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CVS4200D 室内静水采样器
Services Available
Repair Yes
Calibration No
Free Support No

概览

CVS4200D为设计用于室内使用的静水采样器。该采样器使用可靠的、持久的真空采样技术，可进行快速的样品吸取，同时对样品本体扰动更小。管路少，因而维护频次也少。CVS4200C是一个综合的采样器，所有的样品都抽进同一个容器中；而CVS4200D为分离式采样器，将每个样品抽进独立的容器中。

优势与特点

  • 相对于蠕动泵，真空泵技术具有以下优点：
    • 精确的采样容积
    • 快速的传送速度意味着样品更具代表性
    • 对样品扰动更少
    • 最小的管路损耗，维护次数更少
    • 减少了样品的交叉污染

图像

技术说明

CVS4200D是一种室内静水采样器，将所有的水样品分别抽进独立的容器中。使用外部的真空泵抽取水样通过硬管路；而不是使用传统的蠕动泵将水引入便利的轧水管。真空泵方法的优点是更快的采样速率、更好的垂向提升、更长的采样距离和更少的维护。因为真空方法对水样扰动更少，因而更能代表原状水溶液，特别溶液含有高密度的悬浮固体时。为了防止交叉污染，采集器使用空气压力（可达28 psi）将过量的水从管路排出。

CVS4200D所配的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）、或者初始化采样器以定时基础工作。采样器还可以接入到我们的数据采集器。 我们的数据采集器可以测量浊度、水位、或者水文传感器，此外也可以基于时间、事件或测量条件来控制采样器。

产品规格

Specialized Applications Indoor, refrigerated
5/8 Inch ID Tubing Compatible Yes
Sample Container
  • One 8 L bottle, one 20 L bottle, or twenty-four 0.5 L bottles (standard clean)
  • One 10 L bottle, four 4 L bottles, eight 2 L bottles, or twelve 1 L bottles (super clean)
Enclosure Nema 1 general purpose, 14 gage steel enclosure (upper control section only) with polyester-based powder paint for corrosion resistance
Dimensions
  • 1.45 x 0.61 x 0.61 m (4.75 x 2 x 2 ft) with refrigerator
  • 0.59 x 0.43 x 0.48 m (1.92 x 1.42 x 1.65 ft) without refrigerator
Weight with Refrigerator 91 kg (200 lb)
Weight without Refrigerator 32 kg (70 lb)

Supply Voltage
Sampling System 115 Vac/60 Hz or 12 Vdc
Refrigeration and Heating Units 115 Vac/60 Hz

Vacuum System
Pinch Valve Fixed – normally open
Purge Cycle Adjustable from 1 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 500 cc or Adjustable, 500 to 1000 cc
Horizontal Sample Transport Velocity
  • 2.2 m/s (7.1 ft/s) at 7.6 m (25 ft)
  • 1.5 m/s (5 ft/s) at 30.5 m (100 ft)
  • 0.8 m/s (2.6 ft/s) at 76.2 m (250 ft)
Horizontal Maximum Transport Distance 76.2 m (250 ft)
Metering Chamber Cover Nylon
Volume Control Tube 316 stainless steel
Metering Chamber Level Electrode 316 stainless steel
Intake Hose Material Nylon-reinforced PVC
Discharge Hose Material Latex

Controller
Display 2 x 16 character backlit LCD
Touchpad 16 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
Alarm Outputs (Independent) Cycle abandoned (pulse output), Sample Fault, Container Full
Status Outputs Sample taken (pulse output)
Switches Run/off (SPST toggle), On/off (5 A lighted breaker); Heater on/off; Refrigerator on/off
Available Displays Real time clock, Process timing, Process controls, Pulse counting, Event response, Multi-level description, Flashing prompts, Diagnostics
Automatic Displays Container Full, Fault Interrupt Alternating Time Stamp, Cycle(s) abandoned

兼容性

The controller that comes with the CVS4200D 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.