Document Outline

• Table of Contents
• Section 1 Specifications
  • Table 1 Combination pH and ORP Sensor Specifications
  • Table 2 Digital Gateway Specifications
• Section 2 General Information
  • 2.1 Safety Information
    • 2.1.1 Use of Hazard Information
    • 2.1.2 Precautionary Labels
  • 2.2 General Sensor Information
    • 2.2.1 Sensor Body Styles
      • Figure 1 Convertible Style Sensor with Flat Electrode
      • Figure 2 Convertible-style Sensor with Dome Electrode
      • Figure 3 Insertion Style Sensor with Domed Electrode
      • Figure 4 Sanitary-style Sensor
  • 2.3 The Digital Gateway
  • 2.4 Operating Precaution
• Section 3 Installation
  • 3.1 Wiring the sc Sensor to the Digital Gateway
    • 1. Route the cable from the sensor through the strain relief in the digital gateway then properly terminate the wire ends (see Figure 5).
    • 2. Insert the wires as shown in Table 3 and Figure 6.
    • 3. Make sure the O-ring is properly installed between the two halves of the digital gateway and thread the two halves together. Hand tighten.
    • 4. Tighten the strain relief to secure the sensor cable.
    • 5. Connect the digital gateway to the controller.
    • Figure 5 Proper Wire Preparation and Insertion
      • 1. Strip ¹-inch of insulation.
      • 2. Seat insulation against connector with no bare wire exposed.
    • Figure 6 Wiring and Assembling the Digital Gateway
      • 1. Digital gateway front
      • 2. O-ring
      • 3. Sensor wire connector
      • 4. Digital gateway back
      • 5. Cable bushing
      • 6. Anti-rotation washer
      • 7. Cord grip
      • 8. From sensor
      • 9. Insert wires into connector according to Table 3. Use the included 2 mm screwdriver (Cat. No. 6134300) to secure connections.
      • 10. Screw back of digital gateway onto front.
      • 11. Push cable bushing and anti-rotation washer into back.
      • 12. Fasten cord grip securely. Assembly is complete.
    • Table 3 Wiring the Digital Gateway (Cat. No. 6120800)
  • 3.2 Connecting/Wiring the Digital Gateway to the sc100 Controller
    • 3.2.1 Connecting the Digital Gateway Sensor in a Non-hazardous Location
      • 3.2.1.1 Attaching the Digital Gateway with a Quick-connect Fitting in a Non-hazardous Location
        • Figure 7 Attaching the Digital Gateway using the Quick-connect Fittings
      • 3.2.1.2 Hard-wiring the Digital Gateway to the sc100
        • 1. Disconnect power to the controller if powered.
        • 2. Open the controller cover.
        • 3. Disconnect and remove the existing wires between the quick-connect and terminal strip J5, see Figure 8 on page 15.
        • 4. Remove the quick-connect fitting and wires and install the threaded plug on the opening to maintain the environmental rating.
        • 5. Cut the connector from the sensor cable.
        • 6. Strip the insulation on the cable back 1-inch. Strip ¹-inch of each individual wire end.
        • 7. Pass the cable through conduit and a conduit hub or a strain relief fitting (Cat. No. 16664) and an available access hole in the controller enclosure. Tighten the fitting.
        • 8. Reinstall the plug on the sensor access opening to maintain the environmental rating.
        • 9. Wire as shown in Table 4 and Figure 8.
        • 10. Close and secure the cover.
        • Table 4 Wiring the Sensor at Terminal Block J5
          • Figure 8 Hard-wiring the Digital Gateway
    • 3.2.2 Connecting the Digital Gateway to a sc100 Controller in a Hazardous Location
      • 3.2.2.1 Attaching the Digital Gateway with a Quick-Connect Fitting in a Hazardous Location
        • 1. Remove the connector cap from the sc100 controller. Retain the connector cap to seal the connector opening in case the sensor must be removed.
