-shielded cable may result in radio frequency emission or susceptibility levels higher than allowed. Maximum loop resistance is 500 ohm. Refer to

section 4.5 on page 32 for output software setup.

Page 19

Make wiring connections at the analyzer end as shown in Figure 19.

RELAYC

RELAYA

DATA

OUT 2

OUT 1

ANALOG OUTPUTS

PCB

CONNECTOR

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

NCNCNC

COMCOMCOM

NONO

RELAYCRELAYCRELAYBRELAYARELAY A

NETWORK INTERFACE

CARD

DATA+DATA

OUT 2+OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+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

J5J5

Table 5 Output Connections at Terminal Block J6

Recorder Wires Circuit Board Position

Output 2 + 1 Output 2 – 2

Shield 3 Output 1 + 4 Output 1 – 5

Figure 19 Analog Output Connections

Installation

CARD

J5J5

NETWORK INTERFACE

1 2 3 4 5

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 20. Retain the connector cap to seal the connector opening in case the sensor must be removed.

The 1720E sensor cable may be extended by a maximum of 7.62 m (25 ft), see Replacement Parts and Accessories on page 55.

Modify the controller for sensor hard-wiring as follows:

1. Remove all power to the controller.

2. Open the controller cover.

PCB

CONNECTOR

PROBES

ANALOG OUTPUTS

RELAYBRELAYA

1 2 3 4 5 6

1 2 3 4 5

NCNCNC

NONO

COMCOMCOM

RELAYC

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

DATA

– DATA

SERVICE REQUEST

GND

OUT 2

– OUT 2

SHIELD/CHASSIS GND

OUT 1

– OUT 1

Page 20

Installation

RELAYA

DATA

OUT 2

OUT 1

PCB

CONNECTOR

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

3. Disconnect and remove the existing wires between the quick connect and terminal block J5, see Figure 21 on page 21.

4. Remove the quick connect fitting and wires and install the threaded plug on the opening to maintain the environmental rating.

Table 6 Wiring the Sensor at Terminal Block J5

Terminal Number Terminal Designation Wire Color

1 Data (+) Blue 2 Data (–) White 3 Service Request No Connection 4 +12 V dc Brown 5 Circuit Common Black 6 Shield Shield (grey wire in existing quick disconnect fitting)

Figure 20 Attaching the Sensor using the Quick-connect Fitting

From Probe

NETWORK

INTERFACE

CARD

DATA

– DATA

SERVICE REQUEST

3 4

5 6

1 2 3 4 5

NCNCNC

NONO

COMCOMCOM

RELAYCRELAYBRELAYA

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

GND

OUT 2 – OUT 2 SHIELD/CHASSIS GND

OUT 1

– OUT 1

PROBES

J5J5

PCB

CONNECTOR

5. Cut the connector from the sensor cable.

6. Reinstall the plug on the sensor access opening to maintain the

environmental rating.

7. Strip the insulation on the cable back 1-inch. Strip ¼-inch of each individual

ANALOG OUTPUTS

wire end.

8. Wire as shown in Table 6 .

Page 21

9. Pass the cable through conduit and a conduit hub or a strain relief fitting and

DATA

OUT 2

OUT 1

PCB

CONNECTOR

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

NCNCNC

COMCOMCOM

NONO

RELAY3RELAY 2RELAY1

DATA+DATA

OUT 2+OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+V+

OUT 1+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

NETWORK

INTERFACE

CARD

10. Close and secure the cover.

Figure 21 Hard-wiring the Sensor

NETWORK INTERFACE

CARD

J5J5

Installation

an available access hole in the controller enclosure. Tighten the fitting.

DATA

– DATA

SERVICE REQUEST

3 4

5 6

1 2 3 4 5

NCNCNC

NONO

COMCOMCOM RELAY3RELAY 2RELAY1

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

GND

OUT 2 – OUT 2 SHIELD/CHASSIS GND

OUT 1 – OUT 1

PCB

CONNECTOR

PROBES

ANALOG OUTPUTS

3.5 Connecting the Optional Digital Output

At this time, the manufacturer supports ModBUS RS485 and ModBUS RS232 communication protocols. The optional digital output card is installed in the location indicated in Figure 22 on page 22. Terminal block J1 provides user connection to the optional network card. The terminal connection is based on the selected network card. Refer to the instructions supplied with the network card for more details.

Table 7 Network Connections at Terminal Block J1

Terminal Number ModBUS RS485 ModBUS RS232

1In + — 2In – — 3Out + — 4Out – — 5 Common Common 6 No connection No connection 7 Shield Shield

Page 22

Installation

DATA

OUT 2

OUT 1

PCB

CONNECTOR

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

NCNCNC

COMCOMCOM

NONO

RELAYCRELAYBRELAYA

NETWORK

INTERFACE

CARD

DATA+DATA

OUT 2+OUT 2

– DATA

– OUT 2

SERVICE REQUEST

SHIELD/CHASSIS GND

+V+

OUT 1+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

Figure 22 Network Card Position in the Controller

NETWORK

INTERFACE

CARD

PCB

CONNECTOR

PROBES

ANALOG OUTPUTS

1 2 3 4 5 6

1 2 3 4 5

NCNCNC

NONO

COMCOMCOM

RELAYCRELAYBRELAYA

FIELD WIRING

INSULATION MUST

BE RATED TO

80° C MINIMUM

DATA – DATA SERVICE REQUEST

GND

OUT 2 – OUT 2 SHIELD/CHASSIS GND

OUT 1

– OUT 1

1. J2—Network card header 2. Mounting hole (3) 3. Network card placement 4. J1 Terminal

Page 23

Installation

Figure 23 1720E Dimensions

POWER

STATUS

127.8 mm

(5.0 inches)

255.3 mm (11.05 inches)

217.2 mm (8.55 inches)

143.2 mm (5.64 inches)

40.6 mm

(1.60 inches)

72.04 mm (2.84 inches)

107.95 mm (4.25 inches)

343.67 mm (13.53 inches)

19.72 mm (0.78 inches)

238.35 mm (9.38 inches)

312.48 mm (12.30 inches)

273.05 mm (10.75 inches)

157.00 mm

(6.18 inches)

172.4 mm (6.79 inches)

2 Slots for

0.25 fastener² Sample Inlet

¼-NPT to Compression fitting¼-

Cable 2 meters (6.6 feet)

Sample Drain

NPT to ½-ID Tubing hose Barb½-

Service Drain

1.00 I.D.

164.2 mm (6.46 inches)

193.7 mm (7.625 inches)

195.6 mm (7.70 inches)

Allow at least 254 mm (10.00 inches) above the instrument for removal of the head assembly.

Page 24

Installation

3.6 Turbidimeter Installation Information

The turbidimeter body is designed for wall-mounting (although it may be mounted on the optional floor stand). The turbidimeter sensor must be mounted within six feet of the controller unless an extension cable is used. Maximum cable length is 9.6 m (31 feet).

3.6.1 Mounting the Turbidimeter Body

Locate the turbidimeter as close to the sampling point as possible. A shorter distance for the sample to travel results in a faster response time.

Clean the turbidimeter body and bubble trap before installation using the instructions supplied in section 6.4.3, Cleaning the Turbidimeter Body and Bubble

Trap on page 48. Slotted mounting brackets are integral parts of the turbidimeter

body. Install customer-supplied hardware appropriate for the installation environment using the criteria detailed below:

• Install in a location that is isolated from vibration.

• Allow at least 22 cm (approximately 10 inches) clearance for removal of the

head assembly and bubble trap cover from the top of the turbidimeter body.

• Leave enough room below the turbidimeter body to remove the bottom plug and to place a container under the drain when calibrating or cleaning.

Note: Make sure the top of the turbidimeter body is level.

• Install two ¼-20 bolts 10-3/4 inches apart (on center). Leave at least ¼-inch of the bolt head exposed.

• Make sure the bolts are installed level.

Slide the slotted mounting brackets of the turbidimeter body onto the bolts.

3.6.2 Installing the Head Assembly

After the turbidimeter body has been mounted, install the bubble trap cover, then place the head assembly on the turbidimeter body with the label facing the front. Move the head assembly back and forth slightly to ensure it is properly seated on the body of the instrument. Failure to properly seat the head will result in light leakage and erroneous readings.

The rear portion of the head assembly has a molded “lip” which may be used to hang the head assembly on the turbidimeter body edge for routine maintenance.

3.7 Installing a Sample Line

DANGER This turbidimeter is not designed for use in hazardous locations or with samples that are flammable or explosive in nature. If any sample solution other than water is used in this product, test the sample/product compatibility to ensure user safety and proper product performance.

One-fourth inch O.D. rigid or semi-rigid tubing is recommended for sample lines. Run them as directly as possible between the turbidimeter body and the sampling point to minimize sample flow lag time.

Install sample line taps into larger process pipes to minimize interference from air bubbles or pipeline bottom sediment. A tap projecting into the center of the pipe is ideal. Figure 24 shows examples of sample tap installations.

Note: When setting the flow rate, take care to avoid sweeping air “micro-bubbles” through

the internal bubble trap. Observe the sample flow inside the turbidimeter body. If small air bubbles can be seen flowing up through the center, reduce the flow rate.

Page 25

Figure 24 Sampling Techniques

Installation

Air (Typical)

Sediment (Typical)

Poor

3.8 Sample Connections

Sample inlet and drain connections are made on the turbidimeter body. The sample inlet fitting installed in the body is a ¼-inch NPT fitting. One additional fitting supplied with the instrument is a ½-inch NPT-to-hose fitting for use with ½-inch ID flexible plastic tubing on the drain.

Note: For samples with high solids content (high turbidity), operate at the highest flow rate possible. For samples with low solids content (low expected turbidity), operate at a low flow rate (200–300 mL/min).

Figure 25 Sample Connections

The required flow rate is 200 to 750 mL/minute (4.0 to 11.9 gal/hour). Flow rate into the turbidimeter may be controlled with a flow restriction device on the inlet line. Flow rates below 200 mL/min will reduce response time and cause inaccurate readings. Flow rates above 750 mL/min will cause the turbidimeter to overflow, indicating the flow rate is too high.

Poor

Good Best

x ¼-inch compression

STATUS

POWER

1. Sample Inlet, ¼-28 NPT x ¼-inch Compression fitting 2. Drain, ½-inch NPT fitting 3. Service Drain

Page 26

Section 4 Operation

4.1 Using the Keypad

The front of the controller is shown in Figure 26. The keypad consists of the eight keys described in Table 8 .

Figure 26 Front of the Controller

sc100

1. Instrument Display 4. Right, Left, Up, and Down keys 7. Enter key

2. Back key 5. IrDA (Infrared Data Acquisition) window

3. Menu key 6. Home key

Table 8 Controller Key Functions/Features

Number Key Function

2 Move back one level in the menu structure.

Move to the main menu from other menus. This key is not active in menus where a selection or other input must be made.

4 Navigate through the menus, change settings, and increment and decrement digits.

6 Accept an input value, updates, or accepts displayed menu options.

Move to the Main Measurement screen from any other screen. This key is not active in menus where a selection or other input must be made.

Page 27

4.2 Controller Display Features

When the controller is in measurement mode, measurements for each connected sensor are displayed.

The display will flash on startup, when the hold outputs function has been activated, and when the filter function (signal average) is changed to a different value.

An active system warning will cause the warning icon (a triangle with an exclamation point inside) to be displayed on the right side of the display.

