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Hach sc100 User Manual

Hach sc100 User Manual

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Catalog Number 58600-18
Hach sc100™ Controller
USER MANUAL
February 2005, Edition 5
© Hach Company, 2003–2005. All rights reserved. Printed in the U.S.A. eac/dp

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  • Page 1 Catalog Number 58600-18 Hach sc100™ Controller USER MANUAL February 2005, Edition 5 © Hach Company, 2003–2005. All rights reserved. Printed in the U.S.A. eac/dp...
  • Page 2 Visit http://www.hach.com...

  • Page 3: Table Of Contents

    Table of Contents Section 1 Specifications ............................... 5 Section 2 General Information ............................. 7 2.1 Safety Information ..............................7 2.1.1 Use of Hazard Information ..........................7 2.1.2 Precautionary Labels ............................7 2.2 General Product Information ............................. 7 Section 3 Installation..............................9 3.1 Mechanical Installation ............................
  • Page 4 Table of Contents Section 6 Replacement Parts and Accessories ......................43 6.1 Replacement Items ..............................43 6.2 Accessories................................43 Section 7 Compliance Information ..........................45 Section 8 How to Order ...............................47 Section 9 Repair Service .............................48 Section 10 Limited Warranty ............................49...

  • Page 5: Section 1 Specifications

    Temperature Enclosure NEMA 4X/IP66 metal enclosure with a corrosion-resistant finish AC Powered sc100 model: 100–230 VAC ±10%, 50/60 Hz; Power 15 W with 7 W sensor/network card load, 37 W with 25 W sensor/network card load Power Requirements 24 VDCpowered sc100 model: 24 VDC –15%, +20%; Power 16W with 7W...
  • Page 6 Visit us at www.hach.com...

  • Page 7: Section 2 General Information

    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.
  • Page 8 Visit us at www.hach.com...

  • Page 9: Section 3 Installation

    Division 2. Do not replace any component unless power has been switched off or the area is known to be non-hazardous. Figure 1 Components of a Basic System sc100 Controller Lock washer, ¼-inch I.D. (4), Cat. No. 8H1336 Mounting foot for panel mounting (2), Cat. No. 1000B4F3222 Flat washer, ¼-inch I.D.
  • Page 10 Installation Figure 2 Hazardous Location Installation Control Drawing...

  • Page 11: Mechanical Installation

    Install in an environment that is protected from corrosive fluids. 3.1.1 Controller Dimension Illustrations Figure 3 Controller Dimensions 144.0 mm (5.67 inches) 150.0 mm (5.91 inches) sc100 Figure 4 Controller Mounting Dimensions 144.02 mm (5.67 inches) 72.01 mm (2.84 inches) 72.01 mm...
  • Page 12 Installation Figure 5 Panel Mount Cut-out Dimensions 144 mm (5.67 inches ref only 75 mm (2.955 inches (ref only) 144 mm 135 mm (5.67 inches (5.31 inches ref only 72 mm 67.4 mm (2.835 inches (2.65 inches ref only 66.67 mm (2.625 inches 133 mm (5.25 inches...

  • Page 13: Mounting The Controller

    Installation 3.1.2 Mounting the Controller Attach the controller to a rail or wall or mount it in a panel. Supplied mounting hardware is shown in Figure Figure 8, and Figure Figure 7 Vertical or Horizontal Pipe Mounting the Controller Controller Flat washer, ¼-inch I.D.
  • Page 14 Installation Figure 9 Panel Mounting the Controller Controller Lock washer, ¼-inch I.D., (4) Cat. No. 8H1336 Gasket, Neoprene, panel mount, Hex nut (4), Cat. No. 5867300 Cat. No. 1000A4F3249-101 Panel (maximum thickness is 9.5 mm ( inch)) Flat washer (4), Cat. No. 8H1346 Mounting Foot (2), Cat.

  • Page 15: Wiring Safety Information

    Installation Wiring Safety Information When making any wiring connections to the sc100 Controller, the following warnings and must be adhered to, as well as, any warnings and notes found throughout the individual installation sections. For more safety information refer to...