        • 2. Connect the digital gateway connector to the sensor plug on the sc100.
        • 3. Install the connector safety lock (Figure 9). Align the lock over the connector and squeeze the two halves together to lock. ...
        • Figure 9 Installing the Connector Safety Lock
  • 3.3 Connecting the Sensor to the sc1000
    • 3.3.1 Connecting the Sensor using the Quick-connect Fittings
      • 1. Unscrew the connector cap from the controller. Retain the connector cap to seal the connector opening in case the sensor must be removed.
      • 2. Push the digital gateway connector into the socket.
      • 3. Hand-tighten the union nut.
  • 3.4 Mounting the Digital Gateway
    • Figure 10 Digital Gateway Dimensions
    • Figure 11 Mounting the Digital Gateway
      • 1. Mounting Clip
      • 2. Screw, pan head, ¹-28 x 1.25-in.
      • 3. Hex Nut, ¹-28
      • 4. Mount clip, insert digital gateway, squeeze clip closed.
• Section 4 User Interface and Navigation
  • 4.1 Using the sc100 Controller
    • Figure 12 Front of the Controller
      • 1. Instrument display
      • 2. Back key
      • 3. Menu key
      • 4. Right, Left, Up, and Down keys
      • 5. IrDA window
      • 6. Home key
      • 7. Enter key
    • Table 5 Controller Key Functions/Features
    • 4.1.1 Controller Display Features
      • Figure 13 Display
        • 1. Status bar. Indicates the sensor name and status of relays. The relay letter is displayed when the relay is energized.
        • 2. Main measurement
        • 3. Secondary measurement (if applicable)
        • 4. Parameter
        • 5. Warning icon area
        • 6. Measurement units
    • 4.1.2 Important Key Presses
  • 4.2 Using the sc1000 Controller
    • 4.2.1 Display Features
      • 4.2.1.1 Using the Pop-up Toolbar
        • Figure 14 Pop-up Toolbar Functions
      • 4.2.1.2 Using the Menu Windows
        • Figure 15 Main Menu
          • 1. Display Area
          • 2. BACK
          • 3. FORWARD
          • 4. Enter-confirms the entry or selection.
          • 5. Home-changes to the display of measured values. The pop-up toolbar cannot open from the menu window. To view the Main Menu from this display, touch the Home button and then the bottom of the screen.
          • 6. Up-scrolls up
          • 7. Down-scrolls down
      • 4.2.1.3 Navigating the Menu Windows
        • Figure 16 Changing a Menu Item
          • 1. Display Area
          • 2. BACK
          • 3. FORWARD
          • 4. Enter-confirms the entry or selection.
          • 5. HOME-changes to the display of measured values.
          • 6. Up-scrolls up
          • 7. Down-scrolls down
        • Figure 17 Keypad
          • 1. Enters numbers or the character as shown on the button.
          • 2. Moves the cursor one position to the left or to the right.
          • 3. Increase/Decrease a number or letter at the cursor position. Keep the button pressed to change the numbers/characters continuously.
          • 4. Deletes the character to the left of the cursor.
          • 5. Cancel-cancels the entry.
          • 6. Enter-confirms the entry or selection.
        • Figure 18 List Box
          • 1. Scrolls up or down
          • 2. Cancel-cancels and entry.
          • 3. Enter-confirms a selection.
        • Figure 19 Message window
          • 1. Scrolls up or down.
          • 2. Displays the messages or warnings.
          • 3. Displays details on the selected entry.
          • 4. This button changes back to the previous display.
          • 5. Enter-confirms an entry.
          • 6. Cancel-cancels an entry.
• Section 5 Operation
  • 5.1 Sensor Setup
    • 1. Select Main Menu.
    • 2. From the Main Menu, select SENSOR SETUP and confirm.
    • 3. Highlight the appropriate sensor if more than one sensor is attached and confirm.
    • 4. Select CONFIGURE and confirm.
