3.
Check PTFE lines for kinks.
4.
Check all hose fittings for tight seat.
5.
Check analyzer cabinets for cleanness, dryness and freedom from corrosion.
6.
Check all electric connections for freedom from corrosion and tight seat.
7.
Check grounding conductors are free from corrosion.
8.
Check the test gases:
°
Use-by date
°
Fill level
°
Condition of cylinders
10.6.2
Checking operation
Procedure
1.
Check the display of the control unit for pending error messages.
2.
Check measured values for plausibility.
3.
Check the flow on the flowmeter (in the distribution unit): Approx. 100 l/h. Set on
the flowmeter if required.
4.
Check that the sample gas line is significantly warmer than the ambient tempera‐
ture. This checks whether the sample gas line is heating.
10.6.3
Checking the sample gas ine filter
Overview
The sample gas fine filter is located in the distribution unit.
Procedure
1.
Check the sample gas fine filter for contamination (discoloring).
✓
White color: The sample gas fine filter is OK.
If heavily contaminated, replace the sample gas fine filter.
Related topics
•
see "Replacing the sample gas fine filter", page 83
10.6.4
Checking the water trap
Overview
The water trap is located in the sample conditioning and distribution unit.
The gas flow is blocked when the water trap is saturated.
Procedure
1.
Check the water trap for contamination (discoloration) or replace after one year.
The water trap must be replaced when heavily soiled.
Related topics
•
Replacing the water trap:
see "Replacing the water trap", page 84
10
MAINTENANCE
72
O P E R A T I N G I N S T R U C T I O N S | MARSIC280
8021339/1CHC/V1-1/2021-07 | SICK
Subject to change without notice
