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VARiON

Plus

700 IQ H

Technical data

ba76207e02

12/2020

Measuring ranges and

resolution,

Chloride measurement

Interfering ions

compensation

Selectable procedures

for

interfering ions

compensation

Temperature

measurement

Temperature

compensation

Measuring
mode

Measuring range

Resolution

0.1 ... 100.0 mg/l
1 ... 1000 mg/l

0.1 mg/L
1 mg/L

-2000 ... +2000 mV

1 mV

Main measured parameter

Interfering ions that can be
compensated for

Ammonium

Potassium (K

)

Nitrate

Chloride (Cl

)

Compensation procedures

Description

Automatic

up to 1000 mg/l interfering ions
when equipped with the corre-
sponding compensation elec-
trode

Manual

without compensation electrode
by manual entry of the interfering
ions concentration
(range 0.1 ... 1000 mg/l).
Note: With the

Link (sensor to

sensor)

function, the

ENSOR

is able to provide

a measured value for the
interfering ion.

Sensing element type

integrated NTC

Measuring range

- 5 °C ... + 60 °C (23 ... 140 °F)

Accuracy

± 0.5 K

Resolution

0.1 K

Response time t

< 20 s

Automatic in the range 0 °C ... 40 °C (32 ... 104 °F)

Содержание YSI VARiON Plus 700 IQ H

Страница 1: ...OPERATING MANUAL ba76207e02 12 2020 VARiON Plus 700 IQ H MODULAR SENSOR FOR AMMONIUM AND NITRATE FOR CLASS I DIVISION 2 APPLICATIONS ...

Страница 2: ...02 12 2020 Contact YSI 1725 Brannum Lane Yellow Springs OH 45387 USA Tel 1 937 767 7241 800 765 4974 Email info ysi com Internet www ysi com Copyright 2020 Xylem Inc For the most recent version of the manual please visit www ysi com ...

Страница 3: ... Reference electrode 13 3 2 3 Measurement electrodes and compensation electrodes 14 3 3 Getting the sensor ready for measuring 15 3 3 1 Equipping the sensor with electrodes 15 3 3 2 Mounting the protective hood 16 3 3 3 Connecting the sensor to the IQ SENSORNET 18 3 4 Settings 20 3 4 1 General information 20 3 4 2 Setting table VARiON A ammonium sensor 21 3 4 3 Setting table VARiON N nitrate senso...

Страница 4: ...cessories 44 8 What to do if 46 8 1 Interpretation of the drift voltage 46 8 2 Error causes and remedies 47 9 Technical data 50 9 1 Measuring characteristics 50 9 2 Application conditions 52 9 3 General data 52 9 4 Instrument safety 54 9 4 1 General instrument safety 54 9 4 2 Hazardous location ratings 54 9 5 Electrical data 54 9 6 Data of the VARiON Plus electrodes 55 9 6 1 Response times 55 9 6 ...

Страница 5: ...ating 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 in the ring binder of the system operating manual IQ Sensor Net Operating Manual System Operating Manual Ring Binder IQ Sensor Operating Manual MIQ Module Operating Manual MIQ Terminal Operating M...

Страница 6: ...asuring technique can be automatically compensated for Interfering ions in water waste water applications are mostly chloride for nitrate measurement and potassium for ammonium measurement To determine the interfering ions concentration another electrode compensation electrode is mounted into a free receptacle If interfering ions concentrations should be dynamically compensated for both main param...

Страница 7: ...P blind plug Operating mode Electrode equipment Ammonium measurement compensated Nitrate measurement compensated Ammonium measurement compensated plus nitrate measurement Nitrate measurement compensated plus ammonium measurement Ammonium measurement Nitrate measurement Ref VARiON Plus NH4 VARiON Plus K Blind plug VARiON Plus Ref recess Ref VARiON Plus Ref VARiON Plus NO3 VARiON Plus Cl Blind plug ...

Страница 8: ...e VARiON Plus 700 IQ H sensor and the corresponding electrodes in conjunction with the IQ SENSORNET system form a measuring system that is protected to a high degree against low and high frequency interference as well as against the indirect effects of lightning strikes 1 3 Recommended fields of application Stationary measurements in water wastewater applications in Class I Division 2 hazardous lo...

Страница 9: ...ger 2 1 2 Safety information on the product Note all labels information signs and safety symbols on the product 2 1 3 Further documents providing safety information The following documents provide additional information which you should observe for your safety when working with the measuring sys DANGER DANGER indicates an imminently hazardous situation which if not avoided will result in death or ...

