Limas11: Thermal Link Replacement - ABB Advance Optima magnos206 Operator's Manual

Limas11: Thermal Link Replacement

When should a
thermal link be
replaced?
Thermal Link
Replacement
(see Figure 9-5)
Figure 9-5
Thermal Links in the
Limas11 Analyzer
Module
42/24-10 EN Rev. 9
A defective thermal link will usually be indicated by an Insufficient Sample Cell
Temperature (T-Re.K) or Lamp Temperature (T-Re.L) error message (see "Status
Messages" section, page 10-11). In this case check the thermal link and replace as
necessary.
Step Action
1 Turn off the gas analyzer power supply.
2 Open the wall housing door or the 19-inch housing cover.
The sample cell and the lamp are hot (approx. 55 / 60 °C)!
3 Disconnect the thermal link from the sample cell 1 and / or the lamp 2.
4 Release the spring clips and/or retainer and pull the thermal link from
the opening.
5 Check the continuity of the thermal link; if necessary, insert a new
thermal link (part number 0745836) in the opening and secure it with
the spring clips and/or retainer.
6 Connect the thermal link.
7 Close the system housing.
Light penetration during operation leads to erroneous measure-
ment values and measurement range overflows ("Intensity"
status message).
8 Turn on the gas analyzer power supply.
2
1 Sample cell thermal link
2 Lamp thermal link
Chapter 9: Inspection and Maintenance
1
9-9