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Rosemount 90003380 NO Infrared Detector | IR Detector

Rosemount 90003380 NO Infrared Detector (IR Detector), core NO (Nitric Oxide) detection spare part for NDIR infrared measurement channel of Rosemount K-SYSTEM/MLT/NGA2000 series continuous gas analyzers, non-dispersive infrared technology, pyroelectric/solid-state detection, range reference 150-250PPM, NO characteristic wavelength approx. 5.3μm, to be confirmed. Order available.

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Product Details

1. Product Overview

The Rosemount (Emerson) 90003380 is a NO Infrared Detector (Nitric Oxide IR Detector), serving as the core detection spare part for the NDIR (Non-Dispersive Infrared) measurement channel in Rosemount K-SYSTEM, MLT, NGA 2000 series continuous gas analyzers, specifically designed to detect NO (Nitric Oxide) concentration in gas samples.

This infrared detector uses NDIR (Non-Dispersive Infrared) absorption spectroscopy technology, based on the Lambert-Beer Law. Broadband infrared light from the IR source passes through the gas sample cell; NO molecules absorb infrared light at their characteristic absorption wavelength (approx. 5.3μm). The remaining infrared light reaches the IR detector, which converts the light intensity signal to an electrical signal, amplified by a preamplifier circuit and transmitted to the analyzer mainboard for signal processing and concentration calculation. By measuring the infrared light absorption at the NO characteristic wavelength, NO concentration in the gas sample can be accurately calculated.

The 90003380 detector typically integrates an infrared sensing element (pyroelectric/solid-state detector), narrowband interference filter for NO characteristic wavelength, and preamplifier circuit as a plug-and-play detection module. The built-in narrowband filter only allows infrared light at the NO characteristic absorption wavelength (approx. 5.3μm) to pass through, effectively suppressing interference from other wavelengths and cross-interference from other gas components, improving measurement selectivity and accuracy.

This detector corresponds to a NO measurement range of 150-250PPM reference (specific range subject to analyzer configuration and label), suitable for NO concentration detection in combustion flue gas, industrial process gas, and environmental emission monitoring applications. NO (Nitric Oxide) is a major component of nitrogen oxides (NOx), an important parameter for emission monitoring of stationary sources such as coal-fired power plants, industrial boilers, waste incinerators, cement kilns, glass furnaces, and also a key control parameter for chemical processes, nitric acid production, ammonia oxidation reactions.

Rosemount Analytical is a globally leading process gas analyzer manufacturer. Its K-SYSTEM, MLT, NGA 2000, X-STREAM series continuous gas analyzers are widely used in petrochemical, natural gas, power, metallurgy, cement, and environmental CEMS emission monitoring industries. The 90003380 NO infrared detector, as a key spare part of these analyzers, has broad applications in industrial process gas analysis and environmental emission monitoring worldwide.

As the core component of the gas analyzer, the performance of the infrared detector directly affects the analyzer's measurement accuracy, stability, response speed, and detection limit. After long-term use, the IR detector may experience sensitivity decline, zero drift, and reduced signal-to-noise ratio, requiring periodic replacement to maintain analyzer measurement performance. For critical monitoring applications such as environmental CEMS, it is recommended to keep a spare detector for timely replacement when performance declines, avoiding monitoring data exceedance and unplanned downtime.

Note: This product is a dedicated spare part for gas analyzers. Specific range, wavelength configuration, electrical interface, compatible analyzer model, and other parameters need to be confirmed based on the analyzer model and configuration. Some parameters are marked "To be confirmed by manufacturer."

