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Overview
The PVS4150C is a portable, battery-operated water sampler designed for easy transport. It deposits its water samples into one nine liter container. The PVS4150C 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.
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Benefits and Features
- Very easy to transport with suitcase shape, built-in wheels, and telescoping handle
- 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
- Interfaces with Campbell Scientific data loggers for more measurement and control capabilities
- Quick connectors facilitate intake hose removal
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Detailed Description
The PVS4150C has a watertight enclosure constructed of strong, lightweight, HPX® resin. Designed for easy transport, the enclosure includes four press and pull latches, three soft-grip handles, in-line wheels, telescoping handle, and flush hinges. It also has two hasps that can be padlocked, and quick connectors that facilitate intake hose removal. The enclosure has cavity space for two Zero-Pak gel ice packs (pn 12396) to control the sample temperature.
The PVS4150C 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 PVS4150C is smaller than our larger models. Its lightweight pump is able to take samples at over 5 ft/sec for horizontal draws of up to 25 ft. An optional pressure/vacuum gage allows customers to know that the pump is functioning properly. (See the Ordering information.)
Specifications
| Enclosure | HPX high-performance resin; press and pull latches and soft-grip handles |
| Integral Battery | 12 Vdc, 7 Ahr (with external charger and cable) |
| Cooling System | Cavity space for two Zero-Pak (pn 12396) |
| Dimensions | 62.5 x 50 x 36.6 cm (24.6 x 19.7 x 14.4 in.) |
| Sampler Weight | 16.1 kg (35.5 lb) without battery |
| Battery Weight | 1.8 kg (4 lb) |
Vacuum System |
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| Pinch Valve | Fixed – normally open |
| Purge Cycle | Adjustable from 5 to 99 s |
| Suction Cycle | Variable (Adjusts automatically to double the input value of the purge time setting or until liquid contacts level electrode in metering chamber.) |
| Sample Volume | Adjustable, 50 to 250 cc |
| Horizontal Sample Transport Velocity |
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| Horizontal Sample Transport Maximum Distance | 67 m (220 ft) |
| Metering Chamber Cover | Nylon |
| Volume Control Tube | 316 stainless steel |
| Metering Chamber Level Electrode | 316 stainless steel |
| Sample Container | HDPE, 9 L (2.3 US gallon) |
| Discharge Hose Material | Latex |
Controller |
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| Display | 2 x 16 character backlit LCD |
| Touchpad | 6 key with multi-level menu |
| Start Delay | Disabled; Time/Day; Pulse Count; 4-20 mA (0 to 100 pulses/min.); External Contact; Level Control |
| Sample Initiation | Disabled; Time/Day; Pulse Count; 4-20 mA (0 to 100 pulses/min.); External Contact; Level Control |
| Program Type | Composite; Multi-Composite; Consecutive; Daily Cycle; Timed Step |
| Clock | Real-time clock and operating system |
| Direct Function Keys | Manual sample; Manual purge; Manual bottle advance; Restart |
| Switches | Controller “on/off” (SPST toggle) |
| Available Displays | Real-time clock; process timing; process totals; pulse counting; event response; multilevel descriptions; flashing prompts; diagnostics |
| Automatic Displays | Container Full; Fault; Power Interrupt (program resumed); Alternating Time Stamp; Cycle(s) abandoned |
Compatibility
Controller
The PVS4150C 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 data loggers. Our data loggers can measure nearly any turbidity, water level, or hydrometeorological sensor, as well as control the sampler based on time, event, or measured conditions.
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