Product Introduction

1. Product Overview‌
‌-- Model and Series‌: Siemens ULTRAMAT 23 series, Model ‌7MB2337-4PG00-3PG1‌.
‌-- Measurement Principle‌: Based on ‌Non-dispersive infrared (NDIR) technology‌, combined with electrochemical or paramagnetic oxygen sensors, multi-component detection is achieved through the absorption characteristics of gas to infrared light of specific wavelengths‌.
‌-- Core Function‌: It can simultaneously measure ‌up to three infrared sensitive gases (such as CO, CO₂, NO, SO₂, CH₄, etc.)‌ and ‌oxygen (O₂)‌, and supports four-component expansion (such as CO₂, CH₄, H₂S + O₂ in biogas applications)‌.
2. Technical Parameters‌
‌Measuring Range‌: Customized according to gas type (such as CO₂: 0-5% vol, NO: 0-400 mg/m³)‌.
‌Accuracy‌: Resolution <0.01 vpm (H₂S), measurement value drift <2% small range/week‌.
‌Response time‌: ≤10 seconds (T90)‌.
‌Output interface‌: RS-485, RS-232, Profibus, support remote data transmission and integrated control‌.
‌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 detection‌
-- Supports continuous measurement of four components (3 infrared gases + O₂), multi-layer detector design eliminates cross interference and improves data reliability‌.
‌3.2 Intelligent maintenance function‌
-- Supports automatic calibration of ambient air (zero point calibration), infrared components only need to be verified by standard gas once a year, reducing maintenance costs‌. 3‌.3 Industrial-grade durability‌
-- Corrosion-resistant gas chamber materials and anti-vibration structure are suitable for harsh industrial environments such as high temperature and high dust.
‌3.4 User-friendly design‌
-- Plain text menu operation interface, equipped with log records and preventive maintenance prompts to simplify the operation process.
4. Typical application scenarios‌
‌-- Industrial emission monitoring‌: Real-time monitoring of CO, NOx, and SO₂ in flue gas from coal-fired/gas-fired boilers and incinerators.
‌-- Biogas and energy recovery‌: Analysis of biogas composition (CH₄, CO₂, H₂S) and O₂ concentration to optimize energy utilization efficiency.
‌-- Process control‌: Measurement of gas concentration and calorific value in chemical production, biological fermentation and other scenarios.
‌-- Safety warning‌: Monitoring of combustible/toxic gas leakage in coal powder silos and sewage treatment plants.
5. Precautions for use‌
‌5.1 Installation requirements‌
-- A pre-filter and dehumidification device must be configured to prevent particulate matter or moisture from contaminating the sensor‌.
‌5.2 Calibration specifications‌
-- Oxygen calibration depends on ambient air, and the paramagnetic oxygen version is not suitable for emission monitoring scenarios‌.
‌5.3 Compatibility restrictions‌
-- When measuring four components, the electrochemical oxygen sensor version must be selected, and paramagnetic oxygen is only used in specific scenarios‌.

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