Catalog excerpts
Fluoride is widely added to drinking water systems to help prevent tooth decay. It is normally added in the form of liquid hydrofluorosalicic acid, which can be easily handled and applied using standard metering pumps. While the fluoridation process is often controlled by simple flow proportional feed, monitoring of final fluoride concentrations is useful in providing an alarm in the case of overfeed problems. Optimum fluoride levels of around 1 PPM are safe, but control system problems resulting in concentrations above 2 PPM are considered excessive and need to be detected as early as...
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Typical Installation
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Suffix C - Enclosure 1 - Panel Mount 2 - NEMA 4X Wall Mount Suffix D - Power 1 - 120 VAC, 60 Hz. 2 - 220 VAC, 50 Hz. 09-0028 Buffer, 1 gallon 63-0057 Spare fluoride electrode Note: Unit supplied with sample inlet overflow, 500 cc. of 100 PPM fluoride standard, and 1 gallon of buffer. Represented By: Ordering Information: Model A15/82 - C - D Monitor Accessories Electronic Monitor Range: 0-1.00 PPM minimum, 0-1000 PPM maximum Accuracy: ± 5% of span Repeatability: ± 2% of span Drift: < 0.1 PPM per month Display: 16 character alphanumeric backlit LCD Control Relays: Two SPDT relays, 5A @ 220...
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