TriOS NICO UV Nitrate Sensor

The TriOS NICO is a low-cost UV photometer for online measurement of nitrate in lakes/rivers, drinking water, and wastewater applications.

Features

  • Internal compensation for temperature, turbidity, and organic substances
  • RS-485 Modbus RTU output for integration with data collection platforms
  • Optional W55 V2 wiper cleans optics & reduces maintenance intervals
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Overview
The TriOS NICO is a low-cost UV photometer for online measurement of nitrate in lakes/rivers, drinking water, and wastewater applications. The four detection channels enable a precise optical determination of nitrate by absorption, taking into account turbidity and organic substances that pose a problem for many products currently on the market. An internal temperature correction additionally increases stability of the measured values.

Easy Configuration
The TriOS NICO is compatible with the G2 interface box, allowing fast and easy configuration of the sensors using a web browser. The sensor can be easily integrated into existing process control systems and external data loggers using the native RS-485 Modbus RTU output, and the optional W55 V2 wiper reduces maintenance intervals by cleaning the optics before each measurement.

Light Source
Xenon flash lamp
Detector
4 photo diodes + filter
Measurement principle
Attenuation
Optical path
0.3mm, 1mm, 2mm, 5mm, 10mm, 20mm, 50mm
 
Parameter
NO3-N, NO3, NOx-N, NOx (calibrated with NO3 standard solution)
Measurement range at 1mm path
0.5...60 mg/L NO3-N
Measurement range at 10mm path 
0.05...6 mg/L NO3-N
Measurement accuracy
± (5% + 0.1 mg/L NO3-N) with 10mm path
± (5% + 1 mg/L NO3-N) with 1mm path
Turbidity compensation
Yes
Data logger
~2 GB
T100 response time
20 s
Measurement interval
≥ 10 s
 
Housing material
Stainless steel (1.4571/1.4404) or titanium (3.7035)
Dimensions (L x Ø)
~ 470 mm x 48 mm (10mm path)
~ 18.5“  x 1.9“ (with 10mm path)
Weight stainless steel
~ 3 kg
~ 6.6 lbs
Weight titanium
~ 2 kg
~ 4.4 lbs
 
Interface digital
Ethernet (TCP/IP), RS-485 (Modbus RTU)
Power consumption
≤ 7 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
 
Max. pressure with SubConn
30 bar
~ 435 psig
Max. pressure with fixed cable
3 bar
~ 43.5 psig
Max. pressure in FlowCell
1 bar, 2...4 L/min
~ 14.5 psig at 0.5 to 1.0 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 to 33 fps
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TriOS NICO UV Nitrate Sensor
15S401010
NICO UV nitrate sensor with 10mm path length & stainless steel housing, MCBH-8-MP connector
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TriOS NICO UV Nitrate Sensor
15S301010
NICO UV nitrate sensor with 5mm path length & stainless steel housing, MCBH-8-MP connector
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TriOS NICO UV Nitrate Sensor
15S201010
NICO UV nitrate sensor with 2mm path length & stainless steel housing, MCBH-8-MP connector
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