Related Manuals for wtw NitraVis 70 IQ TS Series
Summary of Contents for wtw NitraVis 70 IQ TS Series
- Page 1 Operating manual IQ S ENSOR NitraVis 701 IQ TS NitraVis 705 IQ TS NitraVis 701 IQ TS Optical sensor for the NitraVis 705 IQ TS spectral determination of nitrate and total suspended solids (TSS) ba75952e02 11/2012...
- Page 2 The latest version of the present operating manual can be found on the Internet at www.WTW.com. © Copyright Weilheim 2012, WTW GmbH Reprinting - even as excerpts - is only allowed with the explicit written authorization of WTW GmbH, Weilheim. Printed in Germany. ba75952e02 11/2012...
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Page 3: Table Of Contents
NitraVis 70x IQ TS Contents NitraVis 70x IQ TS - Contents Overview ........3-1 How to use this component operating manual . - Page 4 NitraVis 70x IQ TS Maintenance and cleaning ..... . .7-1 Maintenance ........7-1 Sensor cleaning .
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Page 5: Overview
Overview NitraVis 70x IQ TS Overview How to use this component operating manual Structure of the operating IQ S IQ Sensor Net Operating Manual ENSOR manual System Operating Manual (Ring Binder) IQ Sensor MIQ Module MIQ Terminal Operating Operating Operating Manual Manual Manual... -
Page 6: Fields Of Application
Overview NitraVis 70x IQ TS Fields of application The range of application comprises control, feedback control and mon- itoring. Measuring location NitraVis 701 IQ TS Aeration tank or inlet NitraVis 705 IQ TS Outlet Ultrasound cleaning The ultrasound cleaning system ensures low maintenance and long- system term reliable measurement operation. -
Page 7: Structure Of The Uv-Vis Sensor
Overview NitraVis 70x IQ TS Structure of the UV-VIS sensor A UV-VIS sensor contains a light source (1), a measuring gap (3) to enable the contact of light with the measuring solution, and a detector (5) to measure the attenuated light beam. The sender of the optical system (2) directs a light beam, the measuring beam (6), through the measuring solution and a second light beam, the reference beam (8), over a distance without measuring solution. - Page 8 Overview NitraVis 70x IQ TS 1 - 4 ba75952e02 11/2012...
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Page 9: Safety
Safety NitraVis 70x IQ TS Safety Safety information 2.1.1 Safety information in the operating manual This operating manual provides important information on the safe operation of the product. Read this operating manual thoroughly and make yourself familiar with the product before putting it into operation or working with it. The operating manual must be kept in the vicinity of the meter so you can always find the infor- mation you need. -
Page 10: Safe Operation
Safety NitraVis 70x IQ TS Safe operation 2.2.1 Authorized use The authorized use of the NitraVis 70x IQ TS consists of its use as a sensor in the IQ S . Only the operation and running of the product according to ENSOR the instructions and technical specifications given in this operating manual is authorized (see chapter 8 T... -
Page 11: Commissioning
Commissioning NitraVis 70x IQ TS Commissioning IQ S system requirements ENSOR Software statuses of the The operation of the NitraVis 70x IQ TS requires the following software controller and terminal versions in the IQ S ENSOR components DIQ/S 182 Controller software: Version 3.45 or higher ... -
Page 12: Installation
Commissioning NitraVis 70x IQ TS Installation 3.3.1 Mounting the sensor Note The sensor is an optical precision instrument that is to be protected against shocks. Make sure the distances to the wall, bottom and other installation surroundings are sufficient. If necessary, protect the sensor from hitting with the protective ring provided. - Page 13 Commissioning NitraVis 70x IQ TS Vertical installation For vertical installation, mount the sensor in a position that allows inter- fering elements in the measuring gap to escape with the current. In the case of vertical installation, the minimum flow rate is 0.2 m/s so the measuring gap is kept clean optimally.
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Page 14: Mounting The Shock Protectors
Commissioning NitraVis 70x IQ TS 3.3.2 Mounting the shock protectors The shock protectors consist of two rings, a cap and four cable ties. To mount the shock protectors, proceed as follows: Sensor with mounted shock protectors Fig. 3-4 Mounting the shock protectors Plug the cap (pos. -
Page 15: Connecting The Sensor To The Iq S
NitraVis 70x IQ TS . Information on this and other IQ S ENSOR accessories is given in the WTW catalog and on the Internet. How to connect the SACIQ (SW) sensor connection cable to the termi- nal strip of an MIQ module is described in chapter 3 I... - Page 16 Commissioning NitraVis 70x IQ TS Connecting the sensor to Take the protective caps off the plug connections of the sensor the sensor connection and the SACIQ (SW) sensor connection cable and keep them cable safe. Plug the socket of the SACIQ (SW) sensor connection cable onto the plug head connector of the sensor.