2. Specifications

表格

Parameter	Value
Brand	Rosemount (Emerson, USA)
Model	90003380
Product Type	NO Infrared Detector (Nitric Oxide IR Detector)
Detected Gas	NO (Nitric Oxide)
Application	NDIR measurement channel spare part for Rosemount K-SYSTEM/MLT/NGA2000 series continuous gas analyzers
Detection Technology	NDIR (Non-Dispersive Infrared)
Detector Type	Pyroelectric / Solid-state (to be confirmed)
NO Characteristic Wavelength	Approx. 5.3μm (reference, subject to filter configuration)
Measurement Range	Reference 150-250PPM, specific subject to analyzer config and label (to be confirmed)
Integrated Components	IR sensing element + NO wavelength narrowband filter + preamplifier circuit (to be confirmed)
Signal Output	Analog electrical signal (pre-amplified) (to be confirmed)
Supply Voltage	To be confirmed (reference analyzer internal power supply)
Operating Temperature	To be confirmed (reference analyzer internal 0-50°C)
Storage Temperature	To be confirmed (reference -20 to 70°C)
Weight	To be confirmed (reference approx. 100-200g)
Installation	Installed in IR photometer/optical bench assembly, dedicated interface (to be confirmed)
Compatible Analyzers	Rosemount K-SYSTEM, MLT, MLT1, MLT3, NGA2000 series (to be confirmed)
Similar Part Numbers	90003379 (CO-ULOW IR detector), 42714098-V16-1 etc. (to be confirmed)
Certifications	To be confirmed (with analyzer overall certification)
Origin	To be confirmed (Emerson global manufacturing)
HS Code	To be confirmed (reference 90271000 / 85414000)
Stock Status	Order available
Warranty	12 months

3. Key Features

Genuine Rosemount Spare Part, Compatible with K-SYSTEM/MLT/NGA Series Analyzers — 90003380 is a genuine Rosemount NO infrared detector spare part, specifically designed for K-SYSTEM, MLT, NGA2000 series continuous gas analyzers, perfectly matching the analyzer's IR photometer/optical bench assembly. Installation interface, electrical connection, and signal output all meet original factory specifications, ensuring the analyzer restores original measurement performance after replacement.
NDIR Non-Dispersive Infrared Technology, Accurate NO Characteristic Wavelength Detection — Uses NDIR absorption spectroscopy based on Lambert-Beer Law, calculates NO concentration by detecting infrared light absorption by NO molecules at characteristic wavelength (approx. 5.3μm). NDIR technology offers good selectivity, high sensitivity, good stability, long life, and no electrochemical cross-interference from other gases — the mainstream technology for industrial NO detection.
Pyroelectric/Solid-state Detector, High Sensitivity Low Noise — Uses pyroelectric/solid-state infrared sensing element with high sensitivity and fast response to infrared radiation changes, combined with low-noise preamplifier circuit, high output signal-to-noise ratio, ensuring NO concentration measurement accuracy and stability, especially suitable for low-concentration NO detection and trace analysis, meeting low-range requirements for environmental emission monitoring.
Integrated NO Narrowband Filter, High Selectivity Anti-cross-interference — Detector integrates narrowband interference filter for NO characteristic absorption wavelength (approx. 5.3μm), only allowing infrared light at NO characteristic wavelength to pass, effectively suppressing interference from other wavelengths and cross-interference from CO2, CO, SO2, H2O and other gas components, improving measurement selectivity and anti-interference, ensuring accurate NO measurement in complex mixed gases.
Integrated Preamplifier, Stable Signal Plug-and-Play — Detector module integrates preamplifier circuit, directly amplifying weak electrical signal from IR sensing element before output, reducing interference and attenuation during signal transmission. Plug-and-play module, easy replacement, no on-site circuit debugging required, reducing maintenance difficulty and downtime, professional maintenance personnel can complete replacement in short time.
Core Detection Component, Directly Affects Analyzer Performance — IR detector is the core component of NDIR gas analyzer. Its sensitivity, stability, and response speed directly determine analyzer's measurement accuracy, zero drift, span stability, and detection limit. Periodic replacement of aging IR detectors is a key maintenance measure to ensure long-term accurate and reliable analyzer operation, especially important for environmental CEMS compliance monitoring.
Key Spare Part for NO/NOx Monitoring, Essential for Environmental Compliance — NO is a major component of nitrogen oxides (NOx), a mandatory parameter for CEMS emission monitoring of stationary sources such as coal-fired power plants, industrial boilers, waste incinerators, cement kilns, glass furnaces, and also a key control parameter for chemical processes, nitric acid production, ammonia oxidation. The 90003380 NO detector is the core spare part ensuring accurate and reliable continuous NO monitoring in these applications.
Compact Lightweight Design, Easy Installation and Maintenance — Detector module is compact, lightweight (reference approx. 100-200g), installed in analyzer's IR photometer/optical bench assembly, connected through dedicated interface for quick connection. During replacement, simply remove old module and install new one, easy operation, reducing analyzer downtime and maintenance cost.
Long-life Design, Reduced Maintenance Frequency — Uses high-quality IR sensing element, stable narrowband filter, and preamplifier circuit, with long service life under normal operating conditions, reducing frequent replacement maintenance costs and downtime losses. It is recommended to replace promptly when the detector shows significant sensitivity decline, excessive zero drift, or reduced signal-to-noise ratio, based on analyzer maintenance cycle and performance calibration results.
Emerson Quality Assurance, Professional Channel Supply Worldwide Delivery — As a globally leading process analytical instrument brand under Emerson, Rosemount products undergo strict quality control and factory testing. Supplies genuine gas analyzer spare parts through professional procurement channels, supports single unit and bulk project orders, can provide analyzer overall spare parts packages (IR detector + source + chopper + sample cell + pump + filter + sensor + filter combination) and annual spare parts framework agreements, supports worldwide delivery and expedited service.

