Elma 611B
side 18
Battery replacement
1.
As battery power is not sufficient, LCD will display “ ”
replacement with one new battery type 9V is required.
2. Open battery cover, then take out the battery from instrument
and replace with a new 9-Volt battery and place the battery cover
back.
Notes:
How it Works
Infrared thermometers measure the surface temperature of an object.
The unit’s optics sense
emitted, reflected, and transmitted energy, which is collected and focused onto a detector. The unit’s
electronics translate the information into a temperature reading, which is display on the unit. In units
with a laser, the laser is used for aiming purposes only.
Field of View
Make sure that the target is larger than the unit’s spot size. The smaller the target, the closer you
should be to it. When accuracy is critical, make sure the target is at least twice as large as the spot
size.
Distance & Spot Size
As the distance (D) from the object increases, the spot size (S) of the area measured by the unit
becomes larger.
Locating a hot Spot
To find a hot spot aim the thermometer outside the area of interest, then scan across with an up and
down motion until you locate hot spot.
Reminders
Not recommended for use in measuring shiny or polished metal surfaces ( stainless steel, aluminum,
etc.).See Emissivity
The unit cannot measure through transparent surfaces such as glass. It will measure the surface
temperature of the glass instead.
Steam, dust, smoke, etc., Can prevent accurate measurement by obstructing the unit’s optics.
