这个产品是无效的.
| Services Available | |
|---|---|
| Repair | Yes |
| Calibration | Yes |
| Free Support | Yes |
概览
PVS4120C 是一款轻型便携的由电池供电的综合水采样器，抽取水样到一个容器中。PVS4120C 包含一个可编程的控制器，带有16-键的直观触摸板。控制器可以接受脉冲输入（例如：雨量筒）、4到20 mA信号（例如：流量计）或基于时间来初始化采样。控制器还可以接入我们的数据采集器，测量多种传感器，同样可以基于时间、事件或测量的条件来控制采样器。
优势与特点
- Lightest composite sampler offered by Campbell Scientific—weighing only 12 kg
- 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 data loggers for more measurement and control capabilities
图像
技术说明
PVS4120C 使用外部真空泵，抽取水样流过采样管，而不是使用蠕动泵将水样轧入软管。真空泵方法的优点包括更快的采样速率和更长的采样距离，以及更少的维护。因为真空方法对水样扰动更小，因此采集的水样更能代表原始的水体溶液，特别是高浓度悬浮固体的溶液。
PVS4120C 所使用的真空泵要小一些，重量也更轻，能够按5 英尺/秒的速率水平抽取多达25英尺外的水样。
PVS4120C 机箱的材质是模塑的中等密度的线性聚乙烯，可忍受恶劣的环境条件和天气。它的总进样器具有一个隔离环和一个空腔，可对样品的温度提供更多的控制。
产品规格
| Enclosure | Molded medium-density linear polyethylene, three-piece construction and stainless-steel fittings |
| Integral Battery | 115 Vac/60 Hz or 12 Vdc |
| Cooling System | Insulated container wall cavity space for ice |
| Height |
|
| Body Case Diameter | 42.8 cm (16.85 in.) |
| Sampler Weight | 10.4 kg (23 lb) without battery |
| Battery Weight | 1.8 kg (4 lb) |
Vacuum System |
|
| 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 | 8.71 L (2.3 gal) |
| Horizontal Sample Transport Velocity |
|
| Maximum Distance | 67 m (220 ft) |
| Metering Chamber Cover | Nylon |
| Volume Control Tube | 316 stainless steel |
| Metering Chamber Level Electrode | 316 stainless steel |
| Discharge Hose Material | Latex |
Controller |
|
| Display | 2 x 16 character backlit LCD |
| Touchpad | 6 key (with multi-level menu) |
| Start Delay | Disabled, Time/Day, Pulse Count, 4 to 20 mA (0 to 100 pulses/min.), External Contact, Level Control |
| Sample Initiation | Disabled, Time/Day, Pulse Count, 4 to 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 |
兼容性
Controller
The PVS4120C 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.
