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BVS4300D 室外静水采样器
Services Available
Repair Yes
Calibration No
Free Support Yes

概览

BVS4300D 是一款分离采样器，可分别存储不同样品至不同容器内。适用于室外使用，带有钢制保护外壳，可以抵抗恶劣的环境。采样器采用可靠的持续时间长的真空技术。这种方法采样迅速，并且可减少样品的干扰因素。管损耗非常小，这样便降低了维护频率。

优势与特点

  • Rapid transport velocities of samples, meaning more accurate samples—even of solids
  • All information easily controlled and viewable on a 2 by 16 character backlit LCD
  • Optional glass-door fridge and optional heater
  • Interfaces with Campbell Scientific data loggers for more measurement and control capabilities

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技术说明

BVS4300D 是一款供室外使用的静水采样器，可将水样采集至不同的存储罐中。该采样器可便携，特别适合极端的环境，采用耐蚀钢外壳，可用螺栓或锁固定在仪器面板上。

BVS4300D 利用外部真空泵通过吸管采集水样，取代了传统的蠕动泵通过轧水来采样。真空泵方法的优点：更快的采样率；更好的垂直提升；更长的采样距离；更少的维护。 这是因为真空方法为水样带来的干扰非常少，能够更好的保持水样的最初状态，特别是有高浓度悬浮物的水样。为防止交叉污染，采样器利用空气压力(up to 28 psi) 来净化管中残存的水样。

BVS4300D的控制器可接受脉冲输入(e.g.雨量计),4- 20 mA信号 (e.g. 流量计), 或接入一个样品。采样器也可与我们的数据采集器相连 我们的数据采集器可连接浊度、水位、水文气象传感器，也可按时间、事件或测量条件来控制采样器。

产品规格

Specialized Applications Outdoor, refrigerated
5/8 Inch ID Tubing Compatible Yes
Sample Container
  • One 8 L bottle, one 20 L bottle, or 24 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)
Cabinet NEMA3R
Dimensions 1.6 x 0.66 x 0.66 m (63 x 26 x 26 in.)
Weight with Refrigerator 141 kg (310 lb)
Weight without Refrigerator 109 kg (240 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 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 500 cc
  • Adjustable, 500 to 1000 cc
Horizontal Sample Transport Velocity
  • 2.2 m/s (7.1 ft/s) at 7.6 m (25 ft)
  • 1.9 m/s (6.2 ft/s) at 15.2 m (50 ft)
  • 1.7 m/s (5.6 ft/s) at 22.9 m (75 ft)
  • 1.5 m/s (5 ft/s) at 30.5 m (100 ft)
  • 1.2 m/s (4 ft/s) at 53.3 m (175 ft)
  • 1.1 m/s (3.7 ft/s) at 61 m (200 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 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
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

兼容性

The controller that comes with the BVS4300D can accept a pulse input (such as from a rain gage) or a 4 to 20 mA signal (such as from a flow meter), or it can 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.