BLZZRD
™
Portable Refrigerated Sampler
Section 2 Installation/Preparation
2-18
2.8.2 Tips for Routing
Suction Line and
Strainer
Route the line so that it runs continuously downhill from the
sampler to the liquid source. This helps drain the line during
pre-sample and post-sample purges. When the sampler is used in
below freezing temperatures, there is a risk of the suction line
being frozen. A suitably warm sampling source can usually
prevent this, provided there are no loops in the suction line.
Some situations may require more protective measures, such as
insulation of the suction line, or heat tape. Thoroughly draining
the suction line minimizes the possibility of frozen liquid
clogging the line.
For representative samples, place the strainer in the main
current of the flow stream, not in an eddy or at the edge of flow.
Placing an intake at the bottom may produce samples with
excess heavy solids and no floating materials, while placement at
the top may produce the opposite conditions.
2.8.3 Pressurized Lines
The sampler can obtain samples from pressurized lines, as long
as the line pressure remains below 15 PSI (pounds per square
inch). Pressures greater than 15 PSI may prevent the sampler
from purging the suction line; moreover, extreme pressures can
force liquid past the pump, even when the pump is not running.
For more consistent sample volumes from lines under constant
pressure, calibrate the samples.
Table 2-1 Selecting the Right Strainer
Strainer
Dimensions
Application Maximum Depth
3/8 Stainless
Steel Ends,
Polypropylene
Center
Routine
app li ca -
tions.
Vinyl Line:
22 feet (6.7m).
PTFE Line:
15 feet (4.5m).
3/8
Stainless Steel
Low Flow
Low flow
app li ca -
tions
Vinyl Line:
22 feet (6.7m).
PTFE Line:
15 feet
(4.5m)
.
3/8
CPVC
H ig hl y
acidic
liquids.
Vinyl Line:
4 feet (1.2m).
Note
•
The suction lines will float when filled with air during the purge cycles and when depths exceed the
listed ratings. Secure the suction lines when sampling at depths exceeding the maximum ratings.
•
All strainer dimensions are in inches.
•
PTFE suction line is compatible only with the
3
/
8
stainless steel strainer.
1-1/4
.400
Diameter
Diameter
1
10.5
.400
diameter
7
1
3/4
diameter
.400
diameter
1
11.5
1- 5/16
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Страница 16: ...BLZZRD Portable Refrigerated Sampler Table of Contents xiv ...
Страница 34: ...BLZZRD Portable Refrigerated Sampler Section 1 Introduction 1 18 ...
Страница 58: ...BLZZRD Portable Refrigerated Sampler Section 2 Installation Preparation 2 24 ...
Страница 72: ...BLZZRD Portable Refrigerated Sampler Section 3 Programming Introduction 3 14 ...
Страница 88: ...BLZZRD Portable Refrigerated Sampler Section 4 Standard Programming 4 16 ...
Страница 219: ...BLZZRD Portable Refrigerated Sampler Appendix B Material Safety Data Sheets B 8 ...
Страница 233: ...BLZZRD Portable Refrigerated Sampler Appendix D Replacement Parts D 6 ...
Страница 241: ...BLZZRD Portable Refrigerated Sampler Appendix F Battery Selection Guide F 4 ...