B+K precision 2165A, Инструкция по эксплуатации, Страница: 7 / 28

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GENERAL INFORMATION
The Models 2615A, 2620A, 2625, and 2630 spectrum ana-
lyzers are easy to operate. The logical arrangement of the
controls allows anyone to quickly become familiar with the
operation of the instrument, however, experienced users are
also advised to read through these instructions so that all
functions are understood. Immediately after unpacking, the
instrument should be checked for mechanical damage and
loose parts in the interior. If there is transport damage, the
supplier must be informed immediately. The instrument must
then not be put into operation.
Symbols
ATTENTION - refer to manual
Danger - High voltage
Protective ground (earth) terminal
Tilt handle
To view the screen from the best angle, there are three
different positions (C, D, E) for setting up the instrument
(see Figure 1). If the instrument is set down on the floor
after being carried, the handle automatically remains in the
upright carrying position (A). In order to place the
instrument onto a horizontal surface, the handle should be
turned to the upper side of the Spectrum Analyzer (C). For
the D position (10° inclination), the handle should he turned
to the opposite direction of the carrying position until it
locks in place automatically underneath the instrument. For
the E position (20° inclination), the handle should be pulled
to release it from the D position and swing backwards until it
locks once more. The handle may also be set to a position
for horizontal carrying by turning it to the upper side to lock
in the B position. At the same time, the instrument must be
lifted, because otherwise the handle will jump back.
Safety
This instrument has been designed and tested in accordance
with
IEC Publication 1010-1, Safety requirements for elec-
trical equipment for measurement, control, and laboratory
use
. The CENELEC regulations EN 61010-1 correspond to
this standard. It has left the factory in a safe condition. This
instruction manual contains important information and warn-
ings which have to be followed by the user to ensure safe
operation and to retain the Spectrum Analyzer in a safe
condition.
The case, chassis and all measuring terminals are connected
to the protective earth contact of the appliance inlet. The
instrument operates according to
Safety Class I (three--
conductor power cord with protective earthing conductor and
a plug with earthing contact). The mains/line plug shall only
be inserted in a socket outlet provided with a protective earth
contact. The protective action must not be negated by the use
of an extension cord without a protective conductor.
The mains/line plug should be inserted before connections
are made to measuring circuits. The grounded accessible
metal parts (case, sockets, jacks) and the mains/line supply
contacts (line/live, neutral) of the instrument have been
tested against insulation breakdown with 2200V DC. Under
certain conditions, 50 Hz or 60 Hz hum voltages can occur in
the measuring circuit due to the interconnection with other
mains/line powered equipment or instruments. This can be
avoided by using an isolation transformer (Safety Class II)
between the mains/line outlet and the power plug of the
device being investigated. Most cathode-ray tubes develop
X-rays. However,
the dose equivalent rate falls far below
the maximum permissible value of 36pA/kg (0.5mR/h) .
Whenever it is likely that protection has been impaired, the
instrument shall be made inoperative and be secured against
any unintended operation. The protection is likely to be
impaired if, for example:
•
shows visible damage
•
fails to perform the intended measurements
Fig. 1. Tilt Handle Operation