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AmmoLyt

®

700 IQ

ba75353e05

03/2006

Accuracy when going to

press

The use of advanced technology and the high quality standard of our
products are the result of continuous development.
This may result in differences between this operating manual and your
sensor. Also, we cannot guarantee that there are absolutely no errors
in this manual. Therefore, we are sure you will understand that we can-
not accept any legal claims resulting from the data, figures or descrip-
tions.

Note

The latest version of the present operating manual can be found on the
Internet under www.WTW.com.

Copyright

©

Weilheim 2006, WTW GmbH

Reprinting - even as excerpts - is only allowed with the explicit written
authorization of WTW GmbH, Weilheim.
Printed in Germany.

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Содержание AmmoLyt 700 IQ

Страница 1: ...ba75353e05 03 2006 AmmoLyt 700 IQ Operating manual IQ SENSOR NET ammonium sensor...

Страница 2: ...we cannot guarantee that there are absolutely no errors in this manual Therefore we are sure you will understand that we can not accept any legal claims resulting from the data figures or descrip tio...

Страница 3: ...nformation 4 1 4 1 2 Overview of the calibration procedures 4 2 4 1 3 Calibration in practice 4 3 4 1 4 General course of a calibration 4 5 4 1 5 Calibration procedure 1 point standard 1 4 8 4 1 6 Cal...

Страница 4: ...Technical data 8 1 8 1 Measuring properties 8 1 8 2 Operating characteristics 8 1 8 3 General features 8 2 8 4 Electrical data 8 3 9 Indexes 9 1 9 1 Explanation of the messages 9 1 9 1 1 Error message...

Страница 5: ...anual Fig 1 1 Structure of the IQ SENSOR NET operating manual The IQ SENSOR NET operating manual has a modular structure like the IQ SENSOR NET itself It consists of a system operating manual and the...

Страница 6: ...indirect effects of lightning strikes 1 3 Recommended fields of application The AmmoLyt 700 IQ ammonium sensor forms a measuring system for the online determination of ammonium ions It supplements th...

Страница 7: ...developed for applications in online measurement essentially in the field of wastewater treatment Thus we assume that the operators are familiar with the necessary precauti ons to take when dealing wi...

Страница 8: ...R NET accessories 2 2 General safety instructions The sensor left the factory in a safe and secure technical condition Function and operational safety The failure free function and operational safety...

Страница 9: ...erse conditions for a lengthy period of time is visibly damaged no longer operates as described in this manual If you are in any doubt contact the supplier of your sensor Obligations of the operator T...

Страница 10: ...AmmoLyt 700 IQ 2 4 ba75353e05 03 2006...

Страница 11: ...ly be immer sed in conjunction with a mounted combination electrode Moistu re must be prevented from penetrating the ammonium sensor during the replacement of the electrode as otherwise the sensor cou...

Страница 12: ...sensor and the SACIQ sensor connection cable and keep them safe 2 Plug the jack of the SACIQ sensor connection cable onto the plug head connector of the sensor At the same time rotate the socket so th...

Страница 13: ...700 IQ sensor can be used as a wrench 1 Unscrew the protective hood from the sensor 2 Pull off the blind plug from the plug head socket of the sensor 3 Prepare the combination electrode to be mounted...

Страница 14: ...ease the two sealing rings 1 of the AmmoLyt electrode using the grease from the tube supplied 5 Unscrew the protection cap from the plug head of the reference electrode 6 Screw the reference electrode...

Страница 15: ...top 8 Screw the protective hood onto the sensor 9 Carry out the settings for the sensor on the terminal of the measuring system see section 3 4 10 In the case of initial commissioning condition the se...

Страница 16: ...voltage of the electrode Measuring range NH4 AutoRange 1 1290 mg l 0 1 129 0 mg l 2 measuring ranges can be selected With AutoRange the instrument automati cally switches to the suitable measuring ra...

