Customizable wide measuring range
Select 0–2%, 0–5%, 0–10% or 0–100% Vol according to the target hydrogen concentration and process.
Product ImageRD330 Online Hydrogen Analyzer
ONLINE HYDROGEN ANALYZER
RD330 Online Hydrogen Analyzer
Customizable wide-range measurement•Thermal conductivity sensing•Temperature and pressure compensation•Local display
Measuring range0–2 / 5 / 10 / 100% Vol (customizable)
Maximum allowable error+0.1% Vol (<5% Vol); ±2% F.S. (>5% Vol)
Resolution0.01% Vol
Response time≤30 s
OutputsRS-485; 4–20 mA; 2 alarm relays
ProtectionEx db IIC T6 Gb; IP65
HOW THE PRODUCT WORKS
Continuous hydrogen monitoring for industrial processes
The RD330 Online Hydrogen Analyzer is an industrial instrument for continuous hydrogen concentration monitoring. It uses a high-precision thermal conductivity sensor and offers configurable measuring ranges of 0–2%, 0–5%, 0–10% or 0–100% Vol. Temperature and pressure compensation support measurement stability across process conditions, while the local display provides an on-site reading.
For integration with plant control and alarm systems, the RD330 provides 4–20 mA and RS-485 outputs, plus two configurable relay alarm outputs. Its sample pretreatment inlet is specified for 0.1–10 MPa, while pressure at the sensing unit is below 0.1 MPa. The analyzer is designed for wall mounting and is specified with Ex db IIC T6 Gb explosion-proof marking and IP65 protection.
Configure the analyzer for your process
For a project review, share the required hydrogen range, gas composition, sample pressure, pretreatment needs, power supply option, control-system interface and alarm set points. The measurement error differs by concentration range, so include the expected operating range when requesting a quotation. This information helps size an online hydrogen concentration analyzer for the target process range and interfaces.
Key product features
Thermal conductivity measurement
A high-precision thermal conductivity sensor measures hydrogen concentration for online monitoring.
Range-specific measurement accuracy
The listed maximum error is +0.1% Vol below 5% Vol and ±2% F.S. above 5% Vol; confirm the expected operating range during selection.
Temperature and pressure compensation
Built-in temperature compensation and atmospheric-pressure compensation support measurement accuracy under changing conditions.
Local display and remote integration
An LCD provides local readings; RS-485, 4–20 mA and two configurable relay outputs support connection to control and alarm systems.
Industrial enclosure and mounting
The wall-mounted analyzer is specified with Ex db IIC T6 Gb marking and IP65 protection. Confirm project certification and installation requirements.
APPLICATIONS
Typical applications
Water electrolysis hydrogen production
Monitor hydrogen concentration in electrolyzer and production process streams.
Hydrogen-natural gas blending
Support online concentration monitoring in industrial gas blending systems.
Ammonia cracking and methanol reforming
Monitor hydrogen production processes and related process gas streams.
Fuel-cell system test benches
Provide online hydrogen measurement for fuel-cell testing and production systems.
Energy storage stations
Integrate hydrogen concentration monitoring into energy-storage process and safety systems.
Steel and petrochemical processes
Review the analyzer for hydrogen monitoring in industrial metallurgy and petrochemical applications.
RD330 Online Hydrogen Analyzer technical specifications and integration requirements
| Parameter | Specification |
|---|---|
| Model | RD330 |
| Measured gas | Hydrogen (H₂) |
| Detection principle | Thermal conductivity |
| Measuring range | 0–2%, 0–5%, 0–10% or 0–100% Vol; range customizable |
| Maximum allowable error | +0.1% Vol at <5% Vol; ±2% F.S. at >5% Vol |
| Resolution | 0.01% Vol |
| Response time | ≤30 s |
| Sample pressure | Pretreatment system inlet: 0.1–10 MPa; sensing unit: <0.1 MPa |
| Output mode | RS-485 bus; 4–20 mA, three-wire |
| Relay output | 2 alarm outputs; alarm points configurable |
| Power consumption | 40 W at 24 VDC; 50 W at 220 VAC |
| Power supply | 24 ±2 VDC or 220 ±22 VAC |
| Operating temperature | −10 to +40 °C |
| Operating humidity | ≤90% RH |
| Explosion-proof marking | Ex db IIC T6 Gb |
| Protection rating | IP65 |
| Installation | Wall-mounted |
| Dimensions | 646 × 450 × 198 mm (L × W × H) |
Confirm the measuring range, output, power supply, and process conditions for your application when requesting a quotation.
What to include in your inquiry
For a project-specific RD330 Online Hydrogen Analyzer quotation and application review, share your target measurement range, gas composition, operating temperature and humidity, pressure, installation method, required signal output, and project location. This helps our team assess the right configuration for your hydrogen monitoring or gas analysis system.
Send your application detailsFAQ
Frequently asked questions about RD330 Online Hydrogen Analyzer selection and applications
Find guidance on RD330 Online Hydrogen Analyzer measuring range, installation, operating conditions, and integration with hydrogen monitoring systems.
What measuring ranges can be configured for the RD330?
The listed options are 0–2%, 0–5%, 0–10% and 0–100% Vol, with ranges customizable for the application.
How does the RD330 measure hydrogen?
It uses a high-precision thermal conductivity sensor with temperature and pressure compensation.
What accuracy should I expect across the range?
The reference lists +0.1% Vol below 5% Vol and ±2% F.S. above 5% Vol. Confirm the expected operating range and required specification for your project.
Which signals are available for system integration?
The analyzer lists RS-485, three-wire 4–20 mA and two configurable relay alarm outputs.
What sample pressure and utilities should be confirmed?
The pretreatment inlet pressure is listed as 0.1–10 MPa and sensing-unit pressure below 0.1 MPa. Confirm sample conditioning and whether 24 VDC or 220 VAC is required.
What information should I include in an inquiry?
Share the target range, gas composition, sample pressure, pretreatment needs, power option, required output, alarm points, installation location and project application.
Discuss RD330 Online Hydrogen Analyzer for your application
Send your operating conditions and project requirements for a technical review and quotation.
Contact the Sales Team