Designed as an Atomospheric Precipitation
Sampler (A.P.S.) for accurately separating and collecting both total
precipitation and total particulate deposition for later laboratory
analysis of pH, conductivity, and specification. |
| The Model A.P.S. is designed for severe
environments with a main frame constructed of heavy gauge aluminum and
powder coated, and holds two symmetrically placed collections. The
collectors have a common garbled-roof cover with international sealing
surface. |
The TE-78-100 APS is designed to collect
precipitation in two containers – one container is open only
during precipitation and the other container remains open between
precipitation events. This allows dry deposited material to be
collected also. A specially designed sensor detects precipitation and
activates the motor, which in turn transfers the cover from the wet
container to the dry container. When the precipitation event is over
the cycle is reversed. The most outstanding feature of this unit is the
simplicity of design, reliability of the operating components, and the
quality of the materials.
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Specifications
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- A recording elapsed time indicated is included
as standard equipment.
- An on/off indicator light is provided for
visual inspection.
- A cycle counter designed to record the number
of open/close cycles during any time period.
- A rugged sensor detects precipitation episodes
and activates the cover drive to seal the dry deposition collector and
expose the wet precipitation collector
- The control consists of high input impedance
schmidt trigger and a relay driver.
- The drive system consists of a motorized ball
screw actuator, a four-bar linkage and two limit switches.
- The collectors segregate dry and wet samples.
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