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Can the zero trim function of 475 be used to calibrate the zero point for double-flat flange level gauges? Why?

2018-12-25View Original

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Can the zero trim function of 475 be used to calibrate the zero point for double-flat flange level gauges? Why?
Reply #22018-12-25
Why not? Because zero trim is used for resetting.
Reply #32018-12-25
The function of Zero Trim is to force the reading on the current instrument to 0, resulting in a current output of 4 milliamps. To figure out exactly what you need to do, refer to the actual functions to see if they are suitable
Reply #42018-12-25
Sure. Why not? As long as it is gauge pressure, it can all be zeroed using Zero Trim
Reply #52018-12-26
As long as it is an intelligent transmitter and its communication protocol matches that of the handheld operator, it can be adjusted. However, before calibrating the zero point, both positive and negative pressures must be exposed to the atmosphere simultaneously, and the atmospheric pressure around the transmitter must remain stable.
Reply #62018-12-26
If the communication protocol matches that of the handheld controller, zeroing is possible.
Reply #72018-12-26
Sure, as long as there is no detection medium present.
Reply #82019-05-19
The two flanges need to be in the same plane, right? Measuring the liquid level usually involves migration, rather than forced zeroing when the tank is empty.

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