Страница 10: ...uthorized see chapter 9 TECHNICAL DATA Any other use is considered unauthorized 2 2 2 Requirements 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 energy sources mentioned in this operating manual The product may only be operated under the environmenta...

Страница 11: ...shaft and verify that the sensor is rated for your specific application DANGER Explosion hazard The associated apparatus MIQ BB1 YSI part no 207001Y has to be used for connection Refer to the following documents for proper installation Control drawing YSI document no 28123 see MIQ BB1 operating manual MIQ BB1 operating manual All applicable electrical code regulations DANGER Explosion hazard This ...

Страница 12: ...ctrode for compensation Special socket wrench VARiON 700 IQ SK protective hood Potassium chloride solution for storing the reference electrode Operating manual 3 2 Notes on the handling of the electrodes The electrodes of the VARiON Plus 700 IQ H sensor were developed for the rough use in waste water treatment plants They are however precision parts that can be damaged by inappropriate use 3 2 1 E...

Страница 13: ...tains 3 mol l potassium chloride solution Before mounting unscrew the watering cap Then using the special hexagon key unscrew the elec trode from the nut Keep both storing aids in case you want to store the electrode Notes on storage If you will not use the electrode for a longer period of time screw the electrode into the nut as far as it will go Fill the watering cap to the brim with 3 mol l pot...

Страница 14: ...o store the electrode Notes on storage If you will not use the electrode for a longer period of time screw the electrode into the nut as far as it will go Soak the foam insert in the watering cap with VARiON ES 1 standard solution lower concentra tion and plug the electrode into the watering cap The membrane of the electrode must not dry up follow notes on storage be damaged be brought into contac...

Страница 15: ...plugs NOTICE The sensor can be damaged by dirt and moisture Before mounting the electrodes make sure the area behind the sealing ring of the electrodes and the receptacle are dry and clean The VARiON Plus 700 IQ H may only be sub mersed when the electrodes or original blind plugs are mounted More detailed information on the electrode equipment for the various operating modes is given in chapter 1 ...

Страница 16: ...ith the special socket wrench Screw until the electrode is seated on the electrode support without any gap Thus the tightness and electrical contacting are granted 3 3 2 Mounting the protective hood CH cleaning head option For permanent operation we recommend to use the CH cleaning head for compressed air driven cleaning It is mounted instead of the stan dard protective hood The compressed air cle...

Страница 17: ...protective hood Cleaning the protective hood The coupling ring of the protective hood can be taken apart for cleaning purposes see section 6 2 EXTERIOR CLEANING 1 Loosen the coupling ring 1 of the protective hood 2 Push the protective hood on the sensor as far as it will go 3 Tighten the coupling ring of the protective hood 1 ...

Страница 18: ...be used in hazardous locations Verify the rating on the product name plate on the sensor shaft The associated apparatus MIQ BB1 YSI part no 207001Y has to be used for connection Refer to the following documents for proper installation Control drawing YSI document no 28123 see MIQ BB1 operating manual MIQ BB1 operating manual All applicable electrical code regulations DANGER Explosion hazard For ha...

Страница 19: ...e sensor and the SACIQ sensor connection cable and keep them safe 2 Plug the socket of the SACIQ sensor connection cable onto the plug head connector of the sensor At the same time rotate the socket so that the pin in the plug head connector 1 clicks into one of the two holes in the socket 3 Then screw the coupling ring 2 of the sensor connection cable onto the sensor up to the stop SACIQ 1 2 ...

Страница 20: ...ny one of the setting tables The setting is used by all sensors The sensor overlapping settings are Temperature mode C F Temp adjustment Carrying out 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 exact procedure is given in the relevant IQ SENSORNET system operating manual The setting table...

Страница 21: ...ge the instrument automatically switches to the suitable measuring range Measuring range Measuring mode mV 2000 2000 mV Fixed range If the sensor is not equipped with a potassium electrode Potassium compens Manual After determining the potassium content of the test solution enter the potassium content determined in the next line manually Potassium conc The measured value is accordingly corrected b...

Страница 22: ...t be acti vated If the setting VARiON K hide was additionally selected Calib history K Do not download Transmit to log book The selection of Transmit to log book gen erates a log book message with the cali bration history of the potassium electrode When opening the setting table again the setting is reset to Do not download Potassium compens Automatic When the potassium electrode is mounted the po...

Страница 23: ...least one hour while stirring occasionally Conc offset 1 0 mg l 1 0 mg l Constant value that is added to the mea sured value Save and quit The system confirms the saving of the set tings and the display switches to the next higher level Quit The display switches to the next higher level without storing the new settings Menu item Selection Values Explanations Menu item Selection Values Explanations...

