Spider DSA User’s Manual
11
To avoid electrical shock or fire:
1. The Spider is a low voltage measurement instrument.
2. Do not apply input voltages above the rating of the instrument. Never
apply a voltage that potentially exceeds ±20 V.
3. Review the entire manual before using the instrument and its
accessories.
4. Do not operate the instrument around explosive gas or vapor.
5. Before use, inspect the instrument, BNC connectors and accessories
for mechanical damage and replace if damaged. Look for cracked or
missing plastic. Pay special attention to the insulation surrounding
the connectors.
6. Remove the cables and accessories that are not in use.
7. Use the ground input only to ground the instrument. Do not apply
any voltage.
8. Do not insert metal objects into connectors.
9. Use only the wall-mount AC Adapter provided by Crystal
Instruments.
AC Adapter Voltage Range
For external power sources theSpider-80X uses a wall-mount AC adapter. The AC
Power range is: 100 – 240V
AC
, 47 – 440 Hz.
Maximum Measurement Input Voltage
The maximum working input voltage is 20 V peak. Voltage ratings are given as
“working voltage”. They should be read as V
peak
for dynamic applications and as
V
DC
for DC applications.
The maximum input range without damaging the hardware is40V
peak
.
Connecting Your PC to the Spider Front-End
You can connect the Spider modules through an Ethernet LAN or
directly to your PC using an Ethernet crossover cable. There is a CAT-5
100Base-T jack on the rear of the modules.
If your Spider system consists of more than one module, you will need to connect
the modules with a network switch or router. It is recommended that your system
use a private LAN rather than a shared office LAN. Spider hardware supports
IEEE 1588 time synchronization. To scale the measurement system with more
than one Spider unit, an Ethernet switch supporting IEEE 1588 is highly
recommended.
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