Ecotech Serinus 44 - 6.3.3 DFU Replacement; 6.3.4 NH3 Scrubber Replacement

Service
Page 117
Figure 55 – Removing the Fan Filter
6.3.3 DFU Replacement
Equipment Required
 5/8” Spanner
Procedure
1. Turn off the external pump and allow the analyser to return to ambient.
2. Loosen the Kynar nuts from both ends of the DFU.
3. Remove and replace the DFU (refer to Figure 56 right hand side of the DFU in the image should
connect to the dryer) and tighten the Kynar nuts.
Figure 56 – DFU Filter
6.3.4 NH
3
Scrubber Replacement
Equipment Required
 5/8” Spanner
Procedure
1. Disconnect the external pump.
2. Locate the two scrubbers inside the instrument. Undo the Kynar nuts at both ends of each
scrubber and remove the scrubbers.
3. Remove the Kynar nuts on both ends of each new replacement NH
3
scrubber and install them
into the instrument using the existing nuts.