R&S ENV432
Safety Instructions
User Manual 1326.6492.04 - 03
E-5
1
Safety Instructions
Before putting the device into operation for the first time, be sure to read and observe
the following safety instructions as a supplement to the safety brochure supplied with
the device (1171.0100.42).
Electric shock in case of wrong connection order.
The protective earth (PE) or protective ground connection must not be removed until all
other connections have been disconnected.
Put the V-network into operation in the following order (
connect additional PE first
):
1. Connect V-network to additional protective earth.
2. Connect V-network to supplying network.
Take the V-network out of operation in the following order (
disconnect additional PE
last
):
1. Disconnect V-network from supplying network.
2. Disconnect V-network from additional protective earth.
All safety instructions and warnings given on the device and in this operating manual
must be strictly observed.
Incorrect operation of the V-network may expose users to a life-threatening situation.
Users have to be instructed accordingly.
Electric shock due to improper operation.
By design, V-networks exhibit high ground leakage currents. Moreover, by principle,
such a device has a nonstandard isolation and no fuse in the measuring circuit (the
R&S ENV432 only features a fuse in the auxiliary circuit of the ventilation system).
Hence users must be protected against touching conductive parts that may carry live
mains voltage.
To ensure this, the V-network must be put into operation only by qualified electrical
specialists. The applicable national regulations and standards must be observed as
part of the installation process.
Since the permissible limit for the leakage current in line with EN 61010-1 as well as
the basic insulation for a device with degree of protection I cannot be met due to the
required standard-compliant setup in line with CISPR 16-1-2 (EN 55016-1-2),
additional measures must be taken to protect the user against direct or indirect contact.
