Operating Manual
Normal Mode
‘Normal Mode’ is automatically selected when viewing
low to medium ambient temperature scenes and/or
when any hot objects in the scene are either below
approximately 300 °C, or are very small.
In this mode the thermal imager’s sensitivity is
optimised to maximise the clarity of the lower-
temperature parts of the scene, enabling crystal-clear
imaging of the ambient scene as well as displaying
small, localised hotspots up to 500
o
C without
saturation.
1000+ Mode
‘1000+ Mode’ is automatically selected when viewing
extreme heat conditions, for example, in flash over
situations or other extreme emergency situations
where safety could be compromised.
In this mode the dynamic range is set to maximum to
provide clear imaging of scene temperatures in excess
of 1000
°
C without saturation, designed to allow easy
analysis of structures and other hot/burning materials
while retaining excellent visibility of low-temperature
background detail to facilitate rapid egress.
4.7
Colour Reference Bar
The graduated scale colour palette provides a visual
indication of the range of scene temperatures
detected, enabling rapid recognition of hot spots.
The Colour Reference Bar (right) is displayed on the
right-hand edge of the screen and provides a point of
reference for the user to quickly identify the different
temperature ranges in the scene.
4.8
Direct Temperature Measurement
The Direct Temperature Measurement (DTM) feature gives a temperature readout of a fixed point on
the screen. The DTM feature is accurate to ±5 °C for 0 °C - 100 °C, and ±10% for 101 °C - 1000 °C.
Information
The measured temperature is based on an assumed target emissivity of 0.95.
The measurement indicated is not a measure of air temperature.
Unless otherwise specified at the time of order, the unit of measurement (i.e Celsius or
Fahrenheit) is preset at the factory to the normal standard for the designated country.
In order to obtain an accurate measurement of a hot object in a scene, the thermal imager may
switch between different sensitivity modes. This is completely normal.
© Copyright 2011, Infrared Systems Group Ltd.
Page 17 of 34
While ISG Infrasys has taken care to ensure the accuracy of the information contained herein, it accepts no responsibility for
the consequences of any use thereof and reserves the right to change the specification of goods without notice.
