请英语高手帮忙翻译一下这段话的意思 点击：234 | 回复：3
发表于：2008-09-06 00:02:35
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DC Main Power Supply
with 4–20 mA Loop
Power Supply
Wire the APEX and APEX Sentry Radar Gauges as shown in Figure 2-20,
using an 18–36 V dc main power supply. Loop power is required for the 4–20
mA/HART output. Use a 10.5–55.0 V dc secondary power supply for the 4–20
mA/HART loop output. Refer to Power Requirements on page 2-24 to
determine the power supply voltage required in the control room. Make sure
the main power to the gauge is off and the lines to any other external power
source are disconnected or not powered while wiring the gauge.
with 4–20 mA Loop
Power Supply
Wire the APEX and APEX Sentry Radar Gauges as shown in Figure 2-20,
using an 18–36 V dc main power supply. Loop power is required for the 4–20
mA/HART output. Use a 10.5–55.0 V dc secondary power supply for the 4–20
mA/HART loop output. Refer to Power Requirements on page 2-24 to
determine the power supply voltage required in the control room. Make sure
the main power to the gauge is off and the lines to any other external power
source are disconnected or not powered while wiring the gauge.
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