TY1-3A 6/18
・In the case of a vacuum gauge
Ⅱ-Range of scale(In the case of a vacuum gauge)
P
min
:The smallest pressure P
max
:The biggest pressure P
s
:Pressure span.
The range of scale A is made by subtracting less than 10% of each end of pressure
span.
The range of scale B is made of less than 10% of each end of pressure span.
・In the case of a compound gauge
Ⅲ-Range of scale(In the case of a compound gauge)
P
min
:The biggest pressure of the vacuum department
P
max
:The biggest pressure of the pressure department P
s
:Pressure span.
The range of scale A is made by subtracting less than 10% of each end of pressure
span and less than 5% each of upper and lower parts of zero point of a compound
gauge.
The range of scale B is made of less than 10% of each end of pressure span and less
than 5% each of upper and lower parts of zero point of a compound gauge.
But the scale range where range of scale A and range of scale B overlap will be range
of scale B.
Because zero points range of scale A and range of scale B overlap and dance on the
near pressure side when the biggest pressure of the vacuum department will be 5% of
the pressure span.
P
s
P
s
P
min
P
min
P
max
P
max