Figure 27 Display

Operation

SENSOR NAME

0.023

NTU

1. Status bar. Indicates the sensor name and status of relays. The relay letter is displayed when the relay is energized.

2. Main measurement 5. Warning icon area

3. Secondary measurement/output information 6. Measurement units

4.2.1 Important Key Presses

OUTPUT1: 11.23 mA

4. Energized relay indicator

• Press the HOME key then the RIGHT or LEFT key to display two readings

when two sensors are connected. Continue to press the RIGHT or LEFT key to toggle through the available display options as shown below.

RTC:MM/DD/YY

24:00:00

OUTPUT1: 11.23 mA

SENSOR NAME:

0.023

ppm

OUTPUT1: 11.23 mA

MAIN MENU

SENSOR DIAG SENSOR SETUP

SYSTEM SETUP

TEST/MAINT

NTU

SENSOR NAME:

0.031

OUTPUT1: 11.23 mA

MAIN MEASURE

SENSOR NAME:

NTU

SENSOR NAME:

0.023 NTU

0.031 NTU

SENSOR NAME

Turbidity:

0.023 NTU

TEMP:

22.9°C

SENSOR NAME

Turbidity:

0.031 NTU

TEMP:

22.9°C

• Press the UP and DOWN keys to toggle the status bar at the bottom of the

measurement display to display the output information.

• In Menu mode, an arrow may appear on the right side of the display to indicate that more items are available. Press the UP or DOWN key (corresponding to the arrow direction) to display additional menus.

SYSTEM SETUP

OUTPUT SETUP RELAY SETUP NETWORK SETUP

DISPLAY SETUP

SYSTEM SETUP

DISPLAY SETUP SECURITY SETUP LOG SETUP

CALCULATION

SYSTEM SETUP

SECURITY SETUP LOG SETUP CALCULATION

ERROR HOLD MODE

Page 28

Operation

4.3 Instrument Setup

4.3.1 Software Text Abbreviation Conventions

Abbreviation Meaning Abbreviation Meaning

Adj Adjust P/F Pass/Fail Cal Calibration Pass Password

Cont. Continue Preped Prepared

Cyl Cylinder SN Serial Number Dflt Default Std Standard

Diag Diagnostic Temp Temperature

Int Internal Ver Verification

Meas. Measurement Xfer Transfer

4.3.2 Adjusting Display Contrast

Step Select Menu Level/Instructions Confirm

— ADJ CONTRAST

MAIN MENU or Main Measurement Screen —

MAIN MENU —

SYSTEM SETUP

DISPLAY SETUP

(+0–50)

Page 29

Operation

4.3.3 Specifying the Displayed Language

Step Select Menu Level/Instructions Confirm

Main Menu or Main Measurement Screen —

MAIN MENU —

SYSTEM SETUP

DISPLAY SETUP

LANGUAGE

select language

4.3.4 Setting the Time and Date

4.3.4.1 Setting the Time

Note: The time is available only in 24-hour (military) format.

Step Select Menu Level/Instructions Confirm

MAIN MENU —

SYSTEM SETUP

DISPLAY SETUP

SET DATE/TIME

highlight TIME

select character to edit

choose appropriate number

Main Menu or Main Measurement Screen —

Page 30

Operation

4.3.4.2 Setting the Date Format and Date

Step Select Menu Level/Instructions Confirm

— highlight DATE FORMAT

choose appropriate date format

MAIN MENU —

SYSTEM SETUP

DISPLAY SETUP

SET DATE/TIME

Highlight DATE

select character to edit —

choose appropriate number

Main Menu or Main Measurement Screen —

4.4 Changing the Sensor Name

Step Select Menu Level/Instructions Confirm

highlight sensor of interest if more than one sensor is attached

choose appropriate alpha/numeric digit

Main Menu or Main Measurement Screen —

MAIN MENU —

SENSOR SETUP

CONFIGURE

EDIT NAME

select character to edit —

Page 31

Operation

4.4.1 Setting Up System Security

The sc100 has a passcode feature to restrict unauthorized access to Network Setup, Security Setup, Log Setup, and Test/Maint menus. In addition, the passcode also regulates function selection for relay options. The passcode is factory set to sc100 (the five digits must be followed by a space to remove the trailing asterisk). The passcode may be changed, see section 4.4.1.1.

The following two options are available:

Disabled: All configuration settings and calibrations can be changed. This is the default setting.

Enabled: All configuration settings can be displayed but not changed. Network Setup, Security Setup, Log Setup, and Test/Maint menus cannot be accessed without the passcode.

Step Select Menu Level/Instructions Confirm

— SET PASSCODE

Main Menu or Main Measurement Screen —

MAIN MENU —

SYSTEM SETUP

SECURITY SETUP

highlight ENABLED

4.4.1.1 Editing the Passcode

If the passcode is enabled, it may be edited. The passcode can consist of up to six digits (alpha and/or numeric and available characters). If a passcode is forgotten, obtain the Master passcode from the Technical Consulting Services Department, see Technical and Customer Service (U.S.A. only) on page 57.

Step Select Menu Level/Instructions Confirm

MAIN MENU —

SYSTEM SETUP

highlight SECURITY SETUP

ENTER (current or default) PASSCODE —

EDIT PASSCODE

Page 32

Operation

Step Select Menu Level/Instructions Confirm

Change the existing passcode

Main Menu or Main Measurement Screen —

4.5 Output Options

The controller provides two isolated analog outputs (Output 1 and Output 2). Customize the outputs using the table in section 4.5.1 on page 32.

4.5.1 Output Setup Menu (from System Setup)

1. Select OUTPUT 1 or 2

SELECT SOURCE

Press ENTER to access a list of all connected sensors. Choose the sensor to associate with the output.

SET PARAMETER

Highlight the appropriate displayed parameter and press ENTER

SET FUNCTION

Select LINEAR CONTROL for current output to track the measurement value. Select PID CONTROL for the sc100 to operate as a PID controller.

SET TRANSFER

Each analog output is normally active, responding to the measured value of its assigned parameter. However, during calibration, each output can be transferred to this preset transfer value. Default: 4mA; Range: 0–20

SET FILTER

Allows the user to average the analog outputs over time Default: 0; Range: 0–120 seconds

SCALE 0 mA/4 mA

Select 0 mA or 4 mA for minimum current (outputs will be set to 0–20 mA or 4–20 mA).

ACTIVATION

FUNCTION set to LINEAR CONTROL If LINEAR CONTROL was selected in SET FUNCTION, set the low and the high values for the current output here.

Defaults: Low = 0; High = 100; Low Value Range: 0–100, High Value Range: 0–100. FUNCTION set to PID CONTROL If PID CONTROL was selected in SET FUNCTION, configure the PID Control as follows:

1. Set MODE: AUTO or MANUAL. Manual output default: 100%

2. Set PHASE: DIRECT or REVERSE controller operation.

3. SET SETPOINT: enter the set point the PID control will control the process to. Default: 100; Range: 0–100

4. PROP BAND: control the proportional band for the PID control. Default: 5.00; Range: 0–1000

5. INTEGRAL: control the integral action time period in minutes. Range: 0–999

6. DERIVATIVE: control the settings for the rate control. Range: 0–999

Page 33

Operation

4.5.2 Hold/Transfer Outputs

When cleaning or servicing the instrument, the analog outputs can be held at the last measured values. To hold the output until released:

Step Select Menu Level/Instructions Confirm

— SET OUTMODE

Select HOLD OUTPUTS or XFER OUTPUTS

MAIN MENU —

TEST/MAINT

Enter Passcode if enabled

HOLD OUTPUTS

SET CHANNELS

Select ALL or 1720E

ACTIVATION

— LAUNCH

Main Menu or Main Measurement Screen

reading will

flash

During calibration, the analog outputs can remain active, be held, or be transferred to a preset mA value. When output hold or transfer is enabled during a calibration, the hold or transfer is automatically released when calibration is completed. See section 5.3, Sensor Calibration and Verification on page 40.

4.5.3 Release Outputs

Step Select Menu Level Confirm

MAIN MENU —

TEST/MAINT

HOLD OUTPUTS

ACTIVATION

Page 34

Operation

Step Select Menu Level Confirm

— RELEASE

Main Menu or Main Measurement Screen —

4.6 Relay Options

Step Select Menu Level Confirm

— Customize the options using the information in section 4.6.1 —

4.6.1 Relay Setup Menu (from System Setup)

1. Select Relay A, B, or C

MAIN MENU —

SYSTEM SETUP

RELAY SETUP

SELECT SOURCE

Choose from the available options (none, installed sensors, real time clock (RTC)).

SET PARAMETER

Choose from the available options.

SET FUNCTION

Source set to sensor Alarm: Operates relays in response to the measured parameter. Contains separate High and Low Alarm points, deadbands, and

ON/OFF delay. Defaults: Low = 0.000 NTU, high = 100.00 NTU, low deadband = 5.000 NTU, high deadband = 5.000 NTU, on/off delays default to zero seconds; Range: 0–999 sec.

Feeder Control: Operates in response to the measured parameter. Can be set for phasing, set point, deadband, overfeed timer, and ON/OFF delay.

Event Control: Controls a cleaning system (or equivalent) on a timed basis. Warning: Activated when the analyzer detects a sensor warning.

Source set to RTC

Timer: Sets the timer for a cleaning system (or equivalent). Controls the output hold, interval, duration and off delay.

SET TRANSFER

Normally, each control or alarm relay is active, responding to the measured value of its assigned parameter. During calibration, however, the relay can be transferred to a preset on/off state to suit the application requirements. Select Energize or De-energize and press ENTER.

Page 35

Operation

4.6.1 Relay Setup Menu (from System Setup) (continued)

ACTIVATION

Function set to ALARM

Sets the value where the relay will turn on in response to decreasing measured value. For example: if the

LOW ALARM

HIGH ALARM

LOW DEADBAND

HIGH DEADBAND

OFF DELAY Sets a time to delay the relay from normally turning off. Off Delay Range: 0–999 seconds ON DELAY Sets a time to delay the relay from normally turning on. On Delay Range: 0–999 seconds

Function set to FEEDER CONTROL

PHASE

SET SETPOINT Sets the value where the relay will turn on. Default: 100 NTU; Range: 0–100

DEADBAND

OVERFEED TIMER

OFF DELAY Sets a time to delay the relay from normally turning off. Default: 0 seconds; Range: 0–999 seconds ON DELAY Sets a time to delay the relay from normally turning on. Default: 0 seconds; Range: 0–999 seconds

Function set to EVENT CONTROL

PHASE

SET SETPOINT Sets the value where the relay will turn on. Default: 100; Range: 0–100

DEADBAND

OnMax TIMER Sets the time to limit the time the relay can remain “on.” Default: 0 seconds; Range: 0–999 seconds OffMax TIMER Sets a time to delay the relay from normally turning off. Default: 0 seconds; Range: 0–999 seconds OnMin TIMER Sets the time to limit the time the relay can remain “on.” Default: 0 seconds; Range: 0–999 seconds OffMin TIMER Sets the time to limit the time the relay can remain “off.” Default: 0 seconds; Range: 0–999 seconds

Function set to TIMER CONTROL (RTC selected in SELECT SOURCE)

HOLD OUTPUTS Set OUTMODE to select output hold operation and select the channels that cause the outputs to be held. INTERVAL Set the off time for the relay. Default: 5 minutes; Range: 0–999 minutes DURATION Set the on time for the relay. Default: 30 seconds; Range: 0–999 seconds

OFF DELAY

Function set to WARNING CONTROL

WARNING LEVEL

low alarm is set for 1.0 and the measured value drops to 0.9, the relay will be activated. Range: 0.00–100 NTU

Sets the value where the relay will turn on in response to increasing measured value. For example: if the high alarm is set for 4.0 and the measured value increases to 4.2, the relay will be activated. Range: 0.00–100 NTU

Sets the range where the relay remains on after the measured value increases above the low alarm value. Default is 20% of the range. For example: if the low alarm is set for 1.0 and the low deadband is set for 0.5, then the relay remains on between 1.5 and 1.0. Range: 0.00–100 NTU

Sets the range where the relay remains on after the measured value decreases below the high alarm value. For example: if the high alarm is set for 4.0 and the high deadband is set for 0.5, then the relay remains on between 3.5 and 4.0. Range: 0.00–100 NTU

“High” phase assigns the relay setpoint to respond to an increasing measured value; conversely, a “Low” phase assigns the relay setpoint to respond to a decreasing measured value.

