ANNEX VII
SPECIFIC REQUIREMENTS
2.Accuracy classification and maximum permissible errors (MPEs)
2.6.Conversion devices
(b)Associated measuring instruments
Associated measuring instruments shall have an accuracy at least as good as the values in Table 4:
Table 4
MPE on Measurements | Accuracy classes of the measuring system | ||||
---|---|---|---|---|---|
0,3 | 0,5 | 1,0 | 1,5 | 2,5 | |
Temperature | ± 0,3 °C | ± 0,5 °C | ± 1,0 °C | ||
Pressure | Less than 1 MPa: ± 50 kPa From 1 to 4 MPa: ± 5 % Over 4 MPa: ± 200 kPa | ||||
Density | ± 1 kg/m3 | ± 2 kg/m3 | ± 5 kg/m3 |
These values apply to the indication of the characteristic quantities of the liquid displayed by the conversion device.