  • Page 16: Installation In Conduit

    Installation Figure 10 Removing Voltage Barrier 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 –...

  • Page 17: Wiring For Power At The Controller

    DANGER Do not connect AC power to a sc100 24 VDC powered model. The sc100 can be purchased as either an 100–230 VAC powered model or a 24 VDC powered model. Follow the appropriate wiring instructions per the purchased model.
  • Page 18 Green Green w/yellow tracer The DC power source that supplies power to the 24 VDC powered sc100 must maintain voltage regulation within the specified 24 VDC –15% +20% voltage limits. The DC power source must also provide adequate protection against surges and line transients.
  • Page 19 Installation Figure 14 Local Disconnect for Power Cord NETWORK INTERFACE RELAY A RELAY B RELAY B RELAY C CARD Power terminal Power cord strain relief Figure 15 Local Disconnect for Hard-wired Line Power NETWORK INTERFACE RELAY A RELAY B RELAY B RELAY C CARD Power terminal...

  • Page 20: Alarms And Relays

    AC Line (100–230 V) Powered sc100’s AC line powered sc100 controllers contain three relays designed for connection to AC MAINS circuits (i.e., voltages greater than 30V-RMS, 42.2V-PEAK or 60 V dc). Refer to Figure 16 for connection information.

  • Page 21: Connecting The Analog Outputs

    Installation Figure 16 Alarm and Relay Connections RELAY A RELAY B RELAY C NETWORK NETWORK INTERFACE INTERFACE RELAY A RELAY A RELAY B RELAY B RELAY C RELAY C CARD CARD Disconnect Power 3.4.2 Connecting the Analog Outputs DANGER Explosion hazard. Do not connect or disconnect electrical components or circuits to the equipment unless power has been switched off or the area is known to be non-hazardous.

  • Page 22: Connecting/Wiring The Sc Sensor

    Installation Table 4 Output Connections at Terminal Block J6 Recorder Wires Circuit Board Position Output 2 + Output 2 – Shield Output 1 + Output 1 – Figure 17 Analog Output Connections DATA DATA DATA DATA – DATA – DATA SERVICE REQUEST SERVICE REQUEST OUT 2...
  • Page 23 Installation Figure 18 Attaching the Sensor using the Quick-connect Fitting 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...

  • Page 24: Connecting The Sc Sensor To A Controller In A Hazardous Location

    Installation Figure 19 Hard-wiring the sensor DATA DATA DATA DATA DATA DATA DATA DATA – DATA – DATA – DATA – DATA SERVICE REQUEST SERVICE REQUEST SERVICE REQUEST SERVICE REQUEST OUT 2 OUT 2 OUT 2 OUT 2 OUT 2 OUT 2 OUT 2 OUT 2...

  • Page 25: Wiring The Digital Gateway

    Optional extension cables may be purchased to extend the sensor cable length (up to a maximum length of 1000 m (3000 ft). 1. Remove the connector cap from sc100 controller. Retain the connector cap to seal the connector opening in case the sensor must be removed.
  • Page 26 The terminal connection is based on the selected network card. Refer to the instructions supplied with the network card for more details. Note: The sc100/1720E system also supports the AquaTrend Network. Surge Protection Recommendation for Profibus DP Many industrial environments are vulnerable to power transients and lightning.
  • Page 27 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...
  • Page 28 Visit us at www.hach.com...

  • Page 29: Section 4 Operation

    The front of the controller is shown in Figure 23. The keypad consists of the eight keys described in Table Figure 23 Front of the Controller sc100 Instrument display IrDA Port BACK key HOME key MENU key ENTER key RIGHT, LEFT, UP, and DOWN keys...

  • Page 30: Controller Display Features

    Operation 4.2 Controller Display Features When a sensor is connected and the controller is in measurement mode, the controller automatically identifies the connected sensors and displays associated measurements. The display will flash on startup, when a sensor error has occurred, when the hold outputs function has been activated, and when a sensor is being calibrated.