Страница 24: ...ormation on the subject of chloride compensation is given in the primer ION SELECTIVE MEASUREMENT IN ONLINE ANALYSIS Chloride conc 0 1 1000 mg l Manual input of the chloride value If the sensor is equipped with a chloride electrode VARiON Cl hide show hide standard setting The chloride electrode is not displayed as an extra sensor in the measured value display show If the sensor is equipped with t...

Страница 25: ...emperature value Celsius Fahrenheit Temp adjustment only with Measuring mode NO3 N or NO3 1 5 C 1 5 C The temperature compensation function enables the temperature sensor to be balanced against a reference temperature measurement displacement of the zero point by 1 5 C Notes Due to the thermal capacity of the sen sor it is necessary to place it in a con tainer with at least 2 liters of water Leave...

Страница 26: ... C F Unit of the measured temperature value Celsius Fahrenheit Temp adjustment only with Measuring mode K mg l 1 5 C 1 5 C The temperature compensation function enables the temperature sensor to be balanced against a reference temperature measurement displacement of the zero point by 1 5 C Notes Due to the thermal capacity of the sen sor it is necessary to place it in a con tainer with at least 2 ...

Страница 27: ...ese sensor settings are only available if in the sensor settings for the VARiON N the setting VARiON Cl was set to Active see section 3 4 3 Menu item Selection Values Explanations Measuring mode Cl mg l mV Citation form of the mass concentration or voltage of the electrode Measuring range Measuring mode Cl mg l AutoRange 0 1 100 0 mg l 1 1000 mg l Fixed range Measuring range Measuring mode mV 2000...

Страница 28: ...liters of water Leave the sensor in this container for at least 15 minutes while stirring occa sionally then carry out the adjustment If the temperature difference of the water and sensor is 10 C leave the sensor in the container for at least one hour while stirring occasionally Conc offset 10 0 mg l 10 mg l Constant value that is added to the mea sured value Save and quit The system confirms the ...

Страница 29: ...d It serves to evaluate the long term behavior of the electrode The drift voltage changes due to the following factors Influences due to the sample composition matrix Changes of the electrode characteristic s Zeroing The temporal change of the drift voltage is recorded in the calibration history so the long term behavior of a electrode can be evaluated As a start value the user has to set the drif...

Страница 30: ... with detailed informa tion on the relevant operating step appears on the display It provides for example important instructions on how to keep the correct basic conditions When OK is pressed the display returns to the current operating step Matrix adjustment with zeroing After installing a new or different electrode you have to zero the elec trode to facilitate a long term evaluation Details on z...

Страница 31: ...ust be within the range 45 mV to 45 mV The drift voltage is set to 0 mV if you have selected a zeroing At the end of the matrix adjustment procedure the drift voltage of all selected electrodes is shown on the display The evaluation is indicated with a check mark successful or a minus sign not successful Taking over the determined values For each successfully adjusted electrode you can individuall...

Страница 32: ...he slope and potential level of the individual elec trodes via an exact calibration in standard solutions The slope will be retained with a future matrix adjustment if it is carried out without zeroing the electrode When does a check or calibration make sense A check or calibration can be useful in the following special cases If the measured values do not appear to be correct even after a care ful...

Страница 33: ...edure can however be used as a mere check method Calibration is doc umented in the calibration history and in the log book Standard solutions For the procedures CHECK or CALIBRATION the following standard solutions in the following order VARiON ES 2 high concentration VARiON ES 1 low concentration These standard solutions contain all ion types that come into question ammonium nitrate potassium chl...

Страница 34: ...During the conditioning steps all relevant elec trode voltages are indicated on the display Thus you can observe the conditioning process Regular stirring accelerates the conditioning process considerably Stirring with a stirring rod or the sensor itself is sufficient For calibration the standard solution is discarded after conditioning This is pointed out by a corresponding note in the calibratio...

Страница 35: ...e available in the Sensor history and in the calibration history The sensor history supplements and expands the calibration history The results of any checks are displayed All data of all electrodes of the sensor can be displayed in one list More datasets can be displayed for each electrode Sensor history 1 In the measured value display select the sensor with and use C to open the PROCEDURE SETTIN...

Страница 36: ...rix adjustment the values for the slope are marked by a star because they were not changed by this procedure DV Drift voltage mV After zeroing and subsequent calibration or matrix adjustment 0 is displayed Ref1 Ref2 Depending on the procedure Matrix adjustment Reference concentration mg l Calibration Standard solution used ES1 ES2 K Cl Depending on the procedure Matrix adjustment Interfering ions ...