Sets the range where the relay remains on after the measured value decreases below the setpoint value (high phase relay) or increases above the setpoint value (low phase relay). Default: 5 NTU; Range: 0–100 NTU

Sets the time to limit how long the relay can remain “on.” Default: 5 minutes; Range: 0–999 minutes

“High” phase assigns the relay setpoint to respond to increasing measured value; conversely, a “Low” phase assigns the relay setpoint to respond to decreasing measured value.

Set the time for additional hold/output time after the relay has been turned off. Default: 1 second; Range: 0–999 seconds

Set the warning level that will trigger a relay. Range: 0–32 (warnings assigned to 1-9 for 1720E). For example: Set the warning level to 0 to allow all warnings to trigger the relay; set the warning level to 5 to allow warnings 6 and above to trigger the relay. Set the warning level to 9 or greater to not trigger the relay on any warning. See Table 10 on page 52 for a full list of warnings.

Page 36

Operation

4.7 Data and Event Logging Options

The sc100 provides two data logs (one for each sensor) and two event logs (one for each sensor). The data logs store the measurement data at selected intervals. The event log stores a variety of events that occur on the devices such as configuration changes, alarms, and warning conditions. The data logs are stored in a packed binary format and the event logs are stored in a CSV format. The logs can be downloaded through either the digital network port or the IrDA port using the file transfer program available from the manufacturer.

The default datalogging frequency is 15 minutes. If the datalogging frequency is set to 15 minute intervals, the instrument can continue to store data for approximately six months.

4.7.1 Data Logging Options

Sensor Data Log:

Step Select Menu Level/Instructions Confirm

Highlight sensor of interest if more that one sensor is attached.

4.8 Digital Network Options

The sc100 provides two digital communication methods with the controller (the digital network port and the IrDA port). Either of the digital ports can be used to access setup data, measurement data, or data/event logs. For the features available for each individual digital network port, refer to the instruction sheet supplied with the selected network card.

MAIN MENU —

SENSOR SETUP

CONFIGURE

DATALOG INTERVAL

(select from 30 sec., 1 min., 5 min., 10 min., 15 min.)

Main Menu or Main Measurement Screen —

4.9 Menu Structure

4.9.1 Sensor Diagnostics Menu

SELECT SENSOR

ERROR LIST Displays a list of errors that are present. See section 7.1 on page 52. WARNING LIST Displays a list of warnings that are present. See section 7.2 on page 52.

Page 37

4.9.2 Sensor Setup Menu

CALIBRATE

SELECT SENSOR (if more than one sensor is attached)

USER PREPD CAL Calibration using 4000 NTU stock solution diluted to 20.00 NTU formazin. STABLCAL CAL Calibration using 20 NTU StablCal Stabilized Formazin Standard VERIFICATION Perform a verification, set the pass/fail criteria, and view the verification history. 0 ELECTRONICS Zero electronics SET DFLT GAIN Return instrument to default calibration.

CAL HISTORY

CONFIGURE

BUBBLE REJECT Choose Yes or No to enable/disable bubble reject. Default: Yes

SIGNAL AVG

MEAS UNITS

EDIT NAME

SET RESOLUTION Set the number of significant digits to display. Default is three significant digits.

DATALOG INTRVL

DIAG/TEST

View the last 12 entered calibrations. Press the ENTER key to move to the next history entry. See section 5.5 on page 46 for more information.

Choose no averaging or specify the amount of time for signal averaging. Available options are: no averaging, 6 sec., 30 sec., 60 sec., or 90 sec. Default is 30 seconds.

Select the appropriate measurement units to display. Choose from mg/L, NTU, TE/F, and FTU. Default: NTU

Enter up to a 12-digit name in any combination of symbols and alpha or numeric characters. Press ENTER when the entry is complete. The name will be displayed on the status line above the measurement value on the main display.

Choose the amount of time between saving data points to the data log. Default: 15 min.; Options: 30 sec., 1 minute, 5 minutes, 10 minutes, or 15 minutes.

Operation

SOFTWARE VERS. Displays the software version number. DRIVER VERS Displays the software driver version number. SERIAL NUMBER Displays the serial number of the sensor. INT TEMP Displays the internal temperature of the sensor electronics in °C. DEFAULT SETUP Restores the sensor’s factory default settings and invalidates the current calibration. POWER CHECK Displays the electrical statistics for the sensor. CAL VALUE Displays the gain and zero electronics values for the current calibration.

4.9.3 System Setup Menu

OUTPUT SETUP (see section 4.5 on page 32 for expanded menu information)

SELECT OUTPUT 1 or 2

SELECT SOURCE Press ENTER to access a list of all connected sensors and select the sensor that will drive the output. SET PARAMETER Press ENTER to select from the displayed parameters.

SET FUNCTION

SET TRANSFER

SET FILTER Average measurements over time (0–120 seconds). Default: 0 seconds. SCALE 0 mA/4 mA Select 0 mA or 4 mA for minimum current (outputs will be set to 0–20 mA or 4–20 mA). ACTIVATION Dependent on Function selected previously. See section 4.5 on page 32 for additional information.

Select LINEAR CONTROL for current output to track the measurement valve. Select PID CONTROL for the sc100 to operate as a PID controller.

Each analog output is normally active, responding to the measured value of its assigned parameter. However, during calibration, each output can be transferred to this preset transfer value.

Page 38

Operation

4.9.3 System Setup Menu (continued)

RELAY SETUP (See section 4.6 on page 34 for expanded menu information.)

SELECT RELAY A, B, or C

SELECT SOURCE Select from none, any connected sensor, or the real time clock (RTC). SET PARAMETER Press ENTER to select from the displayed parameters.

SET FUNCTION

SET TRANSFER Sets the relay to Energize or De-energize (user-selectable). ACTIVATION Activate the relays from this menu (dependent on Function selected).

NETWORK SETUP (this menu appears only if a network card is installed in the controller)

MODBUS ADDRESS

BAUD RATE Select a baud rate of 9600, 19200, 38.4K, 57.6K, or 115.2K. Default: 19200 STOP BITS Select 1 or 2 stop bits. Default: 1 MODBUS MODE Select RTU or ASCII. Default: RTU DATA ORDER Select NORMAL or SWAPPED.

DISPLAY SETUP

ADJ CONTRAST

LANGUAGE

SET DATE/TIME

Select from the available options to customize the relay functions. See section 4.6.1 on page 34 for additional details.

Highlight sc100 Analyzer, or either connected sensor then press ENTER to select. Choose a number between 1 and 247 as the address (each source must have a different address) then press ENTER.

Use the UP and DOWN keys to increase or decrease the contrast, see section 4.3.2 on page 28. Range = 0–50

The default is English. Choose from the available options to allow all menus to appear in the selected language.

Use this menu to select the date format and to set the date and time (24-hour (military) format), see

section 4.3.4 on page 29.

SECURITY SETUP (Enter a 6-digit passcode)

SET PASSCODE

ENABLE Enables system security. See section 4.4.1 on page 31. DISABLE Disables system security. See section 4.4.1 on page 31.

LOG SETUP (Not used for 1720E system. Enable datalogging from the sensor setup menu for 1720E)

DATALOG SETUP Set up datalogging of data and events. See section 4.7.1 on page 36.

ERROR HOLD MODE

HOLD OUTPUTS Holds outputs when unable to communicate with the sensor. XFER OUTPUTS Goes to transfer state when unable to communicate with the sensor.

4.9.4 Test/Maint Menu

STATUS

Indicates the status of each relay and indicates which sensors are connected to the controller.

OUTPUT CAL

SELECT OUTPUT 1 or 2

Calibrate Analog Output by specifying values to correspond to 4 mA and 20 mA.

HOLD OUTPUTS

SET OUTMODE Choose Hold Outputs or Xfer Outputs. SET CHANNELS Choose any individual attached sensor or all attached sensors to be held or transferred. ACTIVATION Select Launch or Release.

Page 39

4.9.4 Test/Maint Menu (continued)

OVERFEED RESET

Reset the overfeed time out.

TEST OUTPUT

SELECT OUTPUT 1 or 2

User selectable mA value. 0–20 mA

TEST RELAY

SELECT RELAY A, B, or C

Energize or de-energize the selected relay.

RESET CONFIG

Reset to default configuration of the controller

SIMULATION

SELECT SOURCE, SET PARAMETER, SET SIM VALUE

Simulate sensor measurement values for testing the outputs and relays.

SCAN SENSORS

Manually scans for sensors to determine if sensors have been added or removed.

MODBUS STATS

Indicates the communication statistics for use with an external network.

Operation

CODE VERSION

Indicates the controller software version.

Page 40

Section 5 System Startup

5.1 General Operation

Plug the sensor into the unpowered controller by aligning the orientation tab on the cable connector with the channel in the controller connector. Push in and turn to secure the connection. Tug gently to check the connection.

After all plumbing and electrical connections have been completed and checked, place the head on the body and supply power to the system. Ensure the head is seated on the body when power is applied, since dark readings are measured at this time. If power is applied while the sensor head is off the turbidimeter body, cycle the power with the sensor head on the body.

The first time a controller is powered up, a language selection menu will appear. The user must select the correct language from the displayed options. Use the UP and DOWN keys to highlight the appropriate language and press ENTER to select.

Following language selection and upon power-up, the controller will search for connected sensors. The display will show the main measurement screen. Press the MENU key to access the menus.

5.2 Starting Sample Flow

Start sample flow through the instrument by opening the sample supply valve. Allow the turbidimeter to run long enough for the tubing and body to become completely wetted and the reading on the display to stabilize. One to two hours or longer may be required initially for complete stabilization. Allow measurements to become stable through adequate conditioning before completing instrument settings or performing calibrations.

5.3 Sensor Calibration and Verification

The manufacturer offers two EPA-approved calibration methods one using userprepared formazin and the other using StablCal® stabilized formazin. Two verification methods (wet and dry) are also offered.

The 1720E Turbidimeter is factory-calibrated using StablCal before shipment. The instrument must be recalibrated before use to meet published accuracy specifications. In addition, recalibration is recommended after any significant maintenance or repair and at least once every three months during normal operation. The turbidimeter body and bubble trap must be thoroughly

cleaned and rinsed before initial use and prior to each calibration.

Tips to achieve the most accurate calibrations:

• Optimum performance is achieved when calibration is performed in the

turbidimeter body. Accurately prepare the standard then add it to the turbidimeter body at the appropriate step in the procedure. Do not prepare the standard in the body.

