The PVS4120D is a light-weight, portable, battery-operated water sampler that deposits its water samples into 24 containers. It includes a programmable controller with 16-key intuitive touch pad. The controller can accept a pulse input (e.g., rain gage), a 4- to 20-mA signal (e.g., flow meter), or initiate a sample on a timed basis. The sampler can also be interfaced with our dataloggers to measure a variety of sensors, as well as control the sampler based on time, event, or measured conditions.
PVS4120D Benefits
Lightest discrete sampler offered by Campbell Scientific—weighing only 12 kg
Vacuum technology benefits over peristaltic pump samplers:
Accurate sample volumes
Rapid transport velocities mean more-representative samples
Less disturbance of sample
Minimal wear on the tubing, resulting in less-frequent maintenance
Reduced cross-sample contamination
Side handles for easy lifting (increases diameter)
Handcart available for easy transport
Stainless-steel suspension harness offered for sampling in sewer systems
Interfaces with Campbell Scientific dataloggers for more measurement and control capabilities
Technical Description
The PVS4120D uses an external vacuum pump to draw water through intake tubing, instead of the traditional peristaltic pump that induce flow by squeezing flexible tubing. Advantages of the vacuum pump method include faster sampling rates, longer sampling distances, and less maintenance. Because the vacuum method disturbs the water samples less, they better represent the original water solution, especially if the solution has high concentrations of suspended solids.
The pump in the PVS4120D is smaller than our larger models. The lightweight pump is able to take samples at over 5 ft/sec for horizontal draws of up to 25 ft.
The enclosure of the PVS4120D is a molded medium-density linear polyethylene, designed to handle tough environmental challenges and weathering. The hub has an insulated ring and a cavity for crushed ice, giving more control over the temperature of the samples.
The PVS4120D is a light-weight, portable, battery-operated water sampler that deposits its water samples into 24 containers. It includes a programmable controller with 16-key intuitive touch pad. The controller can accept a pulse input (e.g., rain gage), a 4- to 20-mA signal (e.g., flow meter), or initiate a sample on a timed basis. The sampler can also be interfaced with our dataloggers to measure a variety of sensors, as well as control the sampler based on time, event, or measured conditions.
PVS4120D Benefits
- Lightest discrete sampler offered by Campbell Scientific—weighing only 12 kg
- Vacuum technology benefits over peristaltic pump samplers:
- Accurate sample volumes
- Rapid transport velocities mean more-representative samples
- Less disturbance of sample
- Minimal wear on the tubing, resulting in less-frequent maintenance
- Reduced cross-sample contamination
- Side handles for easy lifting (increases diameter)
- Handcart available for easy transport
- Stainless-steel suspension harness offered for sampling in sewer systems
- Interfaces with Campbell Scientific dataloggers for more measurement and control capabilities
Technical Description
The PVS4120D uses an external vacuum pump to draw water through intake tubing, instead of the traditional peristaltic pump that induce flow by squeezing flexible tubing. Advantages of the vacuum pump method include faster sampling rates, longer sampling distances, and less maintenance. Because the vacuum method disturbs the water samples less, they better represent the original water solution, especially if the solution has high concentrations of suspended solids.
The pump in the PVS4120D is smaller than our larger models. The lightweight pump is able to take samples at over 5 ft/sec for horizontal draws of up to 25 ft.
The enclosure of the PVS4120D is a molded medium-density linear polyethylene, designed to handle tough environmental challenges and weathering. The hub has an insulated ring and a cavity for crushed ice, giving more control over the temperature of the samples.
