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Application Story
Methane Gas Leak Detection and Monitoring at LNG Pressure Regulation Facilities Using Flir OGI Cameras and AI
Read the storyGF77a
Uncooled Fixed Optical Gas Imaging Camera
Product Variations
The FLIR GF77a is an affordable, uncooled fixed optical gas imaging camera designed for continuous, autonomous gas leak monitoring. It is available in two model variants: the GF77a-LR, that visualizes methane, and the GF77a-HR, that visualizes ammonia and ethylene emissions. Small and lightweight, the Flir GF77a is packed with FLIR-patented features, such as High Sensitivity Mode (HSM), for improved gas visualization. The GF77a can help oil and gas companies maintain valuable capital equipment, avoid product loss, meet emissions reduction metrics, and ensure safer work practices. The GF77a also comes in a GF77f variant that includes environmental housing for harsh environments and GF77pt for pan/tilt controls.
Keep Watch Without Standing Watch
Offers industry-leading features for continuous monitoring applications including High Sensitivity Mode, remote motorized focus, and open architecture for third-party integration.
Spectrally-filtered to detect methane gases, improving worker safety and leak location identification with fewer in-person inspections.
RTSP and GigE compliant, the GF77a offers flexibility to meet many industrial communication needs and connects to a network for continuous leak detection.
Specifications
| Highlighted | |
|---|---|
| IR Resolution | 320 × 240 (76,800) pixels |
| Focal Plane Array (FPA) - Effective pixels | FLIR GF77a-LR: Uncooled microbolometer / 7 - 8.5 µm
FLIR GF77a-HR: Uncooled microbolometer / 9.5 - 12 µm |
| Thermal Sensitivity/NETD | < 25 mK at 30°C (86°F) |
| Spectral Range | FLIR GF77a-LR: 7 to 8.5 µm
FLIR GF77a-HR: 9.5 to 12 µm |
| Interface | Web: Yes |
| Imaging & Optical | |
|---|---|
| Contrast Enhancement | RTSP: FSX®, histogram equalization (IR only) |
| Detector Pitch | 25 µm |
| Detector Type | Uncooled microbolometer |
| Field of view (FOV) | FLIR GF77a-LR 25° lens: 25° × 19°, 6° lens: 6.4° × 4.9°
FLIR GF77a-HR 25° lens: 25° × 19° |
| Focal Length | FLIR GF77a-LR 25° lens: 18 mm, 6° lens: 74 mm
FLIR GF77a-HR 25° lens: 18 mm |
| Focal Plane Array (FPA) - Effective pixels | FLIR GF77a-LR: Uncooled microbolometer / 7 - 8.5 µm
FLIR GF77a-HR: Uncooled microbolometer / 9.5 - 12 µm |
| Focal Plane Array (FPA) - Spectral range | Uncooled microbolometer/7 – 8.5 µm |
| Focus | One-shot contrast, motorized, manual |
| Gas Sensitivity [NECL] | GF77a-LR (7 - 8.5µm) CH4: ≤100 ppm × m N2O: ≤75 ppm × m C3H8: ≤400 ppm × m SO2: ≤30 ppm × m R-134a: ≤20 ppm × m R-152a: ≤100 ppm × m (ΔT = 10°C, Distance = 1 m) GF77a-HR (9.5 - 12µm) C2H4: ≤20 ppm × m NH3: ≤20 ppm × m (ΔT = 10°C, Distance = 1 m) |
| Image Frequency | 30 Hz |
| Image Source | Visual / IR / MSX |
| Image Streaming Formats | See Video/Radiometric streaming RTSP and GVSP tables. |
| Image Streaming Resolution | See Video/Radiometric streaming RTSP and GVSP tables. |
| IR Resolution | 320 × 240 (76,800) pixels |
| Lens Identification | Automatic |
| Minimum Focus Distance | FLIR GF77-LR 25° lens: 0.3 m (0.98 ft), 6° lens: 5 m (16.4 ft)
FLIR GF77-HR 25° lens: 0.3 m (0.98 ft) |
