Specifications

Analytical Modules, continued
It is not required to power down the analyzer to remove an analytical
module. However, it is important to place the analyzer in Hold and block
gas flows.
Caution
Removal of Analytical
Module
Step Procedure
1. Place the analyzer in Hold and block gas flows.
2. Open the door to the oven compartment.
3. There will be either one or two ovens installed. For the desired
oven, remove the four thumbscrews that secure the interior
oven door and then pull out the door to expose the analytical
modules.
Note: When handling analytical modules it is important that the
manifold surfaces not get dirty or scratched. Place only on a
clean dry surface. Note that uninstalled modules may be
equipped with a reusable peel off manifold covering. If possible,
reuse this covering when a module is not installed in an
analyzer.
4. Using a 17 mm wrench, remove the bolt(s) that secure the
analytical module, and then pull the module out.
Note: When replacing module in the following step, ensure that all
o-rings on the oven manifold are in place and intact.
5. If a replacement module is available, install it. Secure using the
bolts. To prevent leaking around the manifold bolts should be
tightened to a range of 7.8 to 11.0 ft lbs. A torque wrench is
recommended (Siemens part number A5E31368510). After a
replacement is installed, the analyzer can be placed back into
operation.
6. The removed module can now be repaired on-site, tested using
the Module Hardware Tester, or returned to Siemens for repair.
7. To remove the cover from an analytical module, simply loosen
(but don’t remove) the screws around the base of the module
and lift the cover off.
8. Columns, tubing, and connectors may be replaced using
standard tools. Refer to the Model 50 repair section of this
chapter for repairs to the Model 50 valve. Refer to the
procedures on the next page for steps to replace detector
beads or detector wiring harness
A5E31405710001 4-31