OIML R 144-2 • Test procedures
OIML R 144-2 • Test procedures
1 Performance tests for type evaluation
1.1 General
1.2 Error determination
1.3 Stability with time or drift
1.4 Repeatability (R 144-1, 4.4)
1.5 Dry heat
1.6 Cold
1.7 Damp heat, steady state
1.8 Ambient pressure
1.9 Power supply variation (R 144-1, 8.4.1 e)
1.10 Influence of gas components other than CO, NO and NO2 (cross sensitivity) (R 144-1, 8.4.2)
1.11 Mechanical vibrations and shock (R 144-1, 8.4.3)
1.12 AC mains voltage dips, short interruptions and voltage variations (R 144-1, 8 n)
1.13 Bursts (transients) on AC and DC mains (R 144-1, 8 o)
1.14 Bursts (transients) on signal, data and control lines (R 144-1, 8 l)
1.15 Surges on signal, data and control lines (R 144-1, 8 m)
1.16 Electrostatic discharges (R 144-1, 8 j)
1.17 Radiated, radio frequency, electromagnetic fields (R 144-1, 8 g)
1.18 Low voltage of internal battery (not connected to the mains power) (R 144-1, 8 r)
1.19 Warm-up time
1.20 Response time
1.21 Spillover of gas flow rates
1.22 Leakproofness