    • 5. Select EDIT NAME and edit the name. Confirm or cancel to return to the Sensor Setup menu.
  • 5.2 Sensor Data Logging
  • 5.6 pH Calibration
    • 5.6.1 One Point Automatic Calibration
      • 1. From the Main Menu, select SENSOR SETUP and confirm.
      • 2. Select the appropriate sensor if more than one is attached and confirm.
      • 3. Select CALIBRATE and confirm.
      • 4. Select 1 POINT AUTO. Select the available Output Mode (Active, Hold, or Transfer) from the list box and confirm.
      • 5. Move the clean probe to buffer and confirm to continue.
      • 6. Confirm when stable. A screen will display 1 Point Auto Complete and the slope (XX.X mV/pH).
      • 7. Return the probe to process.
    • 5.6.2 Two Point Automatic Calibration
      • 1. From the Main Menu, select SENSOR SETUP and confirm.
      • 2. Select the appropriate sensor if more than one is attached and confirm.
      • 3. Select CALIBRATE and confirm.
      • 4. Select 2 POINT AUTO. Select the available Output Mode (Active, Hold, or Transfer) from the list box and confirm.
      • 5. Move the clean probe to Buffer 1 and confirm.
      • 6. Confirm when stable.
      • 7. Move the clean probe to Buffer 2 and confirm.
      • 8. Confirm when stable. A screen will display 2 Point Calibration Complete and the slope (XX.X mV/pH).
      • 9. Return the probe to process.
    • 5.6.3 One Point Manual Calibration
      • 1. From the Main Menu, select SENSOR SETUP and confirm.
      • 2. Select the appropriate sensor if more than one is attached and confirm.
      • 3. Select CALIBRATE and confirm.
      • 4. Select 1 POINT MANUAL. Select the available Output Mode (Active, Hold, or Transfer) from the list box and confirm.
      • 5. Move the clean probe to solution and confirm to continue.
      • 6. Confirm when stable. Edit the solution value using the keypad and confirm.
      • 7. Confirm when stable. A screen will display 1 Point Manual Complete and the slope (XX.X mV/pH).
      • 8. Return the probe to process.
    • 5.6.4 Two Point Manual Calibration
      • 1. From the Main Menu, select SENSOR SETUP and confirm.
      • 2. Select the appropriate sensor if more than one is attached and confirm.
      • 3. Select CALIBRATE and confirm.
      • 4. Select 2 POINT MANUAL CAL. Select the available Output Mode (Active, Hold, or Transfer) from the list box and confirm.
      • 5. Move the clean probe to Solution 1 and confirm.
      • 6. Confirm when stable. Edit the solution value using the keypad and confirm.
      • 7. Move probe to solution 1 and confirm.
      • 8. Confirm when stable. Edit the solution value using the keypad and confirm.
      • 9. A screen will display 2 Point Manual Cal Complete and the slope (XX.X mV/pH).
      • 10. Return the probe to process.
  • 5.7 ORP Calibration
    • 5.7.1 One-point Manual Calibration
      • 1. From the Main Menu, select SENSOR SETUP and confirm.
      • 2. Select the appropriate sensor if more than one is attached and confirm.
      • 3. Select CALIBRATE and confirm.
      • 4. Select 1 POINT MANUAL CAL. Select the available Output Mode (Active, Hold, or Transfer) from the list box and confirm.
      • 5. Move the clean probe to Solution and confirm.
      • 6. Confirm when stable. Edit the solution value using the keypad and confirm.
      • 7. A screen will display 1 Point Manual Complete and the slope (XX.X mV).
      • 8. Return the probe to process.
  • 5.8 Concurrent Calibration of Two Sensors for pH and ORP
    • 1. Begin a calibration on the first sensor and continue until “Wait to Stabilize” is displayed.
    • 2. Select LEAVE and confirm. The display will return to the main measurement screen. The reading for the sensor currently being calibrated will flash.
