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AV422 Dissolved Organics Monitor
Brand: ABB GroupAV422 dual-channel high-level dissolved organics monitors act as surrogate color monitors on coagulation control applications to provide early warning of increase in organics from decay of algae blooms for potable water treatment works
Long term field trials have shown that maintenance demands on these applications are minimal.
Features- Dual input gives two measurements in one instrument, each input can be either high range or low range
- cost-effective
- Surrogate color measurement
- significant savings on operational costs through lower maintenance requirements
- Savings on alum or ferric are achieved on potable water treatment plants
- coagulation control cost saving
- Less alum, less sludge
- reduced sludge disposal costs
- THM (trihalomethanes) precursor alert
- provides advanced warning of increased risk of THM development
- Automatic compensation for turbidity
- reduces initial capital expenditure, minimizing operational costs
- Reagentless operation
- significant savings in operational expenditure
- On-line diagnostics
- cleaner failure, loss of signal, out of sample
Specifications
Brand
Range
- Sensor: 0 to 100 mgl–1 C
Linearity
- ±2% of reading or 0.5 mgl–1 C whichever is the greater
Reproductivity
- ±0.5 mgl–1 C
Flow Rate
- Sample: 0.5 to 5 l/min
Sample Temperature
- 0° to 40° C (32° to 104° F)
Sample Pressure
- 3 bar (43.5 psi) max.
Display
- Dual 41/2-digit, 7-segment backlit LCD
Resolution
- Output: 0.1% at 10 mA, 0.05 at 20 mA
- ±0.1 mgl–1 C
Accuracy
- ±0.25% FSD ±5% of reading
Output
- 0 to 10 mA, 0 to 20 mA or 4 to 20 mA
Power Supply
- Optional 12-30 Vdc
- 100-240 Vac, 50/60 Hz (90-264 V)
Power Consumption
- 20 W
Environmental Protection
- IP65
Cable Type
- N. American 7 x knockouts suitable for 1/2 in. Hubble gland
- Standard 5 or 7 x M20 cable glands
Operating Temperature
- 0° to 50° C (32° to 122° F)
Storage Temperature
- -25° to 75° C (–13° to 167° F)
Humidity
- Up to 95% RH non-condensing
Certifications & Approvals
- UL
- CE
- EMC
