User's Manual
Table Of Contents
- Table of contents
- 1 Warnings & Cautions
- 2 Notice to user
- 3 Customer help
- 4 Documentation updates
- 5 Important note about this manual
- 6 Parts lists
- 7 Quick Start Guide
- 8 A note about ergonomics
- 9 Camera parts
- 10 Screen elements
- 11 Navigating the menu system
- 12 Connecting external devices and storage media
- 13 Pairing Bluetooth devices
- 14 Configuring Wi-Fi
- 15 Handling the camera
- 16 Working with images
- 17 Working with thermal fusion and picture-in-picture image modes
- 18 Working with measurement tools
- 19 Fetching data from external Extech meters
- 20 Working with isotherms
- 21 Annotating images
- 22 Recording video clips
- 23 Changing settings
- 24 Cleaning the camera
- 25 Technical data
- 26 Dimensional drawings
- 26.1 Camera dimensions, front view (1)
- 26.2 Camera dimensions, front view (2)
- 26.3 Camera dimensions, side view (1)
- 26.4 Camera dimensions, side view (2)
- 26.5 Camera dimensions, 41.3 mm/15° lens, side view
- 26.6 Camera dimensions, 24.6 mm/25° lens, side view
- 26.7 Camera dimensions, 13.1 mm/45° lens, side view
- 26.8 Infrared lens (41.3 mm/15°)
- 26.9 Infrared lens (24.6 mm/25°)
- 26.10 Infrared lens (13.1 mm/45°)
- 26.11 Battery (1)
- 26.12 Battery (2)
- 26.13 Battery charger (1)
- 26.14 Battery charger (2)
- 26.15 Battery charger (3)
- 27 Application examples
- 28 Introduction to building thermography
- 28.1 Disclaimer
- 28.2 Important note
- 28.3 Typical field investigations
- 28.3.1 Guidelines
- 28.3.2 About moisture detection
- 28.3.3 Moisture detection (1): Low-slope commercial roofs
- 28.3.4 Moisture detection (2): Commercial & residential façades
- 28.3.5 Moisture detection (3): Decks & balconies
- 28.3.6 Moisture detection (4): Plumbing breaks & leaks
- 28.3.7 Air infiltration
- 28.3.8 Insulation deficiencies
- 28.4 Theory of building science
- 28.4.1 General information
- 28.4.2 The effects of testing and checking
- 28.4.3 Sources of disruption in thermography
- 28.4.4 Surface temperature and air leaks
- 28.4.5 Measuring conditions & measuring season
- 28.4.6 Interpretation of infrared images
- 28.4.7 Humidity & dew point
- 28.4.8 Excerpt from Technical Note ‘Assessing thermal bridging and insulation continuity’ (UK example)
- 29 Introduction to thermographic inspections of electrical installations
- 29.1 Important note
- 29.2 General information
- 29.3 Measurement technique for thermographic inspection of electrical installations
- 29.4 Reporting
- 29.5 Different types of hot spots in electrical installations
- 29.6 Disturbance factors at thermographic inspection of electrical installations
- 29.7 Practical advice for the thermographer
- 30 About FLIR Systems
- 31 Glossary
- 32 Thermographic measurement techniques
- 33 History of infrared technology
- 34 Theory of thermography
- 35 The measurement formula
- 36 Emissivity tables
10551803;a1
Figure 28.3 Distribution of resultant pressures on a building’s enclosing surfaces depending on wind effects,
ventilation and internal/external temperature difference. 1: Wind direction; T
u
: Thermodynamic air temper-
ature outdoors in K; T
i
: Thermodynamic air temperature indoors in K.
If the whole of the dynamic pressure becomes static pressure, then C = 1. Examples
of stress concentration factor distributions for a building with various wind directions
are shown in the figure on page 121.
The wind therefore causes an internal negative pressure on the windward side and
an internal positive pressure on the leeward side. The air pressure indoors depends
on the wind conditions, leaks in the building and how these are distributed in relation
to the wind direction. If the leaks in the building are evenly distributed, the internal
pressure may vary by ±0.2 p
stat
. If most of the leaks are on the windward side, the
internal pressure increases somewhat. In the opposite case, with most of the leaks
on the leeward side, the internal pressure falls.
120 Publ. No. T559598 Rev. a554 – ENGLISH (EN) – September 27, 2011
28 – Introduction to building thermography