Related Manuals for Endress+Hauser CA76NA
Summary of Contents for Endress+Hauser CA76NA
- Page 1 Products Solutions Services BA01706C/07/EN/04.22-00 71578460 2022-04-01 Valid as of version V1.14.00 Operating Instructions CA76NA Analyzer for sodium...
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Page 3: Table Of Contents
CA76NA Table of contents Table of contents PROFIBUS parameters ....40 About this document ....4 Symbols used . -
Page 4: About This Document
About this document CA76NA About this document Symbols used 1.1.1 Warnings Structure of information Meaning This symbol alerts you to a dangerous situation. DANGER Failure to avoid the dangerous situation will result in a fatal or serious Causes (/consequences) injury. -
Page 5: Documentation
CA76NA About this document 1.1.3 Symbols on the device Symbol Meaning Caution: Hazardous voltage No naked flames Fire, open sources of ignition and smoking are forbidden Eating and drinking are forbidden Wear eye protection goggles Wear safety gloves Reference to device documentation... -
Page 6: Basic Safety Instructions
Intended use CA76NA is an analyzer designed for the continuous measurement of the concentration of sodium in aqueous solutions. The analyzer is designed for use in the following applications: •... -
Page 7: Product Safety
CA76NA Basic safety instructions Product safety 2.5.1 State-of-the-art technology The product is designed to meet state-of-the-art safety requirements, has been tested, and left the factory in a condition in which it is safe to operate. The relevant regulations and international standards have been observed. -
Page 8: Product Description
Product description CA76NA Product description Product design 3.1.1 Main components A0047852 1 Main components Power switch Bottle for lab sample Electronics unit Sample conditioning unit (controls and filters the flow of sample) Amplifier Measuring unit with supply vessel Bottle with alkalization reagent... - Page 9 CA76NA Product description 3.1.2 Liquid control unit A0047855 2 Liquid control unit including measuring unit and supply vessel Sample outlet, circuit Housing outlet Outlet after alkalization pump Sample outlet, calibration Inlet of alkalization pump Temperature sensor Inlet, standard solution...
- Page 10 3.1.4 Measuring system A complete measuring system comprises: • Analyzer CA76NA • Sodium electrode (not included with the analyzer, can be ordered as an accessory) → 63 • pH electrode (not included with the analyzer, can be ordered as an accessory) →...
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Page 11: Operating Principle
CA76NA Product description The measurement system in the flow direction consists of a sodium electrode (measuring electrode), a temperature sensor and a pH electrode (reference electrode). The sodium electrode measures the concentration of sodium ions in the sample. Its ion- selective glass membrane allows Na+ ions to pass through. - Page 12 Product description CA76NA The pH electrode has 2 specific functions: • It serves as the reference point for the sodium electrode. • It measures the pH value of the sample. To also be able to measure Na in very low concentrations, the Ag...
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Page 13: Incoming Acceptance And Product
CA76NA Incoming acceptance and product identification Incoming acceptance and product identification Incoming acceptance 1. Verify that the packaging is undamaged. Notify the supplier of any damage to the packaging. Keep the damaged packaging until the issue has been resolved. -
Page 14: Storage And Transport
Incoming acceptance and product identification CA76NA 4.2.2 Product identification Product page www.endress.com/ca76na Interpreting the order code The order code and serial number of your product can be found in the following locations: • On the nameplate • In the delivery papers Obtaining information on the product 1. -
Page 15: Mounting
CA76NA Mounting Mounting CAUTION Danger of crushing or entrapment if the analyzer is mounted or disassembled incorrectly ‣ Two people are needed to mount and disassemble the analyzer. ‣ Wear suitable protective gloves to protect against mechanical risks. ‣ Comply with minimum spacing requirements when mounting. - Page 16 121 (4.76) 151 (5.94) 181 (7.13) 217 (8.54) A0047739 4 Analyzer CA76NA. Unit of measurement mm (in) 5.1.3 Installation site Please note the following: 1. Protect the device against mechanical vibrations. 2. Protect the device against chemical exposure. 3. Do not expose the device to very dusty environments.
