10
NSG 5500 Automotive transient immunity generator
1.13 Installation
The instrument conforms to protection class 1.
Local installation regulations must be respected to ensure the safe flow of leakage currents.
Two independent protective earth connections are necessary (instrument and DUT supply) connected back
to the local permanent installation or to a fixed, permanent protective earth conductor.
Operate the equipment only in dry surroundings. Any condensation that occurs must be allowed to evaporate
before putting the equipment into operation. Do not exceed the permissible ambient temperature, humidity or
altitude. This equipment must not be used in an enclosed space that would restrict the air flow through the
instrument.
Use only legally approved connectors and accessory items. The instrument must be powered from a mains
supply that provides a properly earthed mains socket. Before the unit is powered up, check that the voltage
selector on the instrument is set to the correct position.
Ensure that a reliable return path for the interference current is provided between the DUT and the generator.
The reference ground plane and the earth connections to the instruments as described in the relevant test
standard serve this purpose well.
The instruments must not in principle be opened. This may only be undertaken by a qualified specialist if specifi-
cally instructed to do so in the operating manual. Since the equipment generally works with two independent
power supplies for the generator and the DUT, the instrument must first be disconnected from both sources
before any changes are made. Besides the mains supply itself, certain instruments also operate at high voltages
which are not provided with any internal form of extra protection against being touched.
Ensure that all unused slots are blanked off before powering up.
DANGER!
Persons fitted with a heart pacemaker must not operate the instrument nor
approach the test rig while it is in operation.
