How to adjust the upper and lower limits of the upper and lower limit of the electric contact pressure gauge?
The electric contact pressure gauge is directly at the center of the table to the point where you need it. Contact red green is to stop the equipment start equipment you need to adjust according to the pressure, if we can use the special seismic AC electric contact pressure gauge, can only provide AC voltage, if you don't know is AC or DC on the choice of photo electric contact
Adjustment method of upper and lower limit of electric contact pressure gauge, method for distinguishing upper and lower limit:1, see the logo and wire color judgment, standard letter B or wire color yellow is the common contact; standard letter L or wire color is green is lower contact; lettered H or wire color to red is the limit point.2, on the lower limit of normal one and the common line conduction, so between the upper and lower limits of the connection is not conductive, so conducting a root is the public line, the other one is the pressure gauge pointer and set the thread between the value, the other one will come out, in fact good judgment as long as the upper and lower rotating knob to the conduction position test.The electric contact pressure meter is widely used in measuring the pressure of various fluid mediums without explosion in industrial sectors such as petroleum, chemical, metallurgy, power station, machinery and so on. Usually, the instrument and the corresponding electrical devices (such as relay and inverter) supporting the use of, can be measured (control) the pressure of various gas and liquid medium via the instrument to realize the automatic control and the transmitter (alarm) to.
There is an adjusting screw in the pressure gauge, changing the position of the screw can realize the adjustment of the range and the range of the pressure gauge. The upper and lower limit should be set before you according to your needs
