Nitrogen Dioxide Online Monitor

Nitrogen dioxide online monitors detect gas concentrations through chemiluminescence or ultraviolet absorption methods. The instrument continuously draws air samples into the reaction chamber, where nitrogen dioxide reacts with ozone to produce photons or absorbs specific ultraviolet light. A photodetector measures changes in light intensity and converts them into concentration data. It is used for real-time monitoring of ink drying exhaust in printing plants and plastic pyrolysis emissions to ensure that workshop air quality meets standards.
Selection
When selecting, ensure the detection range covers typical concentrations in the workshop. The chemiluminescence method is suitable for low-concentration detection, while the ultraviolet absorption method offers strong anti-interference capabilities. Check that the response time aligns with the speed of process changes, and ensure the sampling pipelines are corrosion-resistant. Verify that the data output interface is compatible with the existing system, as sensor lifespan and calibration cycles impact maintenance costs. Environmental temperature, humidity, and explosion-proof ratings must meet the conditions of the installation area.

Standards

Instruments

Using industrial grade Sensor to detect nitrogen dioxide gas, range 0~ 20ppm, resolution 0.1ppm, Response Time T90 < 60s, with waterproof, dustproof and explosion-proof characteristics, small and durable.

$ 248.00

Electrochemical sensor, range 0-2000ppm, accuracy +/- 2% F. S, with Intrinsic Safety (IS) design and a variety of signal output, support remote monitoring and automatic Zero tracking.

$ 614.00

Adopt photometric 90 ° scattering measurement method, equipped with automatic cleaning brush and bubble measurement cell, support automatic sewage discharge and cleaning interval setting, Measurement range 0.00-500 NTU, Repeatability ≤ 2%.

$ 2783.00

Electrochemical sensors imported, detection accuracy +/- 2% F. S, Response Time less than 10 seconds, with explosion-proof certification and a variety of signal output functions, suitable for long-term stable operation in harsh industrial environments.

$ 787.00

Electrochemical sensors imported, detection accuracy +/- 2% F. S, Response Time less than 10 seconds, with Intrinsic Safety (IS) design and automatic Zero tracking function, support a variety of signal output and remote monitoring.

$ 528.00

Electrochemical sensor technology, detection accuracy of +/- 2% F. S, Response Time less than 10 seconds, with intrinsically safe circuit design and explosion-proof certification, support a variety of signal output and remote monitoring functions.

$ 604.00

Electrochemical sensor, detection accuracy +/- 2% F. S, Response Time less than 10 seconds, Intrinsic Safety (IS) design, support RS485 and 4-20mA dual output, suitable for gas concentration monitoring in hazardous environments.

$ 528.00

Imported Electrochemical sensor, detection accuracy +/- 2% F.S, Response Time < 10s, with intrinsically safe circuit design and explosion-proof certification, support RS485 and 4-20mA dual output, suitable for various harsh industrial environments.

$ 604.00

Imported Electrochemical sensor, detection accuracy +/- 2% F. S, Response Time less than 10 seconds; with intrinsically safe circuit design and explosion-proof certification, support RS485 and 4-20mA signal output, suitable for real-time monitoring of various industrial environments.

$ 604.00

Electrochemical sensor technology, detection accuracy +/- 2% F. S, Response Time less than 10 seconds, with explosion-proof certification and a variety of signal output interfaces, support remote real-time monitoring and automatic Zero tracking, suitable for hazardous environment Gas detection.

$ 604.00

Imported High Accuracy Electrochemical sensor, detection limit up to 0.001ppm. Support 4-20mA, RS485 and other signal output, with overvoltage, lightning protection, short circuit and other multiple protection and automatic recovery functions.

$ 582.00

Adopt automatic nitrogen measurement distillation system, nitrogen measurement range 0.1-200 mgN, collection rate ≥ 99%, repeability rate < +/- 1% relative to Standard Deviation, semi-automatic working mode, distillation time 5-15 minutes, suitable for a variety of sample analysis.

$ 493.00

It can simultaneously detect 9 paraMeters such as residual chlorine, chlorine dioxide, ammonia nitrogen, etc., with a resolution of 0.001mg/L. It adopts high-intensity long-life Illuminant and micro-processing technology to ensure long-term stable operation.

$ 877.00

Micro vibration technology implementation of real-time online measurement, range 0~ 50~ 100mpa.s, accuracy +/- 0.5%, Response Time 2 seconds, suitable for a variety of fluid media.

$ 7335.00

Contains 1 pack of total nitrogen base Reagent, 1 pack of potassium persulfate powder, 25 packs of anti-interference agent and 25 packs of acid Reagent, suitable for DGB-401 instrument, providing complete detection components.

$ 164.00