Measuring functions

The surface temperature of objects in the area of the measuring surface is determined as an average value of the measuring surface. This means, you can, for example, check radiators or look for overheated machine parts.

If a measurement is started by pressing the measure button (6), the laser for marking the measuring surface is also automatically switched on (the laser symbol (h) appears on the display). Upon completion of the measuring process, the laser switches off automatically and the laser symbol (h) disappear on the display.

The laser can be deactivated in the main menu  see Main Menu. In this case, the laser off symbol (g) will be shown on the display during the measurement.

Individual measurement:

• Briefly press the measure button (6). Upon completion of the measuring process, the measured temperature appears in the measured value indicator (n).

Continuous measurement:

• Press and hold the measure button (6) and, using slow movements, aim the laser at each of the surfaces to be measured, one by one.
• The measured value indicator (n) is continually updated. The temperature range of the continual measurement with the temperature scale (l) is shown; the current measured value is marked on the scale. Once the difference between the measurements is at least 3 °C during the measurement, the minimum measured value will appear in the indicator (m) and the maximum measured value will appear in the indicator (j).
• As soon as you release the measure button (6), the measurement is completed. The last measured temperature is fixed in the measured value indicator (n), as well as the last indicator on the scale (l).

Saved measured values:

• The measured values of the individual measurements and the final values of the continuous measurements appear in the saved measured values indicator (k). The most recent measured value is on the left-hand side of the display and the oldest is on the right-hand side. The measured values of the surface temperature measurement are in a black font on a grey field (in contrast to contact temperature measured values in a grey font on a black field).
• The measured values are saved when the measuring tool is switched off.
• You can delete the most recently saved measured value by briefly pressing the on/off button (11).

Contact temperature measurement enables the temperature of an object to be measured directly using a type K temperature probe (19). This enables temperature measurements in media, liquids, air currents or on surfaces with a low emissivity (polished metals) in situations in which the infrared measurement has inherent disadvantages or is very difficult.

If necessary, additional temperature probes with a type K connection whose shape has been optimised for special applications are commercially available. Read and observe the information from the temperature probe manufacturer.

Note: Use type K shielded temperature probes only. Measurements may yield incorrect results if other types of temperature probes are connected.

Using a temperature probe principally requires direct contact with the object measured. Pay attention to the safety instructions because of the potential dangers.

Open the connection cover (8) and put the plug of the temperature probe into the connection (8). Ensure that the polarity is correct according to the markings on the connection.

As soon as a temperature probe is connected, the temperature probe symbol (f) will appear on the display. For the contact temperature measurement, the measure button (6) must not be pressed and the laser is deactivated.

The measured value indicator (n) is continually updated. The temperature range of the continual measurement with the temperature scale (l) is shown; the current measured value is marked on the scale. Once the difference between the measurements is at least 3 °C during the measurement, the minimum measured value will appear in the indicator (m) and the maximum measured value will appear in the indicator (j).

To achieve a reliable result for measurements in media, wait for the measured value to stop changing. This can take several minutes depending on the medium and version of the temperature probe.

You can save a contact temperature measured value by briefly pressing the measure button (6). The measured values appear (such as that of the surface temperature measurement) in the saved measured values indicator (k). To distinguish between surface measured values, the saved contact temperature measured values are in grey font on a black field.

Close the connection cover (8) again after removing the temperature probe.

The measuring tool has a temperature alarm for the minimum temperature and the maximum temperature. You can set the values for which the alarm is triggered in the main menu  see Main Menu. This applies to both surface and contact temperature measurements.

The temperature alarm can be switched on and off separately for the minimum and maximum temperatures in the quick settings of the main menu. If at least one alarm is switched on, the temperature alarm symbol (d) will appear on the display.

If the minimum temperature alarm is triggered, the temperature alarm symbol (d) and the measured value (n) will light up blue and the display will have a blue flashing border. If the audio signal is switched on, a warning signal will sound.

If the maximum temperature alarm is triggered, the temperature alarm symbol (d) and the measured value (n) will light up red and the display will have a red flashing border. If the audio signal is switched on, a warning signal will sound.