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NitraVis 70x IQ TS

Measurement / Operation

 23

ba75952e03

05/2017

4.2

Measurement operation

Measured value

display

Fig. 4-2 NitraVis 70x IQ TS

 

Factors affecting the

measured values

The following factors can adversely affect the measurement quality:

The measuring gap is not sufficiently filled and flowed through by the test 

sample

Foreign bodies and air bubbles are in the measuring gap

Extraordinary changes (interferences) of the sample matrix

Contaminated measurement windows due to difficult sample matrix

Damaged measuring windows

Lacking quality of the zero adjustment, e. g. due to contaminated ultrapure 

water

The user calibration is not representative (or erroneous)

4.3

Calibration

4.3.1 Overview

In the delivery condition, the sensor is precalibrated and ready to measure (see 

section 3.4.1).
There are two types of calibration that are included into the calculation of the 

CAUTION

Never look into the measuring window or put objects into the 

measuring 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.

Raw value,

identifiable by #

Measured value

Summary of Contents for NitraVis 701 IQ TS

Page 1: ...OPERATING MANUAL ba75952e03 05 2017 NitraVis 701 IQ TS NitraVis 705 IQ TS OPTICAL SENSOR FOR NITRATE AND TOTAL SUSPENDED SOLIDS TSS...

Page 2: ...2 ba75952e03 05 2017 NitraVis 70x IQ TS Copyright 2017 Xylem Analytics Germany GmbH Printed in Germany...

Page 3: ...equirements for safe operation 9 2 2 3 Unauthorized use 9 3 Commissioning 10 3 1 IQ SENSORNET system requirements 10 3 2 Scope of delivery of the NitraVis 70x IQ TS 10 3 3 Installation 11 3 3 1 Mounti...

Page 4: ...c cleaning 37 5 2 4 Cleaning the measuring gap 38 6 Spare parts maintenance equipment accessories 39 7 What to do if 41 8 Technical data 44 8 1 Measurement characteristics 44 8 2 Application character...

Page 5: ...ng manual has a modular structure like the IQ SENSORNET itself It consists of a system operating manual and the operating manuals of all the components used Please file this component operating manual...

Page 6: ...orts the ultrasound cleaning system as necessary 1 3 Measuring principle of the sensor NitraVis 70x IQ TS The sensor operates according to the measuring principle of UV VIS spectrom etry Any substance...

Page 7: ...beam the reference beam 8 over a distance without measuring solution The test sample is between both measurement windows 3 in the measuring gap The receiver of the optical system 4 directs the measur...

Page 8: ...might be damaged if the actions mentioned are not taken 2 1 2 Safety signs on the product Note all labels information signs and safety symbols on the product A warning symbol triangle without text re...

Page 9: ...nts for safe operation Note the following points for safe operation The product may only be operated according to the authorized use specified above The product may only be supplied with power by the...

Page 10: ...pe of delivery SensorNitraVis 70x IQ TS Sensor sleeve Shock protectors Operating manual DIQ S 28X Controller software Version 3 72 or higher DIQ S 182 Controller software Version 3 45 or higher MIQ MC...

Page 11: ...t contact corrosion NOTE Do not suspend the sensor on the sensor connection cable Risk of cable break and water penetration at the cable gland A wide range of mounting accessories is available for the...

Page 12: ...rate is 0 2 m s so the measuring gap is kept clean optimally Fig 3 2 Vertical installation Protection against shocks When installing the sensor always make sure it cannot knock against a wall or anoth...

Page 13: ...tectors proceed as follows Fig 3 4 Mounting the shock protectors 1 Plug the cap pos 2 in Fig 3 4 on one of the two rings pos 1 2 Put the assembled unit on the sensor end and fix it with 2 cable ties p...

Page 14: ...NSORNET accessories is given in the WTW catalog and on the Internet Are the plug connections dry Before connecting the sensor and sensor connection cable please make sure the plug connections are dry...

