Product Description:
YJJ 3NO-2000CT 058-3000-100 Electrochemical Nitric Oxide NO Sensor
Special Use Flue Gas Emission Monitoring
Features:
3NO-2000CT is a three-electrode electrochemical nitric oxide (NO)
sensor, primarily used for quantitative detection of NO
concentrations ranging from 0 to 2000 ppm. It is suitable for harsh
industrial emission and environmental monitoring conditions and can
directly replace the mainstream 3-series NO sensors. It features
linear output, fast response, and good long-term stability.
Core parameter description (20℃, standard atmospheric pressure)
Parameter Value Remarks
Detected gas Nitric oxide (NO) Three-electrode electrochemical
principle
Range 0-2000 ppm Maximum overload 5000 ppm
Sensitivity 0.10 ± 0.02 μA/ppm (typical value 0.10 μA/ppm) Current
signal is proportional to the concentration, and the signal is a
positive output
Response time (T90) ≤ 25s Quickly captures concentration changes
Baseline (20℃) 0 - +12 ppm Initial zero deviation is small
Baseline drift (-20℃ to 50℃) < 30 ppm Controllable drift in a
wide temperature range
Resolution 1 ppm Meet the routine monitoring accuracy
Linearity Linear With bias + 300 mV, a corresponding bias circuit
is required
Operating temperature -20℃ to 50℃ Adapt to industrial and outdoor
environments
Pressure range 1 standard atmosphere ± 10% Compatible with routine
conditions
Humidity range 15% - 90% RH (no condensation) Prevent the influence
of condensation on performance
Long-term stability < 2% signal value / month Reliable long-term
monitoring data
Service life 3 years (in air) Storage temperature 10℃ to 30℃
Safety integrity Maximum open-circuit voltage 1.3V, maximum
short-circuit current < 1mA Compatible with explosion-proof
scenarios
Main application
Industrial flue gas emission monitoring: Used for real-time
monitoring of NO emissions from fixed pollution sources such as
coal-fired power plants, waste incineration plants, and nitric acid
plants, meeting the continuous monitoring requirements of
environmental protection regulations for chimney emissions, and can
work stably in high-concentration and high-dust harsh conditions.
Environmental air quality detection: Integrated into air quality
monitoring stations or mobile monitoring equipment, used for
grid-based monitoring of NO concentrations in urban and industrial
parks, assisting in pollution source tracing and governance
decisions, providing data support for environmental quality
assessment.
Industrial safety and process control: In production processes
involving NO such as chemical synthesis, metal processing, and
welding, real-time monitoring of leakage and process gas
concentrations, ensuring personnel safety and production stability,
and avoiding health hazards and safety accidents caused by NO
leakage.
Equipment and instrument matching: As the core sensing element,
embedded in portable NO detectors, online analysis instruments,
etc., compatible with explosion-proof, outdoor, etc. complex
conditions, supporting rapid replacement of mainstream 3-series
sensors, reducing maintenance costs.
Specifications:
| Overload | 0-2000 PPM |
| Response time | 25 s |
| Size | 20 x 16.5 |
| Sulfur dioxide detection range | 0-50ppm |
| Sensitivity | 450-750 na/PPM |
