USER MANAUL
MGA
prime Q
MRU GmbH, D-74172 Neckarsulm
18 /
117
The injection of phosphoric acid (10 %) is necessary for a correct
measurement.
•
The injection guarantees constant conditions in the gas cooler, so
that you can measure dry or humid flue gas.
•
The use of phosphoric acid (10%) reduces losses of SO
2
, NO
2
on
the humid surfaces of the gas cooler.
Both effects increase measurement accuracy by preventing slow drift ef-
fects caused by slowly forming or saturating moisture films.
Two pumps inject 24ml (2*12ml) of phosphoric acid (10%) per hour dur-
ing the measurement.
See also chapter Connecting Acid Dosing Unit APE, Page 50 to
connect the Acid Dosing Unit APE to the analyser.
