仪器的零点读数也会随着环境温度的变化而变化。这种效应通常称为电压偏置温度系数。
The zero reading may also vary as the ambient temperature changes. This effect is usually referred to as the temperature coefficient of the voltage offset.
最后，在完成每次取样和净化顺序后，必须借助于水游离度测量来校正测量仪器的零点，以确保可以进行下一个读数。
Finally, after each sampling and cleaning sequence the measurements’ zero point ischecked with a water freeness measurement to make sure the next reading isrepeatable.
为做到这一点，简单的做法是，在零点检查关闭之后打开REL功能，这样就能把零跳的读数消除掉。
An easy way to do this is to enable the REL function after zero check is disabled, which nulls out the charge reading caused by the hop.
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