Analysis

Apparatus

Sensor

Measured

Range

Accuracy

Biogas analysis

MRU-OPTIMA7

NDIR

CH4

0% - 100%

±0.3% or 5%

CO2

reading

Electronical

H2S

0 - 2000 ppm

±10 ppm

O2

0% - 25%

±0.2 Vol% abs

Substrate analysis

WTW Inolab Cond 7110

nd

Salinity

0 - 70 ppt

Nd

Conductivity

0 - 1000 Ms/cm

±0.5%

Temperature

−5˚C - 105˚C

±0.1˚C

Hanna HI98127

Electrode HI73127

pH

pH 2.0/16.0

±0.1 pH