Operation; Preliminary Adjustments; Environment; Mounting - BRUEL & KJAER 1050 Instruction Manual

3. OPERATION
3.1. PRELIMINARY ADJUSTMENTS
3.1.1. Environment
3.1.2. Mounting
The Vibration Exciter Control Type 1050 is designed for use in environments with tem-
peratures ranging from +soc to + 40°C (+41 °F to +104°F) and relative humidity up to
90% (measured at 30°C). To prevent overheating, the supply of air to the air vents at the
rear and side of the instrument should be unimpeded.
The 1050 can be used free-standing on its four plastic feet or it may be rack-mounted in
19 inch International Standard racks using BrOel
&
Kjrer Flanges KS 0038. For further
details refer to the Instruction Manual for Rack Systems and Rack-System Adaptors.
3.1.3. Connection of Mains Supply
20
Before connection of a mains supply, the following checks and adjustments should be
carried out to ensure the safe operation of the apparatus.
Mains Voltage Setting
The 1050 can be connected to a 100, 115, 127, 200, 220 or 240V AC, ± 20%, single
phase AC mains supply operating at 50 to 60Hz. To select the correct mains setting, use
a small screwdriver to push in and release the fuse holder at the centre of the Mains
Voltage Selector on the rear panel. Pull the fuse holder straight out and by using a small
coin or wide blade screwdriver turn the selector disc so that the appropriate voltage
setting lines up with the black arrow printed on the panel.
Mains Fuse Rating
Ensure that the correct fuse is fitted as follows:
100, 115, 127 V: 0,4 A slow blow, part no. VF 0039.
200, 220, 240 V: 0,2 A slow blow, part no. VF 0012.
Make sure that only fuses with the required rated current and of the specified type are
used for replacement. The use of mended fuses and short-circuiting the fuse holder is
prohibited.
Mains Socket Connections
Once the mains voltage setting and fuse have been checked, the mains supply may be
connected to the Mains Input socket of the instrument using the power cable AN 0020
provided. The 1050 has a high standard of safety insulation in accordance with Safety
Class II of IEC 348 and therefore need not be connected to the protective earth contact
of a mains supply outlet.