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Page 17: Initial Commissioning
Commissioning NitraVis 70x IQ TS Initial commissioning 3.4.1 General information CAUTION Never look into the measuring window or put objects into the measur- ing window during operation! The emitted UV radiation can damage the eyes! In the case of authorized use, inadvertent eye contact with the light beam is not possible. -
Page 18: Sensor Structure
Commissioning NitraVis 70x IQ TS 3.4.2 Sensor structure The physical sensor is the sensor with the instrument or model desig- nation, NitraVis 70x IQ TS. The physical sensor processes the mea- surement signal (absorbance spectrum) and supplies up to 5 measurement results to the IQ S . -
Page 19: Settings For The Main Sensor
Commissioning NitraVis 70x IQ TS 3.4.3 Settings for the main sensor Measuring cycle A measuring cycle consists of the cleaning procedure, the adjustment time for the measuring system and the determination of the measured value. The following graphic demonstrates the relevant settings: Measuring cycle Time... - Page 20 Commissioning NitraVis 70x IQ TS Menu item Settings Explanations Cal - # raw value 1 Value pairs of the user calibration (see section 4.3.2). Note: Leave those values unchanged during the initial commission- Cal - ref. value 1 ing. Cal - # raw value 2 Cal - ref.
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Page 21: Settings Of The Secondary Sensor (Tss Measurement)
Commissioning NitraVis 70x IQ TS Menu item Settings Explanations Cleaning type Ultrasound Cleaning methods This menu item is only available with: Cleaning mode Ultrasound+air The duration of the cleaning procedure is defined in the sensor for all cleaning types. - Page 22 Commissioning NitraVis 70x IQ TS Menu item Settings Explanations Main sensor Information that there are further sensor overlapping settings in the setting menu of Meas. interval the relevant main sensor ( Cleaning duration Signal smoothing etc.). Save and quit The system confirms the saving of the set- tings and the display switches to the next higher level.
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Page 23: Measuring / Operation
Measuring / Operation NitraVis 70x IQ TS Measuring / Operation Determination of measured values Fig. 4-1 Determination of measured values During a measurement, the absorbance spectrum of the test sample is recorded and set against the stored absorbance spectrum of a zero adjustment (measurement in ultrapure water). -
Page 24: Measuring Operation
Measuring / Operation NitraVis 70x IQ TS Measuring operation CAUTION Never look into the measuring window or put objects into the measur- ing window during operation! The emitted UV radiation can damage the eyes! In the case of authorized use, inadvertent eye contact with the light beam is not possible. -
Page 25: Calibration
Measuring / Operation NitraVis 70x IQ TS Calibration 4.3.1 Overview In the delivery condition, the sensor is precalibrated and ready to mea- sure (see section 3.4.1). There are two types of calibration that are included into the calculation of the measured value at different points (see section 4.1): ... - Page 26 Measuring / Operation NitraVis 70x IQ TS Sensor check (H2O dest.) The characteristics of a sensor and thus the measured values provided by it change in the course of time. The reasons for this can be the aging of the sensor, or contamination or mechanical damage of the sensor.
- Page 27 Measuring / Operation NitraVis 70x IQ TS 4.3.2 User calibration Calibration points and The adjustment is carried out at one or two points within the measuring value pairs range. A value pair is determined at each point. Each value pair consists of the raw value of the UV-VIS sensor and the corresponding reference value.
- Page 28 Measuring / Operation NitraVis 70x IQ TS Performing a user Proceed as follows if you want to perform a user calibration: calibration Settings of sensors and diff. sensors Signal In the menu, set the smoothing setting to Save and quit Subsequently, leave the menu with Settings of sensors and diff.
- Page 29 Measuring / Operation NitraVis 70x IQ TS Default values are marked in bold. Menu item Settings Explanations Cal - # raw value 1 0.00 ... 5000.00 Raw value of the first value pair (lower concentration). For single-point calibration, enter 0. Cal - ref.
- Page 30 Measuring / Operation NitraVis 70x IQ TS Zero adjustment 4.3.3 Sensor check/ Note The sensor check or Zero adjustment must be carried out under abso- lutely clean conditions. If you do not work carefully enough the Zero ad- justment can deteriorate the measuring quality. Ultrapure water As ultrapure water exclusively use distilled or deionized water that is (H2O dist.)