  • Page 31: System Setup

    Operation 4.2.2 Software Text Abbreviations Abbreviation Meaning Abbreviation Meaning Adjust Pass/Fail Calibration Pass Password Cont Continue Preped Prepared Dflt Default Serial Number Diag Diagnostic Standard Freq Frequency Temp Temperature Internal Vers Version Meas Measurement Xfer Transfer 4.3 System Setup 4.3.1 Adjusting Display Contrast Step Select Menu Level/Instructions...

  • Page 32: Setting The Time And Date

    Operation 4.3.3 Setting the Time and Date 4.3.3.1 Setting the Time (24-hr format) Step Select Menu Level/Instructions Confirm MAIN MENU — SYSTEM SETUP DISPLAY SETUP SET DATE/TIME Highlight TIME Select the character to edit. Scroll to appropriate number. Main Menu or Main Measurement Screen —...

  • Page 33: Setting Up System Security

    The passcode feature of the sc100 restricts unauthorized access to configuration and calibration settings. The passcode is factory set to sc100 (the five digits must be followed by a space to remove the trailing asterisk). The following two options are available: Disabled: All configuration settings and calibrations can be changed.

  • Page 34: Output Options

    Operation 4.5 Output Options Refer to the System Setup on page 31 for more information on the output options menu. The analyzer provides two isolated analog outputs (Output 1 and Output 2). 4.5.1 Navigating to the Output Options Menu Step Select Menu Level/Instructions Confirm...

  • Page 35: Release Outputs

    — 4.7 Data Event Logging Options The sc100 provides three data logs (one for each sensor and one for calculated values) and three event logs (one for each sensor and one for the controller). 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.

  • Page 36: Digital Network Options

    Highlight the appropriate displayed parameter and press ENTER ENTER SET FUNCTION Select LINEAR CONTROL for current output to track the measurement valve. 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.
  • Page 37 Operation 4.9 System Setup Menu (continued) RELAY SETUP Select Relay A, B, or C SELECT SOURCE . Select from none, a connected sensor, or the real time clock (RTC) SET PARAMETER Press to select from the displayed parameters. ENTER SET FUNCTION Source set to sensor Alarm: Operates relays in response to the measured parameter.
  • Page 38 Operation 4.9 System Setup Menu (continued) Function set to FEEDER CONTROL PHASE—“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. SET SETPOINT—Sets the value where the relay will turn on. DEADBAND—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).
  • Page 39 NETWORK SETUP (this menu appears only if a network card is installed in the controller) SET MODE Auto or Manual MODBUS ADDRESS Highlight sc100 Analyzer, or either connected sensor then press . Choose a number between 1 and 247 as the ENTER address (each source must have a different address) then press...

  • Page 40: Test/Maint Menu

    Operation 4.9 System Setup Menu (continued) 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. 4.10 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 using the...

  • Page 41: Section 5 Maintenance

    • ac Powered sc100: T, 1.6 A, 250 V, slow blow • 24 V dc powered sc100: T, 3 A, 250V, slow blow 5. Reinstall the high voltage barrier. 6. Close the controller cover and hand-tighten the four screws. 7. Reconnect power to the instrument.
  • Page 42 Maintenance Figure 25 Fuse Replacement NETWORK INTERFACE RELAY A RELAY B RELAY C CARD Fuses F1 and F2. AC powered, T, 1.6A, 250V, slow blow DC powered, T, 3A, 250V, slow blow...

  • Page 43: Section 6 Replacement Parts And Accessories

    Section 6 Replacement Parts and Accessories 6.1 Replacement Items Description Quantity Catalog Number Controller Installation Kit each 58672-00 Fuse, T, 3A, 250V, slow blow each 41060 Fuse, T, 1.6 A, 250 V, slow blow each 52083-00 Instruction manual, English each 58600-18 6.2 Accessories Description...
  • Page 44 Visit us at www.hach.com...

  • Page 45: Section 7 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 has been tested and is certified as indicated to the following instrumentation standards: Product Safety FM 3600/3611 Class I, Division 2 (ETL Listing I.D.
  • Page 46 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.

  • Page 47: Section 8 How To Order

    Brief description or model number • Quantity International Customers Hach maintains a worldwide network of dealers and distributors. To locate the representative nearest you, send an 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 Technical and Customer Service (U.S.A.

  • Page 48: Section 9 Repair Service

    Section 9 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.

