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3. Calibrator
The ADT227EX calibrator can be used to calibrate pressure, loop, temperature, and flow equipment, as shown in
Figure 6. The channel 1 at the top of the screen is mainly used for electrical signal measurement functions; The channel
2 at the bottom of the screen is mainly used for electrical signal output functions. Both functions support a variety of
electrical signal types. In addition, the upper and lower channels can be used for the display of pressure measurement.
Two channels can be displayed simultaneously.
The measured or output signal value is displayed in the middle of the channel. The icon of the signal type and the
corresponding range information is displayed on the upper left, click this icon to pop up a menu for switching the signal
type; Click the icon in the upper right corner to set the current channel in the pop-up menu; Click the icon in the
lower right corner to perform the zero operation on the current channel.
If the signal type selected in the channel has multiple values for display (for example, when measuring the TC
temperature signal, in addition to the temperature value, there are also the original millivolt signal value and the cold
junction temperature value), the channel will also display these signal values below the main signal value.
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