background image

ba75353e05

03/2006

AmmoLyt

®

700 IQ

Operating manual

IQ S

ENSOR

 N

ET

 ammonium sensor

Summary of Contents for AmmoLyt 700 IQ

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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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