Nitric oxide analyzer 700 LX HCLD NOx

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Overview The 700 LX HCLD NOx analyzer uses chemiluminescence to quantify NO and NOx concentrations in gas samples. In NO mode, nitric oxide reacts with ozone to produce light proportional to NO concentration, detected by a photodiode. In NOx mode, NO2 is converted to NO for total NOx measurement.

Features and Benefits

• Measurement range: 3 ppm to 3,000 ppm full scale (higher ranges on request)
• Three measurement modes: NO, NOx, NO/NO2/NOx
• Heated oven for hot/wet sampling (standard 85°C, 100°C on request)
• Automatic calibration and auto-ranging
• Fast response: typically < 3 s to 90% FS
• Linux-based embedded operating system
• Electronic sample and ozone flow control
• No vacuum pump required
• Comprehensive diagnostics and monitoring

Options

• Internal sample pump
• Internal calibration solenoid valves
• Internal ozone pump
• Low flow option (0.6 LPM)
• Low pressure option
• 19-inch rack mounting slides

Main Applications

• Combustion efficiency monitoring
• Fuel cell testing and analysis
• Turbine/generator feedback control
• Ammonia slip detection
• Process chemical gas analysis
• Personnel safety monitoring
• Pharmaceutical process control
• Vehicle and engine emissions

Technical Information Measuring ranges: NO/NOx: 0-3 to 0-3,000 ppm (higher ranges available on request)
Detector: Photodiode
Response time: Typically < 3 seconds to 90% full scale
Repeatability: Better than 0.5% FS
Linearity: Better than 1% FS
Accuracy: Better than 1% FS
Precision: Better than 0.5% FS
Noise: < 0.5% FS
Zero & span drift: < 1% FS per 24 hours
CO2 effect: < 2% with 10% CO2
H2O effect: < 1% with 1% H2O
Sample flow rate: Typically 1.5–2.5 LPM (0.6 LPM with low flow option)
Standard outputs: Voltage, current, RS-232 AK protocol, TCP/IP MODBUS and AK protocol
Sample temperature: 85–100°C
Oven temperature: 85°C standard, 100°C on request
Ambient temperature & humidity: 5–40°C operating range
Dimensions (HxWxD) & weight: 5.25 x 19 x 23 in / 45 lbs

Approvals & Certifications

• CE
• U.S. EPA compliance: 40 CFR Part 1065
• Conforms to UL STD 61010-1; Certified to CAN/CSA C22.2 No. 61010-1
• ECE R49-06 compliant

Technical specifications (summary)

• Model: 700 LX HCLD
• Measurement principle: Chemiluminescence (HCLD/CLD)
• Measuring ranges: 3–3,000 ppm FS (expandable)
• Measurement modes: NO, NOx, NO/NO2/NOx
• Detector: Photodiode
• Typical response: < 3 s to 90% FS
• Sample flow: 1.5–2.5 LPM (0.6 LPM option)
• Heated oven: for hot/wet sampling (85°C standard)
• Outputs: Voltage, current, RS-232, TCP/IP MODBUS, AK protocol
• Operating ambient: 5–40°C
• Dimensions/weight: 5.25 x 19 x 23 in / 45 lbs