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 ........................
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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 ® ................................42 5.3.2 Calibration with StablCal 5.4 Instrument Verification............................. 43 5.4.1 Dry Verification...............................
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 beam is composed of a tungsten filament light source with a color temperature between 2200 and 3000K.
English (default), German, Spanish, Nederlands Installation Environment Indoor Primary Compliance Method USEPA 180.1; Hach Method 8195; ASTM D 6698; Standard Methods 2130B Limit of Detection 0.0032 NTU (according to criteria specified by ISO 15839) Table 2 Controller Specifications Microprocessor-controlled measuring unit with measured value display,...
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.
General Information 2.3 Theory of Operation 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...
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 Controller Lock washer, ¼-inch I.D. (4), Cat. No. 8H1336 Mounting foot for panel mounting (2), Flat washer, ¼-inch I.D.
Installation 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 Sun shield Pipe mounting brackets (2), includes items 6 and 7, Cat.
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 Figure 10, and Figure Figure 9 Vertical or Horizontal Pipe Mounting the Controller Controller Flat washer, ¼-inch I.D.
Installation Electrical Installation High-voltage wiring for the controller is conducted behind the high voltage DANGER The instrument must be installed barrier in the controller enclosure. The barrier must remain in place unless a by qualified technical personnel qualified installation technician is installing wiring for power, alarms, or relays. for adherence to all applicable Figure 12 for barrier removal information.
Installation Figure 13 Using the Optional Strain Relief and Conduit Plug Power cord strain relief Conduit strain relief Conduit opening sealing plug Figure 14 Proper Wire Preparation and Insertion Strip ¼-inch of insulation. 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.
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Installation Table 4 Power Wiring Information Terminal Number Terminal Description Wire Color Code for North America Wire Color Code for Europe Hot (L1) Black Brown Neutral (N) White Blue Protective Earth (PE) Green Green w/yellow tracer Figure 15 Wiring Connections NETWORK INTERFACE RELAY A...
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Installation Figure 16 Local Disconnect for Power Cord NETWORK INTERFACE RELAY A RELAY B RELAY C RELAY C CARD Power terminal Power cord strain relief Figure 17 Local Disconnect for Hard-wired Line Power NETWORK INTERFACE RELAY A RELAY B RELAY C CARD Power terminal Conduit strain relief...
Installation 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. The controller contains three relays designed for use with high voltage Danger: Relay loads must be resistive.
Installation Make wiring connections at the analyzer end as shown in Figure Table 5 Output Connections at Terminal Block J6 Recorder Wires Circuit Board Position Output 2 + Output 2 – Shield Output 1 + Output 1 – Figure 19 Analog Output Connections DATA DATA...
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Installation 3. Disconnect and remove the existing wires between the quick connect and terminal block J5, see Figure 21 on page 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...
Installation 9. Pass the cable through conduit and a conduit hub or a strain relief fitting and an available access hole in the controller enclosure. Tighten the fitting. 10. Close and secure the cover. Figure 21 Hard-wiring the Sensor DATA DATA DATA DATA...
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Installation Figure 22 Network Card Position in the Controller DATA DATA DATA DATA – DATA – DATA SERVICE REQUEST SERVICE REQUEST OUT 2 OUT 2 OUT 2 OUT 2 – OUT 2 – OUT 2 SHIELD/CHASSIS GND SHIELD/CHASSIS GND OUT 1 OUT 1 OUT 1 OUT 1...
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Allow at least 254 mm (10.00 inches) above the instrument for removal of the head assembly. 312.48 mm (12.30 inches) 238.35 mm (9.38 inches) 273.05 mm (10.75 inches) 127.8 mm 19.72 mm 157.00 mm (5.0 inches) (0.78 inches) (6.18 inches) Cable 2 meters (6.6 feet) POWER...
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).
Installation Figure 24 Sampling Techniques Air (Typical) Sediment (Typical) Poor Poor Good Best 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 ¼-inch compression fitting.
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 Figure 26 Front of the Controller sc100 Instrument Display Right, Left, Up, and Down keys Enter key Back key IrDA (Infrared Data Acquisition) window...
Operation 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.
Operation 4.3.3 Specifying the Displayed Language Step Select Menu Level/Instructions Confirm MAIN MENU — SYSTEM SETUP DISPLAY SETUP LANGUAGE select language Main Menu or Main Measurement Screen — 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...
Operation 4.3.4.2 Setting the Date Format and Date Step Select Menu Level/Instructions Confirm MAIN MENU — SYSTEM SETUP DISPLAY SETUP SET DATE/TIME — highlight DATE FORMAT choose appropriate date format Highlight DATE select character to edit — choose appropriate number Main Menu or Main Measurement Screen —...
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).
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 4.5.1 Output Setup Menu (from System Setup) Select OUTPUT 1 or 2 SELECT SOURCE...
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 MAIN MENU — TEST/MAINT Enter Passcode if enabled HOLD OUTPUTS —...