Page 15: ...or and the SACIQ SW sensor connection cable and keep them safe 2 Plug the socket of the SACIQ SW sensor connection cable onto the plug head connector of the sensor At the same time rotate the socket s...

Page 16: ...he factory The sensor is immediately ready to measure Use calibration after initial ommissioning On the basis of a reference measurement laboratory value check whether the default settings deliver suf...

Page 17: ...the system under the designation NitraVis 70x IQ TS and the series number of the physical sensor Secondary sensor The sensor for the measurement of total suspended solids is the secondary sensor It r...

Page 18: ...ut settings Using S switch from the measured value display to the main menu of the settings Then navigate to the setting menu setting table of the sensor The procedure is described in detail in your I...

Page 19: ...sensor When the measurement location is changed all virtual sensors are deleted Measuring range Display of the measuring range see chapter 8 TECHNICAL DATA Cal raw value 1 Value pairs of the user cali...

Page 20: ...f the automatic time controlled cleaning function Cleaning type Ultrasound Air Ultrasound air Cleaning methods adjustment time This menu item is only available with Cleaning mode On The duration of th...

Page 21: ...uring mode TSS Display of the measuring mode TSS total suspended solids measure ment Measuring range Display of the measuring range see chapter 8 TECHNICAL DATA Cal raw value 1 Value pairs of the user...

Page 22: ...nt the absorbance spectrum of the test sample is recorded and set against the stored absorbance spectrum of a zero adjustment measure ment in ultrapure water The algorithm for the calculation depends...

Page 23: ...ue to difficult sample matrix Damaged measuring windows Lacking quality of the zero adjustment e g due to contaminated ultrapure water The user calibration is not representative or erroneous 4 3 Calib...

Page 24: ...chamber or on the measurement windows affect the measured values A Sensor check H2O dest determines the condition of the sensor By checking the sensor with the aid of the Sensor check H2O dest you ca...

Page 25: ...was thoroughly cleaned If the Zero adjustment is not successful the sensor is blocked for measurement A successful Zero adjustment is required for the determination of measured val ues Sensor check s...

Page 26: ...rking point of the applica tion This method results in a single point calibration If the application has to cover a wide value range with high measuring accuracy both value pairs should be used for ca...

Page 27: ...t dimension and note it down In the case of fluctuating values carry out several measurements and average the individual raw values 7 Take a sample at the same time as the measurement and as close to...

Page 28: ...cond value pair higher concentration or raw value of the single point calibration Cal ref value 2 0 00 5000 00 Reference value of the second value pair higher concentration or reference value of the s...

Page 29: ...age location of the Zero adjustment data The data of the sensor checks are not stored The data of the user zero adjustment are stored in the sensor Outlet A successful Sensor check H2O dest is the pre...

Page 30: ...perating error or defective sensor Sensor blocked for measurement Sensor check Standard OK Error 40 40 40 or 40 Operating error or defective sensor Zero adjustment Error OK After several zero adjustme...

Page 31: ...sh ing invalid measured value 4 Confirm the maintenance condition with OK 5 Take the sensor out of the test sample 6 Remove the blind plug or unscrew the compressed air connection from the sensor 7 Th...

Page 32: ...ure water or For Sensor check standard Fill the measuring chamber with standard solution see section 6 12 If there are any air bubbles on the measuring windows remove them by gently knocking on the se...

Page 33: ...em continues to work with the old calibration data The maintenance condition however has to be switched off again in any case After starting the calibration with the OK key step 16 you can no longer c...

Page 34: ...ul Error Sensor check standard not successful Possible cause wrong or expired standard 17 Confirm the calibration result with OK 18 Confirm the message After successful cal with OK The display returns...

Page 35: ...rinse the sensor with ultrapure water Accessories Sponge Plastic bristled brushes of different sizes Interdental brushes are suitable for the cleaning of the compressed air chan nels Flocked cleaning...

Page 36: ...adjustment should be carried out must run through all cleaning steps properly During the cleaning process always keep all surfaces moist to prevent already dissolved contamination and detergents from...

