Q46D Dissolved Oxygen Monitor

Provide accurate, reliable oxygen measurement and help reduce operating costs

9 ₫

Dissolved Oxygen Monitoring is critical to stable operation of biological processes in wastewater treatment plants.

Key benefits

Q-Blast AutoClean
Optical and galvanic options
All digital communications

Applications

Biological processes in wastewater treatment plants
Better results with fine bubble aeration, coarse bubble aeration, surface aeration or brush aerators
Ideal for control applications where reliable performance is required 365 days a year

Category: Uncategorized

Dissolved Oxygen water quality monitoring is critical for aeration system process control. Optimization of the biological process, whether it’s removal of organic material, nitrification, or nitrification/denitrification, depends on maintaining proper D.O. levels. Controlling air flow to within the optimal range eliminates excess aeration, which translates into significant energy savings.

ATi’s Q46D Dissolved Oxygen Monitor is designed to provide reliable oxygen measurement and help reduce operating costs. Two types of sensing technologies are available for use with the Q46D system: Membraned Electrochemical and Optical (fluorescence). Both sensors will provide reliable long-term performance with minimal maintenance. No hardware modifications are required to change from one sensor type to the other. The monitor can be configured for AC or DC power supplies, and a portable battery-powered unit is available to meet a variety of monitoring needs. When process conditions require frequent sensor cleaning, our unique Q-Blast Auto-Cleaner can be used to keep the system operating nearly maintenance free. This time-proven system has been instrumental in providing years of worry free operation.

Features & specification

Optical or galvanic membraned sensor options
Auto-Clean ‘Air Blast’ sensor cleaning system available
Automatic calibration check
AC or DC Power Options
3 Analog Output Option
PID Output
Profibus-DP, Modus-RTU or Ethernet-IP Digital Communications Available
6 Relay contact options
Flexible mounting options
Large, back-lit LCD display

Display Range	0 – 40.00 PPM (or mg/L); 0-200% saturation
Accuracy	0.5% of selected range or 0.02 PPM
Repeatability	0.3% of selected range or 0.01 PPM
Non-Linearity	0.1% of selected range
Temperature Drift	0.01% of span/°C
Power	90-260 VAC, 50/60 Hz, 10VA max.; 12-24 VDC, 500 mA max.
Analog Outputs	Two isolated 4-20 mA, 500Ω load max. (3rd output optional)
Relays	Three SPDT, 6A @250 VAC, 5A @24VDC
Display	4 digit, 0.75” numeric LCD with 12 character second line
Enclosure	NEMA 4X (IP-66) Polycarbonate, V-0 flammability
Operating Temperature	-20 to 60°C (-4 to 140°F)
Weight	4 lbs. (1.8 kg); Auto-Clean version: 18 lbs (8.1 kg)
Sensor Options	Optical Fluorescence Quenching or Membrane-Covered Galvanic (flow type or submersible)

Note:

All systems with membraned sensors are supplied with one package of membranes, one 120 cc bottle of electrolyte, and one spare parts kit.
Pipe mount requires two 2” U-bolts (47-0005).
When Auto-Clean option is selected, you must also select option 3 in Suffix E.

OPTICAL SENSOR SPECIFICATIONS
Range	0-40 PPM
Wetted Materials	PVC
Optical Element Replacement	Replacement Disk, 2-5 year life
Cable Length	30 ft (9.2 m) standard, up to 200 ft (61 m) with junction box
Response Time	90% in 3 minutes
Operating Temp.	-5 to 50°C
Size	2.4” D x 5.5” L (6.1 x 14 cm)
Weight	2 lbs (0.9 kg)

GALVANIC SENSOR SPECIFICATIONS
Range	0-40 PPM
Wetted Materials	Noryl, PVC, & 316SS
Membrane/Response	5 mil – 90% in 3 minutes (standard)
	2 mil – 90% in 1 minute (optional)
Cable Length	30 ft (9.2 m) standard, up to 1000 ft (307 m) with junction box
Operating Temp.	-5 to 50°C
Size (Auto-Clean)	2.4” D x 5.5” L (6.1 x 14 cm)
Weight	2 lbs (0.9 kg)
Size (Standard)	1.8” D x 6” L (4.6 x 15.2 cm)

ACCESSORIES
00-0628	Submersion mounting bracket kit for standard sensors
00-0629	Mounting kit for Auto-Clean sensor with rag shedder
07-0100	Junction Box, NEMA 4X
31-0038	7-conductor optical sensor cable, 300 ft max.
31-0001	5-conductor sensor interconnect cable (max. 1000 ft)
00-0624	Mounting bracket kit for Auto-Clean sensor
45-0043	Pipe adapter for Auto-Clean sensor
05-0094	Panel mount bracket kit
47-0005	2” U-bolt, 304SS
00-1637	Q-Blast Assembly with Power J-Box and Mounting Rails
00-0625	1-½” flow tee assembly
00-0043	Constant-head flowcell
00-1522	Sealed flowcell

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Features & specification