| Overlay | Image Source 0: RTSP Protocol: with, without; GVSP (GigE Vision) Protocol, with, without, |
| Pixel Format | Mono 16 |
| Resolution | REST API: 640 × 480 pixels, 1280 × 960 pixels Web UI: 640 × 480 pixels |
| Spatial resolution (IFOV) | 1.4 mrad/pixel |
| Spectral Range | FLIR GF77a-LR: 7 to 8.5 µm
FLIR GF77a-HR: 9.5 to 12 µm |
| Streaming Resolution | 640 × 480 pixels |
| Thermal Resolution [NETD] | <25 mk at 30°C (86°F) |
| Thermal Sensitivity/NETD | < 25 mK at 30°C (86°F) |
| Video Lamp | Built-in LED light |
| Visual Focus and FOV | Fixed, 67.2° diagonal |
| Visual Resolution | 2592 × 1944 pixels |
| Measurement & Analysis | |
|---|---|
| Accuracy | ±5°C (±9°F) for ambient temperature 15°C to 35°C (59°F to 95°F) and object temperature above 0°C (32°F) |
| Atmospheric transmission correction | C |
| Correction Options | Atmospheric, optics transmission, emissivity, reflected apparent temperature, external optics/window |
| Emissivity Correction | C |
| External Optics & Windows Correction | C |
| Measurement Corrections | Global object parameters |
| Object Temperature Range | -20°C to 70°C (-4°F to 158°F) |
| Optics Transmission Correction | Automatic, based on signals from internal sensors |
| Primary Gases Detected | GF77a-LR (7 - 8.5µm): Methane, nitrous oxide, propane, sulfur dioxide, R-134a and R-152a
GF77a-HR (9.5 - 12µm): Sulfur hexafluoride, ammonia, ethylene |
| Reflected apparent temperature correction | C |
| Communication & Data Storage | |
|---|---|
| Connection Type | Wi-Fi: Peer to peer (ad hoc) or infrastructure (network) |
| Connector | Pan/tilt control: M8 A-coded, male; Wi-Fi: Female RP-SMA (Pan/Tilt is an optional feature) |
| Digital I/O connector type | M12 Male 12-pin A-coded (shared with ext. power) |
| Digital I/O isolation voltage | 500 VRMS |
| Digital input purpose | NUC NUC disable Image tag (Start, Stop, General) Image flow control (acc. SFNC 2.3) Single frame (on trigg) Multi-frame (on trigg) Continuous Frame rate ROI |
| Digital Inputs | 2x opto-isolated, Vin (low) = 0 - 1.5 V, Vin (high) = 3-25V |
| Digital Output Purpose | Programmatically set, Fault (NC) |
| Digital Outputs | 3x opto-isolated, 0–48 VDC, max. 350 mA (derated to 200 mA at 60. Solid-state opto relay, 1x dedicated as Fault output (NC) |
| Encoding | Video streaming – RTSP Protocol: H.264 / MPEG4 / MJPEG; GVSP: Uncompressed Radiometric streaming – RTSP Protocol: Compressed JPEG-LS, FLIR radiometric; GVSP: Uncompressed, signal linear, temperature linear, FLIR radiometric |
| Ethernet Communication | GigE Vision ver. 1.2, Client API GenICam compliant, TCP/IP socket-based FLIR proprietary |
| Ethernet Connector Type | M12 8-pin X-coded, female |
| Ethernet Image Streaming | Yes |
| Ethernet Interface | Wired |
| Ethernet Power | Power over Ethernet, PoE IEEE 802.3af class 3 |
| Ethernet Protocols | IEEE 1588, SNMP, TCP, UDP, SNTP, RTSP, RTP, HTTP, ICMP, IGMP, sftp (server), FTP (client) SMTP, DHCP, MDNS (Bonjour), uPnP |
| Ethernet Standard | Pan/Tilt: Pelco D| Wi-Fi: iEEE 802.11a/b/g/n |
| Ethernet Type | 10/100Base-T |
| Interface | Web: Yes |
| Multicast | RTSP Protocol, GVSP (GigE Vision) Protocol |
| Serial Communication | Pan/tilt control: RS232 and RS485 exclusively |
| Unicast | RTSP: Yes
GVSP (GigE Vision): Yes |
| WiFi | Wi-Fi standard – IEEE802.11a/b/g/n |
| General | |
|---|---|
