D950 Waste Water Respirometry System is a single or multi-channel systems for automated respirometric measurements of activated sludge or waste water samples.

Fiber optic oxygen sensing technology with online temperature compensation and control, provides unbeaten temporal resolution and precision of data.

Particularly good for research, diagnostics or process optimization.

Oxygen optodes (sensors) are unaffected by stirring, pressure, CO2, H2S, ions, solutes etc. – no cross-sensitivity or poisoning.

User-friendly software and USB instrumentation for effortless operation, sensor calibration, data acquisition, calculations, graphs, analysis and statistics.

Applications:

• OUR (oxygen utilization rate)
• Short-term BOD (biological oxygen demand)
• Activated sludge analysis
• Waste water analysis
• Respiration inhibition
• Toxic effects of influents
• Laboratory respirometry
• Substrate/feed/nutrient effects
• Sludge monitoring
• Oxygen and temperature measurements and regulation

Included (single channel system):

• Data acquisition instrument for USB interface
• AutoResp™ software for Windows
• Fibox 3 fiber optic oxygen instrument for mini sensors
• Fiber optic oxygen mini sensor
• Water temperature monitoring and control system
• Oxygen analyzer and regulator system
• User manual

Optional:

• Customer specified chambers/reactors made in glass, stainless steel or plastic materials
• Multichannel temperature controllers for independent monitoring and regulation of samples
• Stirrers, hotplates, refrigerated baths

Specifications:

• Operational modes: cyclic or triggered by O2 set points (min/max)
• Data resolution: 16-bit (full optical insulation)
• Sampling frequency: 1 Hz (1-channel); 2 Hz (4-channel)
• Sensor response time: <20 sec (T90)
• Sensor accuracy: 1% air sat.
• Calibration: 2-point (sodium sulphite or N2, and air/O2)
• Files: txt and csv (Excel)
• PC interface: USB
• OS: WinXP/Vista/Win7
• Power: 110V/60Hz or 230V/50Hz