Emissivity; Setting The Emissivity; Temperature Measurement - Berner 219048 Bedienungsanleitung

Emissivity

The emissivity is a value that is used to describe a material's energy radiation characteristic.
The higher this value, the higher the ability of the material is to send out radiation. Many organic
materials and surfaces have emissivity of approximately 0.95. Attached is a list of the emissivity
values of several materials. Metallic surfaces or shiny materials have low emissivity. Therefore,
the Berner mould detector is fitted with an emissivity-setting feature. Despite this adjustable
emissivity setting feature, we do not recommend taking measurements of shiny surfaces such as
stainless steel. You will get more precise measured values if you blacken or tape over the surface
to be measured. Measurements cannot be made through transparent surfaces, like through glass
for example. You will actually measure the surface temperature of the glass instead.

Setting the emissivity

To correctly determine the surface temperature of an object, you need to set the emissivity
accordingly. The instrument has 3 pre-set emissivity setting:
► High Emissivity (0.95)
Concrete (dry), bricks (red, course), sandstone (course), marble, roofing felt, stucco (course),
mortar, gypsum, parquet flooring (matte), flooring panels, PVC, carpet, wallpaper (patterned),
tiles (matte), glass, aluminum (anodized), enamel, wood, rubber, ice
► Medium Emissivity (0.85)
Granite, paving stone, fiberboard, wallpaper (lightly patterned), varnish (dark), metal (matte),
ceramic, leather
► Low Emissivity (0.75)
Porcelain (white), varnish (light), cork, cotton

To change the emissivity setting, press the
correct emissivity degree desired.

Temperature measurement

To measure the temperature point the IR sensor's opening towards the object to be measured
and press the key to measure the temperature.
Make sure that the measurement spot size is not larger than the object to be measured. The
currently detected temperature is shown in the LCD. To locate the hottest spots of an object,
point the Berner mould detector at a location outside the desired area. Then search for the hottest
point by moving the detector across the surface of the object in a zigzag pattern holding down the
temperature measurement key all the while until you find the warmest spot.
After releasing the temperature measurement key the temperature detected will be shown in the
display for approximately 25 seconds. During this time, "HOLD" will be shown. The device will
switch itself off to save batteries after approximately 25 seconds.
Choose the unit you wish to be displayed (°C/°F) using the "AB" key.
The laser, when it is turned on, shows the mid-point of the measurement area approximately.
This means you can easily make accurate readings.
To activate the laser, press the temperature measurement key and the "Down" key until the laser
button until the display shows the
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