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Page 17: Mounting The Analyzer On A Vertical Surface
Mounting the analyzer on a vertical surface 560 (22.4) 10 (0.39) 10 (0.39) A0049178 5 Analyzer CA76NA, spacing requirements in mm (in) ‣ Observe the required distances when mounting. Post-mounting check After mounting, check all the connections to ensure they are secure. Endress+Hauser... -
Page 18: Electrical Connection
Electrical connection CA76NA Electrical connection WARNING Device is live! Incorrect connection may result in injury or death! ‣ The electrical connection may be performed only by an electrical technician. ‣ The electrical technician must have read and understood these Operating Instructions and must follow the instructions contained therein. - Page 19 CA76NA Electrical connection 2. Open the cover of the electronics unit to the left. 6.2.2 Connecting the analog outputs, digital outputs and power supply Connecting the signal outputs The measured value of the particular channel is available as a current signal on the analog or digital output card.
- Page 20 • Open contact on error: COM-NC • Closed contact on error: COM-NO If the CA76NA is the last device in the bus segment, the two jumpers must be set to X7 and X8 on the PROFIBUS interface card to incorporate the terminating resistors. If the analyzer is not the last device in the bus segment, the jumpers must be removed from X7 and X8 on the PROFIBUS interface card.
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Page 21: Ensuring The Degree Of Protection
CA76NA Electrical connection M12 socket PROFIBUS is connected to an external M12 socket. n.c. A (green) n.c. B (red) n.c. Housing Shielding A0041351 7 Pin assignment 5-pin, b-coded Ensuring the degree of protection Only the mechanical and electrical connections which are described in these instructions and which are necessary for the required, designated use, may be carried out on the device delivered. -
Page 22: Operation Options
Operation options CA76NA Operation options Structure and function of the operating menu A0033387 8 Operating elements of the electronics unit Display Each main menu contains submenus. Navigate through the menus using the 6 keys on the control panel. Functions of the keys on the control panel:... -
Page 23: Commissioning
CA76NA Commissioning Commissioning Preliminaries Due to the necessary calibrations, schedule about 8 hours to commission the device. The following prerequisites apply for commissioning: • The analyzer is mounted as described → 15. • Pipes that carry liquid are mounted as described → 24. - Page 24 Commissioning CA76NA 8.1.1 Connecting pipes that carry liquid Flow diagram S (1 ... 6) A0047930 9 Liquid control unit with measuring unit and supply vessel Sample inlet, 1 to 6 Outlet Overflow vessel for constant primary pressure Standard solution...
- Page 25 CA76NA Commissioning ‣ Connect sample hose using quick-release coupling. The applied pressure is limited to approx. 1 bar (14.5 psi) by the installed overflow valve. Connecting medium outlet points There are 3 sample outlet points on the device: • Individual channel outlet points of the sample conditioning unit, up to 6 pieces of hose measuring 6 x 4 mm •...
- Page 26 Commissioning CA76NA A0049111 Channel outlet General outlet Overflow valve 8.1.2 Installing electrodes Preparing electrodes 1. The analyzer is switched off or the operating mode is OFF. Fill the measuring unit halfway with deionized water so that the electrodes do not dry out after installation.
- Page 27 CA76NA Commissioning NOTICE Risk of damaging the electrodes during the installation and removal procedure ‣ Exercise care when inserting the electrodes into, and removing the electrodes from, the chambers of the flow through cell. ‣ Do not touch against the glass bulbs of the electrodes.
- Page 28 Commissioning CA76NA Connecting the bottle with alkalization reagent Bottles with alkalization reagent with S40 thread No adapter required for connection to the analyzer, the bottle connection including thread adapter nut and seal are ready to use Bottles with alkalization reagent with GL45 thread...
