3.
The MPEs are defined as follows: For each of the fractions measured, the maximum error value permitted under rated operating conditions according to point 1.1 of Annex I is the greater of the two values shown in Table 2. Absolute values are expressed in % vol or ppm vol, percentage values are percent of the true value. Table 2 MPEs Parameter Class 0 Class I CO fraction ± 0,03 % vol ± 5 % ± 0,06 % vol ± 5 % CO_(2) fraction ± 0,5 % vol ±5 % ± 0,5 % vol ± 5 % HC fraction ± 10 ppm vol ± 5 % ± 12 ppm vol ± 5 % O_(2) fraction ± 0,1 % vol ± 5 % ± 0,1 % vol ± 5 % The MPE on lambda calculation is 0,3 %. The conventional true value is calculated according to the formula set out in point 5.3.7.3 of Regulation No 83 of the Economic Commission for Europe of the United Nations (UN/ECE) OJ L 42, 15.2.2012, p. 1. . For this purpose, the values displayed by the instrument are used for calculation.
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Source: EUR-Lex (Cellar) · retrieved 2026-11-06 · Text as adopted (Official Journal); later amendments are not incorporated in this text.