  • Page 49: Section 10 Limited Warranty

    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 excluding original shipping and handling charges.
  • Page 50 Visit us at www.hach.com...
  • Page 51 Appendix A Modbus Protocol A.1 Introduction Modbus was developed as a PLC communication protocol by Modicon in the late 1970s. Because Modbus is a well-defined and published standard, Modbus has become one of the best known protocols for interfacing digital equipment to PLCs. Modbus uses a master/slave data exchange technique.
  • Page 52 The address field is a single byte. This byte ranges in value from 1 to 247. Function Codes The function code is a single byte. Several function code values exist in Modbus. The ones supported by the sc100/Digital Sensor System are described below. Function Code Description...
  • Page 53 1001). In a little-endian system, it would be stored as 524F (52 at address 1000, 4F at 1001). The sc100/Digital Sensor registers are big-endian byte order within a register and little-endian word order for multi-registers Floats. A.5.2 Changing the “endian” Order The default "endian"...
  • Page 54 A.6 Modbus Troubleshooting Table 10 Troubleshooting Problem Possible Causes Solution Verify sc100 settings match the Modbus master Baud rate, or stop bits does not settings.Verify Modbus master Parity setting is set to match settings of Modbus master None. Bad RS232 or RS485 cable...
  • Page 55 Modbus Protocol Table 11 sc100 Modbus Registers (continued) Register Data Group Name Tag Name Length Description Type Setup/Analog Output Unsigned Sets the PID mode (0 = auto; 1 = PID Mode 40018 1/PID Integer manual) Setup/Analog Output PID Manual Sets the PID manual output value...
  • Page 56 Modbus Protocol Table 11 sc100 Modbus Registers (continued) Register Data Group Name Tag Name Length Description Type Selects data source for this relay Unsigned Setup/Relay 1 Source 40050 (0 = None; 1 = Real Time Clock; Integer 2 = Sensor; 4 = Calculation)
  • Page 57 Modbus Protocol Table 11 sc100 Modbus Registers (continued) Register Data Group Name Tag Name Length Description Type Sets which Sensor outputs are affected Unsigned Setup/Relay 1/Timer Hold Type 40083 during timer on time (0 = None; Integer 2 = Selected Sensor; 13 = All Sensors)
  • Page 58 Modbus Protocol Table 11 sc100 Modbus Registers (continued) Register Data Group Name Tag Name Length Description Type Reset Unsigned Setup/Relay 2/Control Overfeed 40113 Resets the overfeed timer Integer Timer Setup/Relay 2/Event Setpoint 40114 Float Sets the event setpoint Unsigned Sets the event phase (0 = Low; 1 =...
  • Page 59 Modbus Protocol Table 11 sc100 Modbus Registers (continued) Register Data Group Name Tag Name Length Description Type Setup/Relay 3/Alarm 40141 Float Sets the low alarm deadband Deadband Unsigned Setup/Relay 3/Alarm On Delay 40143 Sets the on delay time Integer Unsigned...
  • Page 60 Modbus Protocol Table 11 sc100 Modbus Registers (continued) Register Data Group Name Tag Name Length Description Type Unsigned Sets the Modbus mode Comm/Net Card Mode 40170 Integer (0 = RTU; 1 = ASCII) Sets the Modbus baud rate (0 = 9600;...
  • Page 61 Modbus Protocol Table 11 sc100 Modbus Registers (continued) Register Data Group Name Tag Name Length Description Type Comm/Service Unsigned 40196 Number of failed messages Port/Stats Messages Integer Comm/Service % Good 40198 Float % of good messages Port/Stats Mesg Comm/Sensor/ Sensor1...
  • Page 62 Visit us at www.hach.com...
  • Page 63 Index Wall Mounting ............ 13 Alarms ..............20 Analog Outputs ............21 Functions ............29 Keypad ..............29 Cleaning Controller ............41 Compliance Information ........... 45 Language Components Displayed ............31 Customer Supplied ..........9 Configuring System ............... 32 Modbus RS232 ..........26 Controller Modbus RS485 ............
  • Page 64 Visit us at www.hach.com...

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