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Page 29: Setting Up Profibus Communication
CA76NA Commissioning 2. Screw the bottle into the head provided. In doing so, make sure you do not touch the hoses. 11 Connected bottle for sodium standard solution, incl. head 8.1.4 Setting the sample flow The control valve is used to adjust the sampling volume so that the sample flows off evenly at the overflow. -
Page 30: Function Check
Commissioning CA76NA 5. Switch on the device. 6. Import the GSD file via the configuration program. 7. During the integration phase, select the module according to the number of channels installed on the device. Function check WARNING Incorrect connection, incorrect supply voltage Safety risks for staff and device malfunctions ‣... - Page 31 CA76NA Commissioning 4. Use the key to select the Mode function and confirm with 5. Select the AUTOMATIC option and confirm with 6. Navigate to the Parameters menu. 7. Enter the factory password 2222, or a new password that has been assigned.
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Page 32: Operation
Operation CA76NA Operation Main menu, measured value display The measured value display shows the measured value at the selected channel. The measured value display is the standard display screen in automatic mode. 1. Use the keys to switch between the detailed status and measured value overview and the overview of the current outputs for the analog signal output for the channels. -
Page 33: Diagnosis
CA76NA Operation Function Options Info Read only Displays the slope of the sodium electrode. Read only Displays the standard electrode potential of the sodium electrode. 9.1.2 Overview of the current outputs Use the keys to switch from the measured value display to the overview of the analog current outputs. - Page 34 Operation CA76NA Diagnosis Function Options Info Na Calibration Read only Displays the parameters for monitoring the Na calibration. The parameters cannot be edited as the device determines the parameters during each calibration. Na0 ... Na3 Read only Displays the concentration increments for a...
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Page 35: Maintenance
CA76NA Operation Maintenance Maintenance Function Options Info Password W Enter the password to access the submenu. Factory password: 1111 Enter the first digit of the password using keys. Go to the next digit with the key. Once you have entered the password, press to confirm. - Page 36 Operation CA76NA Maintenance Function Options Info pH Calibration Displays measured values and entry fields when calibrating the pH electrode. pH electrode calibration pH1 pH --- Enter the pH value of the first buffer solution used The pH value of the first buffer solution should be lower than that of the second buffer solution.
- Page 37 CA76NA Operation Maintenance Function Options Info ‣ Alarm Use this function to adapt the switching states of the alarm relays and of the current output to the individual requirements. The following states are possible for relay 1: • OFF: No message •...
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Page 38: Parameters
Operation CA76NA Parameters Parameters Function Options Info Password P Enter the factory password 2222, or a new password that has been assigned. Basic Settings Specify basic settings such as the measuring unit, language of the operating menu or the name of the measuring point. - Page 39 CA76NA Operation Parameters Function Options Info Measurement Sequence Calibration interval Make the following settings: • Disabled • The intervals at which the analyzer starts an • 4 h automatic calibration • 12 h • How long the analyzer measures the sodium •...
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Page 40: Profibus Parameters
Operation CA76NA Parameters Function Options Info Na Limits Specify upper limits for the sodium ion concentrations of the individual channels. If the analyzed concentration exceeds the set limit value, an error message is output via the alarm relays. In addition, the analog current output of the channel affected can transmit a signal to the central process control system. - Page 41 CA76NA Operation Group Starting Size Format Parameter name Description Unit name address (bytes) BYTE Warnings Assignment of warning bits → 43 BYTE Sample flow Assignment of sample flow→ 44 BYTE Transmission If current channel is in "hold", value: 0...
- Page 42 Operation CA76NA Group Starting Size Format Parameter name Description Unit name address (bytes) REAL Na concentration C2 Sodium concentration of ppb, channel 2 µg/l BYTE Status C2 For assignment, see "Channel status" table Channel 2 BYTE Reserve C2 INT16 Measuring time C2...
- Page 43 CA76NA Operation Device status Value Device status Description 0x00 Waiting Device waiting for sample after insufficient sample flow 0x01 Na calibration Na calibration is in progress 0x02 Meas. Ch. 1 Measurement of channel 1 is in progress 0x03 Meas. Ch. 2...
