2 installation guidelines, Installation – Hach-Lange SIGMA SD900 Refrigerated Sampler and All Weather Refrigerated Sampler User Manual User Manual
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Installation
3.2 Installation guidelines
CAUTION
Potential electrical and chemical hazard. Only qualified
personnel should conduct the tasks described in this section
of the manual.
WARNING
Explosion hazard. This product is not designed for hazardous
locations where combustible environments may exist.
WARNING
Fire Hazard. This product is not designed for the sampling of
flammable liquids.
Refer to the following guidelines and
when evaluating
site location.
•
If the site is located in a confined space, refer to
for safety information.
•
Make sure that the temperature at the site is within the
operating temperature range that is specified for the sampler.
•
Make sure that the intake tube is as short as possible.
•
Maximize the vertical slope of the intake tube from the sampler
to the sample source so that the tube drains completely. This
prevents cross-contamination of samples and freezing the tube.
Note: See
for limitations on transport velocity
and maximum vertical lift.
Note: If site conditions do not permit the intake tube to have a
downward slope, or if the line is pressurized, disable the liquid sensor
and calibrate the sample volume (
).
•
Install the strainer in the middle of the sample stream (not near
the surface or bottom) to make sure that a representative
sample is collected.
•
Install the sampler on a level surface.
•
Secure the AWRS cabinet to its mounting surface using the
two anchor brackets provided and the customer supplied
hardware. The instrument comes with two anchor brackets
already installed. An optional kit with two additional
brackets (6613100) can be ordered if the user wishes to
secure all four corners of the instrument. Refer to
Note: A
3
/
8
in. bolt or stud or bigger can be used to secure each anchor
bracket to the mounting surface.
•
Use the leveling feet to level the sampler. Turn the leveling
feet clockwise to raise the sampler.
The interior floor of the sampler cabinet is sloped for easy draining.
A ½ in. - 14 NPT female thread is provided on the bottom of the
enclosure to direct liquids to a drain or specific area away from the
sampler cabinet.