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POWER SUPPLY
The test box is usually powered by the external power adapter delivered with the test box. The
adapter can be connected to 100-240 VAC and will provide DC power to the test box when
connected to the POWER socket on the rear panel. However, any power supply providing DC
between 10 and 28 VDC can be connected (+ on the center pin). For instance a car charger can
be used, enabling the battery inside the test box to be recharged while driving your car.
The test box is equipped with a rechargeable 12 V battery. Whenever external DC is connected
to the test box, the battery is charged. If the DC supply is removed, the battery takes over,
ensuring an uninterrupted switch between external and internal power supply.
Before using the test box in the field, make sure that the battery is fully charged. Fully charged,
the battery should provide power for at least 8 hours of normal operation.
It is recommended from time to time to charge the battery over a full day and night. Also
recommended if the battery has been completely discharged. This will keep the battery fit and
fully restore its capacity.
Loss of power will not cause any loss of data in the test box memory.
During transport by air you are advised to remove the battery fuse from the rear panel. With
this, the test box is permitted as carry-on and check-in baggage. See declaration on page 51.
POWER-ON AND WARM-UP
When powered on, the tester's model type and serial number is briefly presented the LCD-
display. After a few seconds of warming up the test box is ready for use.
PUSH BUTTON CONTROL AND MENU SYSTEM
The test box is controlled by means of 4 push buttons, each of them with a reference to the
bottom line of the display.
↓ is used to scroll down to the next menu line, or to decrease numbers, frequencies etc.
↑ is used to scroll up to the previous menu line, or to increase numbers, frequencies etc.
Ok is used to select or accept what's in the upper line of the display
Exit is used to move one step back in the menu system.
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