Wastewater treatment processes are concerned with controlling the energy efficient removal of pollutants in the smallest possible space in the shortest possible time.
As oxygen is required for nitrification sub-processes, but prevents denitrification, this process parameter is determined online and traced. It is often used for controlling the oxygen input or aerator aggregates.
The new highly variable ionic sensor VARiON®Plus allows:
•The continuous measurement of ammonium – with online compensation of potassium ion interference by using potassium ISE.
•Measurement ammonium and nitrate using one sensor with perfect gradient display.
Redox inflexion point determination has become less significant as an indirect controlled and actuation variable due to the generally known difficulty (i.e. unclear curve progression). Direct measuring procedures for the process measuring ammonium and nitrate are far more interesting. The immediately available parameters allow the control to be directly optimised. This guarantees efficient wastewater purifications. This results in reduced energy costs.
•In-situ combination sensor for ammonium and nitrate
•2 compensated parameters simultaneous
•Economic, cost-effective
•Calibration-free, long time stable
The dynamics of the controllable process and the used measuring system are of great importance for the measuring and control technology. Here applies: the faster the control process and disturbance variables, the shorter recognition times are expected from the measuring system.
SPECIFICATIONS
Ammonium Measurement
Reference Electrode: VARiON®Plus Ref
Measuring Electrode: VARiON®Plus NH4
Compensation Electrode: VARiON®Plus K
NH4-N:
1 to 1000 mg/l / 1 mg/l;
0.1 to 100 mg/l / 0.1 mg/l
NH4+:
1 to 1290 mg/l / 1 mg/l;
Compensation Ranges
0.1 to 129.0 mg/l / 0.1 mg/l
K+: 1 to1.000 mg/l / 1 mg/l
Nitrate Measurement
Reference Electrode: VARiON®Plus Ref
Measuring Electrode: VARiON®Plus NO3 or VARiON®Plus NO3-HS
Compensation Electrode: VARiON®Plus Cl
NO3-N:
1 to 1.000 mg/l / 1 mg/l;
0.1 to 100 mg/l / 0.1 mg/l
NO3-:
5 to 4500 mg/l / 1 mg/l;
Compensation Ranges
0.5 to 450.0 mg/l / 0.1 mg/l
Cl-: 1 to 1.000 mg/l / 1 mg/l
Integrated NTC Thermistor
Range: 0 °C to +40 °C,
Accuracy: ±0,5 K,
Resolution: 0.1 K, t95 < 20 s
Ordering Information:
VARiON®Plus sets and standard solutions
VARiON®Plus A comp SET NH4
107 060 Robust digital probe for ion-selective measurement of ammonium and nitrate (in-situ) for use with the IQ SENSOR NET system. Supplied with: Probe VARiON®Plus 700 IQ, reference electrode VARiON® Ref, ammonium electrode VARiON®Plus NH4 and compensation electrode VARiON®Plus K (potassium). Please order SACIQ cable separately.
VARiON®Plus N comp SET NO3
107 062 Robust digital probe for ion-selective measurement of ammonium and nitrate (in-situ) for use with the IQ SENSOR NET system. Supplied with: Probe VARiON®Plus 700 IQ, reference electrode VARiON® Ref, nitrate electrode VARiON®Plus NO3 and compensation electrode VARiON®Plus Cl (chloride). Please order SACIQ cable separately.
VARiON®Plus AN/A comp SET NH4 & NO3 Double sensor
107 066 Robust digital probe for ion-selective measurement of ammonium and nitrate (in-situ) for use with the IQ SENSOR NET system. Supplied with: Probe VARiON®Plus 700 IQ, reference electrode VARiON® Ref, measuring electrodes VARiON®Plus NH4 and VARiON®Plus NO3, compensation electrode VARiON®Plus K (potassium). Please order SACIQ separately.
VARiON®Plus AN/N comp SET NH4 & NO3 Double sensor
107 068 Robust digital probe for ion-selective measurement of ammonium and nitrate (in-situ) for use with the IQ SENSOR NET system. Supplied with: Probe VARiON®Plus 700 IQ, reference electrode VARiON® Ref, measuring electrodes VARiON®Plus NH4 and VARiON®Plus NO3, compensation electrode VARiON®Plus Cl (chloride). Please order SACIQ separately.
VARiON®Plus separate deliveries
107 040 VARiON®Plus 700 IQ Robust digital probe for the ion-selective measurement (in-situ) of ammonium and nitrate, for use with the IQ SENSOR NET system. Supplied with: Probe VARiON®Plus 700 IQ with 4 blind plugs, protective device and calibration vessel. Please order electrodes and SACIQ connection cable separately.
107 042 VARiON® Ref Reference electrode for mounting into VARiON®Plus 700 IQ, NitraLyt® Plus, AmmoLyt® Plus probe
107 044 VARiON®Plus NH4 Ammonium electrode for VARiON®Plus 700 IQ and for AmmoLyt® Plus/ AmmoLyt®, measuring range: 0.1 – 1000 mg/l NH4-N
107 045 VARiON®Plus NO3 Nitrate electrode for VARiON®Plus 700 IQ and for NitraLyt® Plus / NitraLyt®, measuring range: 0.1 – 1000 mg/l NO3-N
107 046 VARiON®Plus K Potassium electrode for VARiON®Plus 700 IQ and for AmmoLyt® Plus, measuring range: 1 – 1000 mg/l K+
107 047 VARiON®Plus Cl Chloride electrode for VARiON®Plus 700 IQ and for NitraLyt® Plus, measuring range: 1-1000 mg/l Cl
107 056 VARiON® 700 IQ-SK Protection device for ISE electrodes, mountable on VARiON®Plus 700 IQ/ AmmoLyt®Plus 700 IQ/NitraLyt®Plus 700 IQ
Standards
107 050 VARiON®/ES-1 Multiple standard solution 1 (low concentration); Volume: 1000 ml
107 052 VARiON®/ES-2 Multiple standard solution 2 (high concentration); Volume: 1000 ml
107 057 VARiON®/Epack Spare part set for VARiON®Plus 700 IQ. Consisting of 1 special box spanner for mounting and dismounting of electrodes, 1 blind plug, 3 spare O-ring seals for electrodes and 1 vessel for wet storage of electrodes.
107 058 VARiON® Case Maintenance and calibration case for VARiON®Plus 700 IQ. With special foam inlay for secure storing of the VARiON®Plus 700 IQ, wet storage of the electrodes, transport of the calibration vessel, standard solutions and additional small parts.
varion700iq