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Your guide to Pressure Sensors
Guide Topics
Pressure Sensors
Overview
Classification
Gauge Pressure and Absolute Pressure
Analog Monitor Output
Glossary
Pressure Conversion Table
Compliance with New Measurement Law (SI Units)
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Compliance with New Measurement Law (SI Units)

According to the implementation of the new Measurement Law, the introduction of SI units (International System of Units) for measuring instruments including pressure gauges will be mandatory.
Date of enactment of the new Measurement Law: October 1, 1999
Changes: Only the usage of MPa or kPa are allowed (units can not be switched)
The new Measurement Law is to standardize the measurement units used in Japan with SI units.
It aims to establish a standard for correct measurements and to contribute to the development of the economy.
In the law, many ways to "state the quantity of objects" including "length", "weight", "time", "current", "velocity", and "pressure" are defined.
As for pressure gauges, those which display other than SI units are prohibited from being sold and as a result, only those displayed in Pa (Pascal) units are allowed.
The pressure units used in other countries
World map Major units other than Pa
In Japan : kgf/cm2, mmHg
North America : psi, inchHg
Europe : bar


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