Страница 37: ...ib history K in the setting table of the relevant main sensor The log book message is in the log book of the relevant main sensor VARiON A message code IC5395 VARiON N message code IC6396 If the compensation electrode is displayed as an extra sensor the calibration history of the compensation elec trode can be viewed in the sensor menu of this sensor Log book messages are displayed with the main s...

Страница 38: ...r Depending on the type of sample suitable protective measures must be taken protective clothing gog gles etc NOTICE Greases oils certain tensides and similar substances can shorten the operational lifetime of the electrodes Therefore they should not be present in the test sample see section 3 2 1 EFFECTS TO BE GENERALLY AVOIDED If necessary the CH Cleaning head can be used to keep the sensor clea...

Страница 39: ...ter 7 REPLACEMENT PARTS AND ACCESSORIES 6 2 Exterior cleaning With normal operation e g municipal wastewater we strongly recom mend to clean the outside of the sensor when it is strongly contaminated after visual check if erroneous measured values are suspected each time before removing or exchanging an electrode WARNING Chemical or biological hazard Contact with the sample can be harmful to the u...

Страница 40: ... of the sensor connec tion cable with the screwable SACIQ Plug when it is dry in order to protect the electrical contacts from corrosion The protective plug is available as an accessory see section 7 2 GENERAL ACCESSORIES Cleaning the sensor Clean the sensor shaft with tap water and a soft sponge or brush Remove the protective hood The electrodes are best cleaned under running tap water using a so...

Страница 41: ...d electrode exchange 41 ba76207e02 12 2020 After the parts have been cleaned reassemble the coupling ring in reverse order When doing so make sure that the tapered side of the intermediate ring pos 2 points towards the sealing ring pos 3 ...

Страница 42: ...ime before dismantling an electrode carefully clean the area around the electrodes section 6 2 Before mount ing an electrode make sure the area behind the sealing ring of the electrode and the receptacle are dry and clean The VARiON Plus 700 IQ H may only be sub mersed when the electrodes or original blind plugs are mounted Electrode Hexagon Front sur face Other features VARiON Plus Ref black blac...

Страница 43: ...emove the protective hood as necessary For polishing exclusively use the SF 300 polishing strip included in the scope of delivery of the chloride elec trode see chapter 7 REPLACEMENT PARTS AND ACCESSORIES Moisten the rough side of the polishing strip with water and polish off any coat ings under slight pressure Fig 6 2 Polishing the chloride electrode For the correct storage of the electrodes plea...

Страница 44: ...Plus NH4 107044 Nitrate electrode VARiON Plus NO3 107045 Potassium electrode VARiON Plus K 107046 Chloride electrode VARiON Plus Cl 107047 Description Model Order no 250 ml potassium chloride solution for storing the refer ence electrode KCl 250 109705 Description Model Order no 1 liter combination standard 1 low concentration VARiON ES 1 107050 1 liter combination standard 2 high concentration VA...

Страница 45: ...ipment for elec trodes 1 nut transparent 1 watering cap with sponge 1 nut black 1 watering cap without sponge for reference elec trode VARiON Epack 107057 Description Model Order no Cleaning head CH 900107 Passive valve module DIQ CHV 472007 Active valve module does not require a free relay output in the IQ SENSORNET system MIQ CHV PLUS 480018 Air compressor supplying the sensor cleaning system wi...

Страница 46: ...iew the calibration history of the electrodes In the following cases assessment is relatively easy If the drift voltages of all electrodes show the same trend i e the drift voltages have shifted in the same direction positive or nega tive by approximately the same amount this indicates that the potential level of the reference electrode has shifted The reference electrode is possibly highly contam...

Страница 47: ...the elec trode blind plug and thoroughly dry the electrode blind plug and receptacle Unknown Look for error messages in the log book Liquid in the sensor shaft Contact the service department Cause Remedy No matrix adjustment carried out Carry out matrix adjustment Error during matrix adjust ment e g incorrect labora tory values Check the conditions of the matrix adjustment Carry out new matrix adj...

Страница 48: ...n ized water using a wash bottle To do so position the opening of the wash bottle on the mem brane and splash against the membrane vigorously Measurement compensa tion electrode Air bubble behind the mem brane Hold the electrode in a vertical position with the membrane down and knock it on the side with the special socket wrench until the air bubble moves up Measurement electrode compensation and ...

Страница 49: ...on page 30 or in the online help Recalibrate Reference electrode or mea surement electrode defective due to aging see section 8 1 Replace defective electrode Cause Remedy Error during procedure e g contaminated standard solu tions Check the basic conditions Follow the practical notes on page 34 or in the online help Recalibrate Reference electrode or mea surement electrode defective due to aging s...