Stabilized Formazin

• Stop sample flow, drain, and clean the turbidimeter body before beginning the calibration procedure.

• Always clean the photocell window per the instructions in section 6.4.2 on

page 48. Rinse the photocell with deionized water and dry with a soft, lint-free

cloth before calibrating.

Page 41

System Startup

• Always clean the turbidimeter body or calibration cylinder per the instructions

in section 6.4.3 on page 48. Rinse with deionized water before calibrating.

• Store the calibration cylinder upside-down to minimize contamination between calibrations.

• Pour the calibration standard into the turbidimeter body at the inflow end (left side when facing the instrument).

• Gently invert StablCal standards for 1 minute before opening. Do not shake. This ensures a consistent turbidity of the standard.

• If the 20.0 NTU StablCal standard is allowed to sit in the calibration cylinder or turbidimeter body for more than 15 minutes, it must be remixed (gently swirled in the calibration cylinder) before use to ensure a consistent turbidity.

• Discard all standards after use per the instructions on the container. Never transfer the standard back into its original container. Contamination will result.

• Always recalibrate after restoring default settings.

5.3.1 User-prepared Calibration

Before starting the calibration, read and apply the tips in section 5.3.

Follow the procedure as written (using 1 L of deionized water and 5.0 mL of 4000 NTU formazin) if using a calibration cylinder for calibration.

If using the turbidimeter body for the user-prepared calibration follow the procedure below using 20 NTU formazin in step 6c. Prepare the standard as follows:

1. Stop the sample flow, then drain and clean the body.

2. Prepare a 20 NTU standard by adding 5.0 mL of 4000 NTU formazin to a

1-L flask. Dilute to the mark with deionized water and invert gently to mix.

3. Drain the deionized water and pour the prepared 20 NTU standard into the turbidimeter body at step 6c. Do not add additional 4000 NTU formazin.

Step Select Menu Level/Instructions Confirm

MAIN MENU —

SENSOR SETUP

— USER PREPD CAL

SELECT SENSOR (if more than one sensor is connected)

CALIBRATE

Page 42

System Startup

Step Select Menu Level/Instructions Confirm

Stop sample flow. Drain body and clean the body and bubble trap.

ADD 5 ML OF 4000 NTU FORMAZIN INTO CAL CYLINDER.

Select ACTIVE, HOLD, or TRANSFER

FILL CYL WITH 1 L DI WATER. REPLACE HEAD.

Measured reading (based on a gain of 1.0) displayed

OUTPUT MODE

(Remove head)

GOOD CAL!

GAIN: X.XX

ENTER TO CONT

Verify CAL?

(see Note below)

(to store)

to verify

exit no verify

— RETURN SENSOR TO MEASURE MODE

5.3.2 Calibration with StablCal

Select VERIFICATION type (begin at step 7 in section 5.4.1 on page 44 or

section 5.4.2 on page 45) or enter initials to complete calibration.

Main Menu or Main Measurement Screen —

Note: If a dry verification is performed directly after a calibration, the measured value is assigned as the expected value for future verifications (when using the dry verification device with the same serial number). As long as the verification exists within the verification history, the expected value will be retained. Otherwise, the expected value will be the nominal labeled value associated with the dry verification device.

Before starting the calibration, read and apply the tips in section 5.3 on page 40.

Step Select Menu Level/Instructions Confirm

MAIN MENU —

SENSOR SETUP

Page 43

System Startup

Step Select Menu Level/Instructions Confirm

—CALIBRATE

STABLCAL CAL

OUTPUT MODE

Select ACTIVE, HOLD, or TRANSFER

Drain/clean/rinse the turbidimeter body or cal cylinder.

POUR 20 NTU STD INTO CYL/BODY. REPLACE HEAD

Measured reading and reading based on 1.0 gain displayed

GOOD CAL!

GAIN: X.XX

ENTER TO CONT

Verify CAL? (see Note below)

(to store)

to verify/

— RETURN SENSOR TO MEASURE MODE

Select VERIFICATION type (begin at step 7 in section 5.4.1 on page 44 or section 5.4.2

5.4 Instrument Verification

Instrument verification is intended as a simple check to ensure turbidimeter functionality between calibrations. A verification is initially performed directly after a calibration and subsequent independent verifications are referenced to the initial verification. The pass/fail criteria is set and subsequent verifications are deemed good or bad, when compared to the initial verification. All verifications are based on the current calibration and must be repeated when the instrument is recalibrated or when the pass/fail criteria is not met.

exit no verify

on page 45) or enter initials to complete calibration.}

Main Menu or Main Measurement Screen —

Page 44

System Startup

Two types of verifications are offered. The dry verification is performed using a “dry” calibration device such as the ICEPIC™. A wet verification is performed using a standard with a predetermined value such as StablCal

Stabilized Formazin or a user-prepared standard with a value that has been verified on an independent device such as a laboratory turbidimeter.

5.4.1 Dry Verification

Step Select Menu Level/Instructions Confirm

— PERFORM VER

Choose ACTIVE, HOLD, or TRANSFER

— VER TYPE Select DRY

select 1 NTU STD or 20 NTU STD or verify SN of previously used calibration device

MAIN MENU —

SENSOR SETUP

CALIBRATE

VERIFICATION

OUTPUT MODE

DRY VERIFY

Set Head on Standard

— RETURN SENSOR TO MEASURE MODE

Reading Displayed

(to accept)

GOOD VER!

(to store)

ENTER INITIALS (user input)

MAIN MENU or Main Measurement Screen —

Page 45

System Startup

5.4.2 Wet Verification

Before starting the verification, read and apply the appropriate tips in section 5.3

on page 40.

Step Select Menu Level/Instructions Confirm

—CALIBRATE

— PERFORM VER

Choose ACTIVE, HOLD, TRANSFER

DRAIN AND CLEAN SENSOR BODY. ENTER TO CONT

MAIN MENU —

SENSOR SETUP

VERIFICATION

OUTPUT MODE

Select VER TYPE

Select WET

Enter Std Turbidity

POUR STANDARD INTO CYL/BODY. PLACE HEAD ON. ENTER TO CONT

Reading Displayed

GOOD VER!

ENTER INITIALS

RETURN SENSOR TO MEASURE MODE

Main Menu or Main Measurement Screen —

(to accept)

Page 46

System Startup

5.5 Calibration and Verification History

The calibration and verification history logs contain information on the last 12 calibrations and the last 12 verifications. The calibration history log shows the gain value, the time and date of the calibration, and the initials of the operator performing verification.

Note: Restoring default settings from the DIAG/TEST menu will return the turbidimeter to its non calibration state (gain = 1.0) but it will not remove the previous calibration history from memory.

The calibration history log is accessed from the Calibrate menu. The verification history log is accessed from the Verification menu (a submenu of the Calibrate menu).

Each verification history entry shows the serial number of the verification device (dry verification) or the value of the verification standard (wet verification), the time and date of the verification, and the initials of the operator performing the verification.

Scroll through the entries by pressing the ENTER key. After scrolling through all 12 histories, the display will return to the calibration menu level.

When the instrument is received from the factory, default values or blank spaces will be shown for the calibration and verification history information. Those values will be replaced with real data as the history log is filled.

The data is retained as first in, first out. When the log is full, the newest entry is stored and the oldest entry in the log is deleted.

Page 47

Section 6 Maintenance

DANGER Only qualified personnel should conduct the maintenance tasks described in this section of the manual.

6.1 Maintenance Schedule

Maintenance Task Frequency

Clean the sensor

Calibrate Sensor (as required by regulatory agency) Per agency-dictated schedule.

Scheduled periodic maintenance requirements of the 1720E are minimal and include calibration and cleaning of the photocell window, bubble trap, and body. Check and clean the bubble trap and turbidimeter body (as described in

section 6.4.3) if visual inspection shows that it is necessary. Perform other

maintenance on a regular basis; experience will dictate scheduling and may depend on the installation, sample type, and season.

Before each calibration and as needed. Depends on sample characteristics.

It is very important to maintain the cleanliness of the interior and exterior of the turbidimeter body, head assembly, the integral bubble trap, and the surrounding area. Doing so will ensure accurate, low-level turbidity measurements.

Clean the body before calibration and verification (especially when measurements are being made at 1.0 NTU or lower).

Check and/or perform a calibration periodically (as experience dictates) using one of the methods described in section 5.3 on page 40. A calibration history menu option is available under Sensor Setup/Calibrate.

6.2 Removing a Sensor from the System

Prior to physically removing a sensor from the system, record all user defined settings such as relays, signal averaging, etc. Disconnect the sensor connector at the controller.

6.3 Reinstalling a Sensor on the System

To return the system to normal operation following a software upgrade or sensor repair perform the following procedure:

1. Detach all sensors from the sc100 controller.

2. From the main menu, press the down arrow key to highlight TEST/MAINT. Press ENTER.

Note: Clean sensors before reinstallation on the system.

3. Use the down arrow key to scroll to SCAN SENSORS and press ENTER.

4. Remove attached sensors by selecting the corresponding serial number or

select “All”.

5. Power down the sc100 then attach the 1720E.

6. Supply power to the sc100. The system will initialize automatically.

Page 48

Maintenance

6.4 Cleaning

6.4.1 Cleaning the Controller

With the enclosure securely closed, wipe the exterior with a damp cloth.

6.4.2 Cleaning the Photocell Window

Occasional cleaning of the photocell window is required. The frequency will depend on the nature and concentration of dissolved and suspended solids in the sample. Biological activity is a primary factor in mineral scale deposit on the window and the amount differs with sample temperature. In general, more growth will occur in warm temperatures and less in cold.

Note: Take care to not scratch the photocell window.

Inspect the photocell window often to determine cleaning needs. Remove any organic growth or film on the photocell window before standardization or calibration. Use a cotton swab and isopropyl alcohol or a mild detergent (such as Liqui-nox cleaning with a mild acid applied with a cotton swab followed by a detergent wash.

Do not use abrasive cleaners.

) to remove most sediment and dirt. Mineral scale buildup may require

6.4.3 Cleaning the Turbidimeter Body and Bubble Trap

Sediment may collect in the turbidimeter body after extended use. Noise (fluctuation) in the reading could indicate the need to clean the body and/or bubble trap. The 1720E bubble trap and bottom plate may be removed to make cleaning easier. Drain and clean the turbidimeter body before each calibration. Establish a regular schedule or perform cleaning as determined by visual inspection.

Cleaning the Turbidimeter Body

Note: The turbidimeter body, bubble trap, and detector must be cleaned before each calibration.

1. Turn off sample flow to the turbidimeter body.

2. Remove the head assembly and bubble trap cover from the body. Remove the

bubble trap by lifting it vertically. Set it aside to be cleaned separately.

3. Drain the body by removing the plug from the bottom of the body.

4. Replace the drain plug and fill the body to the weir with cleaning solution. This

cleaning solution can consist of dilute chlorine solution (25 mL of household bleach in 3.78 liters of water) or a laboratory detergent such as Liqui-nox (1 mL detergent in 1 liter of water).

5. Use a soft brush to clean the inside surfaces of the body.

6. Remove the drain plug again and thoroughly flush the turbidimeter body with

ultra-filtered deionized water. Clean and replace the plug.

Cleaning the Bubble Trap

1. Prepare a cleaning solution (as in step 4 above) in a container large enough

to submerge the entire bubble trap.

