Emissivity
The emissivity is a value used to specify the energy radiation characteristics of a material. The
greater the value, the greater the capability of the material to transmit radiation. Many organic
materials and surfaces have an emissivity of approx. 0.95. A list with the emission values for
several materials is enclosed. Metallic surfaces or shiny materials have a low emissivity.
Therefore, the Testboy
not recommended to measure glossy surfaces (stainless steel etc.). More accurate measurement
values can be obtained if the measurement location is masked using black paint or adhesive
tape. Measurements cannot be carried out through transparent surfaces, e.g. glass. The
temperature of the surfaces of the glass area is measured instead.
Changing the setting for the emissivity
Press the button MODE until E shows on the display. Using the buttons (7) and (8), the
emissivity required can now be set.
Alarm function
The Testboy
TV 326 has a convenient alarm function. If, during a measurement, the
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temperature limits set are exceeded or not attained, an acoustic sound is emitted. In addition, the
respective alarm is indicated on the display with "HI" or "LOW".
Changing the alarm limit setting
Press the button MODE until "HAL" or "LAL" is indicated on the display. "HAL" sets the upper
alarm value (High Alarm), "LAL" the lower alarm value (Low Alarm). Use the buttons (7) and (8)
on the secondary display to set the value required.
Contact measurement with the temperature sensor
In order to carry out temperatures with an external sensor (Type K) connected, connect this to the
jack (5) on the lower end of the pistol grip. Keep pressing the button MODE until "PRB"
illuminates on the display. The value measured is presented on the secondary display.
Replacing the battery
If the instrument is not used for a longer period of time, remove the batteries and keep the
instrument in an environment that is not moist or too hot.
Do not leave any used batteries in the measurement instrument, because even batteries
protected against discharge can corrode and, thus, release chemicals that could damage your
health and destroy the instrument.
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Testboy
TV 326
TV 326 has an emissivity setting. Despite the adjustable emissivity, it is
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Functions
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