- Page 31 Measuring / Operation NitraVis 70x IQ TS Flowchart Cleaning the sensor Sensor check (H2O dist.) Clean the measurement windows Assessment number Rinse the measuring chamber -40 ... +40 < -40 or with ultrapure water several times > +40 Carry out a sensor check (H2O) After cleaning several times without significant change of the sensor assesssment:...
- Page 32 Measuring / Operation NitraVis 70x IQ TS Zero adjustment Preparing the sensor Prepare the sensor check or as follows: check or Zero adjustment Switch to the measured value display with <M>. Use <> to select the UV-VIS sensor. Maintenance condition: Call up calibration with <C>.
- Page 33 Measuring / Operation NitraVis 70x IQ TS Measuring chamber Sensor sleeve Fig. 4-5 Putting the sensor sleeve on the sensor Put the sensor in a horizontal position on a firm and vibration- free surface. Turn the filling opening of the sensor sleeve upward (Fig.
- Page 34 Measuring / Operation NitraVis 70x IQ TS Start measurement Confirm each checklist with <OK> until the display appears. Up to this point, you can break off the calibration procedure at any time with the <ESC> key. The system continues to work with the old calibra- tion data.
- Page 35 Measuring / Operation NitraVis 70x IQ TS If no valid zero adjustment is possible under the current conditions, you can restore the readiness for measurement by measuring with an older valid zero adjustment. Zero adjustment To do so, select the setting in the sensor settings Factory User...
- Page 36 Measuring / Operation NitraVis 70x IQ TS 4 - 14 ba75952e02 11/2012...
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Page 37: Maintenance And Cleaning
Maintenance and cleaning NitraVis 70x IQ TS Maintenance and cleaning Maintenance The UV-VIS NitraVis 70x IQ TS sensor operates maintenance-free. Sensor cleaning 5.2.1 Cleaning agents and accessories Cleaning agents To clean the sensor, use the following cleaning agents only: Contamination Cleaning agents Water-soluble substances –... -
Page 38: General Steps To Be Taken
Maintenance and cleaning NitraVis 70x IQ TS 5.2.2 General steps to be taken Depending on the application site and the level of contamination of the sensor as well as the coming job, the cleaning procedure includes the following parts: Every cleaning procedure starts with a basic cleaning. It removes tough grime such as incrustation of fouling matter, algae and biolog- ical deposits. -
Page 39: Basic Cleaning
Maintenance and cleaning NitraVis 70x IQ TS 5.2.3 Basic cleaning Steps of the basic Take the sensor out of the test sample and remove any solid cleaning matter deposits and incrustation of fouling matter manually with a brush or sponge. Wash the sensor down with warm tapwater (30 - 50 °C). -
Page 40: Cleaning The Measuring Gap
Maintenance and cleaning NitraVis 70x IQ TS 5.2.4 Cleaning the measuring gap To remove lime or grease deposits, use the flocked cleaning cards together with the following detergents: Contamination Cleaning agents Lime deposits Hydrochloric acid 5 % for analysis Grease deposits Mixture of isopropanol and water (approx. -
Page 41: Spare Parts, Maintenance Equipment, Accessories
Spare parts, maintenance equipment, accessories NitraVis 70x IQ TS Spare parts, maintenance equipment, accessories General accessories, Description Model Order no. replacement parts Calibration sleeve VIS/CV 481 074 20 flocked cleaning cards for VIS/CT 481 071 cleaning the measuring gap Cleaning set: VIS C/SET 481 079 –... - Page 42 VIS Set/EH 481 073 lation with EH/F 170 swing mount- ing assembly Flow-through armature VIS FT-1 480 080 Information on other IQ S accessories is given in the WTW ENSOR catalog and on the Internet. 6 - 2 ba75952e02 11/2012...
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Page 43: What To Do If
Sensor check (standard) Sensor check (standard) defective Check conditions, especially cleanliness (section 4.3.3) Zero adjustment – still errone- – Contact WTW ous after several trials – Unknown – See log book Implausible measured Cause Remedy values – Erroneous user calibration –... - Page 44 What to do if... NitraVis 70x IQ TS Drifting measured values Cause Remedy – Cleaning efficiency too low - – Clean the measurement win- measurement windows dows (section 5.2.4) becoming more and more – Use other cleaning method contaminated – Select different measurement location –...
- Page 45 What to do if... NitraVis 70x IQ TS Measured values too low Cause Remedy or too high – Gas bubbles in front of the – Check the installation position measurement windows of the sensor – Measurement windows dirty – Clean the measurement win- dows ERROR Display of...