2. Using a test tube brush such as Cat. No. 690-00, clean each surface.

3. Rinse the bubble trap thoroughly with ultra-filtered deionized water and

reinstall it in the turbidimeter body.

4. Replace the bubble trap cover and head assembly on the top of the body.

Page 49

Maintenance

5. Restore sample flow to the instrument.

6. Calibrate the instrument using one of the methods in section 5.3 on page 40.

If the above cleaning procedures have been performed and the turbidimeter readings are still noisy, the bottom plate and gasket may need to be removed and cleaned. Carefully perform the following procedure to ensure the turbidimeter body integrity is maintained.

1. Turn off sample flow to the turbidimeter body.

2. Remove the head assembly, bubble trap cover, and bubble trap (by lifting it

vertically) from the body.

3. Drain the body by removing the plug from the bottom of the body.

4. Lift the body off of its mounting screws.

5. With the body turned upside-down, remove the two Phillips-head screws

holding the bottom plate.

6. Lift the bottom plate off the body; set the gasket aside for use in reassembly.

7. Use a soft brush and a dilute cleaning solution (as prepared above) to clean

the bottom plate and inside surfaces of the turbidimeter body. Rinse the entire body and bottom plate with ultra-filtered deionized water.

8. Reassemble by inserting the gasket into the molded channel in the bottom plate.

9. Fit the bottom plate onto the turbidimeter body.

10. Reinstall both screws and carefully tighten to 15 inch-lb maximum.

11. Reinstall the turbidimeter onto the wall mounting screws.

12. Replace the bubble trap, bubble trap cover, and head assembly on the top of

the body.

13. Restore sample flow to the instrument.

6.4.4 Replacing the Lamp Assembly

The Lamp Assembly is located on the head assembly. Under normal use, Hach recommends replacing the lamp once a year to maintain peak performance. Replacement bulbs have been “burned-in” at the factory and are ready for installation and use.

To change the lamp, refer to Figure 28 on page 50 and perform the following steps:

1. Disconnect power to the controller to remove all power to the turbidimeter.

2. Disconnect the lamp leads by unplugging the connector.

3. After the bulb has cooled, remove as follows:

Page 50

Maintenance

Figure 28 Lamp Replacement

a. Wear cotton gloves to protect your hands and to avoid fingerprints on

the bulb.

b. Grasp the bulb.

c. Twist the bulb in a counterclockwise direction, pulling out slightly, until it is

released from the housing.

d. Pull the lamp leads and connector through the hole in the lamp housing.

Do not touch the new bulb with bare hands. Etched glass and reduced lamp life will result. Wear cotton gloves or grasp the lamp assembly with a tissue to avoid contamination. If contamination occurs, clean the glass bulb portion with isopropyl alcohol.

Replace the bulb by reversing the above instructions. The bulb base only fits one way; align the notch in the metal bulb flange with the hole in the lamp holder.

1. Lamp Housing 2. Lamp Assembly 3. Photo Detector

Page 51

6.5 Fuse Replacement

The controller contains two mains fuses. Failed fuses are an indication that an equipment problem could exist. Problem resolution and fuse replacement should only be performed by qualified service personnel. Refer to Figure 29 and perform the following steps to replace the fuses:

1. Disconnect power to the controller (including power to relays if powered).

2. Open the hinged controller cover by completely loosening all four captive

screws in the cover.

3. Remove the high voltage barrier; pull out on the lever of the captive fastener then pull straight out on the barrier. Set the barrier aside for reinstallation.

4. Remove the fuses and install new fuses of the same type and rating (T, 1.6A, 250 V, slow blow).

5. Reinstall the high voltage barrier.

6. Close the controller cover and hand-tighten the four screws.

Maintenance

Figure 29 Fuse Replacement

NETWORK

INTERFACE

CARD

7. Reconnect all power to the instrument.

NCNCNC

NONO

RELAYCRELAYBRELAYA

COMCOMCOM

1. Fuses F1 and F2, 1.6 A

Disconnect Power

Page 52

Section 7 Troubleshooting

7.1 Error Codes

When a sensor is experiencing an error condition, the sensor reading on the measurement screen will flash and all relays and analog outputs associated with the sensor will be held.

Highlight the Probe Diag menu and press ENTER. Highlight Errors and press

ENTER to determine the case of the error. Errors are defined in Table 9.

Table 9 Error Codes

Displayed Error Definition

A/D Fail Failed A/D converter. Call the Service Department.

Lamp Fail

Flash Fail Datalog and event log will not work.

7.2 Warnings

A sensor warning will leave all menus, relays, and outputs functioning normally, but will cause a warning icon to flash on the right side of the display. Highlight the Probe Diag menu and press ENTER to determine the cause of the error. Warnings are defined in Table 10.

The light source has failed. See section 6.4.4 on page 49 for instructions for replacing it.

A warning may be used to trigger a relay and users can set warning levels to define the severity of the warning. Errors are defined in Table 10.

Table 10 Warning Codes

Warning

Number

1 Dark Reading Warning Dark reading detects too much light.

2 Temperature Warning

3 Data Log Full Warning

4 Event Log Full Warning

5 5 Volt Warning

6 Voltage in Warning

7 Lamp V Warning

8 Lamp I Warning

9 Output Mode Not Normal

Displayed Warning Definition/Resolution

Sensor head internal temperature is higher than specified. Contact the Service Department.

Sensor data log is full. No additional data will be logged until sensor log is downloaded into controller memory.

Monitored voltage is outside the range of 4.5 – 5.5 V @ microprocessor input -> 698 to 854 counts from the microprocessor ADC.

Monitored voltage is outside the range of 9.08 – 14.3 V @ microprocessor pin -> 279 to 435 counts from the microprocessor ADC.

Monitored voltage is outside the range of 3.96 – 4.48 V @ microprocessor pin -> 614 to 385 counts from the microprocessor ADC.

Monitored voltage is outside the range of 1.67 – 2.75 V @ microprocessor pin -> 39 to 64 counts from the microprocessor ADC.

Activated when the sensor is not in normal measurement mode (such as when in calibration or verification mode).

Page 53

Tabl e 11 presents sensor warnings displayed in the Event Log, possible causes,

and corrective actions.

Table 11 Troubleshooting

Sensor Warning Possible Cause Corrective Action

Lamp burned out Replace the lamp. See section 6.4.4 on page 49. Lamp unplugged Restore connection

Bad Lamp

Low Signal

Bad System Voltage

A/D Converter Timeout

High Dark Counts

+12 V connection loose at controller Restore connection Dislodged lamp Reinstall lamp Bad circuit board in turbidimeter head Contact the Customer Service Department.

Photocell coated/dirty

Photocell wires disconnected Reconnect wires

Photocell broken/cracked

Lens coated/dirty Clean the lens using isopropyl alcohol and a cotton swab. Obstructed light path Remove obstruction Sample turbidity >100 NTU Switch to a high range turbidimeter See Bad Lamp causes above See Bad Lamp corrective actions above

Improper wiring at controller

Turbidimeter head cable shortened to improper length

Fluctuation in voltage Turn instrument power off and back on. Bad circuit board in turbidimeter head Contact the Service Department Fluctuation in voltage Turn instrument power off and back on. Bad circuit board in turbidimeter head Contact the Customer Service Department. Light Leak—Turbidimeter head not on

turbidimeter body or calibration cylinder during Power Up or Zero Electronics

Light Leak—Turbidimeter head not properly aligned on the turbidimeter body or calibration cylinder during Power Up or Zero Electronics

Photocell broken/cracked Contact the Customer Service Department.

See Cleaning the Photocell Window on page 48. Contact the Customer Service Department.

Replace photocell Contact the Customer Service Department.

See the controller wiring instructions in section 3.2,

Electrical Installation on page 14.

Contact the Customer Service Department.

Make sure the turbidimeter head is on the turbidimeter body and properly aligned and repower instrument or perform ZERO ELECTRONICS in the CALIBRATION MENU.

Make sure the turbidimeter head is properly aligned and repower instrument or perform ZERO ELECTRONICS in the CALIBRATION MENU.

Troubleshooting

Table 12 Additional Malfunctions Not Recorded in the Event Log

Symptom Possible Cause Corrective Action

Continuous Underrange (negative reading)

Continuous Overrange (100 NTU)

Calibration standards not in the correct order or incorrect dilution

The following table presents additional malfunctions which may not be recorded in the Event Log.

Verify the accuracy of calibration standards and recalibrate the instrument. See Low Signal in Table 11.

Verify the accuracy of calibration standards and recalibrate the instrument.

Page 54

Troubleshooting

Table 12 Additional Malfunctions Not Recorded in the Event Log (continued)

Symptom Possible Cause Corrective Action

Erratic Readings Calibration standards have the

same value Inadequate bubble removal from sample

High Readings Deionized water turbidity is

greater than 0.5 NTU

Verify the accuracy of calibration standards and recalibrate the instrument. Increase the signal averaging time to a longer interval. Make sure the Bubble Reject feature is turned on. Slow the flow of sample into the instrument.

Clean the instrument. Access Calibration History for turbidity value of ultra-filtered water. Verify the flow is between 200–750 mL/min. Recalibrate the instrument.

7.3 Event Codes

Event codes are not displayed on the screen of the sc100 and must be downloaded from the event log to be viewed. See section 4.7 on page 36 for additional information. Troubleshooting actions are given in section Table 11 on

page 53.

Table 13 Event Log List

Event Event # Data1 Data2 Data3

Bubble Reject Change 0

Filter Size Change 1

Data Log Interval Change 2

Power On 3 1 — — Calibration 4 Cal Gain Initials — Verification 5 Expected Value Meas Value Initials Dark Reading Warning 6 Measured Value — — Temperature Warning 7 Temperature Value — —

Voltage Warning 8

Lamp Warning 9

A/D Fail 10 1 — — Lamp Fail 11 2 — — Flash Fail 12 3 — —

Output Mode Change 13

0 = OFF 1= ON

0 = No avg 1 = 6 sec 2 = 30 sec 3 = 60 sec 4 = 90 sec

0 = 30 sec 1 = 1min 2 = 5 min 3 = 10 min 4 = 15 min

16 = +5V high 32 = +5V low 64 = V in high 128 = V in low

1 = lamp V high 2 = lamp V low 4 = lamp I high 8 = lamp I low

1 = Hold 2 = Transfer

——

Page 55

Section 8 Replacement Parts and Accessories

Replacement Items

Item Cat. No.

