Related Manuals for Endress+Hauser ISEmax CAS40D
Summary of Contents for Endress+Hauser ISEmax CAS40D
- Page 1 Products Solutions Services BA00491C/07/EN/05.20 71505793 2020-11-27 Operating Instructions ISEmax CAS40D Ion-selective sensor for continuous measurement of ammonium, nitrate and other ions...
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Page 3: Table Of Contents
ISEmax CAS40D Table of contents Table of contents About this document ....4 Accessories ..... . . 28 Warnings . -
Page 4: About This Document
About this document ISEmax CAS40D About this document 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. If necessary, Consequences of non-compliance (if applicable) ‣... -
Page 5: Basic Safety Instructions
ISEmax CAS40D Basic safety instructions Basic safety instructions Requirements for personnel • Installation, commissioning, operation and maintenance of the measuring system may be carried out only by specially trained technical personnel. • The technical personnel must be authorized by the plant operator to carry out the specified activities. -
Page 6: Operational Safety
Basic safety instructions ISEmax CAS40D Operational safety Before commissioning the entire measuring point: 1. Verify that all connections are correct. 2. Ensure that electrical cables and hose connections are undamaged. 3. Do not operate damaged products, and protect them against unintentional operation. -
Page 7: Incoming Acceptance And Product
ISEmax CAS40D 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 8: Scope Of Delivery
Incoming acceptance and product identification ISEmax CAS40D 5. Click on the product image in the popup window. A new window (Device Viewer) opens. All of the information relating to your device is displayed in this window as well as the product documentation. -
Page 9: Installation
ISEmax CAS40D Installation Installation Installation conditions 4.1.1 Dimensions 50 (1.97) Ø112 (4.41) A0015207 1 Dimensions in mm (inch) 4.1.2 Mounting location Choose a mounting location that can be easily accessed at a later stage. ‣ Ensure that upright posts and assemblies are fully secured and vibration-free. -
Page 10: Mounting The Sensor
Installation ISEmax CAS40D Mounting the sensor 4.2.1 Electrode installation NOTICE Electrode protection caps not used or incorrectly used Drying out of pH electrode or damage to ion-selective membrane ‣ Remove the protection cap from the pH electrode before immersing the sensor in the medium. - Page 11 ISEmax CAS40D Installation NOTICE Air bubbles Air bubbles may accumulate in the electrodes following transportation and if they have been stored in a horizontal position. These air bubbles cause measuring errors. ‣ Before installing the sensor, eliminate any air bubbles e.g. by shaking gently.
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Page 12: Installation Example
Installation ISEmax CAS40D Connecting an optional cleaning unit or an external compressed air supply Remove the watertight dummy plug from the sensor' s compressed air connection. 2. Push against the black ring for this purpose. 3. Remove the plastic dummy plug. -
Page 13: Post-Installation Check
ISEmax CAS40D Installation A0015206 6 Example: measuring system on basin rim Sensor cable Wastewater assembly holder, secure to rail, with transverse pipe and chain Liquiline CM44x transmitter (in graphic: wall-mounted with weather protection cover) Rail Sensor CAS40D with ion-selective electrodes... -
Page 14: Electrical Connection
Electrical connection ISEmax CAS40D 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 15: Ensuring The Degree Of Protection
ISEmax CAS40D Commissioning 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. ‣ Exercise care when carrying out the work. -
Page 16: Operation
Operation ISEmax CAS40D Operation Adapting the measuring device to the process conditions 7.1.1 Calibration Factory calibration Before being delivered, the sensor is checked in the factory and precalibrated with regard to the sensor slope and zero point. Since the correct calibration state depends on the medium matrix (ionic strength, concentration of interference ions etc.), users must always calibrate the sensor themselves... - Page 17 ISEmax CAS40D Operation Slope The slope is specified as a %, based on the theoretical slope according to Nernst. Example: 98% slope = 59.16 mV/pX 0.98 = 57.98 mV/pX The slope affects the linearity of the measurement. If the slope set at the transmitter is less than or greater than the actual slope of the ion- selective electrode, measured errors can occur due to non-linearities.
- Page 18 Operation ISEmax CAS40D For this reason, there is a sequence for calibration and adjustment that must be followed in order to achieve a reliable measurement: 1. Temperature adjustment (precalibrated in the factory, therefore not necessary for initial calibration) 2. Calibration and adjustment of pH electrode 3.