- Page 46 What to do if... NitraVis 70x IQ TS 7 - 4 ba75952e02 11/2012...
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Page 47: Technical Data
Technical data NitraVis 70x IQ TS Technical data Measurement characteristics Measuring principle Spectrophotometric absorption measurement; integrated micropro- cessor electronics, shielded 2-wire connection for power and data transmission. Wavelength range 200 - 720 nm NitraVis 701 IQ TS 1 mm Measuring gap (optical NitraVis 705 IQ TS 5 mm layer thickness) -
Page 48: Application Conditions
Technical data NitraVis 70x IQ TS cantly influenced by the light scattering due to solids and the absorption of accompanying substances (sample matrix). Therefore, no fixed measuring range can be determined beforehand. Application conditions Suitability and areas of Municipal wastewater with a low proportion of industrial wastewater application Measuring medium: pH value... -
Page 49: General Data
Technical data NitraVis 70x IQ TS General data Dimensions hock protection: (in mm) Ø 96 Socket SACIQ... Ø 60 With shock protection: Ø 96 Weight Approx. 3.8 kg (without shock protectors and without sensor connec- tion cable) Approx. 4.8 kg (with shock protectors but without sensor connection cable) Connection technique Connection via SACIQ (SW) sensor connection cable... -
Page 50: Electrical Data
Technical data NitraVis 70x IQ TS Instrument safety Applicable norms – EN 61010-1 – UL 61010-1 – CAN/CSA C22.2#61010-1 – IEC 62471 Test certificates cETLus, CE Conforms to ANSI/UL 61010-1 Certified to CAN/CSA C22.2#61010-1" 2001759 Electrical data Nominal voltage Max. 24VDC via the IQ S (for more ENSOR... -
Page 51: Indexes
Indexes NitraVis 70x IQ TS Indexes Explanation of the messages This chapter contains a list of all the message codes and related message texts that can occur in the log book of the IQ S ENSOR system for the NitraVis 70x IQ TS. Information on the contents and structure of the log book and the struc- ture of the message code is given in the L chapter of the... -
Page 52: Error Messages
Indexes NitraVis 70x IQ TS 9.1.1 Error messages Message code Message text Sensor temperature too high! EA2541 * Check process and application Sensor temperature too low! EA3541 * Check process and application Zero adjustment erroneous EAI541 * Clean the sensor and sensor sleeve repeatedly * Position the sensor sleeve according to operating manual * Rinse the measuring chamber with ultrapure water several times * Fill the measuring chamber with ultrapure water... - Page 53 Indexes NitraVis 70x IQ TS Message code Message text Failure optical measurement: hardware ES5541 * Contact service Failure optical measurement: software ES6541 * Contact service Failure optical measurement: software BIOS ES7541 * Contact service ba75952e02 11/2012 9 - 3...
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Page 54: Info Messages
Indexes NitraVis 70x IQ TS 9.1.2 Info messages Message code Message text Zero adjustment was successfully carried out IAC541 * Carry out sensor check * If required, carry out new user calibration The factory zero adjustment was activated. Make sure the sensor op IC3541 erates correctly. -
Page 55: Status Info
Indexes NitraVis 70x IQ TS Status info The status info is a coded piece of information on the current status of a sensor. Each sensor sends this status info to the controller. The sta- tus info of sensors consists of 32 bits, each of which can have the value 0 or 1. - Page 56 Indexes NitraVis 70x IQ TS 9 - 6 ba75952e02 11/2012...
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Page 57: Appendix: Glossary
Appendix: Glossary NitraVis 70x IQ TS Appendix: Glossary Resolution Smallest difference between two measured values that can be displayed by a meter. Absorbance Attenuation of the light beam when it penetrates the sample. (Absorption) Adjusting To manipulate a measuring system so that the relevant value (e. g. the displayed value) differs as little as possible from the correct value or a value that is regarded as correct, or that the difference remains within the tolerance. - Page 58 Appendix: Glossary NitraVis 70x IQ TS NO2-N The proportion of nitrogen coming from nitrite. NO3-N The proportion of nitrogen coming from nitrate. Zero adjustment Measuring and saving the absorbance spectrum of ultrapure water. Defines the zero points in the spectrum for all wavelengths. The light beam is not alleviated at the zero point.
- Page 60 Wissenschaftlich-Technische Werkstätten GmbH Dr.-Karl-Slevogt-Straße 1 D-82362 Weilheim Germany Tel: +49 (0) 881 183-0 +49 (0) 881 183-100 Fax: +49 (0) 881 183-420 E-Mail: Info@WTW.com Internet: http://www.WTW.com...