brochure sur le hydrocarbon monitor APHA-380 CH4 NMHC THC

Hydrocarbon Monitor APHA-380 CH4 NMHC THC
For Your Needs in Air Quality Monitoring

Ultimate Performance

• Flame ionization detector with selective combustion provides excellent sensitivity, stability and robustness
• Simultaneously measures THC, CH4 and NMHC
• Continuous online measurement with fast response
• Single detector eliminates zero drift
• Wide measurement range with up to 5 ranges selectable, minimum 0-5 ppmC and maximum 0-100 ppmC
• Enhanced Lower Detection Limit

Connected & Intelligent

• Remote operation from various devices: PC, tablet or smartphone
• Modbus™ TCP and RTU communication
• USB flash drive for data storage

* Standard specification is wired LAN connection. For wireless connection, separate device is required.

User-Friendly Interface & Functionality

• Durable 7-inch wide color touch screen LCD with intuitive interface and trend graph
• Selectable response time (moving average value) and calculation method
• User-configurable dilution ratio (e.g., industrial gas production, exhaust gas THC monitoring)
• Dust filter accessible from the front panel for easy daily maintenance

Environment-Friendly Design

• Remote operation reduces emission from transportation, contributing to the reduction of carbon footprint
• Approx.10%* reduction in power consumption
• Lightweight design. Weight reduced on approx.15%*
• Long life parts for reducing environmental load

* In-house comparison with previous model.

Reduced Operational Expense & Maximum Uptime

• Remote diagnostics allow fast and effective maintenance
• Internal parts timer with alarm facilitates timely parts replacement, optimizing parts stock
• High-quality, long lifetime parts for maximum uptime

Hydrogen Generator H2 OPGU Series: Generates high-purity hydrogen gas by electrolysis of pure water. Does not require sodium hydroxide solution. Compact design.

Measurement Principle

Flame Ionization Detector (FID) Method with Selective Combustion: Flame Ionization Detector (FID) is a measurement method that relies on the ionization reaction triggered by a hydrogen flame. When hydrocarbons (HC) are introduced into a high-temperature hydrogen flame generated by a fuel (such as hydrogen) and an auxiliary combustion gas (air) at the tip of a jet nozzle, the hydrocarbons undergo oxidation, resulting in ionization reaction. By collecting and detecting these ions as electric current, the gas concentration of hydrocarbons can be measured. In the case of a multi-component gas analyzer measuring total hydrocarbons (THC), methane (CH4), and non-methane hydrocarbons (NMHC) in the sample gas, the FID is combined with a selective combustion mechanism. The selective combustion mechanism operates as follows: the sample gas is first introduced into the hydrogen flame to measure THC. Then, a NMHC-cutter is used to burn all hydrocarbons in the sample gas except for CH4, creating a gas mixture where the only remaining hydrocarbon is CH4. This gas mixture is subsequently introduced into the hydrogen flame for CH4 measurement. Finally, a mechanism is employed to introduce a zero-reference gas into the hydrogen flame to reduce zero drift. Through this process, THC and CH4 are measured using the FID, and the concentration of NMHC is calculated based on the difference between concentrations of TCH and CH4. By employing the above-mentioned mechanism, the APHA-380 achieves high measurement accuracy and enables the concentration measurement of multiple gases.

Specifications

• Component: Methane, non-methane hydrocarbons, total hydrocarbons (CH4, NMHC, THC)
• Measuring principle: Flame Ionization Detector Method (FID) with Selective Combustion
• Measurement range: 0-5/10/20/50/100 ppmC (up to 5 ranges selectable, auto-range)
• Lower Detection Limit (2?): < 0.02 ppmC*1
• Measurement unit: ppmC, ppm
• Sample gas flow rate: Approx. 0.8 L/min
• Repeatability: ±1.0% of full scale
• Linearity: ±1.0% of full scale
• Zero drift: < 0.025 ppmC (24 h)
• Span drift: < 0.5% of full scale (24 h)
• Response time (T95): < 40 s from the inlet*1
• Display: 7-inch color LCD with touch panel
• Communication: Ethernet × 2 (Modbus™ TCP), RS-232C × 1 (Modbus™ RTU), USB flash drive × 1
• Analog output (option): Maximum 3 channels (insulated) DC 4-20 mA, DC 0-0.1 V, DC 0-1 V, DC 0-5 V or DC 0-10 V
• Digital output (option): Relay contact output for range 3 channels, relay contact output for other 6 channels
• Digital input (option): Maximum 4 channels, non-isolated input
• Installation environment: Operation temperature 0-40°C (32-104°F), relative humidity 85% or less
• Temperature and pressure compensation: Yes
• Sampling pump and filter: Internal
• Power supply: AC 100-240 V±10% (max. voltage: AC 250 V) 50/60 Hz, consumption 230 W
• Dimensions, weight: 430 (W) x 568 (D) x 221 (H) mm, Approx. 26 kg
• Compliance: CE, UKCA, KC, FCC, China RoHS

*1: Digital filter

Options include: I/O terminal block (Analog input/output, digital input/output), pressurized calibration unit, flow sensor, USB flash drive, mounting parts (rubber feet, brackets and slide rails, brackets for slide rails).

The HORIBA Group adopts IMS (Integrated Management System) which integrates Quality Management System ISO9001, Environmental Management System ISO14001, and Occupational Health and Safety Management System ISO45001. We have now integrated Business Continuity Management System ISO22301 in order to provide our products and services in a stable manner, even in emergencies.

Please read the operation manual before using this product to assure safe and proper handling of the product.

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