Optex THERMO-HUNTER BUILT-IN Instruction Manual page 13

TECH
○ ：
TECH/ Teach mode
TECH
E1. 0 0

Error indication
An error is displayed when the set item or input value is incorrect.
Perform the procedures below when an error is displayed.
Err1
In the TECH mode, if the automatically calculated emissivity rate is outside the
setting range (0.1 to 1.2), an error (Err1) occurs. In this case, the emissivity rate
E
cannot be set in the TECH mode. Set it in the ε mode again.
Err2
In the TECH mode, if the temperature measurement value calculated with the
automatically calculated emissivity rate is outside the measurement temperature
E
range, an error (Err2) occurs. In this case, the emissivity rate cannot be set in
the TECH mode. Set it in the ε mode again.
E
ε
○ ：
/ Emissivity mode
E
E1. 0 0
Emissivity rate (ε)
The emissivity rate is the rate of energy emitted from the surface of an object. Every object has
a unique emissivity rate which is variable according to the surface condition and temperature
of the object. This product allows for setting a desired emissivity rate, which can enable even
more precise measurement by adjusting the emissivity rate according to that of the target.
An object with low emissivity rate (e.g. a shiny metallic object) refl ects the surrounding
temperature since it is highly refl ective. If the surrounding objects have greatly different
temperature from that of the main unit, their temperatures are refl ected resulting in incorrect
measurement. Therefore it is necessary to block out such effect.
The maximum emissivity rate is normally 1.00, but this unit is designed to accept up to 1.20 for
practical convenience.
150
150
(1) Press the ENTER button in the Teach mode after confi rming the target
is aimed suffi ciently larger than the fi eld of view.
(2) When the current measurement value is displayed, input the
temperature of the target.
(3) Press the ENTER button to confi rm the setting.
(4) Check that the indicated value and emissivity rate have been changed.
(1) In the ε mode, press the ENTER button to make the
E
(2) Directly input the emissivity rate.
E0. 9 5
(3) Check that the indicated value and emissivity rate
150 160
160 E0. 9 0
setting.
have been changed.
13