Страница 17: ...m the change in potential A known quantity of a standard solution is added to the test sample in two steps The NH4 concentration in the test sample is determined from the change in potential during th...

Страница 18: ...otassium compens On Off Potassium ions in the test sample interfere with the measurement and lead to increa sed values see section 4 2 2 After determining the potassium content of the test sample by a...

Страница 19: ...g 3 3 140 Settings of sensors and diff sensors 5 Confirm the selection with g The settings of the sensor are displayed 6 Make the sensor settings with d and confirm each of them with g 7 Select the Sa...

Страница 20: ...AmmoLyt 700 IQ 3 10 ba75353e05 03 2006...

Страница 21: ...y calibrate Calibrate during the initial commissioning after exchanging an elec trode and at regular intervals depending on the application Calibration log and calibration history The calibration hist...

Страница 22: ...n Double std add 5 Calibration in the test sample with a double addition of standard solu tion Determined calibration data Depending on the calibration procedure single point or two point the followin...

Страница 23: ...ting 59 16 mV is taken over A value that is taken over is marked with in the calibration history see section 4 1 10 Following the initial calibration we recommend to carry out a calibration with the 1...

Страница 24: ...Calibration and measuring AmmoLyt 700 IQ 4 4 ba75353e05 03 2006 Optimum calibration of an electrode Fig 4 1 Sequence of calibrations...

Страница 25: ...or the entire combination electrode an initial calibration see section 4 1 3 always has to be carried out Course Fig 4 2 Maintenance condition Note When the maintenance condition is activated linked...

Страница 26: ...the e key The system continues to work with the old calibration data Howe ver you have to switch off the maintenance condition in any case 5 Confirm with g The following display or similar depending o...

Страница 27: ...not successful appears on the display and a corresponding entry with instructions appears in the log book Follow the instructions and repeat the calibration 7 Confirm with g The measured value display...

Страница 28: ...rd solu tion for this The ammonium value should be as close to the value expected for the test sample as possible Confirm with g Select standard concentration 1 10 100 mg l NH4 N If necessary select a...

Страница 29: ...for measuring again by simply abolishing the maintenance condition The sensor continues to use the old calibration data The reference vol tage determined in step 1 of the calibration is not lost It r...

Страница 30: ...ating steps during step 2 1 Take a sample 2 Determine the concentration of ammonium and potassium in the laboratory With this procedure the potassium content of the sample affects calibration as well...

Страница 31: ...function and adjust the potassium content see section 3 4 The potassium content of the sample does not effect calibration but the measurement following If you carry out a 1 point ref 2 calibration dir...

Страница 32: ...g Subsequently wait for the condi tioning time of 15 minutes to expire The remaining time is shown on the display Discard used standard Immerse sensor in new standard with simi lar concentration Start...

Страница 33: ...ration range for simple standard addition Observe the following points for the simple standard addition The volume of the standard added to the test sample changes the test sample Therefore the volume...

Страница 34: ...N concentration is more in the center Example The expected average concentration is approx 3 5 mg l NH4 N The vertical line in the diagram crosses three ranges Concentration 1 g l and volume ratio 20...

Страница 35: ...4 Reference voltage of test sample determined Have standard ready Confirm with g The measurement of the test sample begins Select standard concentration 1 10 g l NH4 If necessary select the concen tra...

Страница 36: ...nt of the test sample affects the calibration result Concentration and quantity of standard solution The quantity of standard solution to be added is permanently fixed for the double standard addition...

Страница 37: ...ry select the volume of the sample with d Confirm with g Rinse electrode Immerse electrode in test sam ple Wait for a stable measured value Confirm with g The measure ment of the test sample begins Ca...

Страница 38: ...tage determined after first standard addition Confirm with g Add standard to sample Confirm with g Wait for a stable measured value Confirm with g The measurement begins Cal DOUBLE STD ADD 5 Reference...

