Plumbing; Sample Line Guidelines - Hach 2200 PCX User Manual

This instrument is rated for an altitude of 2000 m (6562 ft) maximum. Use of this instrument at an
altitude higher than 2000 m can slightly increase the potential for the insulation to breakdown, which
can result in an electric shock hazard. The manufacturer recommends that users with concerns
contact technical support.
Attach the instrument upright and level on a flat, vertical surface. Refer to Figure 4 for dimensions.
Mounting hardware is supplied by the user. Make sure that an electrical outlet is available that is
above flood stage areas. If purchased with the instrument, install the standard water weir flow
controller so that the sensor outlet of the instrument is lower than the water weir overflow. Refer to
Figure 1 on page 6.
Figure 4 Installation dimensions

Plumbing

D A N G E R
Fire hazard. This product is not designed for use with flammable liquids.

Sample line guidelines

Select a good, representative sampling point for the best instrument performance. The sample must
be representative of the entire system.
To prevent erratic readings:
• Collect samples from locations that are sufficiently distant from points of chemical additions to the
process stream.
• Make sure that the samples are sufficiently mixed.
• Make sure that all chemical reactions are complete.
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