BS EN 17255-2:2020 pdf free.Stationary source emissions – Data acquisition and handling systems Specification of requirements on data acquisition and handling systems.
BS EN 17255-2 This document supports the requirements of EN 14181 and legislation such as the IED and E-PRTR. It does not preclude the use of additional features and functions provided the minmum requlrements of this document are met and that these features do not adversely affect data quality, clarity or access. 2 Normative references The fllwing documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated refenences, the latest edition of the referenced document (including any amendments) applies. EN  4181:2014. Stationary source emisions一Qwality assurance of automated measwring systems EN 172551, Stationary source missions一Duta acquisition and handing system一Part 1: Specificotion ofrequiremens Jor the handling and reporting of data IEEE 754,  ooting-point arithmetic 3 Terms and definitions For the purposes ofthis document, the terms and definitins given in EN 17255-1 and the fllowin apply. IS0 and IEC maintain teminological databases for use in standardization at the fllovi addresses -IEC Electropedia: ailable at ht:wwlctroeda.orge. 一IS0 Online browsing platform avallable at htst/w/w/w.//.pop 3.1 warning sigal binary value or  numerated value sinifying the need tor action Note 1 to entryr. Warnings can be derived from measurement values or conditions, which are still within the specified limis, but where the value is close to the specified limit. Warnings are for the benefit of the
plant operator, Note 2 to entry: Warnings can be conditons communkcated to the plant operator as requiring attention. Iostrument conditions like operation eoceeding the upper limit of the valid calbration range are also considered warnings.Note 2 to entry: Examples of alarm signals from instruments include conditions such as out of operation, and operation conditions like measurements outside the measurement range. Note 3 to entry: A condition. which leads to a8n alarm, can lead to a violation, if it persists too kong according to directives, local permits or other standands. Note 4 to entry: Alarms are conditions communicated to the plant operator indicating that the plant if it continues in this state could enter into a condition where it is not ary longer fulling the relevant directive conditions.  BS EN 17255-2 pdf download.