WIKA pressure electronic thermostat reset matters needing attention

the temperature transmitter is applied on the pipeline. there is no substance in the pipeline and the pressure is not zero. thus, people have to carry out the actual operation of clearing under the condition of Yuyao thermostat manufacturer the temperature transmitter measures the actual working pressure in the pipeline (provided that the temperature transmitter has been calibrated when installed). if the uncertainty can cut the temperature transmitter out to the air, A working pressure of essentially zero indicates that the temperature transmitter is accurate and appropriate. After talking about using hart to clear the zero point, the zero point of the temperature transmitter will be changed. If it is cleared under working pressure, there is no doubt that the accurate measurement will be inaccurate. For example, the accurate measurement value mentioned by Xiao Bian is 70kpa, but the actual value will be larger, but it is not easy to be accurate to 2.53kpa. This must be calibrated with other standard meters to know how much the actual error is.

1. to carry out the zeroing operation, it is necessary to ensure that the working pressure of the wireless water meter connected to the pressure measurement is zero

2. for the low measurement range and micro-analysis meter, because the disassembly of the wireless water meter is basically the part deviation of the pressure sensitive pulse damper every time, the working pressure of the whole process is set to zero. if the valve is not opened, if the pressure pipe is not cut off,, after zeroing, the actual operation of zeroing will be carried out

3. will there be more wireless water meters that are adapted to be zeroed using a manual operator?

also some wireless water meters, including the reset function key, some are single-key reset, some are double-key zeroing

Shaanxi WIKA working pressure temperature meter

which table on the left picture of my head, SET key and ▲ key are selected, and press and hold the other key to clear, and bring single key, used to directly select the measured value to display the information of ten digits

4, and also some intelligent wireless water meters, the self-diagnosis level will design a more perfect scheme,

which meter on my head picture, when the wireless water meter is equipped with absolute pressure controller, even if press and hold the clear key, the system software will fully automatically shield the implementation of the function 5. Although the shielding and clearing function is good, in addition, some technical engineers must observe the working pressure of the meter, I .e. positive pressure or air pressure, according to the absolute pressure wireless water meter, and observe the general situation, so that they, when the wireless water meter design scheme is not convenient, people also plan a page list of main parameters and a calculation safety channel

when the atmospheric pressure value is entered by touching the key, the display information value of this safety channel, that is, the working pressure value of the meter, because the atmospheric pressure in the natural environment, the average change amount in one year, is about 3KPa, the fluctuation of a month is generally not easy to exceed 0.3kPa, so it is not necessary to change the atmospheric pressure value frequently.