Digital ISE combination sensor for ammonium and nitrate
Ion selective measurement of ammonium and nitrate free of reagents with automatic compensation of potassium/chloride with the VARiON® Plus 700 IQ
- Ammonium and nitrate measurement directly in the process
- Simultaneous compensation of potassium, chloride
- No sampling, reagent-free
- Calibration free, long-term stability
These especially stable electrodes ensure long operation times and a simple cleaning method. To measure, simply install the respective electrode into the IQ Sensor Net, everything else will take place automatically. In the measured value display, the values that have already been compensated, are displayed, you can select potassium or chloride output. These values also stand for the signal output per 0/4-20 mA output or digital output (Profibus, Modbus RTU, Ethernet/IP, Modbus TCP) is directly available.
New: Measurement of media with high ammonium load
When thickening or dehydrating wastewater treatment sludge, the so-called centrate water is generated. This water has an especially high amonium content. The centrate water is not drained but rerouted into the wastewater circuit of the system or directly broken down into elementary nitrogen (deammonification). In both cases, the determination of the NH4 freight is very important for an optimal process run. High NH4 concentrations of up to 2000 mg/l can now be determined directly in the medium by means of the Varion®Plus 700 IQ, in centrate water as well as in process waters!
Variations
| Model | Description | Order no. |
|---|---|---|
| Please order the sensor cable SACIQ separately | ||
| VARiON®Plus 700 IQ | Digital sensor for the ion selective measurement of ammonium and nitrate, without electrodes | 107040 |
| VARiON®Plus A comp SET NH4 | VARiON®Plus 700 IQ, reference electrode VARiON® Ref, ammonium measuring electrode VARiON®Plus NH4 and compensation electrode VARiON®Plus K (potassium) | 107060 |
| VARiON®Plus N comp SET NO3 | VARiON®Plus 700 IQ, VARiON® Ref, VARiON®Plus NO3 and VARiON®Plus Cl (chloride) | 107062 |
| VARiON®Plus AN/A comp SET NH4 & NO3 | VARiON®Plus 700 IQ, VARiON®Ref, VARiON®Plus NH4 and VARiON®Plus NO3, VARiON®Plus K (potassium) | 107066 |
| VARiON®Plus AN/N comp SET NH4 & NO3 | VARiON®Plus 700 IQ, VARiON®Ref, VARiON®Plus NH4 and VARiON®Plus NO3, VARiON®PlusCl (chloride) | 107068 |
Technical Data
| Ammonium measurement | ||
| Integratable measuring chains | Reference Measuring electrode Compensation |
VARiON®Plus Ref VARiON®Plus NH4 VARiON®Plus K |
| Measuring ranges / resolution | NH4-N NH4+ |
1 ... 2.000 mg/l / 1 mg/l; 0.1 ... 100 mg/l / 0.1 mg/l 1 ... 2,580 mg/l / 1 mg/l; 0.1 ... 129.0 mg/l / 0.1 mg/l |
| Compensation ranges | K+ | 1 ...1.000 mg/l / 1 mg/l |
| Nitrate measurement | ||
| Integratable measuring chains | Reference Measuring electrode Compensation |
VARiON®Plus Ref VARiON®Plus NO3 VARiON®Plus Cl |
| Measuring ranges / resolution | NO3-N NO3- |
1 … 1.000 mg/l / 1 mg/l; 0.1 ... 100 mg/l / 0.1 mg/l 5 … 4.500 mg/l / 1 mg/l; 0.5 ... 450.0 mg/l / 0.1 mg/l |
| Compensation ranges | CI- | 1 ...1.000 mg/l / 1 mg/l |
| Temperature measurements and compensation | integrated NTC Area Accuracy Resolution |
0 °C … +40 °C ±0.5 K 0.1 K, t95 < 20 s |
Accessories
| Model | Description | Order no. |
|---|---|---|
| VARiON® Ref | Reference electrode | 107042 |
| VARiON®Plus NH4 | Ammonium electrode | 107044 |
| VARiON®Plus NO3 | Nitrate electrode | 107045 |
| VARiON®Plus K | Potassium electrode | 107046 |
| VARiON®Plus Cl | Chloride electrode | 107047 |
| VARiON®/ES-1 | Combination standard 1 (low concentration), 1000 ml | 107050 |
| VARiON®/ES-2 | Combination standard 2 (high concentration), 1000 ml | 107052 |
| VARiON® 700 IQ-SK | protective basket for ISE electrodes | 107056 |
| VARiON®/Epack | Spare parts set: 1 special socket wrench, 1 blind plug, 3 replacement gaskets for electrodes and 1 storage container for the moist storage of the electrodes | 107057 |
| DIQ/CHV | Dual IQ/Cleaning Head Valve for system 282/284 | 472007 |
| MIQ/CHV PLUS | Module IQ/Cleaning Head for system 2020 | 480018 |
| Cleaning Air Box - 115 VAC | Air pressure compressor, 115 VAC | 480017 |
| Cleaning Air Box - 230 VAC | Air pressure compressor, 230 VAC | 480019 |
| CH | Cleaning head | 900107 |
