Related Manuals for Hach 6120118
Summary of Contents for Hach 6120118
- Page 1 Catalog Number 6120118 Digital PC sc and RC sc ¾-inch Combination pH/ORP Sensor USER MANUAL October 2005, Edition 4 ©Hach Company, 2004–2005. All rights reserved. Printed in the U.S.A. eac/dp...
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Page 3: 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 Sensor Information ... 8 2.2.1 Sensor Body Styles ... 8 2.3 The Digital Gateway ... 9 2.4 Operating Precaution ... - Page 4 Table of Contents 7.3 Troubleshooting the pH or ORP Sensor ... 35 Section 8 Replacement Parts and Accessories... 37 8.1 Replacement Items, Accessories, and Reagent and Standards ... 37 Section 9 How to Order ... 39 Section 10 Repair Service... 40 Section 11 Limited Warranty ...
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Page 5: Section 1 Specifications
Section 1 Specifications Specifications are subject to change without notice. Table 1 Combination pH and ORP Sensor Specifications Components Measuring Range (pH) Measuring Range (ORP) Measuring Range (Temperature) Probe Operating Temperature Probe Storage Temperature Temperature Compensation Accuracy (Analyzer only) Stability (Analyzer only) Repeatability (Analyzer only) Temperature Accuracy (Analyzer only) ±0.5 °C (±0.9 °F) Temperature Drift (Analyzer only) - Page 6 Visit us at www.hach.com...
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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: General Sensor Information
General Information 2.2 General Sensor Information Optional equipment, such as mounting hardware for the probe, is supplied with instructions for all user installation tasks. Several mounting options are available, allowing the probe to be adapted for use in many different applications. 2.2.1 Sensor Body Styles Combination pH and ORP sensors are available in three body styles: •... -
Page 9: The Digital Gateway
Figure 3 Insertion Style Sensor with Domed Electrode 22.2 mm (0.875 inches) 149.9 mm (5.9 inches) Figure 4 Sanitary-style Sensor 22.2 mm (0.875 inches) 187.3 mm (7.37 inches) 2.3 The Digital Gateway The digital gateway was developed to provide a means to use existing analog sensors with the new digital controllers. - Page 10 Visit us at www.hach.com...
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Page 11: Section 3 Installation
Section 3 Installation DANGER Only qualified personnel should conduct the tasks described in this section of the manual. DANGER Seul un technicien qualifié peut effectuer les tâches d'installation décrites dans cette section du manuel. The Combination pH/ORP Sensor can be used with either an sc100 or sc1000 controller. Refer to section 3.2 on page 13 page 16... - Page 12 Installation Figure 5 Proper Wire Preparation and Insertion Strip ¼-inch of insulation. Figure 6 Wiring and Assembling the Digital Gateway Digital gateway front O-ring Sensor wire connector Digital gateway back Cable bushing Anti-rotation washer Seat insulation against connector with no bare wire exposed. METAL BRAID CLEAR Cord grip...
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Page 13: Connecting/Wiring The Digital Gateway To The Sc100 Controller
Table 3 Wiring the Digital Gateway (Cat. No. 6120800) Sensor (wire color) Sensor Signal without Ground Rod Metal Braid Jumper 2 from J3-1 to J3-3 White Blue Clear Active/Measuring not used Some applications require the use of an external ground rod with the combination electrode. Use this wiring scheme for these applications. -
Page 14: Hard-Wiring The Digital Gateway To The Sc100
Installation Figure 7 Attaching the Digital Gateway using the Quick-connect Fittings 3.2.1.2 Hard-wiring the Digital Gateway to the sc100 Important Note: Hard-wiring the digital gateway to the sc100 is not an approved method for Class 1, Division 2 Hazardous Locations. 1. -
Page 15: Connecting The Digital Gateway To A Sc100 Controller In A Hazardous Location
Table 4 Wiring the Sensor at Terminal Block J5 Terminal Number Terminal Designation Figure 8 Hard-wiring the Digital Gateway NETWORK NETWORK INTERFACE INTERFACE CARD CARD From Probe 3.2.2 Connecting the Digital Gateway to a sc100 Controller in a Hazardous Location DANGER The sc100 and certain versions of the sensor are suitable for use in Class 1, Division 2, Groups A, B, C, D Hazardous Locations . -
Page 16: Attaching The Digital Gateway With A Quick-Connect Fitting In A Hazardous Location
Installation 3.2.2.1 Attaching the Digital Gateway with a Quick-Connect Fitting in a Hazardous Location The digital gateway is supplied with a keyed quick-connect fitting for easy attachment to the controller, see (Cat. No. 6139900) must be installed. Retain the connector cap to seal the connector opening in case the sensor must be removed. -
Page 17: Mounting The Digital Gateway
3.4 Mounting the Digital Gateway The digital gateway is supplied with a mounting clip for mounting to a wall or other flat surface. See Figure threaded together, place the mounting clip over the center of the digital gateway and squeeze the clip together to secure. Figure 10 Digital Gateway Dimensions 34.29 mm... - Page 18 Visit us at www.hach.com...
