The ABB GLA133 Series UAV-Microportable Analyzer is a specialized instrument designed for gas concentration measurements, particularly in ambient air, and is suitable for integration with Unmanned Aerial Vehicles (UAVs). It utilizes Off-Axis Integrated Cavity Output Spectroscopy (OA-ICOS) technology, which enhances sensitivity and signal-to-noise ratio compared to conventional laser sensors.
Function Description:
The analyzer measures gas concentrations in parts per million (ppm) and provides real-time operational status. It is capable of measuring various gases, including CH4, H2O, CO2, CH4 (Dry), and CO2 (Dry), with specific models optimized for different gas types (e.g., GLA131-GGA, GLA131-GPC/CH4). The device is designed for microportable applications, making it suitable for deployment on UAVs for environmental monitoring and other field applications.
Important Technical Specifications:
- Physical Dimensions: Length: 33.96 cm (13.37 in) x Width: 22.45 cm (8.84 in) x Height: 10.61 cm (4.18 in).
- Physical Weight: 3 kg (6.6 lbs) max.
- Power Source: External DC power supply via 120/240 V AC outlet or UAV batteries.
- Power Input: 11-30 V DC. 35 W (GLA131-GGA) or 27 W (GLA131-GPC/CH4).
- Operating Current: 5 A (max.).
- Fuse: 5 A / 32 VDC automotive fuse, Fast-blow fuse.
- Altitude: 2000 m (6562 ft).
- Operational Temperature: 5 to 45 °C (41 to 113 °F).
- Non-Operational Temperature: 4 °C to 50 °C (40 °F to 122 °F).
- Humidity: <99%, non-condensing.
- Relative Humidity (Operational): Below the dew point for the area, avoiding condensation on surfaces.
- Maximum Impact Force Allowable: <10 G.
- Installation Category: II.
- Pollution Degree: 2.
- Measurement Accuracy: +/- 1% of NIST Traceable Gas Standards.
- Sampling Rate: 0.01-10 Hz.
- Laser Classification: Class 1 laser product when the case cover is closed; Class 3B when exposed (laser rated > 5 mW).
- Data Storage: Solid-state drive (SSD) for data files.
Usage Features:
The analyzer offers a comprehensive user interface accessible via a web browser, allowing for remote control and data management.
- Communication:
- WiFi: Connects to external antenna for wireless communication. The analyzer broadcasts an SSID (RUT240_xxxx) and requires a password for access.
- VNC Viewer: Allows wireless remote-control connection for a graphical user interface. VNC server requires a one-time activation via SSH for security.
- SSH: For remote shell login using IP address and SSH password.
- Samba: For sharing the data directory on the network.
- USB Ports: For data transfer to a USB memory device or connecting a USB keyboard and mouse.
- COM/POWER OUT Connector: D-SUB 15-pin connector for digital input/output and external devices (e.g., anemometer, auto pilot).
- Display Modes:
- Numeric Display: Default screen showing real-time gas concentration measurements (e.g., CH4, H2O, CO2) in ppm, with auto-adjusting resolution units. Includes color-coded operational status.
- Spectrum Display: Provides detailed information on measured gas, analyzer sensitivity, absorption levels, theoretical fit to target gases, and ringdown time (indicating mirror cleanliness).
- Timechart Display: Shows absorption of sample gas over time, with a black line representing measured concentrations at a customizable interval rate.
- Alarm Status Display: Indicates real-time operational status using a traffic-light color system (Green: no problem, Yellow: out-of-spec/maintenance soon, Red: problem/immediate maintenance).
- Data Management:
- File Transfer Menu: Allows transfer of data files from the analyzer's SSD to a USB storage device.
- Directory Types: Organizes data into "Daily" (daily folders) and "Archive" (zipped daily folders) directories on the local hard drive.
- File Output: Configurable timestamp format for data files and new file creation intervals.
- Security: User management features allow changing passwords for VNC, SSH, and Samba, adding/deleting users, and assigning them to Admin, Service, or User groups. The "Set OA-ICOS Default Data" feature can reset passwords, remove all measurement data and users, and disable the VNC server, useful for decommissioning.
- Calibration: Supports single-point calibration using a known reference standard gas connected to the analyzer's gas inlet.
- Laser Adjust: Manual fine-tuning of laser wavelength for goodness of fit (GOF).
- Serial Logger: Configures data reporting at RS-232 ports, including baud rate, parity, stop bits, data bits, and timeout. Supports active listeners for ICOS, ANEMOMETER, or DJI (MAVLINK) data streams.
- Analyzer Shutdown: Soft shutdown initiated via the Control Bar.
Maintenance Features:
- Preventive Maintenance:
- Daily Operation Checklist: Regularly verify spectrum correctness, monitor transmitted intensity (indicative of mirror cleanliness), and log analyzer pressure (indicative of flow system obstructions or pump failure).
- Laser Offset Adjustment: Check and adjust every 3-6 days.
- Recommended Maintenance:
- OA-ICOS Mirror Cleaning: Recommended when health metrics suggest it.
- Inline Particulate Filter Replacement: Recommended when health metrics suggest it.
- Solid-State Drive (SSD) Disk Space Management: Monitor and manage disk space.
- Cleaning:
- Exterior Casing: Wipe with a damp cloth.
- Fuse Replacement: Instructions provided for replacing the 5 A fuse.
- Analyzer Cover Maintenance: The shroud is designed to minimize weight and protect components. Any issues with the shroud require contacting ABB service.
- Spare Parts and Kits: Available for purchase, including Mirror Cleaning Kit, Spare Parts Kits (pump, filters, pressure controller), Spare Filters, Spare Analyzer Shroud, and Spare Router.
- Service and Support: ABB provides worldwide product support. Service must be performed by certified personnel. The analyzer has a magnetic interlock switch that disables the laser when the cover is opened, preventing exposure to Class 3B laser radiation. Bypassing this interlock is dangerous and not recommended.
- Shipping: Detailed instructions for packaging and shipping the analyzer back to ABB for service, including obtaining an RMA form, disconnecting connections, covering the gas inlet, and proper packing.
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