Operation Step Select Menu Level Confirm — RELEASE Main Menu or Main Measurement Screen — 4.6 Relay Options Step Select Menu Level Confirm MAIN MENU — SYSTEM SETUP RELAY SETUP — Customize the options using the information in section 4.6.1 —...
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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 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.
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.
Operation 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.
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.
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Operation 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...
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.
System Startup • Always clean the turbidimeter body or calibration cylinder per the instructions 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).
System Startup Step Select Menu Level/Instructions Confirm OUTPUT MODE Select ACTIVE, HOLD, or TRANSFER Stop sample flow. Drain body and clean the body and bubble trap. FILL CYL WITH 1 L DI WATER. REPLACE HEAD. Measured reading (based on a gain of 1.0) displayed (Remove head) ADD 5 ML OF 4000 NTU FORMAZIN INTO CAL CYLINDER.
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...
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.
System Startup 5.4.2 Wet Verification Before starting the verification, read and apply the appropriate tips in section 5.3 on page Step Select Menu Level/Instructions Confirm MAIN MENU — SENSOR SETUP — CALIBRATE VERIFICATION — PERFORM VER OUTPUT MODE Choose ACTIVE, HOLD, TRANSFER Select VER TYPE Select WET Enter Std Turbidity...
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.
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 Before each calibration and as needed. Depends on sample Clean the sensor characteristics. Calibrate Sensor (as required by regulatory agency) Per agency-dictated schedule.
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.
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.
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Maintenance 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.
Maintenance 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.
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.
Troubleshooting Table 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 Lamp unplugged Restore connection Bad Lamp +12 V connection loose at controller Restore connection...
Troubleshooting Table 12 Additional Malfunctions Not Recorded in the Event Log (continued) Symptom Possible Cause Corrective Action Erratic Readings Calibration standards have the Verify the accuracy of calibration standards and recalibrate the same value instrument. Inadequate bubble removal from Increase the signal averaging time to a longer interval. sample Make sure the Bubble Reject feature is turned on.
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.
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.
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.
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:...
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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.
Appendix A ModBUS Register Information Table 14 Controller ModBUS Registers Group Name Tag Name Register # Data Type Length Description Calculated Value calculated from two sensor Measurements 40001 Float Value measurements Unsigned Setup Language 40003 Current System Language Integer Current Data Display Format Unsigned Setup Date Format...
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ModBUS Register Information Table 14 Controller ModBUS Registers (continued) Group Name Tag Name Register # Data Type Length Description Unsigned Selects output type (0 = Linear output; Setup/Analog Output 2 Type 40031 Integer 1 = PID control) Setup/Analog Output 2 Transfer Value 40032 Float...
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ModBUS Register Information Table 14 Controller ModBUS Registers (continued) Group Name Tag Name Register # Data Type Length Description Unsigned Sets the controller phase Setup/Relay 1/Control Phase 40067 Integer (0 = Low; 1 = High) Setup/Relay 1/Control Deadband 40068 Float Sets the controller deadband Overfeed Unsigned...
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ModBUS Register Information Table 14 Controller ModBUS Registers (continued) Group Name Tag Name Register # Data Type Length Description Unsigned Selects the relay type (0 = Alarm; 1 = Setup/Relay 2 Type 40093 Integer Control; 2 = Status; 3 = Timer; 4 = Event) Transfer Unsigned Selects the transfer value for the relays...
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ModBUS Register Information Table 14 Controller ModBUS Registers (continued) Group Name Tag Name Register # Data Type Length Description Unsigned Setup/Relay 2/Timer Duration Time 40126 Sets the timer on duration time (sec) Integer Unsigned Sets the period between timer on events Setup/Relay 2/Timer Period Time 40127...
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ModBUS Register Information Table 14 Controller ModBUS Registers (continued) Group Name Tag Name Register # Data Type Length Description Unsigned Setup/Relay 3/Event On Min Time 40160 Sets the min on time (mins) Integer Unsigned Setup/Relay 3/Event Off Max Time 40161 Sets the max off time (mins) Integer Unsigned...
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ModBUS Register Information Table 14 Controller ModBUS Registers (continued) Group Name Tag Name Register # Data Type Length Description Unsigned Sets the Modbus mode (0 = RTU; Comm/Service Port Mode 40185 Integer 1 = ASCII) Sets the Modbus baud rate (0 = 9600; Unsigned Comm/Service Port Baud...
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ModBUS Register Information Table 15 Sensor ModBUS Registers Register Data Group Name Tag Name Length Units (U) Range Type Measurements Cal Gain 40013 float none 0.5 to 2.0 Verification PF Criteria 40062 Integer — — Measurements Turbidity 40001 Float 0/100 —...
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Index Sample Line Installation ..........24 System Power ............. 40 Security System Startup ............40 Passcode .............. 31 Setup ............... 31 System ..............31 Test/Maintenance Menu ..........38 Sensor Theory of Operation ............7 Setup ..............37 Time Starting Sample Flow ..........40 Setting ..............