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Page 19: Section 4 User Interface And Navigation
Section 4 User Interface and Navigation 4.1 Using the sc100 Controller The front of the controller is shown in described in Figure 12 Front of the Controller Instrument display BACK key MENU key RIGHT, LEFT, UP, and DOWN keys Number Function Moves back one level in the menu structure. -
Page 20: Controller Display Features
User Interface and Navigation 4.1.1 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, and when a sensor is being calibrated. -
Page 21: Using The Sc1000 Controller
4.2 Using the sc1000 Controller The sc1000 is a touch screen application. Use your finger to touch keys and menu commands. In normal operation the touch screen displays the measured values for the sensors selected. 4.2.1 Display Features 4.2.1.1 Using the Pop-up Toolbar The pop-up toolbar provides access to the controller and sensor settings. -
Page 22: Navigating The Menu Windows
User Interface and Navigation Figure 15 Main Menu Display Area BACK FORWARD –confirms the entry or selection. ENTER –changes to the display of measured values. The pop-up toolbar cannot open from the menu window. To view the HOME Main Menu from this display, touch the Home button and then the bottom of the screen. –scrolls up –scrolls down DOWN... - Page 23 Figure 16 Changing a Menu Item Display Area BACK FORWARD –confirms the entry or selection. ENTER Figure 17 Keypad Enters numbers or the character as shown on the button. Moves the cursor one position to the left or to the right. Increase/Decrease a number or letter at the cursor position.
- Page 24 User Interface and Navigation Figure 18 List Box mg/l Scrolls up or down –cancels and entry. CANCEL –confirms a selection. ENTER Figure 19 Message window COMMUNICATION ERROR Ph [11f20030007] Scrolls up or down. Displays the messages or warnings. Displays details on the selected entry. This button changes back to the previous display.
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Page 25: Section 5 Operation
Section 5 Operation 5.1 Sensor Setup When a sensor is initially installed, the serial number of the Digital Gateway will be displayed as the sensor name. To change the sensor name refer to the following instructions: 1. Select Main Menu. 2. - Page 26 Operation 5.4 pH Sensor Setup Menu (continued) CONFIGURE (continued) Choose 50 or 60 Hz depending on the power line frequency for optimal noise rejection. Default is REJECT FREQ 60 Hz. FILTER Select 0–60 second signal averaging time. TEMP ELEMENT Select type of temperature element from the displayed choices. SELECT BUFFER Select the buffer type (standard 4, 7, 10 or DIN 19267) from the displayed choices.
- Page 27 5.5 ORP Sensor Setup Menu SELECT SENSOR (if more than one sensor is attached) CALIBRATE (Main Menu Item) 1 POINT MANUAL Calibration against a single known sample. TEMP ADJUST Adjust the displayed temperature by up to ± 15 °C. DEFAULT SETUP Restores the system to the original factory calibration.
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Page 28: Ph Calibration
Operation 5.6 pH Calibration The manufacturer offers one and two point automatic and manual calibrations for pH. An automatic calibration identifies the buffer table corresponding to the chosen buffer and automatically calibrates the probe after it stabilizes. A manual calibration is performed by placing the pH sensor in any buffer or sample with a known value and then entering that known value into the controller. -
Page 29: One Point Manual Calibration
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. -
Page 30: Orp Calibration
Operation 5.7 ORP Calibration 5.7.1 One-point Manual Calibration The manufacturer offers a one point manual calibration for ORP. The value of the sample used in the manual calibration may be determined by laboratory analysis or comparison reading. 1. From the Main Menu, select SENSOR SETUP and confirm. 2. -
Page 31: Adjusting The Temperature
Operation 5.9 Adjusting the Temperature View or change the temperature using the steps below: 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. - Page 32 Visit us at www.hach.com...
