Vishay DXP10, Руководство оператора, Страница: 11 / 42

2-3
2.3.3 Analog Output.
When the analog option is installed (shown,
Figure 2-3), a three position terminal connector
is provided for 4-20 mA, 0-10 V, and common
connections. As with serial communication, the
wiring should be routed away from ac power
lines and other sources of EMI. The current
output is essentially immune to noise and can be
transmitted long distances. The voltage output is
susceptible to EMI/RFI and should be used only
for short distances.
2.3.4 Mains (AC) Power (Figure 2-4).
A screw terminal is provided for permanent
transmitter power connection. DXp transmitters
can be switch selected to operate at 115 or 220
VAC (see SW1, Figure 2-4). Before connecting
power to the unit, verify that the proper power
selection has been made. The two position
terminal block is equipped with a clear plastic
cover to prevent operator injury. Cable can be
either solid or stranded 12 or 14 gage with a
ground conductor.
The transmitter is protected with a 114 amp slow
blow fuse, located adjacent to the mains
terminal block. If the fuse opens, replace it with
the same type and current rating.
2.3.5 Auxiliary I/O Port.
The auxiliary I/0 port connection is a factory test
port and is not useful to an operator.