5. Model Explanation

Product Model: 90003380

Product Description: Rosemount NO Infrared Detector (Nitric Oxide IR Detector), core NO detection spare part for NDIR measurement channel of K-SYSTEM/MLT/NGA2000 series continuous gas analyzers, non-dispersive infrared technology, pyroelectric/solid-state detection, NO characteristic wavelength approx. 5.3μm, range reference 150-250PPM

Model Explanation:

90003380 is the part number for Rosemount gas analyzer spare parts, corresponding to the NO (Nitric Oxide) infrared detector. In this spare part numbering system, different numbers correspond to infrared detectors for different detected gases and range configurations.

Similar Part Numbers Reference:

表格

Part Number	Detected Gas / Description
90003380	NO (Nitric Oxide) IR detector, this product
90003379	CO-ULOW (Carbon Monoxide ultra-low range) IR detector, K-SYSTEM complete assembly
42714098-V16-1	IR Detector, another version/series
42714098-V31	Same series different version IR detector

Note: The above similar part number information comes from public trade data. Specific correspondence is subject to Emerson official spare parts list, marked "To be confirmed by manufacturer."

NDIR NO Detection Principle:

IR source emits broadband infrared light → passes through gas sample cell → NO molecules absorb IR light at characteristic wavelength (approx. 5.3μm) → remaining IR light reaches IR detector → detector converts light intensity to electrical signal → preamplification → analyzer mainboard calculates NO concentration based on Lambert-Beer Law
The IR detector is the terminal core receiving component in this optical path

Compatible Analyzer Series (to be confirmed):

Rosemount K-SYSTEM series gas analyzers
Rosemount MLT / MLT1 / MLT3 multi-component gas analyzers (some discontinued)
Rosemount NGA 2000 series gas analyzers (NGA-NDIR module)
Other Rosemount continuous gas analyzers using NDIR technology for NO detection

NO (Nitric Oxide) Basics:

Molecular formula: NO, molecular weight 30.01
Major component of nitrogen oxides (NOx), colorless gas at room temperature
Main sources: fossil fuel combustion (power plants, boilers, incinerators), chemical processes (nitric acid production, ammonia oxidation), automotive exhaust
Environmental hazards: photochemical smog, acid rain, ozone layer depletion, respiratory system harm
Monitoring standards: China GB 13223, GB 13271 emission standards; US EPA Method 7E/7C; EU EN 14792 etc.

Related Spare Parts (ordered separately, to be confirmed):

IR Source
Chopper Wheel / Motor
Analysis Cell / Sample Cell
Reference Filter
Analyzer Mainboard / Preamplifier Board
Sample pump, filter, flow controller etc.

