Description
The FLIR GF77 HR is a high-resolution, uncooled optical gas imaging (OGI) thermal camera engineered for precision gas leak identification and continuous thermal diagnostics. Built upon FLIR original engineering, the system utilizes a long-wave infrared (LWIR) uncooled microbolometer sensor with specialized spectral filtering centered between 9.5 µm and 12.0 µm. This design eliminates the maintenance overhead, cool-down latency, and mechanical failure risks inherent in cryogenically cooled OGI systems. Equipped with an ergonomic 180° rotating optical block, laser-assisted autofocus, and proprietary High Sensitivity Mode (HSM), the GF77 HR enables non-contact detection of invisible fugitive emissions across utility, chemical, and industrial refrigeration infrastructures.
TECHNICAL SPECIFICATIONS
Detector Type: Uncooled VOx Microbolometer
Spectral Range: 9.5 µm to 12.0 µm (HR Gas-Filtered Bandpass)
Thermal Resolution: 432 × 324 pixels (139,968 native measurement pixels)
Thermal Sensitivity (NETD): < 25 mK at +30°C
Image Frequency: 30 Hz
Standard Field of View (FOV): 24° × 18°
Spatial Resolution (IFOV): 1.0 mrad
Lens Identification: Automatic (FLIR AutoCal)
Focus Modes: Continuous Laser Distance Meter (LDM), One-Shot LDM, One-Shot Contrast, Manual
Object Temperature Range: -20°C to +500°C
Measurement Accuracy: ±2°C or ±2% of reading at +15°C to +35°C ambient
Digital Zoom: 1x to 4x continuous
Display: 4.0-inch 640 × 480 optically bonded LCD touchscreen with 160° viewing angle and auto-rotation
Visual Camera: 5 MP integrated digital camera with built-in LED torch
Image Modes: Infrared, Visual, MSX (Multi-Spectral Dynamic Imaging), Picture-in-Picture, High Sensitivity Mode (HSM)
Radiometric Video Recording: Real-time radiometric sequence (.csq) to SD card
Non-Radiometric Streaming: H.264 over Wi-Fi, MJPEG over USB Type-C and Wi-Fi
Communication Interfaces: USB Type-C (USB 2.0, DisplayPort video out, Power Delivery), Bluetooth (METERLiNK), Wi-Fi
Laser Pointer / Distance Meter: Class 2 semiconductor diode laser, 635 nm, < 1 mW
Battery Type: Rechargeable Lithium-ion (3.6 V, 6.0 Ah)
Battery Operating Time: > 3.75 hours continuous at +25°C
Charging System: In-camera charging or dual-bay external charger
Enclosure Rating: IP54 (IEC 60529)
Drop Specification: Engineered for 2.0 m drops
Operating Temperature Range: -15°C to +50°C
Storage Temperature Range: -40°C to +70°C
Shock and Vibration: 25 g (IEC 60068-2-27) / 2 g (IEC 60068-2-6)
Dimensions: 278 mm × 116 mm × 113 mm
Weight: 1.4 kg (with battery and standard lens)
GAS DETECTION PROFILE
Optimized for detection of long-wave absorbing gases including:
Sulfur Hexafluoride (SF6)
Ammonia (NH3)
Ethylene (C2H4)
Acetone
Ethyl Cyanoacrylate
Hexylene Glycol
Vinyl Ethers
Refrigerant Blends: R-134a, R-404A, R-407C, R-410A, R-507A
INDUSTRIAL APPLICATION & INTEGRATION
The GF77 HR is engineered for high-risk, uptime-critical environments. In high-voltage electrical substations and switchgear assemblies, it detects trace SF6 leaks across energized bushings, breaker seals, and gas manifolds from safe standoff distances, preventing dielectric breakdown without plant de-energization. In industrial refrigeration and cold storage facilities, the camera isolates toxic ammonia (NH3) leaks in compressor rooms and evaporator banks before concentrations breach permissible exposure limits (PEL).
PROCUREMENT & COMPLIANCE PARAMETERS
Original Engineering: Authentic Teledyne FLIR manufacturing with NIST-traceable factory calibration.
Technical Compatibility: Direct export into FLIR Thermal Studio Suite, FLIR Tools+, and enterprise EAM platforms for automated regulatory compliance workflows.
Lead Time: Typical lead time is 2 to 4 weeks ARO, dependent on destination export licensing and regional stock availability.
Key Attributes
Thermal color palettes: 6 Color Palettes
Thermal Image Pixel: 320 x 240 (76,800 pixels)
Thermal Sensitivity: <40 mk
Display resolution: 320 x 240
Field of View: 25° x 19°
Image Frequency: 30 Hz
Model Number: GF77
Brand Name: FLIR
Primary Gases Detected: Sulfur hexafluoride, ammonia, ethylene
Lens Spectral Range: 9.5 to 12 μm
Infrared Resolution: 320 x 240 (76,800 pixels)
Focal Length: 0.71" (18 mm)
F/number: 1.04
Focus Modes: Continuous LDM, One-shot LDM, One-shot contrast, Manual
Packaging and Delivery
Selling Units: Single item
Single package size: 56X42X26 cm
Single gross weight: 8.000 kg
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