The Optris Bottom-Up Glass Inspection System (GIS) provides a revolutionary solution for accurate thermal monitoring in the manufacturing of modern Low-E (low-emissivity) glass. This innovative system directly solves the primary challenge in the tempering process: traditional infrared sensors cannot reliably measure the coated, highly reflective surface of Low-E glass as it exits the furnace, leading to inconsistent quality and process inefficiencies.
The GIS elegantly overcomes this by redefining the measurement perspective. It utilizes rugged PI 450i G7 infrared cameras, specifically calibrated for a 7.9 µm wavelength, and positions them beneath the production line. This strategic placement enables the system to monitor the uncoated, high-emissivity side of the glass, delivering precise, reliable temperature data from 150 °C to 1500 °C. The compact thermal cameras are designed for industrial resilience, operating reliably in ambient temperatures up to 70 °C without requiring additional cooling.
The system ensures continuous, line-scanning thermal monitoring for complete process oversight. It is further protected by an integrated CTlaser 4M ultra-fast pyrometer and Digitally Controlled Lens Protection (DCLP), which instantly safeguards the camera optics in the event of glass breakage. Delivered as a pre-installed, pre-assembled, and easy-to-use turnkey solution, the GIS (Glass Inspection System) includes powerful, license-free software for straightforward operation and can be seamlessly integrated into existing glass tempering lines.
Developed, precision-calibrated, and quality-tested in Germany, the Optris GIS Bottom-Up system guarantees unmatched accuracy and reliability. It enables superior temperature control, directly resulting in improved product quality, reduced waste, and enhanced production efficiency for advanced Low-E glass manufacturing.
Bottom-Up GIS 450i G7 - Glass Inspection System for Glass Tempering - Important Features:
- Line scan function for tempering processes
- Thermal images of glass beads right up to large panes
- Precise temperature measurements of glass surfaces
- High ambient temperature rating of 70°C
- Glass area calculation
- Integrated ultra-fast glass breakage detection combined with digitally controlled lens protection system (DCLP)
| MODEL | BUGIS 450i G7 53°x38° | BUGIS 450i G7 80°x54° |
| DETECTOR | |
| Optical resolution | 382×288 pixels |
| Pixel pitch | 17 µm |
| Detector | Uncooled bolometer |
| Spectral Range | 7.9 µm |
| Optical Filter | Integrated |
| Frame rate | 80 Hz (switchable to 27 Hz) |
| OPTICAL | |
| Field of View | 53°x38° | 80°x54° |
| Focal length [mm] | 7.7 mm | 5.7 mm |
| F Number | 0.9 | 0.9 |
| Optical Resolution | 126:1 | 79:1 |
| Minimum Distance to Target | 250 mm | 200 mm |
| Interchangeable optics | Yes |
| MEASUREMENT | |
| Object Measurement Range | 200 °C… 1500 °C
150 °C… 900 °C
(Sighting range 0 °C … 250 °C) |
| Accuracy | ±2 °C or ±2 %, whichever is greater |
| Thermal Sensitivity (NETD) *6) | 150 mK |
| Smallest detectable Spot Size IFOV: 1 pixel | 0.6mm | 0.9mm |
| Smallest measurable Spot Size MFOV | 1.8mm | 2.7mm |
| Measurement Field of View (MFOV) | 3×3 pixels |
| Warm-up time | 10 min |
| Emissivity /Transmissivity/ Reflectivity | adjustable: 0.100…1.100 |
| INTERFACES | |
| Interface | Ethernet over USB GigE (PoE) interface |
| Supported Protocols | Ethernet (max. 1000 Mbit/s) |
| Compatible Software | PIXConnect, ConnectSDK, EasyAPI, ExpertAPI |
| IMAGE PROCESSING | |
| Configuration | via PIXConnect |
| Operation | computer-enabled |
| Capabilities | For Measurements on Glass, Measure Areas of Interest, Linescanner, EventGrabber, Merger, Alarming, Comparison Functions, Temperature-Time Diagrams, Temperature Profiles, Recording & Playing, Triggering |
| GLASS BREAKAGE SENSOR – DETECTOR | |
| Detector | InAsSb |
| Measurement Principle | Single Color |
| Spectral Range | 2.2 – 6 μm |
| Response Time | 300 μs (90 % signal) |
| Exposure Time | 90 μs (90 % signal) |
| Sampling Frequency | 11000 Hz |
| Sensing Head Exchangeable | N/A |
| GLASS BREAKAGE SENSOR – OPTICAL | |
| Distance to Spot ratio (D:S) | 30:1 |
| Spot size (SF optics) | 36.7 mm at 1100 mm |
| Smallest spot (CF optics / add. CF lens) | 2.4 mm at 70 mm |
| Distance | independant |
| GLASS BREAKAGE SENSOR – SIGHTING | |
| Sighting | Double laser |
| GLASS BREAKAGE SENSOR – MEASUREMENT | |
| Object Measurement Range | 0 °C … 500 °C |
| Accuracy 2) | ±(0.3 % TMeas +2 °C) |
| Repeatability 2) | ±(0.1 % of reading +1 °C) |
| Temperature Coefficient 3) | ±0,05 K/ K or ±0,03 %/ K |
| Thermal Sensitivity (NETD) | 180 mK |
| Warm-up time | none |
| Emissivity /Transmissivity/ Reflectivity | 0.100 – 1.100 |
| Slope | N/A |
| GENERAL | |
| Shutter Size | 116 x 57 x 121 mm |
| Cabinet Size | 400 x 200 x 155 mm |
| Housing Material | Stainless Steel |
| Weight | 13 kg (complete system) |
| Focus | fixed |
| Country of Origin | Germany |
| ENVIRONMENTAL & CERTIFICATIONS | |
| Operating Temperature Range | 0…70°C |
| Storage Temperature Range | -40…85 °C |
| Relative humidity | 10 – 95 %, non condensing |
| Protection Class | IP 65 |
| EMC | 2014/30/EU |
| Shock | IEC 60068-2-27 (25 G and 50 G) |
| Vibration | IEC 60068-2-6 (sinus shaped)
IEC 60068-2-64 (broadband noise) |
| Standards | CE, UKCA, RoHS |
| POWER | |
| Power Supply | 100-230 VAC / 24 VDC |
| Current Draw | 3A |
| ACCESSORY | |
| Shutter for IR Camera | Included |
| Shutter for Reference Pyrometer | Included |
| Cabinet | Included |
| Remote control | Included |
| | |
| Part number | OPTBUGIS45IG7O53 | OPTBUGIS45IG7O80 |
| Additional Remarks | 1) 90% energy
2) at ambient temperature 23 ± 5°C, object temperature > 0°C ;
3) for ambient temperatures <18°C and >28°C; whichever is greater
4) 90% value
5) diameter of measured area
6) Accuracy statement effective from 150 °C |
- Pre-assembled system for easy installation on glass tempering furnaces
