Siemens 7MB2335, Operating Instructions Manual, Page: 20 / 168

Installation Guidelines
2-6
Operating instructions ULTRAMAT 23 gas analyzer
C79000-B5276-C216-03
2.5 Electric Connection
!
Warning
The following must be observed during the electric installation :
The country-specific standards for installation of power systems with
rated voltages below 1000 V (in Germany: VDE 0100).
The failure to observe the standards may result in death, personal
injury and/or damage to property.
2.5.1 Power Supply Connection
The analyzer is supplied with a power cable which must only be
connected by qualified personnel (see Section 1.5). The cable is
connected at the device end to the appliance plug. At the power supply
end, the cable is inserted into a mains outlet.
19” rack analyzer If the supplied power cable cannot be used, a flexible cable suitable for
the power supply must be used. The cross-section of each conductor
must be at least 1 mm
2
. The cross-section of the PE conductor must
not be less than that of the L and N conductors. The cable must be
suitable for a temperature of at least 70 °C. It must be approved for the
country of use or the location.
A readily accessible facility for mains disconnection must be provided in
the immediate vicinity of the analyzer.
Bench top analyzer A power supply cable must be used which is approved for the country
of use or the location. The minimum cross-section of each conductor
must be at least 0.75 mm
2
, the maximum length for this cross-section
is 2 m. Longer cables require larger conductor cross-sections than
0.75 mm
2
. The cable must be suitable for a temperature of at least
70 °C. When positioning the analyzer, make sure that the power switch
on the rear is accessible at all times.
Check that the local mains voltage agrees with that specified on the
rating plate on the analyzer.