NX7500 Multi-parameter Applications
• Wastewater
scanning UV probe
One step ahead of rising nitrite concentrations
Hach®’s NX7500 scanning UV probe provides you with a high level of confidence in your process by
alerting you to high nitrite concentrations before your process is affected.
Improved control of your process Low maintenance
Continuous monitoring of nitrite gives you an accurate and The measuring method does not require any reagents or
complete picture of your process, allowing you to make rapid sample preparation. With the probe submerged in the water,
and data-driven decisions. With short measurement intervals the nano-coated measuring windows are automatically
along a full UV spectrum, you’ll get more results faster - keeping cleaned to prevent fouling of the optical path that can diminish
you one step ahead of rising nitrite concentrations negatively accuracy.
impacting your process.
Easy operation and expert support
Thanks to factory pre-calibration, you will gain a full UV
spectrum view of your water quality from day one with easy
setup. Plus, Hach experts are standing by to support you any
time.
2 NX7500 Multi-parameter scanning UV probe
Technical Data*
Parameter Nitrate NO₃-N, Nitrite NO2-N, CODeq, BODeq, DOCeq, TOCeq
Application Wastewater inlet/aeration and outlet
Path length 0.3/1/2/5/10/50 mm
Parameter NO₃-N NO2-N CODeq, BODeq DOCeq, TOCeq
Path length 0.3 mm 1 - 330 mg/L 1.7 - 500 mg/L 100 - 7300 mg/L 17 - 3300 mg/L
Path length 1 mm 0.3 - 100 mg/L 0.5 - 150 mg/L 30 - 2200 mg/L 5 - 1000 mg/L
Path length 2 mm 0.15 - 50 mg/L 0.25 - 75 mg/L 15 - 1100 mg/L 2.5 - 500 mg/L
Measuring range
Path length 5 mm 0.06 - 20 mg/L 0.1 - 30 mg/L 6 - 440 mg/L 1 - 200 mg/L
Path length 10 mm 0.03 - 10 mg/L 0.05 - 15 mg/L 3 - 220 mg/L 0.5 - 100 mg/L
Path length 50 mm 0.006 - 2 mg/L 0.01 - 3 mg/L 0.6 - 44 mg/L 0.1 - 20 mg/L
Path length 0.3 mm 1 mg/L 1.7 mg/L 100 mg/L 17 mg/L
Path length 1 mm 0.3 mg/L 0.5 mg/L 30 mg/L 5 mg/L
Path length 2 mm 0.15 mg/L 0.25 mg/L 15 mg/L 2.5 mg/L
Detection limit Path length 5 mm 0.06 mg/L 0.1 mg/L 6 mg/L 1 mg/L
Path length 10 mm 0.03 mg/L 0.05 mg/L 3 mg/L 0.5 mg/L
Path length 50 mm 0.006 mg/L 0.01 mg/L 0.6 mg/L 0.1 mg/L
Detection limit specifications refer to standard reference solutions under lab conditions.
Controller compatibility CD300, CD500
Measuring interval ≥ 1 min
Measuring principle UV absorption measurement: 200 - 360 nm (0.8 nm/pixel)
Operating temperature range 2 - 40 °C
Sample temperature 2 - 40 °C
Storage conditions -20 - 80 °C
Pressure range Max. 3 bar (in the flow cell max. 1 bar)
Flow rate 0.1 - 10 m/s
Stainless steel: 3 kg
Weight
Titanium: 2 kg
Diameter 48.3 mm
Length 470 mm (0.3/1/2/5/10 mm path length) or 510 mm (50 mm path length)
Material Sensor enclosure: Stainless steel 1.4571/1.4404 or Titanium
Light source Xenon flash lamp
Cable length 10 m fixed cable with M12 plug
Interface Ethernet (TCP/IP), RS232 or RS485 (Modbus RTU, ASCII)
Power requirements (Voltage) 12 - 24 V DC (±10%)
Power consumption <8W
Certifications CE
*Subject to change without notice.
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NX7500 Multi-parameter scanning UV probe 3
Principle of Operation
The probe uses a xenon flash lamp as a broadband light source. The light goes through the optical path in the medium, and the medium
absorbs some light. The spectrometer records the remaining, spectrally resolved light and determines the intensity at different wavelengths
in a wavelength range.
