What is the calibration cycle for the pressure gauge / thermometer / flowmeter? Is there a standard to check?
Provisions concerning the period of verification:1 national inspection category (a total of 4 categories: trade settlement related instruments, security related instruments, medical, health related, environmental related) measuring instruments in accordance with national regulations, and strictly enforced. For 1 years, but also for half a year.2 non - strong measuring instruments, the use of units generally can determine its own calibration cycle. Can also be regularly checked, or one-time verification. Generally ranging from 1 to 3 years. Just do it yourself. If it is enterprise, it is better to use document to stipulate.
Used as an enterprise, usually for one year unless required.
According to the standard, it is the national measurement technical standard JJF 1139-2005, "the principles and methods for determining the verification cycle of measuring instruments".In fact, as a measuring instrument, it is impossible for users to determine the inspection cycle according to their specifications.At the same time, the manufacturer has already made the product according to the specifications and determined the inspection cycle, and the cycle can meet a certain requirement.For industrial metering equipment, this cycle is generally not less than one year.So:It is usually tested once a year.If the product specification requires that the cycle be less than one year, proceed as required.If the quality of the product is reliable, it can be done once or twice a year for two times, but the exception of the pressure gauge and the strong inspection equipment is three.Equipment cycles for fire, gas, gas, alarm, etc. shall be specially determined.
