22
HARDCOPY OUTPUT FACILITIES
Printer Interface
Links to dot-matrix printer
(Epson quad density graphics compatible)
via RS-423 interface.
Prints stored waveforms plus annotation.
Digital Plotter
Links to digital X-Y plotter
Interface
(HP-GL compatible) via RS-423 interface.
Plots stored waveforms plus annotation.
Analogue Plotter
Provides simultaneous output of A and B
Interface
traces for analogue chart recorder plus X
output for X-Y plotter. Output 100mV/div.
Speed 1,2,5 or 10 seconds per division. Pen
lift/chart feed output 0 to 5V.
POWER
110, 120, 220 or 240V ± 10% at 50/60Hz.
REQUIREMENTS
30VA max.
OPTIONS
GP-IB (IEEE-488)
Provides all of the functions of the
Interface
RS-423 interface via the General Purpose
Interface Bus.
DS-PC Link
Software and firmware package which links
the instrument to an IBM-PC compatible
personal computer for waveform display
and control.
S2. ELECTRICAL ISOLATION
The ground connections of the DSA are all connected to the
ground conductor of the AC line supply. All exposed metal parts
are also connected to this point. Consequently only equipment
which is either floating or is already connected to AC line
ground should be connected to the ground of the DSA.
S3. GENERAL SAFETY CONSIDERATIONS
This instrument has been designed to the highest safety
standards, but safety depends on the user and the following
basic precautions should be observed. The instrument is Class 1
by IEC classification.
i) Before connecting to an AC line supply, check that the unit is
set to the correct voltage as indicated by the label at the rear.
ii) Ensure that an appropriate AC line plug is connected to the
standard IEC cable supplied, and that a secure ground
connection is made. Connections are brown = live, blue =
neutral, green/yellow = ground.
iii) Remove power from the instrument before making any
attempts to dismantle it.
S4. FUSE REPLACEMENT
The AC power fuse is mounted on the back panel within the AC
line input socket housing. To replace the fuse pull the clip-in
tray outwards. The active fuse is at the back of the tray, the
front space is for a spare fuse.
The fuse must be replaced with a 500mA anti-surge 20mm
cartridge fuse. A ceramic bodied HRC type should be used
whenever possible.
S5. MAINTENANCE AND REPAIR
The manufacturers or their agents abroad will provide repair for
any unit developing a fault. In the UK, defective instruments
should be returned, carriage paid, to the manufacturer's service
department. Careful and substantial packing is essential, no res-
ponsibility can be accepted for damage caused in transit to the
manufacturer, if possible use the original packing material.
If the guarantee has expired or if the fault is the result of
misuse, the repair will be carried out and charged unless other
instructions are received.
Customers outside of the UK should contact the dealer or agent
from whom the unit was purchased to ascertain service
arrangements for that country.
S6. UPDATING THE FIRMWARE
From time to time small revisions may be made to the firmware
of the DSA524 (the firmware is the ROM based program code
for the unit). The firmware level is displayed briefly whenever
the unit is first switched on (and when SET 'SCOPE is used) as
DSA524 X.XX, where X.XX is the firmware level.
If the user should require an update to the latest firmware level
at any time, new firmware can be obtained via the agent or dis-
tributor from whom the unit was purchased (or directly from
Thurlby Electronics Ltd.) and can be fitted by the user. A small
charge will be made for the new firmware.
S7. GUARANTEE
The instrument is guaranteed as free from defects in workman-
ship or materials. The terms of the guarantee will vary depen-
dent upon the country in which it is sold. Information concern-
ing the guarantee can be obtained from the dealer or agent
from whom it was purchased. In the UK the guarantee period is
12 months.
