Table 2: Basic instrumentation for pollutant emissions measurements.

UnitInstrumentationTypeAccuracyOperating principal

DynamometerAVL List GmbHAFA335±0.1%Electric direct current generator
Fuel mass flow meterAVL List GmbH733S±0.1%Coriolis effect
Air mass flow meterAVL List GmbHSensyflow±0.1%Hot film anemometer
SmokeAVL List GmbH439±0.1%Hartridge, optical
N O x HORIBACLA-755A [wet]±1%Chemiluminescence detector
HCHORIBAFIA-725A [wet]±1%Flame ionization detector
COHORIBAAIA-721 [dry]±1%Nondispersive infrared detector
CO2HORIBAAIA722 [dry]±1%Nondispersive infrared detector
O2HORIBAMPA-720 [dry]±1%Magnetopneumatic detector
Combustion analyzerDEWETRONDEWE-800-CA-SE
 Piezoelectricity sensorKistler6125B11±0.3%
 Charge amplifierKistlerDAQP-CHARGE-Btime drift: 0.03 PC/s
 EncoderDEWETRONCA-RIE-360±0.2° CA