该电路通过对被测电压的判断和量程选择器的控制，实现了在高精度仪表中量程的自动选择。
The circuit, through evaluating the input voltage and controlling the selector of the measuring scale, realizes automatic selection in high precision instrument.
软件部分主要包括系统的初始化、自检、量程选择、平衡参数设置、定标系数确定、动平衡测量、键盘中断处理、彩色液晶显示等模块。
Software consists of system initialization, self-test, measurement range selection, balance parameter setting, calibration coefficients determining, access programs of keyboard and LCD.
选择伏特计的最低量程。
通常，它只能检测到你机器上的少量程序并让你选择使用。
Usually, it detects and lets you choose only a few of the applications you may have on your machine.
用户输入被测表型号、GPIB地址，选择测量功能与量程及次数等，执行自动测量。
The user inputted the type of the tested multimeter and GPIB address, and selected measurement function, range, times etc, and automatic measurement was performed.
用万用表来作电阻表使用时，你需要选择电阻量程。
To get the multimeter to function as an ohmmeter , you will need to select a resistance range.
输入偏置电流可以通过盖上(capping)输入连接器并选择最低的电流量程来决定。
Input offset current can be determined by capping the input connector and selecting the lowest current range.
中间的旋钮可以旋转很多位置，你必须选择一个所需要的量程来作为测量量程。
The central knob has lots of positions and you must choose which one is appropriate for the measurement you want to make.
具备232通讯、自动选择量程、数据锁定、数字显示、易操作等功能。
With 232 communication, selection range automatically, data lock, data display, operating easy and so on.
那么如果量程气是75，量程2将被选择为校准量程。
Then if 75 is set as the span gas, Range 2 is selected for calibration.
还有测量量程自动扩展、根据测量范围自动选择最佳精度的功能。
It also has the function of automatic expansion of measuring distance, automatic selection of the superior accuracy according to the measuring range.
四种测量程序可供选择：标准、自动完成、定时、和手动模式。
Four kinds of measurement procedures are available: standard, automatic completion, timing, and manual mode.
注意：当手动量程被选择的时候，你不能改变一个峰的量程范围。
NOTE: When Manual ranging is selected, you can't change the Range during a peak.
注意：当手动量程被选择的时候，你不能改变一个峰的量程范围。
NOTE: When Manual ranging is selected, you can't change the Range during a peak.
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