NARDA ELT-400, Operating Manual

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5 Operation and use ELT-400
5-6
5.3 Measuring
5.3.1 Switching the ELT-400 on and off
Switching the ELT-400 on
✓
You have made sure of the power supply
⇒
Press the ON/OFF key briefly.
The basic instrument switches on.
The function test runs.
Function test
The function test checks the internal memory, display, signal processor and
internal signal paths.
•
During the function test,
– all elements of the display and the display backlight are switched on
for 0.5 seconds,
– the firmware version is displayed for about 2 seconds.
Fig. 5-3 Test display