Manual
7
5.3
Max / Min function
1. This function saves the maximum and minimum values of a series of measurements. You can activate
this function by pressing the REC key (4)
. “REC” is displayed.
2. When the “REC” icon appears in the display, you can retrieve the maximum value by means of the
REC key (4). The display will additionally show “REC: MAX”. If you wish, you can now delete this value
by means of the Hold key (3). The “REC” icon will be displayed again.
3. If you press the REC key (4) again, you will see the minimum value. The display will additionally
indicate “REC: MIN”. If you wish, you can now delete this value by means of the Hold key (3). The
“REC” icon will be displayed again.
4. To leave this function, press and hold the REC key (4) for more than 2 seconds.
5.4
Backlight
If you have switched on the device by means of the power key (2), the backlight will light up automatically.
You can switch the backlight on and off by means of the power key (2) during the measurement.
5.5
Memory
5.5.1
Preparation
a) How to insert the SD memory card
Insert the SD card into the slot (9). Please make sure that you insert the SD card in the right direction
and carefully. The memory card should snap into place without using much force.
b) How to format the SD card
If you use the SD card for the first time, it is necessary to format it. To do so, please refer to the
settings chapter below.
c) How to set the clock
If you use the device for the first time, you must set the time. To do so, please refer to the settings
chapter below.
d) How to set the decimal point
In the factory setting, the decimal point is a point, e. g. “20.6.” or “1000.53”. However, in some
countries it is more common to use a comma as the decimal point, e. g. “20,6” or “1000,53”. Therefore,
it might make sense to change the format of the decimal point. For information about this, check the
settings chapter below.
5.5.2
Automatic data logger function
a) How to start the data logger
Press the REC key (4) once. The REC icon will be displayed. Press the logger key (6). The REC icon
will start flashing and the device saves the data to the SD card.
Note:
To find out how to set the sampling rate and switch the beeper on and off, check the settings
chapter below.
b) How to halt the data logger
While the data logger is recording data, you can halt it by means of the logger key (6). In this case, the
REC icon will stop flashing.
Note:
If you press the logger key (6) again, recording will start again.
c) How to stop the data logger permanently
While the data logger is recording data, you can end data logging by means of the REC key (4). To do
so, press and hold the REC key (4) for 2 seconds. The REC icon in the display will disappear.