- Page 19 ISEmax CAS40D Operation 4. Start calibration process. Accept the calibration. 2-point calibration In the case of 2-point calibration, the zero point and the slope of the ion-selective electrode system are determined using 2 solutions whose concentrations are known. The two concentrations in the two solutions should be in the upper and lower measuring range.
- Page 20 Operation ISEmax CAS40D nitrate, the manual offset should be - 1 mg/l NO -N (-1 ppm NO -N) per 200 mg/l (200 ppm) chloride. It is normally not necessary to set a manual offset when using ion-selective electrodes for potassium and chloride, as the effect of interference ions on the measured value for potassium or chloride is too small.
- Page 21 ISEmax CAS40D Operation Problem Reason Action ‣ Measured values are too high when Manual offset setting is Make manual offset more negative, concentrations are low and too low not negative enough and and repeat the calibration (preferably when concentrations are high...
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Page 22: Diagnostics And Troubleshooting
Diagnostics and troubleshooting ISEmax CAS40D Diagnostics and troubleshooting When troubleshooting, consider the entire measuring point: • Transmitter • Electrical connections and cables • Assembly • Sensor The possible causes of error in the following table relate mainly to the sensor. -
Page 23: Maintenance
ISEmax CAS40D Maintenance Maintenance Take all the necessary precautions in time to ensure the operational safety and reliability of the entire measuring system. NOTICE Effects on process and process control! ‣ When carrying out any work on the system, bear in mind any potential impact this could have on the process control system and the process itself. - Page 24 Maintenance ISEmax CAS40D Removing the electrode SW17 A0015225 A0015226 A0015227 A0015229 10 Release protection 11 Remove coupling 12 Release cable 13 Remove electrode guard 1. Remove the sensor from the medium. 2. Clean the sensor with water.
- Page 25 ISEmax CAS40D Maintenance 5. Fill the electrode body with electrolyte up to approx. 2-3 mm (0.08 - 0.12") under the rim (→ 11, 24). 6. Dry the thread of the electrode carefully. 7. Continue to hold the electrode upright, with the cable connection head facing downwards.
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Page 26: Repair
Repair ISEmax CAS40D Repair 10.1 Spare parts A0015217 17 Spare parts CAS40D Designation Order no. Kit CYH112 suspension bracket for chain 71096714 Kit CAS40D seal set 71260474 • Silicone grease, 2 g • 2 x O-ring ID 69.44 mm, width 3.53 mm •... -
Page 27: Return
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 28: Accessories
Accessories ISEmax CAS40D Accessories The following are the most important accessories available at the time this documentation was issued. ‣ For accessories not listed here, please contact your Service or Sales Center. 11.1 Assembly holder Flexdip CYH112 • Modular holder system for sensors and assemblies in open basins, channels and tanks •... -
Page 29: Compressed Air Cleaning
ISEmax CAS40D Accessories High-quality buffer solutions from Endress+Hauser - CPY20 The secondary buffer solutions have been referenced to primary reference material of the PTB (German Federal Physico-technical Institute) or to standard reference material of NIST (National Institute of Standards and Technology) according to DIN 19266 by a laboratory accredited by the DAkkS (German accreditation body) according to DIN 17025. -
Page 30: Technical Data
Technical data ISEmax CAS40D Technical data 12.1 Input Measured values Depending on version: • Ammonium: NH -N, NH [mg/l] • Nitrate: NO -N, NO [mg/l] • Potassium, K [mg/l] • Chloride, Cl [mg/l] • pH value • Temperature Measuring ranges •... -
Page 31: Environment
ISEmax CAS40D Technical data Automatic cleaning • Cleaning medium: • Pressure: 3 to 3.5 bar (45 to 50 psi) • Volume of air required per cleaning cycle: 3 to 4 l (0.8 to 1 US gal) • Cleaning duration: 4 to 15 s •... - Page 32 Technical data ISEmax CAS40D Materials Sensor: Protective cage: Electrode holder: Radial seal for sensor head and electrode holder: Silicone O-rings in ISE holder: EPDM O-rings for air nozzle: VITON Sensor pipe with coupling nut: Retaining bracket: Stainless steel Sensor head:...
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Page 33: Index
ISEmax CAS40D Index Index 0 … 9 1-point calibration ......18 Nameplate ....... . . 7 2-point calibration . - Page 36 *71505793* 71505793 www.addresses.endress.com...