- Page 44 Operation CA76NA Channel status Bit 7 Bit 6 Channel status Description pH value is too small (the pH value is smaller than the set limit) uncertain All calibration errors (warnings), stock solution empty, insufficient water flow good If no errors or warnings occurred during the...
- Page 45 CA76NA Operation Index calibration interval Value Calibration interval Unit 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 Endress+Hauser...
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Page 46: Diagnostics And Troubleshooting
Diagnostics and troubleshooting CA76NA Diagnostics and troubleshooting 10.1 Diagnostic list The following table contains a list of the diagnostic messages, causes and remedial measures. If the recommended measures to troubleshoot the problem are unsuccessful, contact device support immediately. Error code... -
Page 47: Reset Measuring Device
CA76NA Diagnostics and troubleshooting 10.2 Reset measuring device The settings presented below are basic settings that are stored in the analyzer after data have been deleted. These data are configured specifically for the device when the device is delivered. Maintenance/Calibration/pH Calibration... -
Page 48: Firmware History
Diagnostics and troubleshooting CA76NA Parameters/Passwords Parameter Default value Password W 1111 Password P 2222 10.3 Firmware history Date Version Changes to firmware Documentation 06/2022 V1.14.00 Complete revision BA01706C/.../.../04.22 10/2019 V1.13.02 Extension to include PROFIBUS function BA01706C/.../.../03.19 PROFIBUS interface, firmware version V1.04.01 04/2017 V1.11.00... -
Page 49: Maintenance
CA76NA Maintenance Maintenance WARNING Electrical voltage Risk of serious or fatal injury ‣ De-energize the device when performing maintenance work. CAUTION Failure to observe the maintenance intervals Risk of personal injury and damage to property ‣ Keep to the recommended maintenance intervals 11.1... - Page 50 Maintenance CA76NA 11.2.2 Replacing the filter of the sample conditioning unit Tools are not required for the following series of steps. Remove the medium supply hose with a quick-release coupling at the filter. Remove the filter cartridge. Insert a new filter cartridge, while paying attention to the flow direction (indicated on the adhesive label on the filter)! 4.
- Page 51 CA76NA Maintenance Removing the measuring unit Untighten the coupling and remove the pH and sodium electrode from the measuring unit. Loosen the Allen screws (AF4) of the cover and then remove the cover. 3. Empty the measuring unit, e.g. with a pipette.
- Page 52 Maintenance CA76NA Remove the temperature sensor fitted on the left-hand side of the measuring unit, while making sure you do not lose the O-ring fitted in the measuring unit. Loosen the 2 PH2 Phillips screws on the cover of the liquid control unit and open the cover.
- Page 53 CA76NA Maintenance Cleaning the measuring unit ‣ When cleaning, do not use aggressive cleaning agents or aggressive cleaning methods. Mounting the measuring unit 1. After cleaning, mount the measuring unit with the securing screws on the cover of the liquid control unit.
- Page 54 Maintenance CA76NA 9. Insert the pH electrode into the first buffer solution. 10. If the value for the measurement potential Meas.pot. mV remains stable for a minimum of 30 seconds, use the arrow keys to move to the right in the row from pH1 to "---".
- Page 55 CA76NA Maintenance 4. Select the Manual menu item. 5. Select the Calib. menu item. The analyzer performs an automatic calibration for approx. 1 h 15 min until approx. 2 h 30 min. The automatic mode can be re-established during the calibration.
- Page 56 Maintenance CA76NA NOTICE Incorrect electrode installation, removal and connection Risk of damaging the electrodes and measuring cables ‣ Exercise care when inserting the electrodes into, and removing the electrodes from, the chambers of the flow through cell. ‣ Do not touch against the glass bulbs of the electrodes.
- Page 57 CA76NA Maintenance 3. Under Operating Mode/Manual/Grab-sample start the measurement. The measured concentration is continuously updated. Depending on the sample measured beforehand, the value can sometimes vary greatly at the start of the measurement. The value should be constant at the end of the measurement after approx.
