Product Introduction

1. Product Overview
Brand and Model: Siemens ULTRAMAT 23 series infrared gas analyzer, model 7MB2337-0AG00-3PG1.
Measurement Principle: Based on non-dispersive infrared (NDIR) technology, combined with electrochemical oxygen sensor, multi-component detection is achieved through the absorption characteristics of gas to infrared light of specific wavelengths.
Core Function: Supports simultaneous measurement of 3 infrared sensitive gases (such as CO, CO₂, NO, SO₂, etc.) and oxygen (O₂), and some configurations can be expanded to four-component analysis.
2. Technical Parameters
Measurement Range: Customized according to gas type (such as CO: 0-5% vol, SO₂: 0-5000 vpm).
Accuracy: Resolution <0.01 vpm (H₂S), measurement value drift <2% small range/week.
Response time: ≤10 seconds (T90) 35. Output interface: RS-485, Profibus, support remote data transmission and monitoring. Power supply and protection: 230 V AC, 50 Hz; 19-inch pull-out design, protection level IP65.

3. Core features

3.1 Multi-component high-precision measurement -- Can analyze 3 infrared gases + oxygen at the same time, multi-layer detector design reduces cross-interference and improves selectivity.

3.2 Intelligent maintenance -- Supports automatic calibration of ambient air (zero point calibration), only requires standard gas verification once a year, reducing maintenance costs.

3.3 Industrial reliability -- Corrosion-resistant material gas chamber, anti-vibration design, suitable for harsh environments such as high temperature and high dust.

3.4 User-friendly -- Equipped with a plain text menu operation interface and a wireless handheld operator, supports remote operation and logging.

4. Typical application scenarios‌
‌4.1 Industrial emission monitoring‌: Real-time monitoring of CO, NOx, and SO₂ in flue gas from coal-fired/gas-fired boilers and incinerators‌.
‌4.2 Process control‌: Gas concentration and calorific value measurement in chemical production, biological fermentation and other scenarios‌.
‌4.3 Safety protection‌: Early warning of flammable/toxic gas leakage in coal powder silos and sewage treatment plants‌.

5. Precautions for use‌
‌5.1 Installation requirements‌
-- Pre-filters and dehumidification devices are required to prevent sample gas from contaminating the sensor‌.
‌5.2 Calibration specifications‌
-- Oxygen calibration depends on ambient air, and infrared components need to be regularly verified with standard gas‌.
‌5.3 Compatibility restrictions‌
-- The paramagnetic oxygen measurement version is not suitable for emission monitoring scenarios, and the electrochemical sensor version must be selected‌.

6. Application field：

7MB2337-0NH00-3PN1 gas analyzer is widely used in various industrial fields, including chemical industry, cement, environmental monitoring, etc. It can be used to measure and control the gas composition in the production process to ensure product quality and safe operation. For example, in the chemical industry, it can be used to monitor the content of harmful substances in the exhaust gas; in environmental monitoring, it can be used to monitor the concentration of pollutants in the atmosphere in real time.

7. Maintenance and consumables：

In order to ensure the accuracy and reliability of the 7MB2337-0NH00-3PN1 gas analyzer, some consumables need to be replaced and maintained regularly. These consumables include gas filters, oxygen battery modules and sensors. For example, C79451-A3458-B541 is a commonly used gas filter used to filter impurities in the gas to ensure the accuracy of the analysis. U23 accessories, KE-25F3, etc. are important parts of the oxygen analyzer and need to be replaced regularly to maintain the performance of the instrument.

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