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3.6.2 Plumb the sample and drain lines
Chemical exposure hazard. Dispose of chemicals and wastes in accordance with local, regional and
national regulations.
1. Use the supplied 6/8-mm OD tubing to connect the sample drain fitting to an open drain, open
funnel or open collection vessel. Make sure to obey local regulations for waste disposal. Refer to
Figure 1
on page 7.
The drain tubing must be 1.2 m (4 ft) or less in length. Refer to
2. Connect the sample supply line to the sample inlet fitting with 4/6-mm OD tubing. The sample
tubing is supplied by the user.
Note: The sample inlet fitting will leak if the orientation of the nut is not correct.
3. Make sure that there is no air or particles in the sample supply line.
3.6.2.1 Drain line guidelines
Incorrect installation of the drain lines can cause liquid to go back into the instrument and cause damage.
• Make the drain lines as short as possible.
• Make sure that the drain lines have a constant slope down (2.54 cm (1 inch) or more vertical
decrease for each 0.3 m (1 ft) length of tubing).
• Make sure that the drain lines do not have sharp bends and are not pinched.
• Do not connect the drain lines to other lines because backpressure or damage to the analyzer can
occur.
• Make sure that the drain lines are open to air. Refer to the example in
Figure 4 Drain line is open to air
Section 4 Startup
Inhalation hazard. Do not connect the sample conditioning bottle to the measuring cell until after startup or
exposure to DIPA or ammonia vapors will occur.
1. Make sure that the sample flow rate, temperature and pressure of the sample supply line are
within the values in
2. Open the valve on the sample supply line to start the sample flow.
12 English
C A U T I O N
N O T I C E
C A U T I O N
Specifications
on page 3.
Drain line guidelines
on page 12.
Figure
4.
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