Страница 50: ...ment Measuring ranges and resolution Potassium measurement Main measured parameters Ammonium and or nitrate depending on the electrode equipment Secondary measured parameter Temperature Compensation parameters Potassium or chloride depending on the electrode equipment Measuring mode Measuring range Resolution NH4 N 0 1 100 0 mg l 1 2000 mg l 0 1 mg L 1 mg L NH4 0 1 129 0 mg l 1 2580 mg l 0 1 mg L ...

Страница 51: ...an be compensated for Ammonium Potassium K Nitrate Chloride Cl Compensation procedures Description Automatic up to 1000 mg l interfering ions when equipped with the corre sponding compensation elec trode Manual without compensation electrode by manual entry of the interfering ions concentration range 0 1 1000 mg l Note With the Link sensor to sensor function the IQ SENSORNET is able to provide a m...

Страница 52: ...ction cable connected IP 68 0 2 bar 2 x 104 Pa Immersion depth min 50 mm max 2 m depth Operating position Electrode support pointing downward maximum angle to the plumb line 60 Field of application Control monitoring in the aeration tank of a waste water treatment plant Water and waste water monitoring 9 3 General data Dimensions Weight without sensor connection cable approx 670 g with protective ...

Страница 53: ...cable Material Shaft V4A stainless steel 1 4571 Protective hood POM Electrode support POM Temperature sensor V4A stainless steel 1 4571 Plug head connector housing POM Plug 3 pole ETFE blue Tefzel Electrodes see section 9 6 NOTICE Stainless steel can be sensitive to corrosion with chloride concentrations from 500 mg l ...

Страница 54: ...Plus 700 IQ H is a non incendive electrical equipment for use in Class I Division 2 hazardous locations Hazardous location rating 9 5 Electrical data Applicable norms UL 61010 1 CAN CSA C22 2 61010 1 Class I Division 2 Groups A B C D T6 Class I Zone 2 Groups IIC T6 Associated apparatus MIQ BB1 YSI part no 207001Y Control Drawing YSI document no 28123 Nominal voltage Max 24VDC via the IQ SENSORNET ...

Страница 55: ...iON Plus Cl VARiON Plus Ref Electrodes Enclosure POM POM POM PVC PVC Clamping ring POM POM POM Membrane soft PVC with stainless steel protective grating soft PVC with stain less steel protec tive grating soft PVC with stainless steel protec tive grating ISE element solid body in epoxy Junction Porous PVDF Sealing ring FPM Viton FPM Viton FPM Viton FPM Viton FPM Viton Connection con tacts gold plat...

Страница 56: ... manual The last three digits of the message code identify the source of the message 521 VARiON 700IQ Armature component class adapters ADA 395 VARiON A Ammonium potassium electrode 396 VARiON N Nitrate chloride sensor 397 VARiON A Potassium electrode 398 VARiON N Nitrate sensor Message code Message text EA1395 Meas range exceeded or undercut Check process Select other meas range EA1396 Meas range...

Страница 57: ...ssium electrode IC6396 This message contains calibration data of the chloride electrode IC7395 IC7396 Sensor could not be calibrated Measuring with old calibration values Check calibration conditions and calibration standard View calibration history Service sensor immediately see operating manual ICA395ICA396 Electrode check successful ICB395 K electrode check successful ICC396 Cl electrode check ...

Страница 58: ...operating manual by an automated query from a superordinate process control e g when connected to the Profibus of the IQ Data Server see operating manual of the IQ SENSORNET software pack Status Info VARiON Plus 700 IQ H ICY395 VARiON A Data of the last matrix adjustmont or the last calibration ICZ396 VARiON N Data of the last matrix adjustmont or the last calibration Message code Message text 0 1...

Страница 59: ...n returning a product for service include the Product Return form with cleaning certification The form must be completely filled out for an YSI Service Center to accept the instrument for service The Product Return form may be downloaded at www ysi com and clicking on the Support tab Telephone 800 897 4151 937 767 7241 Monday through Friday 8 00 AM to 5 00 PM ET Fax 937 767 1058 Email info ysi com...

Страница 60: ...Contact Information VARiON Plus 700 IQ H 60 ba76207d02 12 2020 ...

Страница 61: ......

Страница 62: ...lyze and return water to the environment and we help people use water efficiently in their homes buildings factories and farms In more than 150 countries we have strong long standing relationships with customers who know us for our powerful combination of leading product brands and applications expertise backed by a legacy of innovation For more information on how Xylem can help you go to www xyle...

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