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Q45D Dissolved Oxygen Transmitter
Brand: Analytical Technology IncDissolved Oxygen Monitoring applications requiring a simple 2-wire transmitter or battery-operated instrument are easily satisfied using ATI’s model Q45D transmitter.
Adaptable to either Optical or Galvanic D.O. sensors, this unit is ideal for installations where only analog signals are needed and low power operation is preferred.
For applications requiring AC operation, relay outputs, automatic sensor cleaning, or digital communication, refer to ATI’s model Q46D brochure.
ATI’s optical element is designed to last a minimum of 2-years in normal operation, but will more often provide a life of 3-5 years, unless mechanical damage occurs.
Optical sensors do not require flow across the sensing element so accurate measurements can be made more accurately in systems with low flows.
Unlike some optical sensors, this sensor is not degraded by exposure to sunlight.
Features- Loop-powered or battery-operated
- External 5-17 VDC version for solar power applications
- Adapts to Optical or Galvanic sensors
- Submersion or flowcell sensor options
- Simple air-calibration
- Large, easy-to-read LCD display
- Display D.O. in ppm, mg/l, or % saturation
- Clear menu-driven user interface
- NEMA 4X (IP-66) enclosure
- Wall or pipe mounting bracket
- Built-in PID controller
Specifications
Display Range
- 0-40.00 ppm or 0-40.00 mg/L
- 0-200.0 Percent saturation
Accuracy
- Greater of 0.3 % of value or 0.02 ppm
Repeatability
- 0.02 ppm
Sensitivity
- 0.01 ppm
Linearity
- 0.1%
Temperature Drift
- 0.1 %/°C
Sensor Type
- Optical or Galvanic membraned
Temperature Input
- Pt100 RTD in Sensor for Temperature Compensation
Power
- 2-Wire unit: 17-30 Vdc, 25 mA Max.
- Battery unit: Two AA Alkaline batteries
- External DC: 5-17 Vdc, 10 mA Max.
Analog Outputs
- 2-Wire unit: Single 4-20 mA DC, 450 ohms Max.
- Battery unit: Two 0-2.5 Vdc, 50K ohms minimum
- External DC: Two 0-2.5 Vdc, 50K ohms minimum
Output Isolation
- 600 V Galvanic Isolation
Enclosure
- NEMA 4X (IP-66) Polycarbonate, V-0 Flammability
Mounting Options
- Wall or Pipe Mounting Bracket Supplied
Conduit Entries
- Two PG-9 Cord Grips, 0.16-0.31” Diameter Cable
Ambient Temperature
- Operating: -40° to + 60° C
- Storage: -40° to + 70° C
Ambient Humidity
- 0-95 %, Non-Condensing
Size
- 4.4”H x 4.4”W x 3.5”D (111 x 111 x 90 mm)
Weight
- 2-Wire or External DC unit: 1 lb (0.45 Kg)
- Battery unit: 2 lbs (0.9 Kg)
Certifications
- CE marked to BS EN 61326-1:2006 Standard
- UL and CSA General Purpose
- Aeration Systems
- Fish Farming
- Wastewater Effluent
- Rivers & Streams
- Water Distribution