Dimensions
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4 NX7500 Multi-parameter scanning UV probe
Order Information
Probes
LXV529.99.11xxx NX7500 Multi-parameter scanning UV probe, 0.3 mm path length, stainless steel or titanium
LXV529.99.21xxx NX7500 Multi-parameter scanning UV probe, 1 mm path length, stainless steel or titanium
LXV529.99.31xxx NX7500 Multi-parameter scanning UV probe, 2 mm path length, stainless steel or titanium
LXV529.99.41xxx NX7500 Multi-parameter scanning UV probe, 5 mm path length, stainless steel or titanium
LXV529.99.51xxx NX7500 Multi-parameter scanning UV probe, 10 mm path length, stainless steel or titanium
LXV529.99.61xxx NX7500 Multi-parameter scanning UV probe, 50 mm path length, stainless steel or titanium
Software Packages
LXZ529.99.M0001 NX7500 Calibration Software Wastewater Inlet/Aeration, CODeq
LXZ529.99.M0002 NX7500 Calibration Software Wastewater Inlet/Aeration, CODeq, BODeq
LXZ529.99.M0003 NX7500 Calibration Software Wastewater Inlet/Aeration, CODeq, TOCeq
LXZ529.99.M0004 NX7500 Calibration Software Wastewater Inlet/Aeration, NO₃-N
LXZ529.99.M0005 NX7500 Calibration Software Wastewater Inlet/Aeration, NO₃-N, CODeq
LXZ529.99.M0006 NX7500 Calibration Software Wastewater Inlet/Aeration, NO₃-N, CODeq, BODeq
LXZ529.99.M0007 NX7500 Calibration Software Wastewater Inlet/Aeration, NO₃-N, NO2-N
LXZ529.99.M0008 NX7500 Calibration Software Wastewater Inlet/Aeration, NO₃-N, NO2-N, CODeq
LXZ529.99.M0009 NX7500 Calibration Software Wastewater Inlet/Aeration, NO₃-N, NO2-N, CODeq, BODeq
LXZ529.99.M0010 NX7500 Calibration Software Wastewater Inlet/Aeration, NO₃-N, NO2-N, CODeq, TOCeq
LXZ529.99.M0011 NX7500 Calibration Software Wastewater Outlet, CODeq
LXZ529.99.M0012 NX7500 Calibration Software Wastewater Outlet, CODeq, BODeq
LXZ529.99.M0013 NX7500 Calibration Software Wastewater Outlet, CODeq, TOCeq
LXZ529.99.M0014 NX7500 Calibration Software Wastewater Outlet, CODeq, TOCeq, BODeq
LXZ529.99.M0015 NX7500 Calibration Software Wastewater Outlet, CODeq, DOCeq, TOCeq, BODeq
LXZ529.99.M0016 NX7500 Calibration Software Wastewater Outlet, NO₃-N
LXZ529.99.M0017 NX7500 Calibration Software Wastewater Outlet, NO₃-N, CODeq
LXZ529.99.M0018 NX7500 Calibration Software Wastewater Outlet, NO₃-N, CODeq, BODeq
LXZ529.99.M0019 NX7500 Calibration Software Wastewater Outlet, NO₃-N, NO2-N
LXZ529.99.M0020 NX7500 Calibration Software Wastewater Outlet, NO₃-N, NO2-N, CODeq
LXZ529.99.M0021 NX7500 Calibration Software Wastewater Outlet, NO₃-N, NO2-N, CODeq, BODeq
Several options for probe and calibration software combinations are available.
Please ask your local Hach contact to identify the most suitable option for your application.
Accessories
LZX914.99.11110 Stainless steel chain mounting set
LZY232 Stainless steel chain with lock, 5 m
6860100.99.0002 High Output Airblast, 230 V
LZY499 Cable Kit for High Output Airblast
LXZ529.99.B0001 Flow cell, panel, NX7500, 0.3 to 10 mm path length
LXZ529.99.0003A Flow cell ultrasonic, panel, NX7500, 0.3 to 10 mm path length
DOC053.52.35139.Jan18
LXZ529.99.C0001 Extension cable, 8-pole connector, 10 m
LXZ529.99.C0002 Extension cable, 8-pole connector, 25 m
LXZ529.99.0001A CD300 controller, 2 sensors
LXZ529.99.A002A CD500 Controller, 4 sensors
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