42/24-10 EN Rev. 9
Chapter 9: Inspection and Maintenance
9-3
Magnos27: Thermal Link Replacement
The service handbooks describe the procedure for replacing the Caldos25,
Caldos27, Magnos206 and Uras26 thermal link.
When is replacement
needed?
The thermal link should be replaced if a thermal link failure is the probable cause of a
temperature error (see also “Caldos25, Caldos27, Magnos206, Magnos27
Problems” section, page 10-18).
Step Action
1
Turn off the gas analyzer power supply.
2
Open the wall housing door or the 19-inch housing front plate.
3
Disconnect the thermal link from the thermostat connection
terminals
2
.
4
Bend back the thermal link spring clips on the cable guide and pull
the thermal link
1
from the cavity in the thermostat annular heater.
5
Insert a new thermal link (part number 0740712) in the cavity and
close the spring clips.
6
Connect the new thermal link to the thermostat connection terminals.
7
Close the system housing.
Thermal Link
Replacement
(see Figure 9-2)
8
Turn on the gas analyzer power supply.
Figure 9-2
Location of Magnos27
Analyzer Module
Thermal Link
1 2
1
Thermal
Link
2
Thermostat
Connection
Terminals