Official Documentation Reference:

Rosemount MLT1 Multi-Component Gas Analyzer Product Data Sheet
Rosemount NGA 2000 Instruction Manual (NDIR measurement chapter)
Analyzer Spare Parts List

6. Why Choose Us

Professional Procurement, Genuine Quality Guaranteed — All Rosemount gas analyzer spare parts obtained through professional procurement channels, ensuring genuine Emerson/Rosemount original products with product identification and factory quality documents, 12-month quality warranty. Pre-shipment appearance inspection, model confirmation, part number verification, and packaging check performed.
Worldwide Delivery, Professional Instrument Logistics — DHL/FedEx/UPS international courier, global delivery available. Precision analytical instrument spare parts use shock-proof moisture-proof anti-static professional packaging, ensuring safe transport of IR detectors and other precision optical electronic components. Expedited logistics and customs clearance available, delivery to 200+ countries, meeting emergency repair needs.
Professional Technical Support, Full-process Service from Selection to Installation — IR detector selection consultation (confirming analyzer model, measured gas type and range, existing part number, version configuration matching), installation/replacement guidance (IR photometer/optical bench disassembly, detector replacement, calibration verification process), fault diagnosis (measurement abnormality/zero drift/sensitivity decline/low SNR cause analysis), and spare parts list review, helping users correctly select, install and maintain.
Flexible Procurement, Analyzer Spare Parts Packages and Framework Agreements — Single detector and bulk project orders, tiered discounts. Gas analyzer overall spare parts packages (NO/CO/SO2/CO2 IR detectors + UV detector + source + chopper + sample cell + pump + filter + sensor + filter combination) and annual framework agreements available, helping users optimize spare parts inventory, reduce procurement cost, minimize downtime risk.
Pre-shipment Verification, Test Report Available — Appearance, packaging, model, part number checks before shipment; detector appearance inspection, interface check, and factory quality document verification report available if necessary, ensuring delivered spare part model-accurate, in good condition, well-packaged. For emergency repair needs (CEMS data loss causing environmental assessment, analyzer failure causing production interruption, process control emergency), priority inventory coordination and expedited shipping available.

7. Frequently Asked Questions (FAQ)

Q1: What is 90003380? Which analyzer is it used in? What gas does it detect?

A: The 90003380 is a Rosemount (Emerson) NO Infrared Detector (Nitric Oxide IR Detector), a core detection spare part for the NDIR (Non-Dispersive Infrared) measurement channel of continuous gas analyzers.

Basic info: Brand Rosemount (Emerson, USA), model 90003380, type NO IR Detector, technology NDIR (pyroelectric/solid-state), NO characteristic wavelength approx. 5.3μm, range reference 150-250PPM (subject to analyzer config and label).

Which analyzer? Mainly used in Rosemount K-SYSTEM, MLT (MLT1/MLT3), NGA 2000 series continuous gas analyzers' NDIR measurement channels, installed in the analyzer's IR photometer/optical bench assembly as the core terminal receiving component in the optical path.

What gas? Specifically detects NO (Nitric Oxide). NO is a major component of nitrogen oxides (NOx), an important monitoring parameter for: coal-fired power plants, industrial boilers, waste incinerators, cement kilns, glass furnaces CEMS emission monitoring; chemical processes, nitric acid production, ammonia oxidation industrial process control; natural gas purification, refining, metallurgy process gas analysis; diesel engines, gas turbines combustion equipment emission monitoring.

Note: The specific range, wavelength configuration, and compatible analyzer model of 90003380 need to be confirmed based on your analyzer model, configuration, and existing old detector label. Please provide the complete analyzer model and configuration code, or a photo of the old detector label, and we can help identify specific parameters. If uncertain, marked "To be confirmed by manufacturer," subject to official Emerson confirmation.

Q2: What are the symptoms of a failed IR detector? How to judge replacement need? How often to replace?