Fuse, T, 1.6 A, 250 V .......................................................................................................................................... 52083-00

Instruction Manual, sc100 Controller, English .................................................................................................... 58600-18

Instruction Manual, 1720E Turbidimeter System, English .................................................................................. 60100-18

Installation kit, sc100 Controller.......................................................................................................................... 58672-00

Lamp Assembly .................................................................................................................................................. 18950-00

sc100 Controller ................................................................................................................................................. 58600-00

Optional Accessories

Cable, sensor extension, 7.7 m (25 ft)................................................................................................................ 57960-00

Cap, Connector Receptacle ...................................................................................................... each ................ 52100-00

Deionized (demineralized) water ..................................................................................................1 L .................... 272-56

Digital Output Card for ModBUS RS232 communication ................................................................................... 59200-00

Digital Output Card for ModBUS RS485 communication ................................................................................... 59200-01

Drain plug for the 1720E body................................................................................................... each................ 44116-00

Filter, 0.45 µm, to produce ultra-filtered water for cleaning and calibration ............................... each ................ 26705-00

Filter, 0.2 µm, to produce ultra-filtered water for calibration standard preparation .................... each................ 23238-10

Formazin Calibration Kit includes:

Calibration Cylinder, TenSette

Floor Stand ............................................................................................................................... each ................ 57432-00

Flow meter, 500–700 mL/min .................................................................................................... each................ 40282-00

ICE-PIC Module for Calibration and Calibration Verification

20 NTU ................................................................................................................................. each ................ 52250-00

1 NTU................................................................................................................................... each ................ 52215-00

0.5 NTU................................................................................................................................ each ................ 52225-00

Lid, Bubble Trap, 1720E ............................................................................................................ each............... 52012-00

Photocell Replacement Kit for the 1720E .................................................................................. each ................ 52180-00

Pipet tips for 19700-01 TenSette Pipet ................................................................................... 50/pkg ................ 21856-96

Pipet tips for 19700-10 TenSette Pipet ................................................................................... 50/pkg ................ 21997-96

Plug, conduit opening ......................................................................................................................................... 58687-00

Power Cord with strain relief, 115 V.................................................................................................................... 54488-00

Power Cord with strain relief, 230 V ................................................................................................................... 54489-00

Power Cord Kit, 10A-125V, 1.8 m (6 ft), UL/CSA listed ............................................................. each ................ 46306-00

Power Cord Kit, 10A-230V, 1.8 m (6 ft), European-style plug, VDE approved .......................... each ................ 46308-00

StablCal Calibration Set for the 1720 Series Turbidimeter

Includes: StablCal Standards, < 0.1 NTU, 20.0 NTU........................................................... 1 L/each ................ 26596-00

StablCal Standard, 0.1 NTU ......................................................................................................... 1 L ................ 27233-53

StablCal Standard, 0.3 NTU ......................................................................................................... 1 L ................ 26979-53

StablCal Standard, 0.5 NTU ......................................................................................................... 1 L ................ 26980-53

StablCal Standard, 1.0 NTU ......................................................................................................... 1 L ................ 26598-53

Strain relief, Heyco .................................................................................................................................................. 16664

Sun shield........................................................................................................................................................... 58690-00

Swabs, Cotton, presterilized for cleaning the photodetector ................................................ 100/pkg ................ 25543-00

TenSette Pipet, 0.1 to 1.0 mL .................................................................................................... each................ 19700-01

TenSette Pipet, 1.0 to 10.0 mL .................................................................................................. each................ 19700-10

Tubing, Inlet, ¼ inch O.D., Polyethylene ................................................................................per foot ................ 51322-00

Tubing, Outlet, ½ inch I.D., ¾ inch O.D., Tygon R3603..........................................................per foot................ 51263-00

Pipet, 4000 NTU Formazin Primary Standard (500 mL).... each................ 44156-00

Page 56

Replacement Parts and Accessories

Calibration and Verification Standards and Accessories

Item Qty Cat. No.

Calibration Cylinder....................................................................................................................each.................44153-00

Formazin Calibration Standards

Formazin, 4000 NTU Stock Solution................................................................................ 500 mL...................2461-49

Calibration/Verification Modules

ICE-PIC™ Module, 1 NTU .................................................................................................1 each.................52215-00

ICE-PIC™ Module, 20 NTU ...............................................................................................1 each.................52250-00

StablCal

StablCal StablCal StablCal StablCal StablCal StablCal

Calibration Standards

Stabilized Formazin Standard, 1 NTU.................................................................... 1 L.................26598-53

Stabilized Formazin Standard, 20 NTU ................................................................. 1 L.................26601-53

Stabilized Formazin Standard, <0.1 NTU............................................................... 1 L.................26597-53

Stabilized Formazin Set, four 1-L bottles 20-NTU and four 1-L bottles <0.1 NTU1 L each...........26596-00

Stabilized Formazin Standard, 40 NTU............................................. 1 gallon (3.78 L).................27463-56

Stabilized Formazin Standard, 0.1 NTU............................................ 1 gallon (3.78 L).................27233-56

Page 57

Section 9 How to Order

U.S.A. Customers

By Telephone:

6:30 a.m. to 5:00 p.m. MST Monday through Friday (800) 227-HACH (800-227-4224)

By Fax:

(970) 669-2932

By Mail:

Hach Company P.O. Box 389 Loveland, Colorado 80539-0389 U.S.A.

Ordering information by e-mail: orders@hach.com

9.1 Information Required

• Hach account number (if available) • billing address

• Your name and phone number • Shipping address

• Purchase order number • Catalog number

• Brief description or model number • Quantity

9.2 International Customers

Hach maintains a worldwide network of dealers and distributors. To locate the representative nearest you, send e-mail to intl@hach.com or contact:

Hach Company World Headquarters; Loveland, Colorado, U.S.A. Telephone: (970) 669-3050; Fax: (970) 669-2932

9.3 Technical and Customer Service (U.S.A. only)

Hach Technical and Customer Service Department personnel are eager to answer questions about our products and their use. Specialists in analytical methods, they are happy to put their talents to work for you.

Call 1-800-227-4224 or e-mail techhelp@hach.com

Page 58

Section 10 Repair Service

Authorization must be obtained from Hach Company before sending any items for repair. Please contact the Hach Service Center serving your location.

In the United States:

Hach Company Ames Service 100 Dayton Avenue Ames, Iowa 50010 (800) 227-4224 (U.S.A. only) FAX: (515) 232-3835

In Canada:

Hach Sales & Service Canada Ltd. 1313 Border Street, Unit 34 Winnipeg, Manitoba R3H 0X4 (800) 665-7635 (Canada only) Telephone: (204) 632-5598 FAX: (204) 694-5134 E-mail: canada@hach.com

In Latin America, the Caribbean, the Far East, the

Indian Subcontinent, Africa, Europe, or the Middle East: Hach Company World Headquarters, P.O. Box 389 Loveland, Colorado, 80539-0389 U.S.A. Telephone: (970) 669-3050 FAX: (970) 669-2932 E-mail: intl@hach.com

Page 59

Section 11 Limited Warranty

Hach Company warrants its products to the original purchaser against any defects that are due to faulty material or workmanship for a period of one year from date of shipment unless otherwise noted.

In the event that a defect is discovered during the warranty period, Hach Company agrees that, at its option, it will repair or replace the defective product or refund the purchase price, subject to the pro-rated schedule above, excluding original shipping and handling charges. Any product repaired or replaced under this warranty will be warranted only for the remainder of the original product warranty period.

This warranty does not apply to consumable products such as chemical reagents; or consumable components of a product, such as, but not limited to, lamps and tubing.

Contact Hach Company or your distributor to initiate warranty support. Products may not be returned without authorization from Hach Company.

Limitations

This warranty does not cover:

• Damage caused by acts of God, natural disaster, labor unrest, acts of war (declared or

undeclared), terrorism, civil strife or acts of any governmental jurisdiction

• Damage caused by misuse, neglect, accident or improper application or installation

• Damage caused by any repair or attempted repair not authorized by Hach Company

• Any product not used in accordance with the instructions furnished by Hach Company

• Freight charges to return merchandise to Hach Company

• Freight charges on expedited or express shipment of warranted parts or product

• Travel fees associated with on-site warranty repair

This warranty contains the sole express warranty made by Hach Company in connection with its products. All implied warranties, including without limitation, the warranties of merchantability and fitness for a particular purpose, are expressly disclaimed.

Some states within the United States do not allow the disclaimer of implied warranties and if this is true in your state the above limitation may not apply to you. This warranty gives you specific rights, and you may also have other rights that vary from state to state.

This warranty constitutes the final, complete, and exclusive statement of warranty terms and no person is authorized to make any other warranties or representations on behalf of Hach Company.

Limitation of Remedies

The remedies of repair, replacement or refund of purchase price as stated above are the exclusive remedies for the breach of this warranty. On the basis of strict liability or under any other legal theory, in no event shall Hach Company be liable for any incidental or consequential damages of any kind for breach of warranty or negligence.

Page 60

Section 10 Compliance Information

Hach Co. certifies this instrument was tested thoroughly, inspected and found to meet its published specifications when it was shipped from the factory.

The Model sc100 with 1720E Sensor has been tested and is certified as indicated to the following instrumentation standards:

Product Safety

UL 61010A-1 (ETL Listing # 65454) CSA C22.2 No. 1010.1 (ETLc Certification # 65454) Certified by Hach Co. to EN 61010-1 Amds. 1 & 2 (IEC1010-1) per 73/23/EEC, supporting test records by Intertek Testing Services.

Immunity

This equipment was tested for Industrial level EMC per:

EN 61326 (EMC Requirements for Electrical Equipment for Measurement,

Control and Laboratory Use) Hach Company, certified compliance by Hach Company.

per 89/336/EEC EMC: Supporting test records by

Emissions

Standards include:

IEC 1000-4-2:1995 (EN 61000-4-2:1995) Electro-Static Discharge Immunity (Criteria B) IEC 1000-4-3:1995 (EN 61000-4-3:1996) Radiated RF Electro-Magnetic Field Immunity (Criteria A) IEC 1000-4-4:1995 (EN 61000-4-4:1995) Electrical Fast Transients/Burst (Criteria B) IEC 1000-4-5:1995 (EN 61000-4-5:1995) Surge (Criteria B) IEC 1000-4-6:1996 (EN 61000-4-6:1996) Conducted Disturbances Induced by RF Fields (Criteria A) IEC 1000-4-11:1994 (EN 61000-4-11:1994) Voltage Dip/Short Interruptions (Criteria B)

Additional immunity Standard/s include:

ENV 50204:1996 Radiated Electro-Magnetic Field from Digital Telephones (Criteria A)

This equipment was tested for Radio Frequency Emissions as follows:

Per 89/336/EEC EMC: EN 61326:1998 (Electrical Equipment for measurement, control and laboratory use—EMC requirements) Class “A” emission limits. Supporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test Center (A2LA # 0905-01) and certified compliance by Hach Company.

Standards include:

EN 61000-3-2 Harmonic Disturbances Caused by Electrical Equipment EN 61000-3-3 Voltage Fluctuation (Flicker) Disturbances Caused by Electrical Equipment

Page 61

Compliance Information

Additional Emissions Standard/s include:

EN 55011 (CISPR 11) Class “A” emission limits

Canadian Interference-causing Equipment Regulation, IECS-003, Class A

Supporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test Center (A2LA # 0905-01) and certified compliance by Hach Company.

This Class A digital apparatus meets all requirements of the Canadian Interference- Causing Equipment Regulations.

Cet appareil numÈrique de la classe A respecte toutes les exigences du RËglement sur le matÈriel brouilleur du Canada.

FCC PART 15, Class “A” Limits

Supporting test records by Hewlett Packard, Fort Collins, Colorado Hardware Test Center (A2LA # 0905-01) and certified compliance by Hach Company.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

(1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense. The following techniques of reducing the interference problems are applied easily.

1. Disconnect the Model sc100 Controller from its power source to verify that it is or is not the source of the interference.

2. If the Model sc100 Controller is connected into the same outlet as the device with which it is interfering, try another outlet.