- Page 58 Maintenance CA76NA A0049174 15 Connected bottle for sodium standard solution, including head Do not touch the hoses when changing the standard solution. 1. Switch off the automatic mode via Maintenance/Operating Mode/Mode = Off. The device stops the program currently running. The analyzer is in the standby mode.
- Page 59 CA76NA Maintenance NOTICE Escaping chemicals can contaminate the device Incorrect measurements ‣ When changing the hoses, do not contaminate the hose ends with chemicals. ‣ Allow the ends of the hoses to drain fully. ‣ Do not touch the hoses when changing the standard solution.
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Page 60: Taking Out Of Service
Maintenance CA76NA 11.3 Taking out of service WARNING Contact of chemicals with eyes and skin, and inhalation of vapors Damage to the skin, eyes and respiratory organs ‣ Wear protective goggles, protective gloves and a lab coat when working with chemicals. -
Page 61: Repair
The product must be returned if repairs or a factory calibration are required, or if the wrong product was ordered or delivered. As an ISO-certified company and also due to legal regulations, Endress+Hauser is obliged to follow certain procedures when handling any returned products that have been in contact with medium. - Page 62 Repair CA76NA CAUTION Danger of crushing or entrapment if the analyzer is mounted or disassembled incorrectly ‣ Two people are needed to mount and disassemble the analyzer. ‣ Wear suitable protective gloves to protect against mechanical risks. ‣ Comply with minimum spacing requirements when mounting.
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Page 63: Accessories
Electrode kit • Sodium electrode • pH electrode Order No. 71371663 13.1.3 PROFIBUS upgrade kit for CA76NA Analyzers with software version V2.13 or higher can be upgraded to PROFIBUS. PROFIBUS DP upgrade Order No. 71439722 13.1.4 Sodium electrode for CA76NA Sodium electrode Order No. - Page 64 Accessories CA76NA Sodium standard solution Standard solution 5100 µg/l (ppb) Na, 500 ml (16.9 fl.oz) Order No. 71358761 13.1.7 Other accessories Threaded adapter for alkalization bottle GL45 IG / S40 AG Order No. 71358132 Endress+Hauser...
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Page 65: Technical Data
CA76NA Technical data Technical data 14.1 Input Measured variables Na [µg/l, ppb] Measuring range CA76NA-**AD 0.1 to 9999 µg/l (ppb) Na CA76NA-**AE 0.1 to 200 µg/l (ppb) Na Types of input CA76NA-**AD 1 to 6 measuring channels CA76NA-**AE 1 measuring channel 14.2... -
Page 66: Power Supply
Technical data CA76NA Protocol-specific data Manufacturer ID Device type 1571D Device database files (GSD files) www.endress.com/profibus Device Integration Manager DIM Output values Status and measured values Input variables Remote control: measurement, calibration and regeneration of the analysis function Supported features •... -
Page 67: Environment
CA76NA Technical data Repeatability CA76NA-**AD 0.1 to 2000 µg/l (ppb) ±2 % of display value; ±2 µg/l (ppb) (under reference conditions) 2001 to 9999 µg/l (ppb) ±5 % of display value; ±5 µg/l (ppb) (under reference conditions) CA76NA-**AE Max. ±4 % of measured value or ±1 µg/l (ppb) -
Page 68: Mechanical Construction
Technical data CA76NA Supply pressure 1.0 to 5.0 bar (14.5 to 72.5 psi) pH of the sample CA76NA-**AD pH 3.5 to 11 (unbuffered) CA76NA-**AE pH 2 to 4 (alkalinity: based on pH 2 acidified with HCl and buffered with 225 ppm CaCO Sample flow rate 10 to 15 l/h (2.64 to 3.96 gal/hr) -
Page 69: Index
CA76NA Index Index Menu ........35 Taking out of service ..... . 60 Ambient temperature . - Page 70 Index CA76NA Storage temperature ......67 Supply voltage ......66 Switching on .
- Page 72 *71578460* 71578460 www.addresses.endress.com...