Catalog excerpts
Odor control in wastewater treatment plants and sewage collection systems often requires the use of scrubber systems. Many of these scrubbers employ a wet process using hypochlorite solution to remove H2S from air streams prior to discharge. Monitoring the hydrogen sulfide in both inlet and discharge air has presented problems for standard sulfide gas sensors. ATI has developed sensor technology that now allows continuous monitoring in this type of application, where condensing humidity conditions are normal. Designated Model Q45S, the odor monitoring system uses our standard Q45...
Open the catalog to page 2Vent Sampling Line 1-1/2" NPT Threads Air cleaning nozzle must be pointing in the direction of the flow to function properly. Pipe Adapter (Customer Supplied) Features • Special Wet H2S Sensors: System utilizes a special sensor designed to operate in condensing gas streams without the water vapor blinding typical of standard sulfide sensors. • Automatic Sensor Air Purge: An automatic system for purging accumulated droplet water from the face of the sensor insures long-term operation without loss of sulfides in condensed water on the sensor face. • Two Internal Alarm Relays: Q45S monitors...
Open the catalog to page 3Hydrogen Sulfide Sensor Type: Special wet gas sensor design Response Time: Generally ±10% of value, but limited by available calibration gas Zero Stability: Electronic Linearity: Span Drift: Dependent on operating environment but generally less than 3% per month Analog Output: Isolated 4-20 mA, 575 ohms maximum 115 or 230 VAC, 50/60 Hz., 5 VA max. Optional: 9 VDC battery-powered with data logger Alarm Relays: Relay Coil: Programmable either normally energized or normally de-energized Nema 4X Polycarbonate, Wall, pipe, or panel mounted 4 membrane switches on front of monitor. Operating...
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