Hach-Lange PHOSPHAX indoor sc - Manual (Page 66)

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Plumbing and connection options
A.2 Connect a 2-parameter option
The 2-parameter configuration is required for Options 4, 6, 8b, 9b,
10b, and 11b.
When using a continuous sample the PHOSPHAX sc can measure
one parameter: PO
4
3– . To operate a second parameter with the
same continuous sample (i.e. ammonium measured by the
AMTAX sc) the sample line must be connected to the overflow
vessel of the first instrument in the row. For this purpose, the first
instrument must be modified to the 2-parameter variant.
Note: The 2-parameter configuration applies to outdoor and indoor options
and to one and two-channel options (Ch1 + Ch2).
Refer to Figure 25 and following instructions to connect a
2-parameter configuration.
1. Remove the small blind plug (item 1, Figure 25 ) from the top
hole on the overflow vessel. Remove the large fitting (item 2)
from the bottom hole on the overflow vessel. Discard the plug
and fitting.
2. Slide the small fitting (union and ferrule, item 3) over the tubing
(item 5). Cut the tubing flush with the ferrule.
3. Install the small fitting to the top hole on the overflow vessel to
take the sample to the second analyzer.
4. Close the bottom hole with the large blind plug and sealing
washer (item 4).
Note: Always connect the front overflow vessel for the first instrument
to the front overflow vessel for the second instrument.
Figure 25 Modify the first instrument to a 2-parameter option
1 Small plug 4 Large plug LZY193
2 Large fitting 5 Tubing LZY195
3 Small fitting and ferrule LZY111 6 To second analyzer