    • 3. Begin the calibration for the second sensor and continue until “Wait to Stabilize” is displayed.
    • 4. Select LEAVE and confirm. The display will return to the main measurement screen and the reading for both sensors will flash. The calibration for both sensors are now running in the background.
    • 5. To return to the calibration of either sensor select SENSOR SETUP from the Main Menu and confirm. Select the appropriate sensor and confirm.
    • 6. The calibration in progress will be displayed. Continue with the calibration.
  • 5.9 Adjusting the Temperature
    • 1. From the Main Menu, select SENSOR SETUP and confirm.
    • 2. Select the appropriate sensor if more than one is attached and confirm.
    • 3. Select CALIBRATE and confirm.
    • 4. Select TEMP ADJUST and confirm.
    • 5. Select MEASURED TEMP and confirm.
    • 6. The temperature will be displayed. Select the temperature to edit and confirm.
• Section 6 Maintenance
  • 6.1 Maintenance Schedule
  • 6.2 Cleaning the Sensor
    • 1. Clean the exterior of the sensor with a stream of water. If debris remains remove loose contaminate buildup by carefully wiping the entire measuring end of the sensor with a soft clean cloth. Rinse the sensor with clean, warm water.
    • 2. Prepare a mild soap solution of warm water and dish detergent or other non-abrasive soap that does not contain lanolin.
    • 3. Soak the sensor for 2 to 3 minutes in the soap solution.
    • 4. Use a small soft-bristle brush and scrub the entire measuring end of the sensor, thoroughly cleaning the electrode and refere...
    • 5. Soak the entire measuring end of the sensor in dilute acid for no more than 5 minutes. Rinse the sensor with clean, warm water then place the sensor back into the mild soap solution for 2 to 3 minutes to neutralize any remaining acid.
    • 6. Remove the sensor from the soap solution, and rinse the sensor again in clean, warm water.
    • 7. After cleaning, always calibrate the measurement system. Refer to section 4.7 on page 25 or section 4.8 on page 29.
• Section 7 Troubleshooting
  • 7.1 Error Codes
    • Table 6 Error Codes
  • 7.2 Warnings
    • Table 7 Warning Codes
  • 7.3 Troubleshooting the pH or ORP Sensor
• Section 8 Replacement Parts and Accessories
  • 8.1 Replacement Items, Accessories, and Reagent and Standards
• Section 9 How to Order
  • U.S.A. Customers
    • By Telephone:
    • By Fax:
    • By Mail:
  • Information Required
  • International Customers
  • Technical and Customer Service (U.S.A. only)
• Section 10 Repair Service
  • In the United States:
  • In Canada:
  • In Latin America, the Caribbean, the Far East, Indian Subcontinent, Africa, Europe, or the Middle East:
• 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 product manual.
  • In the event that a defect is discovered during the warranty period, Hach Company agrees that, at its option, it will repair or ...
  • 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 abo...
    • 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 thi...
• Section 12 Compliance Information
  • Product Safety
  • Immunity
    • Standards include:
    • Additional Immunity Standard/s include:
  • Emissions
    • Standards include:
    • Additional Emissions Standard/s include:
  • Canadian Interference-causing Equipment Regulation, IECS-003, Class A
  • FCC Part 15, Class “A” Limits
    • 1. Disconnect the Controller from its power source to verify that it is or is not the source of the interference.
    • 2. If the Controller is connected into the same outlet as the device with which it is interfering, try another outlet.
    • 3. Move the Controller away from the device receiving the interference.
    • 4. Reposition the receiving antenna for the device receiving the interference.
    • 5. Try combinations of the above.
• Appendix A Modbus Register Information
  • Table 8 Sensor Modbus Registers
• Appendix B General pH Information
  • B.1 pH Measurement Theory
    • where:
  • B.2 PID Controller Basics
    • Mode
    • Phase
    • Setpoint
    • Proportional Band
    • Integral
    • Derivative
  • Index