3. Move the Model sc100 Controller and 1720E sensor away from the device receiving the interference.

4. Reposition the device receiving the interference.

5. Try combinations of the above.

Page 62

Appendix A ModBUS Register Information

Table 14 Controller ModBUS Registers

Group Name Tag Name Register # Data Type Length R/W Description

Measurements

Setup Language 40003

Setup Date Format 40004

Setup

Setup/Analog Output 1 Source 40006

Setup/Analog Output 1 Sensor Select 40007

Setup/Analog Output 1

Setup/Analog Output 1 Type 40009

Setup/Analog Output 1 Transfer Value 40010 Float 2 R/W Sets the transfer value

Setup/Analog Output 1 Filter 40012

Setup/Analog Output 1

Setup/Analog Output 1/Linear

Setup/Analog Output 1/PID

Setup/Analog Output 2 Source 40028

Setup/Analog Output 2 Sensor Select 40029

Setup/Analog Output 2

Calculated Value

Error Hold Mode

Measurement Select

0mA - 4mA Select

Min Setting 40014 Float 2 R/W Sets the min output value

Max Setting 40016 Float 2 R/W Sets the max output value

PID Mode 40018

PID Manual Set

PID Setpoint 40021 Float 2 R/W Sets the PID setpoint

PID Phase 40023

PID Proportional Band

PID Integral Time

PID Derivative Time

Measurement Select

40001 Float 2 R

Unsigned

Integer

Unsigned

Integer

40005

40008

40013

40019 Float 2 R/W

40024 Float 2 R/W Sets the PID proportional band

40026

40027

40030

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

1 R/W Current System Language

1R/W

1 R/W Sets the PID mode (0 = auto; 1 = manual)

1R/W

1 R/W Sets the PID integral time (min)

1 R/W Sets the PID derivative time (min)

1R/W

Value calculated from two sensor measurements

Current Data Display Format (0 = DD/MM/YY; 1 = MM/DD/YY; 2 = DD-MM-YY; 3 = MM-DD-YY)

Error Mode Hold State (0 = Hold outputs; 1 = Transfer outputs to predefined value)

Selects data source for this output (0 = None; 2 = sensor; 4 = Calculation)

Selects sensor source when Source = Sensor (0 = sensor1; 1 = sensor2)

Selects measurement on the sensor (0 = Meas1.. 3 = Meas4)

Selects output type (0 = Linear output; 1 = PID control)

Sets the output filter value in seconds (0 to 120 sec.)

Selects 0mA/4mA for min output (0 = 0mA; 1 = 4mA)

Sets the PID manual output value (0.0 to 100.0%)

Sets the PID phase (0 = Direct; 1=Reverse)

Selects data source for this output (0 = None; 2 = Sensor; 4 = Calculation)

Selects sensor source when Source = Sensor (0 = Sensor1; 1 = Sensor2)

Selects measurement on the Sensor (0 = Meas1 .. 3 = Meas4)

Page 63

ModBUS Register Information

Table 14 Controller ModBUS Registers (continued)

Group Name Tag Name Register # Data Type Length R/W Description

Setup/Analog Output 2 Type 40031

Setup/Analog Output 2 Transfer Value 40032 Float 2 R/W Sets the transfer value

Setup/Analog Output 2 Filter 40034

Setup/Analog Output 2

Setup/Analog Output 2/Linear

Setup/Analog Output 2/PID

Setup/Relay 1 Source 40050

Setup/Relay 1 Sensor Select 40051

Setup/Relay 1

Setup/Relay 1 Type 40053

Setup/Relay 1

Setup/Relay 1/Alarm High Alarm 40055 Float 2 R/W Sets the high alarm setpoint Setup/Relay 1/Alarm Low Alarm 40057 Float 2 R/W Sets the low alarm setpoint

Setup/Relay 1/Alarm

Setup/Relay 1/Alarm On Delay 40063

Setup/Relay 1/Alarm Off Delay 40064

Setup/Relay 1/Control Setpoint 40065 Float 2 R/W Sets the controller setpoint

0mA - 4mA Select

Min Setting 40036 Float 2 R/W Sets the min output value

Max Setting 40038 Float 2 R/W Sets the max output value

Mode 40040

Manual Set 40041 Float 2 R/W

Setpoint 40043 Float 2 R/W Sets the PID setpoint

Phase 40045

Proportional Band

Integral Time 40048

Derivative Time

Measurement Select

Transfer Setting

High Deadband

Low Deadband

40035

40046 Float 2 R/W Sets the PID proportional band

40049

40052

40054

40059 Float 2 R/W Sets the high alarm deadband

40061 Float 2 R/W Sets the low alarm deadband

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

1R/W

1 R/W Sets the PID mode (0 = auto; 1 = manual)

1R/W

1 R/W Sets the PID integral time (min)

1 R/W Sets the PID derivative time (min)

1R/W

1 R/W Sets the on delay time

1 R/W Sets the off delay time

Selects output type (0 = Linear output; 1 = PID control)

Sets the output filter value in seconds (0 to 120 sec)

Selects 0mA/4mA for min output (0 = 0mA; 1 = 4mA)

Sets the PID manual output value (0.0 to 100.0%)

Sets the PID phase (0 = Direct; 1 = Reverse)

Selects data source for this relay (0 = None; 1 = Real Time Clock; 2 = Sensor; 4 = Calculation)

Selects Sensor source when Source = Sensor (0 = Sensor1; 1 = Sensor2)

Selects measurement on the Sensor (0 = Meas1 .. 3 = Meas4)

Selects the relay type (0=Alarm;1=Control; 2 = Status; 3 = Timer; 4 = Event)

Selects the transfer value for the relays (0 = De-energized; 1 = Energized)

Page 64

ModBUS Register Information

Table 14 Controller ModBUS Registers (continued)

Group Name Tag Name Register # Data Type Length R/W Description

Setup/Relay 1/Control Phase 40067

Setup/Relay 1/Control Deadband 40068 Float 2 R/W Sets the controller deadband

Setup/Relay 1/Control

Setup/Relay 1/Control On Delay 40071

Setup/Relay 1/Control Off Delay 40072

Setup/Relay 1/Control

Setup/Relay 1/Event Setpoint 40074 Float 2 R/W Sets the event setpoint

Setup/Relay 1/Event Phase 40076

Setup/Relay 1/Event Deadband 40077 Float 2 R/W Sets the event deadband

Setup/Relay 1/Event On Max Time 40079

Setup/Relay 1/Event On Min Time 40080

Setup/Relay 1/Event Off Max Time 40081

Setup/Relay 1/Event Off Min Time 40082

Setup/Relay 1/Timer Hold Type 40083

Setup/Relay 1/Timer Sensor Select 40084

Setup/Relay 1/Timer Hold Mode 40085

Setup/Relay 1/Timer Duration Time 40086

Setup/Relay 1/Timer Period Time 40087

Setup/Relay 1/Timer Off Delay 40088

Setup/Relay 1/Status Level 40089

Setup/Relay 2 Source 40090

Setup/Relay 2 Sensor Select 40091

Setup/Relay 2

Overfeed Timer

Reset Overfeed Timer

Measurement Select

40070

40073

40092

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

1R/W

1 R/W Sets the overfeed timer value (mins)

1 R/W Sets the on delay time (sec)

1 R/W Sets the off delay time (sec)

1 R/W Resets the overfeed timer

1 R/W Sets the event phase (0 = Low; 1 = High)

1 R/W Sets the max on time (mins)

1 R/W Sets the min on time (mins)

1 R/W Sets the max off time (mins)

1 R/W Sets the min off time (mins)

1R/W

1 R/W Sets the timer on duration time (sec)

1R/W

Sets the controller phase (0=Low;1=High)

Sets which Sensor outputs are affected during timer on time (0 = None; 2 = Selected Sensor; 13 = All Sensors)

Selects which Sensor outputs are being held/transferred during the timers on time (this is used when Hold type is set for single Sensor)

Selects hold outputs vs. set transfer value during timers on time

Sets the period between timer on events (mins)

Sets the time the affected Sensor outputs are held/transferred after the timer turns off (sec)

Sets the status level which will trigger the relay

Selects data source for this relay (0 = None; 1 = Real Time Clock; 2 = Sensor; 4 = Calculation)

Selects Sensor source when Source = Sensor (0 = Sensor1; 1 = Sensor2)

Selects measurement on the Sensor (0 = Meas1 .. 3 = Meas4)

Page 65

ModBUS Register Information

Table 14 Controller ModBUS Registers (continued)

Group Name Tag Name Register # Data Type Length R/W Description

Setup/Relay 2 Type 40093

Setup/Relay 2

Setup/Relay 2/Alarm High Alarm 40095 Float 2 R/W Sets the high alarm setpoint Setup/Relay 2/Alarm Low Alarm 40097 Float 2 R/W Sets the low alarm setpoint

Setup/Relay 2/Alarm

Setup/Relay 2/Alarm On Delay 40103

Setup/Relay 2/Alarm Off Delay 40104

Setup/Relay 2/Control Setpoint 40105 Float 2 R/W Sets the controller setpoint

Setup/Relay 2/Control Phase 40107

Setup/Relay 2/Control Deadband 40108 Float 2 R/W Sets the controller deadband

Setup/Relay 2/Control

Setup/Relay 2/Control On Delay 40111

Setup/Relay 2/Control Off Delay 40112

Setup/Relay 2/Control

Setup/Relay 2/Event Setpoint 40114 Float 2 R/W Sets the event setpoint

Setup/Relay 2/Event Phase 40116

Setup/Relay 2/Event Deadband 40117 Float 2 R/W Sets the event deadband

Setup/Relay 2/Event On Max Time 40119

Setup/Relay 2/Event On Min Time 40120

Setup/Relay 2/Event Off Max Time 40121

Setup/Relay 2/Event Off Min Time 40122

Setup/Relay 2/Timer Hold Type 40123

Setup/Relay 2/Timer Sensor Select 40124

Setup/Relay 2/Timer Hold Mode 40125

Transfer Setting

High Deadband

Low Deadband

Overfeed Timer

Reset Overfeed Timer

40094

40099 Float 2 R/W Sets the high alarm deadband

40101 Float 2 R/W Sets the low alarm deadband

40110

40113

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

1R/W

1 R/W Sets the on delay time

1 R/W Sets the off delay time

1R/W

1 R/W Sets the overfeed timer value (mins)

1 R/W Sets the on delay time (sec)

1 R/W Sets the off delay time (sec)

1 R/W Resets the overfeed timer

1 R/W Sets the event phase (0 = Low; 1 = High)

1 R/W Sets the max on time (mins)

1 R/W Sets the min on time (mins)

1 R/W Sets the max off time (mins)

1 R/W Sets the min off time (mins)

1R/W

Selects the relay type (0 = Alarm; 1 = Control; 2 = Status; 3 = Timer; 4 = Event)

Selects the transfer value for the relays (0 = De-energized; 1 = Energized)

Sets the controller phase (0=Low;1=High)

Sets which Sensor outputs are affected during timer on time (0 = None; 2 = Selected Sensor; 13 = All Sensors)

Selects which Sensor outputs are being held/transferred during the timers on time (this is used when Hold type is set for single Sensor)

Selects hold outputs vs. set transfer value during timers on time

Page 66

ModBUS Register Information

Table 14 Controller ModBUS Registers (continued)

Group Name Tag Name Register # Data Type Length R/W Description

Setup/Relay 2/Timer Duration Time 40126

Setup/Relay 2/Timer Period Time 40127

Setup/Relay 2/Timer Off Delay 40128

Setup/Relay 2/Status Level 40129

Setup/Relay 3 Source 40130

Setup/Relay 3 Sensor Select 40131

Setup/Relay 3

Setup/Relay 3 Type 40133

Setup/Relay 3

Setup/Relay 3/Alarm High Alarm 40135 Float 2 R/W Sets the high alarm setpoint Setup/Relay 3/Alarm Low Alarm 40137 Float 2 R/W Sets the low alarm setpoint