| Housing material | Aluminum |
| Package Includes | Thermal camera in protective housing Extra cable glands for auxiliary cables Printed documentation including the username and password for log in to the web interface of the camera |
| Packaging Size | 645 × 207 × 225 mm (25.4 × 8.15 × 8.86 in) |
| Packaging Type | Cardboard box |
| Packaging Weight | 6.8 kg (15.0 lb) |
| Pan/Tilt | Optional feature; Control standard – Pelco D |
| Size [L × W × H] | 123 × 77 × 77 mm (4.84 × 3.03 × 3.03 in) |
| Weight | 0.82 kg (1.8 lbs) |
| User Interface | |
|---|---|
| Web interface | Yes |
| Power | |
|---|---|
| External Power Operation | Compatible with IEEE 802.3af, IEEE 802.3at/PoE Plus |
| External Voltage | Allowed range 18-56 VDC, 8 W max |
| General | PoE or external |
| Power Consumption | 6.8 W at 24 V DC typical 7.0 W at 48 V DC typical 7.3 W at 48 V PoE typical |
| Environmental & Certifications | |
|---|---|
| Corrosion | Salty fog resistance: ISO9227, to 1000 hours |
| EMC | EN 55032:2015 Emission Requirements EN 55035:2017 Immunity Requirements FCC – Title 47 CFR Part 15:2019 ICES-001 Issue 4:2014 |
| Encapsulation | IP 54 (IEC 60529) IP66 with accessory |
| Humidity (Operating and Storage) | Relative humidity: from 5% up to 95% |
| Operating Temperature | –30 to 50°C (–22 to 122°F) |
| Storage Temperature Range | IEC 68-2-1 and IEC 68-2-2, –40 to 70°C (–40 to 158°F) for 16 hours |
| Warranty | http://www.flir.com/warranty/ |
Accessories
Resources & Support
Datasheet
GF77a Datasheet A4
Datasheet
GF77a Datasheet
Brochure
FLIR CARE and FLIR PROTECT Service and Extended Warranty Packages Brochure
Datasheet
FLIR CARE and FLIR PROTECT Service and Extended Warranty Packages Datasheet
Warranty
FLIR Global Uncooled Thermal Camera 2-10 Limited Warranty
Chat
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Phone
Local Number:
+91-11-4560 3555
Service, Repair and Calibration
Service Center Contact |
Phone |
Request Service, Repair, or Calibration |
Email Us |
|---|---|---|---|
| United States |
Toll Free: (+1) 866 477 3687 Local: (+1) 603 324 7600 |
||
| Canada | 800 613 0507 | Submit an RMA | |
| South & Central America | 0800 878 2486 |
Service Center Contact |
Phone |
Request Service, Repair, or Calibration |
Email Us |
|---|---|---|---|
| Belgium | +32 (0)56 363 041 | ||
| Estonia | +3726063976 | ||
| Germany | +49 (0) 69 95 00 900 | ||
| Italy | +390294753491 | ||
| Sweden | +46 (0) 8 753 26 54 | ||
| United Arab Emirates | +971 4 802 4999 | ||
| United Kingdom | +44 (0)1732 220 011 |
Service Center Contact |
Phone |
Request Service, Repair, or Calibration |
Email Us |
|---|---|---|---|
| Australia | +61 (0) 3 9550 2800 | ||
| China | +86 (0) 21-5169-7628 | ||
| India Delhi | +91 11 47212002 | ||
| India Faridabad | +91 (129) 431-5031/32 | ||
| Japan | 81-3-6721-6648 | ||
| Singapore | +65 8787 0884 | ||
| South Korea | (02)565-2724 |
Export Restrictions
The information contained in this page pertains to products that may be subject to the International Traffic in Arms Regulations (ITAR) (22 C.F.R. Sections 120-130) or the Export Administration Regulations (EAR) (15 C.F.R. Sections 730-774) depending upon specifications for the final product; jurisdiction and classification will be provided upon request.
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