Page 37: ...cable and mounting parts Note Follow the instruction manual of the disinfectant reaction time 4 Remove the blind plug or unscrew the compressed air connection from the sensor 5 Clean the sensor with...

Page 38: ...ssary leave the cleaning card in the measuring gap for a few minutes so the detergent can take effect Thoroughly rinse with ultrapure water the measuring gap and the surrounding areas moistened with d...

Page 39: ...th low concentration for 5 mm UVVIS SAC NOx sensors ST 1 481 077 Standard 2 with high concentration for 1 mm UVVIS SAC NOx sensors ST 2 481 078 Description Model Order no Compressed air cleaning set w...

Page 40: ...r no Mounting set for horizontal installation with EH F 170 swing mounting assembly VIS Set EH 481 073 Set for the mounting of UVVIS SAC NOx sensors to the S 200 electrode floater VIS Set F 481 080 Fl...

Page 41: ...n 4 3 3 Zero adjustment still erroneous after several trials Contact service Unknown See log book Cause Remedy Erroneous user calibration Repeat user calibration Make sure the samples for comparison a...

Page 42: ...cleaning system Clean the measurement windows section 5 2 4 Check all components of the com pressed air cleaning system com pressor compressed air line sensor rinsing openings Substantial change of t...

Page 43: ...NSORNET cable towards the NitraVis 70x IQ TS too long volt age drop too great Install another power supply module in the vicinity of the sensor Electrical connection between power supply module and Ni...

Page 44: ...idth Lamp type Xenon flashlamp Photo diodes 256 NitraVis 701 IQ TS 1 mm NitraVis 705 IQ TS 5 mm Measuring location Measuring mode Measuring range Resolution Inlet NO3 0 0 300 0 mg L 0 1 mg L NO3 N 0 0...

Page 45: ...suring mode Measuring range Resolution Outlet TSS 0 0 900 0 mg L 0 1 mg L The quoted measuring ranges are nominal measuring ranges that are theoretically possible In practice real measuring ranges exi...

Page 46: ...protection 60 96 891 120 Socket SACIQ With shock protection 774 865 381 Approx 3 8 kg without shock protectors and without sensor connec tion cable Approx 4 8 kg with shock protectors but without sen...

Page 47: ...I UL 61010 1 Certified to CAN CSA C22 2 61010 1 Nominal voltage Max 24VDC via the IQ SENSORNET for more details see chapter TECHNICAL DATA of the IQ SENSORNET system operating manual Power consumption...

Page 48: ...sages contain an internal error code starting with Information on the contents and structure of the log book and the structure of the message code is given in the LOG BOOK chapter of the IQ SENSORNET...

Page 49: ...trapure water Repeat the zero adjustment EAM3Ax Meas range exceeded or undercut Check process EC33Ax User calibration erroneous Check raw value reference value pairs Set all values within the measurin...

Page 50: ...rflow optical measurement Execute zero ajustment ES5541 Failure optical measurement hardware Contact service ES6541 Failure optical measurement software Contact service ES7541 Failure optical measurem...

Page 51: ...Make sure the sensor operates correctly IC4541 The last valid user zero adjustment was activated Make sure the sen sor operates correctly IC5541 Invalid user zero adjustment was replaced by last vali...

Page 52: ...tings Service List of all compo nents menu see system operating manual by an automated query from a superordinate process control e g when connected to the Profi bus of the IQ Data Server see operatin...

Page 53: ...O concentration Measured value The measured value is the special value of a measured parameter to be determined It is given as a combination of the numerical value and unit e g 3 m 0 5 s 5 2 A 373 15...

Page 54: ...ple ready to be measured Ultrapure water H2O dist Ultrapure water is distilled or deionized water suitable for analysis purposes Zero adjustment Measuring and saving the absorbance spectrum of ultrapu...

Page 55: ......

Page 56: ...rove the way water is used conserved and re used in the future is central to our work Our products and services move treat analyze monitor and return water to the environment in public utility industr...

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