5 - 5
LWIR
Thermal Imaging Camera
Installation Guide
5.5 Frame Settings
Frame Settings are applied to the entire area covered by the thermal image. To use
different settings for individual areas, you can set up Regions of Interest (ROI).
For details of ROI refer to Section 5.6.
The following options are available in the Frame Settings menu.
Item
Description
Emissivity
To measure temperature correctly with an infrared camera, the
Emissivity of the target must be known.
You can select a
Source
for the Emissivity:
•
Manual
- If you know the Emissivity of the area covered by the
thermal image, use the slider to set the required value, or type it
into the text-input box.
•
mA In
- with this option, you can use a current loop input to set
the emissivity value, where:
4 mA = 0.10 and 20 mA = 1.00
For more information on Emissivity, visit
www.ametek-land.com
.
Background
Temperature
The temperature of the area surrounding an object being measured
can have an effect on the temperature value calculated by the
thermal imaging camera e.g. if an object is inside a heated
chamber or furnace, the temperature of the furnace wall will affect
the reading.
You can select a
Source
for the Emissivity:
•
None
- no correction.
•
Manual
- If you know the Background Temperature of the area
covered by the thermal image, use the slider to set the required
value, or type it into the text-input box.
•
ROI
(1,2 or 3) - Uses the temperature of the ROI as the
background temperature.
•
mA In
- with this option, you can use a current loop input to set
the background temperature value, where:
4 mA = 0 °C and 20 mA = 2000 °C
•
Camera Ambient
- uses the ambient temperature of the LWIR
thermal imaging camera as the background temperature.
Содержание LAND LWIR
Страница 47: ......