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Page 33: Section 6 Maintenance
Section 6 Maintenance DANGER Only qualified personnel should conduct the tasks described in this section of the manual. DANGER Seul un technicien qualifié peut effectuer les tâches d'installation décrites dans cette section du manuel. DANGER Explosion hazard. Do not connect or disconnect equipment unless power has been switched off or the area is known to be non-hazardous. -
Page 34: Cleaning The Sensor
Maintenance 6.2 Cleaning the Sensor CAUTION Before cleaning with acid, determine if the chemical reaction between the acid and the sample will create a hazardous chemical reaction. (For example, do not put a sensor that is used in a cyanide bath directly into a strong acid for cleaning because this chemical combination may produce poisonous cyanide gas.) DANGER Acids are hazardous. -
Page 35: Section 7 Troubleshooting
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 this sensor will be held. The following conditions will cause the sensor reading to flash: •... - Page 36 Visit us at www.hach.com...
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Page 37: Section 8 Replacement Parts And Accessories
Buffer, pH 7 Buffer, pH 4 Buffer, pH 10 ORP Standard Solution, 200 mV ORP Standard Solution, 600 mV ORP Standard Solution, 200 mV ORP Standard Solution, 600 mV Catalog Number each 6120118 each 6122400 each 5796000 each 5796100 each 5796200... - Page 38 Visit us at www.hach.com...
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Page 39: Section 9 How To Order
• Brief description or model number 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 40: Section 10 Repair Service
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. -
Page 41: Section 11 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 42 Visit us at www.hach.com...
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Page 43: Section 12 Compliance Information
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:... - Page 44 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.
- Page 45 Appendix A Modbus Register Information Group Name Tag Name Tags SensorMeasTag Measurements pHMeas Tags TempMeasTag Measurements TempDegCMeas Configuration SensorName Tags FuncCode Tags NextState Configuration MeasType Configuration TempUnits Configuration pHFormat Configuration TaggedPhFormat Configuration Filter Configuration TempElementType Tags TempUserValueTag Configuration TempUserDegCValue Configuration pHBuffer Configuration PureWaterCompType...
- Page 46 Modbus Register Information Group Name Tag Name Configuration CalWarningDays Configuration SensorWarningDays Table 8 Sensor Modbus Registers Register Data Length Type 40076 Integer 40077 Integer Description Calibration warning days Sensor warning days...
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Page 47: Ph Measurement Theory
Appendix B General pH Information B.1 pH Measurement Theory pH is the negative logarithm of the hydrogen ion activity and a measure of the acidity or alkalinity of a solution. pH = –log A[H+] pH is normally measured using a glass electrode and a reference electrode. The glass electrode acts as a transducer, converting chemical energy (the hydrogen ion activity) into an electrical energy (measured in millivolts). -
Page 48: Pid Controller Basics
General pH Information B.2 PID Controller Basics A pH control loop operates as follows: The pH meter measures the value of the pH in the effluent, and, if the pH is different from the setpoint, the controller actuates the reagent pump (or valve) that adds reagent to a mixing tank. - Page 49 General pH Information Integral The integral value is used to reduce the steady state error, between the process value and the setpoint, to zero. For example, assume a process can be manually controlled at a level of pH 8.0 by sending a 35% control output level to a reagent pump. Now, say that the system is set up for the controller to provide proportional only control, with the controller setpoint set to pH 8.0 and the proportional band set to pH 1.0.
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- Page 51 Buttons List box ... 23 Toolbar ... 21 Cleaning Sensor ... 34 Compliance Information ... 43 Derivative ... 48 Derivative (Rate) Control ... 48 Display ... 20 Entries Incorrect ... 22 Error Codes ... 35 Integral ... 48 Integral (Reset) ... 48 Functions ...
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