Страница 39: ...story Sensor could not be calibrated Slope and or drift potential are outside the valid range Sensor blocked for measurement Service the sensor immediately see chapter 5 View the calibration history C...

Страница 40: ...it is not possible to determine the slope Instead the last determined value is taken over for the slope This applies to all 1 point calibration procedures 1 point standard 1 1 point ref 2 and Simple s...

Страница 41: ...nce of the pH value pH value 7 The pH value of the test sample affects the chemical balance between NH4 and NH3 From a pH value of 7 the NH4 part of the test sample decreases and the NH3 part increase...

Страница 42: ...f sensors and diff sensors menu see section 3 4 Potassium compensation for calibration The presence of potassium affects the calibration results of the follo wing calibration procedures 1 point ref 2...

Страница 43: ...ion the more the displayed measured value deviates from the current ammonium content Fig 4 8 shows the interrelationship of real and displayed NH4 N value for different potassium contents The characte...

Страница 44: ...Calibration and measuring AmmoLyt 700 IQ 4 24 ba75353e05 03 2006...

Страница 45: ...recommend unscrewing the measuring electrode from the sensor connection cable when changing the electrode Otherwise moisture and or dirt can get into the plug connection where it can cause contact pro...

Страница 46: ...ctrode proceed as follows 1 Unscrew the protective hood from the sensor 2 Use the protective hood as a tool to lever out the electrode 3 Carefully pull out the electrode until the plug head screwed fi...

Страница 47: ...AmmoLyt 700 IQ 5 3 ba75353e05 03 2006 5 Screw in a new electrode 6 Push the unit into the sensor up to the stop 7 Screw the protective hood onto the sensor...

Страница 48: ...nd disposing of the sensor as electronic refuse Electrodes If no official regulations apply to the contrary used and defective elec trodes can be treated as household waste 8 Calibrate the sensor and...

Страница 49: ...or the calibration procedures Simple std add 4 and Double std add 5 Model Order no AmmoLyt 700 IQ 107002 Model Order no Reference electrode AmmoLyt NHA 107004 Exchange electrode AmmoLyt NHA AT 107006...

Страница 50: ...0 IQ 6 2 ba75353e05 03 2006 Cleaning system Note Information on other IQ SENSOR NET accessories is given in the WTW catalog and on the Internet Model Order no CH Cleaning Head 900107 MIQ CHV Valve Mod...

Страница 51: ...sensor Instrument setting incorrect Correct instrument setting Cause Remedy No calibration performed Calibrate Electrode not connected or defective Check electrode and electrode connection Electrode c...

Страница 52: ...m cannot be calibrated Cause Remedy Slope of the electrode not within tolerance see section 4 1 10 Condition the electrode If the slope is still outside the tolerance Replace the elec trode Drift of t...

Страница 53: ...d temperature range Allowed pH range of the measuring medium 4 12 pH range for measurement 4 8 5 Pressure resistance Sensor with electrode and SACIQ sensor connection cable connected Measuring mode Me...

Страница 54: ...without electrode and sensor connection cable 970 g Integrable electrodes AmmoLyt NHA reference electrode and AmmoLyt NHA AT exchange electrode Connection technique Connection via SACIQ sensor connec...

Страница 55: ...a 8 3 ba75353e05 03 2006 8 4 Electrical data Nominal voltage Max 24 VDC via the IQ SENSOR NET for more details see TECHNICAL DATA chapter of the IQ SENSOR NET system operating manual Power consumption...

Страница 56: ...Technical data AmmoLyt 700 IQ 8 4 ba75353e05 03 2006...

Страница 57: ...OR NET system opera ting manual Note All message codes of the AmmoLyt 700 IQ end with the number 351 9 1 1 Error messages Message code Message text EA1351 Meas range exceeded or undercut Check process...

Страница 58: ...of all components menu see system operating manual by an automated query of a superordinate process control e g when connected to the Profibus of the IQ Data Server see IQ SENSOR NET Software Pack op...

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