Emissivity; Hl Alarm; Measurement; Laser Sighting - Ecom Ex-MX2 Safety Instructions

8.4.1 Emissivity

Most organic materials and lacquered and oxidised surfaces have an emissivity of 0.95.
The emissivity is preset to 0.95 in the Ex-MX2 for this reason, but can be changed with
the rocker switch.
The determination of the temperatures of shiny or highly polished metal surfaces pro-
duces inaccurate measured values. To compensate for this, the surface to be measu-
red can be covered with adhesive tape or painted matt black. Wait until the adhesive
tape is the same temperature as the material underneath it. Then determine the tempe-
rature of the adhesive tape (corresponds to the material) or the painted surface.
Aluminium*
Asbestos
Asphalt
Basalt
Concrete
Lead*
Ice
Iron*
Paint
Glass (plate)
Rubber
*oxidised, **impervious to light, more than 50 µm, ***natural

8.4.2 Hl alarm

The Ex-MX2 provides an alarm function for exceeding defined temperature values. By
pressing the ENTER key, the alarm value can be set afterwards with the rocker switch.
The temperature values can be moved through in large steps by keeping the rocker
switch pressed. After confirming with the ENTER key, if the measured value is excee-
ded, an alarm signal sounds, the LED above the display lights and the laser marking
flashes. The default value is 50°C.

8.5 Measurement

The device is aimed at an object and the measurement button pressed to determine
the temperature. Remember to take account of the ratio of the distance to the spot size
(8.5.2 Optic diagram) and the field of view. The area of the surface measured by the
device increases as the distance between the device and the object increases.

8.5.1 Laser sighting

Laser sighting is part of the Ex-MX2, The laser sight allows very precise targeting and
is indispensable for sighting on small or far away objects. The 3 point laser marking
shows the exact size of the measuring spot. The equipment is equipped with a robust
solid-state laser which is installed inside the device.
Please read Section 5 Safety instructions carefully for information about laser warnings.
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0.30 Skin
0.95 Wood***
0.95 Limestone
0.70 Ceramics
0.95 Carbon
0.50 Copper*
0.98 Plastic**
0.70 Foodstuffs,
0.93 frozen
0.85 Foodstuffs,
0.95 hot
0.98 Brass*
0.94 Oil
0.98 Paper
0.95 Sand
0.85 Dirt
0.95 Snow
0.95 Steel*
0.90 Textiles
Water
0.93 Bricks
0.50
0.94
0.95
0.90
0.94
0.90
0.80
0.94
0.93
0.90