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Verfügbare Sprachen
Verfügbare Sprachen
Inserting the battery / replacing the battery
Make sure that the polarity is correct when inserting the batteries. Remove the
batteries if you are not using the device for a longer period of time to prevent
damage to the device by leakage. Leaking or damaged batteries may cause cau-
stic burns if they come into contact with skin. Therefore, use suitable protective
gloves to handle damaged batteries.
Keep batteries out of the reach of children. Do not leave batteries lying around
openly. There is a risk of them being swallowed by children or pets. Always
replace the whole set of batteries. Mixing old and new batteries may cause the
batteries to leak which will result in damage to the device.
Do not try to disassemble batteries and avoid short-circuits and contact with fire.
Never try to charge non-rechargeable batteries. There is danger of explosion!
Replace the battery when the "Battery empty" symbol (23) is displayed.
1. Open the battery compartment cover (5).
2. Remove the used battery from the battery clip and connect a battery of the same type to the clip with
the correct polarity. The battery clip is designed to that the battery can only be connected with the
correct polarity. Do not apply any force when connecting the battery.
3. Close the battery compartment cover (5) again.
Operation
Operating principle
Infrared thermometers measure the surface temperature of an object. The sensor of the device measures
the heat radiation emitted, reflected and transmitted by the object and calculates a temperature value.
The emissivity describes the energy emission characteristics of a material. The higher the value, the more
capable the material is of emitting radiation. Many organic materials and surfaces have an emissivity of
approx. 0.95. Metallic surfaces or shiny materials have lower emissivity and therefore measuring results are
inaccurate. For this reason, the infrared thermometer IR 900-30S allows you to specify the emissivity.
Measurement:
1. Point the measurement hole (12) towards the test object in as vertical a position as possible. Make sure
that the test object is not smaller than the measurement hole of the device (also see IR measuring spot
size).
2. Hold down the measuring button (7). The measured value (18) is displayed. The displayed value
represents the average surface temperature of the IR measuring spot. During the measurement,
"SCAN" (14) is displayed.
3. When the measuring button (7) is released, the last measured value is displayed for another
7 seconds so that it can be read more comfortably. "HOLD" (15) is displayed as well.
4. The device automatically shuts down 7 seconds after the measuring button (7) has been released.
5. If the temperature measuring range is exceeded, "---" is displayed.
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