Online Instrumentation - WTW.com
Online Instrumentation - WTW.com
Online Instrumentation - WTW.com
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<strong>WTW</strong> Measuring Systems for Nitrogen<br />
● re<strong>com</strong>mended by <strong>WTW</strong> suitable ❍ conditionally applicable *Measurement in aeration basin<br />
Ammonium Ammonium and<br />
Nitrate Nitrate and Nitrite<br />
Nitrate<br />
NEW<br />
System<br />
IQ SenSor net TresCon ® IQ SenSor net IQ SenSor net TresCon ® IQ SenSor net<br />
Sensor/Module AmmoLyt ® Plus 700 IQ Module OA 110 VARiON ® Plus 700 IQ NitraLyt ® Plus 700 IQ Module ON 210/OS 210 NitraVis ® 700 IQ (NI)<br />
For information visit www.<strong>WTW</strong>.<strong>com</strong> for a customer care center near you<br />
Methods<br />
for mounting in TresCon ® system for mounting in TresCon ® system<br />
Measured Variable NH4 NH4 NH4 and NO3 NO3 NOX NO2 and NO3 Inlet (determination<br />
❍ ❍ ●<br />
of load)<br />
Aeration (regula-<br />
● ● ● ● ● ●<br />
tion and control)<br />
Effluent<br />
❍ ● ❍ ❍ ● ●<br />
(monitoring)<br />
Autom. Cleaning <strong>com</strong>pressed air cleaning solution <strong>com</strong>pressed air <strong>com</strong>pressed air cleaning solution Ultrasonic (<strong>com</strong>pressed air)<br />
Cleaning Cycles variable automatic 6/12/24 h variable variable automatic 6/12/24 h prior to each measurement<br />
Measuring in-situ after sample preparation* in-situ in-situ after sample preparation* in-situ<br />
Sample Preparation none PurCon ®/PurCon ® Insitu* none none PurCon ®/PurCon ® Insitu* none<br />
Measuring Interval continuous adjustable continuous continuous adjustable adjustable<br />
Response Time quick medium quick quick medium quick<br />
Measuring Method ISE (ion-selective) gas-sensitive ISE (ion-selective) ISE (ion-selective) photometric UV-VIS and UV spectrometric<br />
Accuracy good high good good high high<br />
Cross Sensitivity yes/potassium,<br />
none yes, automatic<br />
yes/chloride,<br />
low autom. <strong>com</strong>pensated<br />
<strong>com</strong>pensation<br />
<strong>com</strong>pensation<br />
<strong>com</strong>pensation<br />
(spectrum)<br />
Calibration factory calibration automatic 6/12/24 h factory calibration factory calibration automatic 6/12/24 h not necessary<br />
Investment Costs low medium low low medium medium<br />
Additional Costs — sample preparation/pump — — sample preparation/pump —<br />
may be required<br />
may be required<br />
Operational Costs low medium low low low none<br />
Consumables electrodes calibration standard/reagent electrodes electrodes calibration standard none<br />
cleaning solution/E pack<br />
cleaning solution/E pack<br />
Parameter<br />
section<br />
Conductivity pH/ORP Dissolved<br />
Oxygen<br />
Nitrogen Turbidity/<br />
Suspended Solids<br />
Sludge level Phosphate Carbon: COD/TOC/<br />
DOC/BOD/SAC<br />
43
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