34972A LXI数据采集仪通过2线测量应变计问题

大家好我购买了34972A LXI数据采集仪，通过2线测量应变计。
在我尝试使用它时，我有几个问题。
我很困惑，因为用户手册说明虽然仪器不直接支持应变测量，但您可以使用带有缩放的4线电阻测量来测量应变计。
但是，BenchLink Data Logger 3软件具有内置的应变计测量功能。
我需要放大器吗？
另外，我无法从前面板获取存储在USB中的数据。
那么，你能解释一下如何检索数据。
我准备的项目涉及监测17个2线应变计大约一周，每10分钟读取一次。
因此，我需要从前面板使用USB，将数据自动记录到USB，然后将其传输到计算机。
需要获得有关如何充分利用数据获取的教程或管理。
那么，您能否告诉我如何实现管理或教程。



     以下为原文

  Hi all
I bought 34972A LXI Data Acquisition  
instrument to measure strain gages through 2-wire.

I've couple of questions while I'm trying to work with it.

I'm confused because the user manual stated that

Although the instrument does not directly support strain measurements, you can measure a strain gage using a 4-wire resistance measurement with scaling. However, BenchLink Data Logger 3 software has built-in strain gage measurement capability.

Do I need an amplifier?

Also, I can't get the data stored in USB from the front panel.

Kindly, can you explain how can I retrieve the data.

the project I've to prepare is involving monitoring  17 of 2-wire strain gages for about a week where the reading may be taken each 10 minutes. So I need to work with USB from the front panel, autologging the data to the USB, then transfer it to the computer.
It is strongly needed to get tutorial or administration on knowing how to get the best of the data acquization.   
Kindly, can you address me on how the administration or  tutorial can be achieved.