6
Manual XC250
EN
Switch-on and measurements
Risk from laser radiation!
Class 2 laser radiation.
Lasers of class 2 only radiate in the visible range and
during continuous wave operation (lasting beam) no
more than 1 milliwatt (mW) of output will be emitted.
Looking directly into the laser beam for a longer period
of time (more than 0.25 seconds) can cause damage to
the retina.
Avoid looking directly into the laser beam. Never look
into the laser beam using optical aides. Do not
suppress the winking reflex when looking into the laser
beam unintentionally. Never point the laser beam at
people or animals.
Note:
The cross control is very sensitive. Therefore, avoid dirt on the
control panel, because it could be misinterpreted by the device as
keystroke.
Before use make sure that the touchscreen control panel is
dirt-free.
If required clean the touchscreen control panel according to
chapter Cleaning the device on page 13.
1. Remove the protective cap from the infrared sensor (6), if you
want to carry out an infrared measurement. Otherwise leave
the protective cap on the infrared sensor.
2. Press the On/Off key (4) until a beep is emitted.
3. The device performs a short self-test.
– The device name and firmware version is shown on the
display.
– The battery charge is indicated on the display.
– The device is ready for operation.
– The displayed units are based on the settings of the last
utilization.
4. Select the desired measuring mode.
5. Point the device at the area to be measured.
– The measured values will be displayed.
Note:
Note that moving from a cold area to a warm area can lead to
condensation forming on the device's circuit board. This physical
and unavoidable effect can falsify the measurement. In this case,
the display shows either no measured values or they are
incorrect. Wait a few minutes until the device has become
adjusted to the changed conditions before carrying out a
measurement.
Key lock
1. Briefly press the On/Off key (4) during operation.
– The device emits a short beep.
– The following message appears on the display: LoC on.
– Key lock is activated.
2. Press the On/Off key (4) again.
– The device emits a short beep.
– The following message appears on the display: LoC off.
Key lock is no longer activated.
Operating mode
The device comes with three different operating modes.
1. Press the Up key (9) to switch between the operating modes.
– The operating mode is indicated on the Operation mode
display (21).
TH mode
• The device now has the functionality of a thermohygrometer.
• The upper measured value display (16) indicates the
temperature.
To set the unit see Temperature display configuration on
page 9.
• The lower measured value display (18) indicates either the
humidity or the dew point.
To set the unit see Humidity display configuration on
page 10.
TH
HOLD
IR
MAX
DP
MIN
AVG
CFG
ACT
21