OPUS: UV sensor for the measurement of nitrogen and carbon

OPUS: UV sensor for the measurement of nitrogen and carbon

OPUS sensor for continuous measurement of nitrogen and carbon compounds in water. By analysing a full spectrum, the sensor provides readings for NO3-N, NO2-N and organic parameters such as CODeq, BODeq, DOCeq and TOCeq, with simple configuration via TriOS G2 interface.
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Measurement technology light source:

  • Xenon flash lamp

detector:

  • High-end miniature spectrometer
  • 256 Channels
  • 200 to 360 nm
  • 0.8 nm/pixel
Measurement principle Attenuation, spectral analysis
Optical path 0.3 mm, 1 mm, 2 mm, 5 mm, 10 mm, 50 mm
Parameter See parameter list p. 3
Measuring range See parameter list p. 3
Measurement accuracy See parameter list p. 3
Turbidity compensation Yes
Data logger ~ 2 GB
T100 response time 2 min
Measurement interval ≥ 1 min
Housing material Stainless steel (1.4571/1.4404) or titanium (3.7035)
Dimensions (L x Ø) 470 mm x 48 mm (with 10 mm path) ~ 18.5“ x 1.9“ (with 10 mm path)
Weight stainless steel: ~ 3 kg (with 10 mm path)titanium: ~ 2 kg (with 10 mm path) ~ 6.6 lbs (with 10 mm path)~ 4.4 lbs (with 10 mm path)
Interface digital:

  • Ethernet (TCP/IP)
  • RS-232 or RS-485 (Modbus RTU)
Power consumption ≤ 8 W
Power supply 12…24 VDC (± 10 %)
Maintenance effort ≤ 0.5 h/month (typical)
Calibration/maintenance interval 24 months
System compatibility Modbus RTU
Warranty 1 year (EU: 2 years) US: 2 years
Installation
Max. pressure with SubConn: 30 bar ~ 435 psig
with fixed cable: 3 bar ~ 43.5 psig
in FlowCell: 1 bar, 2…4 L/min ~ 14.5 psig at 0.5 to 1 gpm
Protection type
  • IP68
  • NEMA 6P
Sample temperature
  • +2…+40 °C
  • ~ +36 °F to +104 °F
Ambient temperature
  • +2…+40 °C
  • ~ +36 °F to +104 °F
Storage temperature
  • -20…+80 °C
  • ~ -4 °F to +176 °F
Inflow velocity
  • 0.1…10 m/s
  • ~ 0.33 fps to 33 fps
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