PP Systems CIRAS-3 - Page 176

CIRAS-3 Operation Manual V. 1.09 176 support@ppsystems.com
95
Flow Rate through the Reference Cell
too Low [95]
Check the reference pump (including electrical
connection). Clean with alcohol (to remove built up
dust or dirt) or replace the reference pump. See
Servicing the Air Sampling Pump (Reference &
Analysis). On page 181. Also check that the Zero
and CO
2
/H
2
O control manifolds are properly seated
in their respective manifolds and all associated “O”
rings are not pinched off or cracked. Also check the
internal hydrophobic filter.
96
Flow Rate through the Analysis Cell too
High [96]
Check the analysis pump (including electrical
connection) and any kinks that might be causing
restriction. Clean or replace the analysis pump.
See
Servicing the Air Sampling Pump (Reference &
Analysis). On page 181. Also check that the Zero
and CO
2
/H
2
O control manifolds are properly seated
in their respective manifolds and all associated “O”
rings are not pinched off or cracked. Also check the
internal hydrophobic filter.
97
Flow Rate through the Analysis Cell too
Low [97]
Check the analysis pump (including electrical
connection). Clean with alcohol (to remove built up
dust or dirt) or replace the analysis pump. See
Servicing the Air Sampling Pump (Reference &
Analysis). On page 181. Also check that the Zero
and CO
2
/H
2
O control manifolds are properly seated
in their respective manifolds and all associated “O”
rings are not pinched off or cracked. Also check the
internal hydrophobic filter.
98
Analysis Temperature > 65° [98]
IRGA temperature has exceeded the normal 55
o
C
indicating a thermostat failure. Contact PP
Systems.
99
Analysis Temperature < 50° [99]
IRGA temperature not reaching the normal 55
o
C
indicating a thermostat failure. Contact PP
Systems.