JB/T 9237.2-1999
Operating conditions for industrial process measurement and control equipment.Power (English Version)

Standard No.

JB/T 9237.2-1999

Language

Chinese, Available in English version

Release Date

1999

Published By

Professional Standard - Machinery

Status

Withdraw

Latest

JB/T 9237.2-1999

Replace By

GB/T 17214.2-2005

Scope

This standard specifies the limit values of power and gas sources used under normal operating conditions of industrial automation instruments. It does not include the impact of these values on instrument performance. This impact should be stipulated by the standards of each product. For the reference conditions of power, see Appendix A (the appendix of the standard). This standard does not include self-operated instruments such as self-operated pressure regulating valves (the working power of which is taken from the pressure of the controlled fluid) and self-operated temperature regulating valves (the pressure that drives the valve seat movement is generated by the thermal expansion of the medium in the temperature bulb). motivation. This standard does not cover air sources used in jet devices.

JB/T 9237.2-1999 history

• 1999 JB/T 9237.2-1999 Operating conditions for industrial process measurement and control equipment.Power

JB/T 9237.2-1999 Operating conditions for industrial process measurement and control equipment.Power was changed to GB/T 17214.2-2005 Operating conditions for industrial-process measurement and control equipment.Part 2:Power.