Setup/Relay 3/Alarm

Setup/Relay 3/Alarm On Delay 40143

Setup/Relay 3/Alarm Off Delay 40144

Setup/Relay 3/Control Setpoint 40145 Float 2 R/W Sets the controller setpoint

Setup/Relay 3/Control Phase 40147

Setup/Relay 3/Control Deadband 40148 Float 2 R/W Sets the controller deadband

Setup/Relay 3/Control

Setup/Relay 3/Control On Delay 40151

Setup/Relay 3/Control Off Delay 40152

Setup/Relay 3/Control

Setup/Relay 3/Event Setpoint 40154 Float 2 R/W Sets the event setpoint

Setup/Relay 3/Event Phase 40156

Setup/Relay 3/Event Deadband 40157 Float 2 R/W Sets the event deadband

Setup/Relay 3/Event On Max Time 40159

Measurement Select

Transfer Setting

High Deadband

Low Deadband

Overfeed Timer

Reset Overfeed Timer

40132

40134

40139 Float 2 R/W Sets the high alarm deadband

40141 Float 2 R/W Sets the low alarm deadband

40150

40153

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

1 R/W Sets the timer on duration time (sec)

1R/W

1 R/W Sets the on delay time

1 R/W Sets the off delay time

1R/W

1 R/W Sets the overfeed timer value (mins)

1 R/W Sets the on delay time (sec)

1 R/W Sets the off delay time (sec)

1 R/W Resets the overfeed timer

1 R/W Sets the event phase (0 = Low; 1 = High)

1 R/W Sets the max on time (mins)

Sets the period between timer on events (mins)

Sets the time the affected Sensor outputs are held/transferred after the timer turns off (sec)

Sets the status level which will trigger the relay

Selects data source for this relay (0 = None; 1 = Real Time Clock; 2 = Sensor; 4 = Calculation)

Selects Sensor source when Source = Sensor (0 = Sensor1; 1 = Sensor2)

Selects measurement on the Sensor (0 = Meas1 .. 3 = Meas4)

Selects the relay type (0 = Alarm; 1 = Control; 2 = Status; 3 = Timer; 4 = Event)

Selects the transfer value for the relays (0 = De-energized; 1 = Energized)

Sets the controller phase (0=Low;1=High)

Page 67

ModBUS Register Information

Table 14 Controller ModBUS Registers (continued)

Group Name Tag Name Register # Data Type Length R/W Description

Setup/Relay 3/Event On Min Time 40160

Setup/Relay 3/Event Off Max Time 40161

Setup/Relay 3/Event Off Min Time 40162

Setup/Relay 3/Timer Hold Type 40163

Setup/Relay 3/Timer Sensor Select 40164

Setup/Relay 3/Timer Hold Mode 40165

Setup/Relay 3/Timer Duration Time 40166

Setup/Relay 3/Timer Period Time 40167

Setup/Relay 3/Timer Off Delay 40168

Setup/Relay 3/Status Level 40169

Comm/Net Card Mode 40170

Comm/Net Card Baud 40171

Comm/Net Card Stop Bits 40172

Comm/Net Card Data Order 40173

Min

Comm/Net Card

Comm/Net Card/Addresses

Comm/Net Card/Stats

Comm/Net Card/Stats % Good Mesg 40183 Float 2 R/W % of good messages

Response Time

Max Response Time

sc100 40176

Sensor 1 40177

Sensor 2 40178

Good Messages

Bad Messages

40174

40175

40179

40181

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

1 R/W Sets the min on time (mins)

1 R/W Sets the max off time (mins)

1 R/W Sets the min off time (mins)

Sets which Sensor outputs are affected

1R/W

1 R/W Sets the timer on duration time (sec)

1R/W

1 R/W Sets the number of stop bits (1,2)

1R/W

1 R/W Sets the sc100 Modbus Address

1 R/W Sets the Sensor 1 Modbus Address

1 R/W Sets the Sensor 2 Modbus Address

2 R/W Number of good messages

2 R/W Number of failed messages

during timer on time (0 = None; 2 = Selected Sensor; 13 = All Sensors)

Selects which Sensor outputs are being held/transferred during the timers on time (this is used when Hold type is set for single Sensor)

Selects hold outputs vs. set transfer value during timers on time

Sets the period between timer on events (mins)

Sets the time the affected Sensor outputs are held/transferred after the timer turns off (sec)

Sets the status level which will trigger the relay

Sets the Modbus mode (0=RTU;1=ASCII)

Sets the Modbus baud rate (0 = 9600;

1 = 19200; 2 = 38400; 3 = 57600;

4 = 115200)

Sets the register data order for floats (0 = Normal; 1 = Reversed)

Sets the minimum response time (0 to 30 sec)

Sets the maximum response time (100 to 1000 sec)

Page 68

ModBUS Register Information

Table 14 Controller ModBUS Registers (continued)

Group Name Tag Name Register # Data Type Length R/W Description

Comm/Service Port Mode 40185

Comm/Service Port Baud 40186

Comm/Service Port Stop Bits 40187

Comm/Service Port Data Order 40188

Min

Comm/Service Port

Comm/Service Port/Addresses

Comm/Service Port/Stats

Comm/Sensor/ Sensor1 Stats

Comm/Sensor/ Sensor2 Stats

Calibration

Response Time

Max Response Time

sc100 40191

Sensor 1 40192

Sensor 2 40193

Good Messages

Bad Messages

% Good Mesg 40198 Float 2 R/W % of good messages

Good Messages

Bad Messages

% Good Mesg 40204 Float 2 R/W % of good messages

Good Messages

Bad Messages

% Good Mesg 40210 Float 2 R/W % of good messages

Output1 4mA count

Output1 20mA count

Output2 4mA count

Output2 20mA count

40189

40190

40194

40196

40200

40202

40206

40208

40212

40213

40214

40215

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned

Integer

Unsigned Integer

1R/W

1 R/W Sets the number of stop bits (1,2)

1R/W

1 R/W Sets the sc100 Modbus Address

1 R/W Sets the Sensor 1 Modbus Address

1 R/W Sets the Sensor 2 Modbus Address

2 R/W Number of good messages

2 R/W Number of failed messages

2 R/W Number of good messages

2 R/W Number of failed messages

2 R/W Number of good messages

2 R/W Number of failed messages

1 R/W Calibration counts for the 4mA output 1

1 R/W Calibration counts for the 20mA output 1

1 R/W Calibration counts for the 4mA output 2

1 R/W Calibration counts for the 20mA output 2

Sets the Modbus mode (0 = RTU; 1 = ASCII)

Sets the Modbus baud rate (0 = 9600; 1 = 19200; 2 = 38400; 3 = 57600; 4 = 115200)

Sets the register data order for floats (0 = Normal; 1 = Reversed)

Sets the minimum response time (0 to 30 sec)

Sets the maximum response time (100 to 1000 sec)

Page 69

Table 15 Sensor ModBUS Registers

ModBUS Register Information

Group Name Tag Name

Measurements Cal Gain 40013 float 2 R none 0.5 to 2.0 Verification PF Criteria 40062 Integer 1 R/W — — Measurements Turbidity 40001 Float 2 R NTU 0/100

Diagnostics Temperature 40005 Float 2 R Deg C

Diagnostics Dark Reading 40009 Float 2 R NTU 0/100 Diagnostics Raw Turbidity 40011 Float 2 R NTU — Diagnostics Lamp Voltage 40018 Float 2 R Volts — Diagnostics Lamp Current 40020 Float 2 R Amps — Diagnostics Plus 5V 40022 Float 2 R Volts — Diagnostics Voltage In 40024 Float 2 R Volts — Setup Software Version 40015 Float 2 R — — Setup Bubble Rej 40017 Integer 1 R/W — On/Off

Setup DataLog Interval 40026 Integer 1 R/W Sec or Min

Setup Sensor Name 40027 String 6 R/W — —

Setup Filter Size 40033 Integer 1 R/W sec

Setup Sensor Ser Num 40036 String 6 R/W — 12 digits Setup Output Mode 40042 Integer 1 R/W — —

Typ e

Length R/W Units (U) Range

—

30 sec, 1 min, 5 min, 10 min, 15 min

no averaging, 6, 30, 60, 90

Setup Set Resolution 40061 Integer 1 R/W decimal places 4, 3, or 2

Page 70

Index

Numerics

90 Degree Detector ....................................................... 7

Accuracy ........................................................................ 4

Alarms Analog Outputs

......................................................................... 18

............................................................ 18

Bubble trap .................................................................... 7

bubble trap

.................................................................... 7

Calibration ................................................................... 40

History StablCal

User-prepared Calibration Methods Cleaning Components

Customer Supplied

System Controller Dimensions

................................................................... 46

................................................................ 42

....................................................... 41

...................................................... 5

...................................................................... 48

................................................. 8

.................................................................... 8

................................................... 9

Data Logging ............................................................... 36

Date

Setting Digital Output Dimensions

Conduit Hole Display

Contrast

................................................................... 30

............................................................... 21

......................................................... 10

......................................................................... 27

................................................................ 28

Electrical Installation .................................................... 14

Conduit

Connecting/Wiring the Sensor Cable

Hard-wiring the Sensor

Power Cord Enclosure, Controller Event Codes Event Logging

.................................................................. 14

.................... 19

......................................... 19

........................................................... 14

..................................................... 6

................................................................ 54

............................................................. 36

Flow Rate .................................................................... 25

Fuse

Rating

.................................................................... 51

Replacement

......................................................... 51

Head Assembly ........................................................... 24

Installation ..................................................................... 8

Controller Panel Panel Mounting Pipe Mounting Wall Mounting

.............................................................. 12

..................................................................... 10

..................................................... 13

....................................................... 12

Key

Functions

.............................................................. 26

Language

Displayed

.............................................................. 29

Maintenance

Cleaning Fuse Replacement

Schedule ModBUS RS232 Mounting

................................................................ 48

................................................ 51

............................................................... 47

.......................................................... 21

..................................................................... 24

Output

Connections

Setup Outputs

Hold/Transfer

Release

.......................................................................... 5

.......................................................... 19

.............................................................. 32, 37

........................................................ 33

................................................................. 33

Photocell Window ........................................................ 48

Power Requirements

..................................................... 4

Range ............................................................................ 4

Relay

Setup

.............................................................. 34, 38

Setup Menu Relays

Response Time

......................................................................... 18

Connecting

Specifications

.......................................................... 34

............................................................ 18

.......................................................... 5

............................................................. 4

Safety Information ......................................................... 6

Sample

Connections

Flow

.................................................................. 4, 40

.......................................................... 25

Page 71

Index

Sample Line Installation Security

Passcode Setup System

Sensor

Setup Starting Sample Flow Sun Shield System

Setup

.............................................................. 31

............................................................... 31, 38

.................................................................. 31

..................................................................... 37

.................................................. 40

................................................................... 11

..................................................................... 37

.............................................. 24

System Power System Startup

............................................................. 40

............................................................ 40

Test/Maintenance Menu .............................................. 38

Theory of Operation Time

Setting

Turbidimeter Body

................................................................... 29

...................................................... 7

....................................................... 48

Verification .................................................................. 40

Warnings

Sensor

Wire preparation

.................................................................. 53

.......................................................... 15

Page 72

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Hach sc100 1720E Instrument Manual

Specifications and Main Features

Frequently Asked Questions

User Manual