1. Product Description

23093-4-3 with order code 3KXG801000U0100 is ABB SCC-K quartz glass tube NO₂/NO catalytic converter, designed for CEMS flue gas emission monitoring systems. It adopts carbon-molybdenum catalyst to fully convert nitrogen dioxide (NO₂) into nitric oxide (NO), enabling total NOₓ measurement (NO + NO₂) by downstream gas analyzers. This unit is rated 240V AC power supply, equipped with integrated digital temperature controller, front-access tool-free catalyst cartridge replacement structure, and 19-inch rack 3U standard cabinet design with IP20 housing protection. It supports adjustable reaction temperature from 50°C up to 700°C, with conversion efficiency over 95% under nominal operating conditions, widely used in thermal power plants, chemical plants and industrial boiler continuous emission monitoring.

• Full Part Number: 23093-4-3, Commercial Code: 3KXG801000U0100
• Reaction Tube: Quartz glass high-temperature resistant tube
• Power Supply: 240 VAC, 48–62 Hz, power consumption 575 VA
• Catalyst Type: Carbon-molybdenum catalytic medium
• Max Sample Gas Flow: 150 l/h
• Conversion Efficiency: ≥95% with new catalyst
• Operating Temperature Range: 50°C ~ 700°C adjustable; typical working temp 320–360°C
• Warm-up Time: Approx. 30 minutes to reach stable working temperature
• Mechanical Size: 19” rack width, 3 height units, net weight 10.64 kg

• Protection Class: IP20, Safety Standard EN 61010-1

  
  

2. Core Product Functions

1. NO₂ catalytic reduction conversion: Heat sample flue gas passing through quartz tube, utilize carbon-molybdenum catalyst to convert NO₂ into measurable NO, realize total NOₓ continuous monitoring for emission compliance test.
2. Independent digital temperature closed-loop control: Built-in PID temperature regulator to stabilize reaction tube temperature, eliminate conversion efficiency fluctuation caused by flow or ambient temperature changes.
3. Manual NO / NOₓ mode switching: Front panel rotary selector switch allows direct switching between pure NO measurement and total NOₓ measurement without external solenoid valves.
4. Tool-free catalyst maintenance: Front removable catalyst cartridge, quick replacement without disassembling the whole cabinet, greatly reducing maintenance downtime.
5. Built-in system self-diagnosis & alarm output: Monitor over-temperature, heater failure, abnormal gas flow; transmit fault status via rear 9-pin D-Sub signal port to DCS or CEMS host system.
6. Low pressure-loss gas path design: Max pressure drop ≤2 kPa at 90 l/h flow, avoid backpressure interference to upstream sampling probe and gas conditioning system.

3. Application Scenarios

• Thermal power plant flue gas CEMS system: NOₓ emission monitoring for boiler and gas turbine exhaust, matched with ABB gas analyzers, GE Mark VIe and Bently 3500 unit monitoring systems.
• Petrochemical refinery & chemical production lines: Furnace, incinerator exhaust NOₓ continuous detection for environmental compliance reporting.
• Industrial waste incineration plant, cement kiln, glass furnace flue gas emission monitoring.
• Marine & offshore platform power generation exhaust gas analysis with salt fog resistant cabinet layout.
• Steel metallurgy sintering furnace and heating furnace flue gas sample pretreatment system.
• Environmental protection monitoring stations, portable and fixed stack emission monitoring equipment supporting NOₓ full spectrum measurement.

4. Common Typical Issues & Root Causes