A: The IR detector is the core component of an NDIR gas analyzer. After long-term use, it will age and performance decline. Common failure symptoms and replacement criteria:

Common symptoms of failed/aging IR detector:

Abnormally low or no measurement response when passing known concentration NO span gas
Severe zero drift, unstable zero when passing zero gas (high purity nitrogen), cannot recover via auto zero
Span drift / poor linearity, span calibration goes out of tolerance shortly after calibration
Reduced SNR / increased noise, measurement value jumping, especially obvious at low NO concentration
Slow response, T90 response time significantly longer than specification
Analyzer alarms: "detector fault", "optical path fault", "weak signal" (refer to analyzer manual for specific alarm codes)
Calibration cannot pass, zero/span calibration fails or calibration parameters exceed allowable range

How to judge replacement need?

Performance verification: Periodically pass NO standard gas for zero and span verification. If measurement error exceeds analyzer allowable range (usually ±2%FS or ±5%FS), and cannot recover after cleaning, calibration, adjustment — detector needs replacement.
Calibration trend analysis: Record zero and span parameters each calibration. If sensitivity (span gain) continuously declines, zero offset continuously increases — detector is aging, approaching replacement time.
SNR test: Professional maintenance personnel can measure detector output SNR via analyzer diagnostic function or oscilloscope. If SNR significantly below factory spec — detector aging.
Preventive replacement: Per analyzer maintenance manual recommended cycle, combined with actual operating environment (high temperature, high dust, high humidity, corrosive gas accelerate aging), perform preventive replacement.

How often to replace? Service life depends on multiple factors:

Good conditions (clean gas, constant temp, low concentration): 3-5+ years
General industrial process gas: 2-4 years
Harsh conditions (high temp, high dust, high humidity, corrosive gas): 1-3 years
Environmental CEMS continuous operation: 2-3 years (recommend preventive replacement)

Recommendation: Comprehensive performance verification every 6-12 months; establish calibration parameter trend records; for critical applications (environmental CEMS, safety interlock, quality control), recommend keeping a spare detector for timely replacement. After replacement, must perform zero and span calibration, and linearity verification if necessary.

Q3: How to replace the IR detector? Is calibration needed after replacement? Can I do it myself?

A: IR detector replacement requires certain professional knowledge and skills, recommended to be performed by trained professional maintenance personnel.

General replacement steps (refer to analyzer manual for specifics):

Preparation: Confirm analyzer stopped and powered off (or enter maintenance mode per manual); prepare new NO IR detector (confirm model 90003380 match); prepare tools (screwdriver, hex wrench, anti-static wrist strap, lint-free cloth, isopropyl alcohol); record current analyzer calibration parameters.
Remove old detector: Open analyzer housing, locate IR photometer/optical bench assembly; disconnect detector electrical connection (plug/ribbon cable); loosen fixing screws/clips, carefully remove old detector. Note: avoid collision and contamination of other optical components (source, filters, sample cell).
Install new detector: Check new detector appearance and interface; align to installation position, gently push in until seated; tighten fixing screws (moderate force, not over-tight); connect electrical plug, confirm firm connection.
Close housing, power on warm up: Check no tools/foreign objects left inside; close analyzer housing; power on, let analyzer warm up and stabilize (usually 30 min to 2 hours, refer to manual).
Calibration verification: Pass zero gas (high purity nitrogen), perform zero calibration; pass NO span standard gas, perform span calibration; perform multi-point linearity verification if necessary; confirm measurement error within allowable range.

Is calibration needed after replacement? Must calibrate. After IR detector replacement, due to differences in sensitivity, zero, and spectral response between new and old detectors, zero and span calibration must be performed, and linearity calibration if necessary. Using without calibration will result in inaccurate measurements. Calibration NO standard gases must be Certified Reference Material (CRM) with accurate traceable concentration values covering the analyzer measurement range.

Can I do it myself?

If you or your maintenance personnel have received Rosemount gas analyzer maintenance training, are familiar with analyzer structure and calibration procedures, and have appropriate tools and NO standard gases — you can replace it yourself.
If no experience — recommend contacting Emerson official service or professional gas analyzer maintenance service provider for replacement and calibration.
Notes: Wear anti-static wrist strap to avoid electrostatic damage to detector electronics; do not touch detector optical window (IR incident surface) with hands, if contaminated gently wipe with lint-free cloth dampened with isopropyl alcohol; avoid touching other optical components in the photometer during replacement; for flameproof analyzers, replacement must comply with explosion-proof regulations by qualified personnel.

