brochure du sulfur dioxide monitor APSA-380 SO2

Sulfur Dioxide Monitor: APSA-380 SO2

For Your Needs in Air Quality Monitoring

Ultimate Performance

• Ultraviolet fluorescence technology provides excellent sensitivity, stability, and robustness
• Continuous online measurement with fast response
• Wide measurement range with up to 8 ranges selectable, minimum 0-0.05 ppm and maximum 0-20 ppm
• UV fluorescence detector and integrated HC cutter eliminate interference from moisture and coexisting components
• Incorporated UV lamp intensity compensator
• 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

Note: Standard specification is wired LAN connection. For wireless connection, a separate device is required.

User-Friendly Interface & Functionality

• Durable 7-inch wide color touch screen LCD with intuitive interface and trend graph
• Selectable metrics (ppb, ?g/m³, ppm, mg/m³), response time (moving average value), and calculation method
• User-configurable dilution ratio (e.g., dilution CEMS)
• Dust filter accessible from the front panel for easy daily maintenance

Module Design for Various Needs & Customizations

• A gas measurement module can independently provide measurement results
• Housing is customizable for stationary, wall mount, mobile, or portable installations
• Easy integration of multiple AP-380 measurement modules into air quality monitoring station or dilution continuous emission monitoring system (CEMS)

Reduced Operational Expense & Environment-Friendly Design

• Remote diagnostics allow fast and effective maintenance
• Internal parts timer with alarm facilitates timely parts replacement, optimizing parts stock
• Module design enables easy and fast replacement in the field
• High-quality, long lifetime parts for maximum uptime
• Remote operation reduces emissions from transportation, contributing to the reduction of carbon footprint
• Approx. 20% reduction in power consumption
• Long-life parts for reducing environmental load

Measurement Principle

The Ultraviolet Fluorescence (UVF) method utilizes the phenomenon of fluorescence, where substances absorb ultraviolet radiation and re-emit it as light. In the UVF-based sulfur dioxide (SO2) analyzer, the sample gas is introduced into a fluorescence cell. The SO2 in the sample gas absorbs UV radiation, gets excited, and emits fluorescence when returning to its ground state. The emitted fluorescence is selectively transmitted through an optical filter and detected by a photodetector to measure the concentration of SO2 gas. Several factors such as decreased light intensity of the ultraviolet light source and interference from gases other than the measured component (SO2) affect the accuracy of measurement. To compensate for the decreased intensity of the ultraviolet light source, the change in intensity of the light source is measured using a compensation photodetector, which automatically corrects the SO2 concentration. To reduce the fluorescence caused by interfering gases in the sample gas, aromatic hydrocarbons are removed by a unit called an HC cutter. The APSA-380 gas analyzer incorporates these measures to achieve high measurement accuracy and long-term stability.

APSA-380 Specifications

• Component: Sulfur dioxide (SO2)
• Measuring principle: Ultraviolet Fluorescence
• Measurement range: 0-0.05/0.1/0.2/0.5/1.0/5.0/10/20 ppm (up to 8 ranges selectable, auto-range)
• Lower Detection Limit (2?):< 0.3 ppb
• Measurement unit: ppb, µg/m³, ppm, mg/m³
• Sample gas flow rate: Approx. 0.6 L/min
• Repeatability: ±1.0% of full scale
• Linearity: ±1.0% of full scale
• Zero drift: < 0.5 ppb (24 h)
• Span drift: < 0.5% of full scale (24 h)
• Response time (T95): < 120 s from the inlet
• 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) DC4-20 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: With
• Sampling pump and filter: Internal
• Power supply: AC 100-240 V ±10% (max. voltage: AC 250 V), 50/60 Hz, consumption 50 W
• Dimensions, weight: 430 (W) x 568 (D) x 221 (H) mm, Approx. 18 kg
• Compliance: CE, UKCA, KC, FCC, China RoHS

For more information about measurement principle, please consult with us.

Dimensional Outline

Unit: mm

430 x 568 x 221

Rear Panel Configuration

1. Exhaust
2. Calibration gas inlet (option)
3. Sample gas inlet
4. AC power connector
5. I/O terminal block
6. USB flash drive connector
7. Ethernet connector
8. RS-232C connector

Options

• 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)

Under Certification: TÜV, US EPA, MCERT, CAEPI, KTL, JMOE

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.

?The specifications, appearance, or other aspects of products in this catalog are subject to change without notice.

?Please contact us with enquiries concerning further details on the products in this catalog.

?The color of the actual products may differ from the color pictured in this catalog due to printing limitations.

?It is strictly forbidden to copy the content of this catalog in part or in full.

?The screen displays shown on products in this catalog have been inserted into the photographs through compositing.

?All brand names, product names, and service names in this catalog are trademarks or registered trademarks of their respective companies.

HORIBA, Ltd. Group Head Office 2 Miyanohigashi-cho, Kisshoin, Minami-ku, Kyoto, 601-8510, Japan Phone: 81 (75) 313-8121 Fax: 81 (75) 321-5725 https://www.horiba.com

Bulletin: HRE-2900B Printed in Japan 2411SK00