-67-
No.PS
※※
-OMX0002
○
Conversion formula of the process data and pressure gauge measurement value
(1) Conversion formula from the process data to the pressure gauge measurement value:
Pr = a × (PD) + b
(2) Conversion formula from the pressure gauge measurement value to the process data:
(PD) = (Pr – b) / a
Pr: Pressure gauge measurement value and pressure set value
PD: Pressure gauge measurement value
a: Inclination
b: Intercept
[Inclination and intercept to the unit specification]
Series
Unit
Inclination a
Intercept b
ISE20C
MPa
0.00025
-0.25
kPa
0.25
-250
kgf/cm
2
0.00254925
-2.54925
bar
0.0025
-2.5
psi
0.03626
-36.26
ZSE20C
MPa
-0.000025
0.025
kPa
-0.025
25
kgf/cm
2
-0.000254925
0.254925
bar
-0.00025
0.25
psi
-0.003626
3.626
inchHg
-0.0073825
7.3825
mmHg
-0.187525
187.525
ZSE20CF
MPa
0.00005
-0.15
kPa
0.05
-150
kgf/cm
2
0.00050985
-1.52955
bar
0.0005
-1.5
psi
0.007252
-21.756
inchHg
0.014765
-44.295
mmHg
0.37505
-1125.15
ISE20CH
MPa
0.0005
-0.5
kPa
0.5
-500
kgf/cm
2
0.0050985
-5.0985
bar
0.005
-5
psi
0.07252
-72.52
[Calculation example]
(1) Conversion from the process data to the pressure measurement value
(For ISE20C series, unit specification MPa and PD = 2000)
Pr = a × (PD) + b
= 0.00025 × 2000 - 0.25
= 0.25 [MPa]
(2) Conversion from the pressure measurement value to the process data
(For ISE20C series, unit specification MPa and Pr = 0.75 [MPa])
(PD) = (Pr – b) / a
= [0.75 – (–0.25)]/0.00025
= 4000
Содержание ISE20CH-L
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