Automatic Composite Samplers
for Stormwater Runoff
TR-4000 Series |
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Collect composite samples automatically when criteria
are met. No need to be on site for sampling!
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> Composite,
time-weighted samples in a single bottle
or
> Discrete ("first flush")
grab samples.
Triggered by rainfall amount or water
level — depending
on model. |
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Not for flow-proportional sampling. |
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Applications:
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Benefits:
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NPDES (Municipal, Industrial, Construction) |
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Collect composite or discrete samples
triggered by rainfall, water level or, as an option, by
water depth (pressure) and time increments. |
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Watershed Assessments |
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Minimize unnecessary (and
costly) site visits. |
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Erosion Control |
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Obtain and document site-specific
rainfall data and sampling times. . |
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Academic Research |
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Agriculture and forestry |
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Monitor and sample storm events
remotely to minimize site visits (with web-enabled units only). |
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Civil Construction |
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Geology and Mining |
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The TR-4000 Series Storm Water Samplers line comprises three models
of similar sampling capabilities. The selection
table provides further details.
>
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The TR-4000 model is the stand-alone unit.
It includes the rain collector.
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>
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The TR-4002 is similar to TR-4000
but comes with a solar panel. |
>
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The TR-4001 is identical to the TR-4000 but
it does not include the rain
collector and the sample bottle is
of a
different size. It is is intended to be triggered only by the
water level sensor only. Consequently, the controller is configured
somewhat differently. |
The sampling cycle may be activated by any one of the
following triggers. After the sampling cycle has started, subsequent
samples are pulled at preset time intervals.
| Trigger Type |
Trigger Values |
TR-4000 TR-4002 |
TR-4001 |
| Rainfall Amounts |
The threshold may be pre-set in 0.01" increments
(with a minimum of 0.1 in) |
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| Water Level |
The water detector sensor may be positioned at
the desired trigger level. The height accuracy for the float sensor
is ± 1/16" |
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The following parameters are user-defined for a given sampling
cycle:
•
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Rainfall trigger level (from 0.10
to 9.99 in) |
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Time between samples (from 5 min to 24 hr)
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Sample size (from 100 mL to 10L). Actual sample
size will vary with head and sample size selected. |
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Number of samples (from 1 to 99) |
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Sample jug/bottle size (from 1 to 10 L). Actual
max. volume depends on the sample bottle used. |
Internal logic prevents the user from inputting sample sizes
and number of samples such that the composites would exceed the size
of the jug.
The water detection sensor is triggered by a preset level
of water near the pick up tube. If the water level is sufficient, It
allows the pump to be activated; if there is not enough water, it prevents the pump
from trying to take a sample. This guards against trying to collect a
sample
during a qualifying rain event when the runoff is not sufficient at
the collection point.
The unit will pick up the prescribed number of samples
of the pre-set volume at the pre-set time intervals. If there is no water
when a sample
must be taken, the unit will report "No Water" for that event
and will continue the cycle until completion. The controller will be
re-set when the sample bottle is removed.
The built-in controller allows setting parameters (sample interval,
sample volume, rainfall, water detection activation, event delay, date & time,
24 hr. period) and viewing rainfall amounts, time & date stamp, and
battery voltage on site. To minimize power consumption, the unit goes
automatically into sleep mode and wakes up on the first count from the
rain bucket or activation of any input on the control panel.
The standard unit includes a 20 ft sample pick up tube with weighted
stainless steel strainer, self-emptying
tipping rain gauge with 40 ft
cable, water level sensor, one 10 (2.64 gal) polyethylene sample bottle
and a rechargeable 7.5 Ah gel cell battery with a 110 volt (ac) battery
charger. A solar panel with 9 ft cable is an option on the stand alone
model and is standard on the web enabled unit.
The sampler enclosure is lockable, water resistant, and vented to protect
the electronic components.
Features: |
TR-4000
|
TR-4002 |
TR-4001 |
| Reports rainfall amount, date and time, collector status,
and voltage |
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| Rain gauge counter resets automatically every 24 hr if desired |
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| Low battery alarm |
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| Rainfall measured in inches (0.01" increments) |
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| E-mail notification for rainfall events, "bottle full" and low
battery voltage. |
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| Solar powered with 7.5 Ah battery back up |
Optional
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Included |
Optional |
| Sleep mode to conserve energy. |
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| Variable sample size, number of samples and time increments between
samples |
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| Sample bottle size |
2
gal
|
2
gal
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| Automatic “back flush” after every sample event |
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| Vented case and protected electronics |
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The selection table provides further
details and compares the above samplers to others in our line.
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TR-4000 |
Composite Sampler,
stand-alone unit |
TR-4001 |
Composite
Sampler triggered by water level only |
Option: |
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Pressure
transducer assembly for water pressure trigger |
Accessories: |
TR-3011 |
Shelf for Rain
Gauge |
600727 |
Universal Tripod |
TR-3013
|
Smart
Battery Charger
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> Download
the brochure (PDF,
440 KB)
> Specifications
on the rain collector
> Operator's
Manual
> Battery
Care
> Warranty >
> Image
Gallery for TR-4000 Series
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