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4.4. Date and Time
With the device switched o, press the “TIME” button. The
current date and time will be displayed. The device switches o
automatically after 150 seconds.
5. CARE AND MAINTENANCE
5.1. Caring for Your Meter
• Use the device according to the instructions contained in
this user manual. The manufacturer will not be held liable for
damage caused by improper handling.
• Do not expose the device to extreme temperatures, humidity,
dust or direct sunlight.
• The cu contains a sensitive air-tight bubble. Handle with
care. Avoid all types of straining through twisting or buckling
of the cu and/or tubing.
• Clean the device with a soft, dry cloth. Do not use alcohol,
thinners or similar solvent. Dirt on the cu can be removed
carefully with a damp cloth. The cu must never be washed!
• Do not drop or shake the device or treat it roughly in any way.
• Never open the device! Opening the device will void the
manufacturer’s guarantee.
5.2. Replacing the batteries
If a battery warning appears in the display, the batteries
are almost depleted and must be replaced . When the battery
warning appears, the batteries are depleted and the device
will not work until the batteries have been replaced.
6. SYSTEM TROUBLESHOOTING
6.1. Error messages
If an error occurs during a measurement, the measurement is
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