Page 392 - 2019종합카다로그_Pressure gauge

Pressure switch Working range
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 set point, leakage or material
failure.
Adjustable range Max. Working pressure
The span of pressure between upper and lower limits The maximum input pressure that can be continuously
within which the pressure switch can be adjusted to applied to the pressure switch without causing leakage
actuate/deactuate. It is expressed for increasing or catastrophic material failure. Permanent change of
pressure. set point may occur, or the device may be rendered
inoperative.
Setpoint
That discrete pressure at which the pressure switch is Repeatability
adjusted to actuate/deactuate on rising or falling The ability of a pressure switch to successively operate
pressure. It must fall with the adjustable range and be at a set point that is approached from a starting point
called out as increasing. in the same direction and returns to the starting point
over three consecutive cycles to establish a pressure
profile.
Dead band The closeness of the measures set point values is
The difference in pressure between the increasing set normally expressed as a percentage of full scale
point and the decreasing set point. (maximum adjustable range pressure).

Pressure range table

Dead band Flange
Code Adjustable setting range One SPDT Two SPDT Working size Max. Working pressure
range
Setpoint Setpoint (mm)
bar kPa bar bar bar bar MPa
900 -0.1 ~ -0.15-100 ~ -15 Within 10 % Within 20 % 10 88 ~ 98 35 3.5
adjustable
adjustable
927 0.003 ~ 0.03 0.3 ~ 3 range range 2 113 6 0.6
930 0.02 ~ 0.07 2 ~ 7
929 0.003 ~ 0.07 0.3 ~ 7
901 0.075 ~ 0.15 7.5 ~ 15
938 0.045 ~ 0.3 4.5 ~ 30 10 88 ~ 98
941 0.075 ~ 0.5 7.5 ~ 50 35 3.5
949 0.09 ~ 0.6 9 ~ 60
942 0.12 ~ 0.8 12 ~ 80
902 0.15 ~ 1 15 ~ 100 20 63
903 0.3 ~ 2 30 ~ 200 Within 5 % Within 10 %
904 0.45 ~ 3 45 ~ 300 adjustable adjustable
range
range
906 0.9 ~ 6 90 ~ 600
908 1.5 ~ 10 0.15 ~ 1 MPa 70 7
911 2.25 ~ 15 0.225 ~ 1.5 MPa 50
912 3 ~ 20 0.3 ~ 2 MPa 60
914 4.5 ~ 30 0.45 ~ 3 MPa 170 17
916 7.5 ~ 50 0.75 ~ 5 MPa 100
918 8.5 ~ 70 0.85 ~ 7 MPa 200 20
919 10.5 ~ 100 1.05 ~ 10 MPa 150
926 15.5 ~ 150 1.55 ~ 15 MPa 400 40

P945_04