Table 2: Basic instrumentation for pollutant emissions measurements.

Unit Instrumentation Type Accuracy Operating principal Dynamometer AVL List GmbH AFA335 ±0.1% Electric direct current generator Fuel mass flow meter AVL List GmbH 733S ±0.1% Coriolis effect Air mass flow meter AVL List GmbH Sensyflow ±0.1% Hot film anemometer Smoke AVL List GmbH 439 ±0.1% Hartridge, optical HORIBA CLA-755A [wet] ±1% Chemiluminescence detector HC HORIBA FIA-725A [wet] ±1% Flame ionization detector CO HORIBA AIA-721 [dry] ±1% Nondispersive infrared detector CO2 HORIBA AIA722 [dry] ±1% Nondispersive infrared detector O2 HORIBA MPA-720 [dry] ±1% Magnetopneumatic detector Combustion analyzer DEWETRON DEWE-800-CA-SE  Piezoelectricity sensor Kistler 6125B11 ±0.3%  Charge amplifier Kistler DAQP-CHARGE-B time drift: 0.03 PC/s  Encoder DEWETRON CA-RIE-360 ±0.2° CA