Q4: What is the difference between NDIR infrared and CLD chemiluminescence for NO detection? Which is 90003380?

A: The 90003380 is an NDIR (Non-Dispersive Infrared) infrared detector, used in the NDIR measurement channel of Rosemount K-SYSTEM/MLT/NGA series gas analyzers. NO detection mainly has two mainstream technologies: NDIR infrared and CLD (Chemiluminescence Detection), each with characteristics:

NDIR Non-Dispersive Infrared (used by 90003380):

Principle: NO molecules absorb infrared light at characteristic wavelength (approx. 5.3μm), calculate concentration by measuring absorption
Advantages: Simple structure, low maintenance, long life, lower cost, can simultaneously measure multiple IR-absorbing gases (CO/CO2/SO2/NO/CH4 etc.), no ozone generator or vacuum pump needed
Disadvantages: Relatively higher detection limit (usually PPM level), limited sensitivity for low concentration (PPB level) NO; possible cross-interference from H2O, CO2 etc. (needs filter and algorithm compensation)
Suitable for: Industrial process control, medium-high concentration NO monitoring, multi-component simultaneous analysis, budget-limited applications

CLD Chemiluminescence (used by Rosemount XECLD analyzer):

Principle: NO reacts with ozone (O3) to form excited NO2, which emits characteristic wavelength light when returning to ground state; calculate NO concentration by measuring chemiluminescence intensity
Advantages: Extremely high sensitivity (can detect PPB level 甚至 PPT level NO), excellent selectivity (almost no cross-interference), fast response, wide linear range
Disadvantages: Needs ozone generator (safety hazard), needs vacuum pump, higher maintenance, higher cost, only measures NO (needs molybdenum converter for NOx)
Suitable for: Environmental ultra-low concentration emission monitoring (coal-fired power plant ultra-low emission, gas turbine emission), atmospheric environmental monitoring, scientific research requiring PPB level precision

How to choose?

Your analyzer is K-SYSTEM/MLT/NGA series using NDIR technology → choose 90003380 NDIR NO IR detector
Your analyzer is XECLD series chemiluminescence analyzer → needs CLD dedicated spare parts (reaction chamber, photomultiplier tube, ozone generator etc.), not 90003380
New system selection: medium-high concentration industrial process → NDIR; ultra-low concentration environmental emission → CLD

Note: The 90003380 is an NDIR IR detector and cannot be used in CLD chemiluminescence analyzers. Please confirm your analyzer type and measurement technology to avoid purchasing wrong spare parts.

Q5: In stock? Lead time? Price?

A: Currently Order Available. The 90003380 is a dedicated NO infrared detector spare part for Rosemount gas analyzers, a professional analytical instrument spare part with limited market inventory, specific stock fluctuates.

Lead time: Standard 4-8 weeks (ordering from Emerson through professional channels or global stock allocation). Dedicated gas analyzer spare parts usually need to be allocated from Emerson factory or regional spare parts centers; some common spare parts may be in stock, specific subject to formal quotation.
Price: Subject to formal quotation, depends on quantity, supply channel, whether includes technical service and calibration support. As a core optical electronic spare part for gas analyzers, it is a medium-to-high value spare part; bulk procurement enjoys tiered discounts.
Expedited service: For urgent needs (CEMS monitoring data loss causing environmental assessment, analyzer failure causing production interruption, project commissioning emergency), we can try to coordinate global stock or expedited ordering, please contact sales team.
Please indicate: complete analyzer model, measured gas and range, existing old detector model, required quantity, desired delivery time and destination when inquiring; we will coordinate fastest delivery and optimal price.
If you need to purchase other related analyzer spare parts simultaneously (IR source, chopper wheel, sample cell, sample pump, filter, other gas detectors, etc.), we can provide complete gas analyzer spare parts package combined quotation with more favorable pricing, and annual spare parts framework agreement service.

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