Page 420 - 2019종합카다로그_Pressure gauge
P. 420

Pressure switch                            Working pressure
         A bi-stable electro mechanical device than actuates/  The maximum input pressure that can be continuously
         deactuates one or more electrical switching element at a  applied to the pressure switch without causing
         predetermined discrete pressure upon rising or falling.  permanent change of setpoint, leakage or material
                                                    failure.
         Adjustable range
         The span of pressure between upper and lower limits   Repeatability
                                                    The ability of a pressure switch to successively operate
         within which the pressure switch can be adjusted to   at a set point that is approached from a starting point
         actuate/deactuate. It is expressed for increasing   in the same direction and returns to the starting point
         pressure.
                                                    over three consecutive cycles to establish a pressure
                                                    profile.
         Setpoint                                   The closeness of the measures set point values is
         That discrete pressure at which the pressure switch is  normally expressed as a percentage of full scale
         adjusted to actuate/deactuate on rising or falling   (maximum adjustable range pressure).
         pressure. It must fall with the adjustable range and be
         called out as increasing.

         Dead band
         The difference in pressure between the increasing set
         point and the decreasing setpoint.














         Pressure range table


                               Adjustable setting range            Working       Flange size
           Code                                                    pressure
                       H : bar        I : MPa        J : kPa          bar       Diameter (mm)
            932     0.002 ~ 0.015                    0.2 ~ 1.5         2            128
            994      0.01 ~ 0.15                      1 ~ 15
            907       0.1 ~ 0.25                     10 ~ 25           5            113
            909       0.2 ~ 0.35                     20 ~ 35
            910       0.3 ~ 0.5                      30 ~ 50
            922       0.4 ~ 2        0.04 ~ 0.2                       50           88 ~ 98
            905       1.5 ~ 4        0.15 ~ 0.4





















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