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airmetrics便携式采样器

简要描述:

airmetrics便携式采样器:MiniVol TAS便携式空气粉尘(TSP,PM10,PM2.5采样器)美国AIRMETRICS便携式空气采样器MiniVolTM,USEPA认可, 一台仪器即可采样PM10、PM2.5、TSP。有四种不同配置满足用户不同的需求。环境监测,TSP(总悬浮颗粒),PM10, PM2.5(可吸入颗粒)采样,汽车排放和交通影响研究.

更新时间:2016-11-04

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airmetrics便携式采样器

MiniVol美国airmetrics便携式PM2.5采样器 MiniVol TAS


美国AIRMETRICS便携式空气采样器MiniVolTM,USEPA认可,一台仪器即可采样PM10、PM2.5、TSP。有四种不同配置满足用户不同的需求。

airmetrics便携式采样器技术说明:

泵:
(1) 双头隔膜
(2) 能进行1000小时不停工作
(3) 无电刷直流电马达
(4) zui大流量6升/分钟
材质:
(1) 外壳采用防风雨的PVC材料
(2) 2点支架固定
(3) 尺寸:直径:178毫米 高:456毫米
(4) 重量:8.164Kg(包括电池重量)
(5) 采样器顶部可快速打开
记时器:
(1) 电池可支持7天进行程序工作
(2) 每天可进行多达6次采样
滤纸支架组件:
(1) 间接进样设计
(2) 浮质47毫米过滤容器带有FRM样式的过滤盒
(3) 分离器易于取出清洗
电气系统:
(1) 恒流控制电路
(2) 交/直流操作
(3) 可变流量调节
(4) 记时器
(5) 低电池低流量显示及自动关闭
电池:
(1) 携带方便
(2) 12A 可使用24小时
(3) 充电时间需要16小时

可承受的费用-费用仅为高容量联邦参考方法(FRM)采样仪的一小部分
• 便携式-可充电池操作;简易,质轻
• 通用性-可用于微粒物质(PM10、PM2.5、TSP),易于现场使用
• 精确性-提供与高容量FRM采样仪结果具有可比性的空气质量数据
• 坚固性-从埃及开罗的砂到挪威的极寒粉尘,MiniVolTM已经证明它在世界范围内的持久性
• 技术-MiniVolTM的低流量技术(5l/min)是与美国EPA和Airmetrics共同发展的,微粒尺寸分离是通过压紧来完成,气体样品与微粒的采集同时完成。

airmetrics便携式采样器性能特点:

经济实惠:价格仅是大流量FRM采样器的几分之一。
轻巧便携:体积小、重量轻、内置充电电池供电。
功能多样:可用于悬浮颗粒采样(PM10、PM2.5、TSP)。
精确可靠:提供的空气质量数据与FRM采样器具有可比性。
应用环境:MiniVol能在任何恶劣天气下工作,无论在沙漠地带,还是在天寒地冻的挪威朗伊尔城都可正常使用。

MiniVol美国airmetrics便携式PM2.5采样器技术条件:
MiniVol采用的低流量技术(0-10升/分钟)已被USEPA和Airmetric联合认证。使用PM10和PM2.5切割头碰撞分离不同粒径尘埃颗粒, 同时还可进行气体采样。

MiniVol美国airmetrics便携式PM2.5采样器应用领域:
环境监测,科学研究,高校,TSP(总悬浮颗粒),PM10、PM2.5(可吸入颗粒)采样,汽车排放和交通影响研究,健康与劳动防护,工业卫生。

MiniVol美国airmetrics便携式PM2.5采样器技术说明:
空气采样泵:可靠的双头隔膜泵能进行1000小时不停工作,无电刷直流电马达,zui大流量10 升/分钟。
材   质:外壳采用聚丙烯共聚物,采样器的控制面板为前门式,便于操作。
外 形 尺寸:  19.75"x12"x18"。
记 时 器:电池可支持7天进行程序工作,每天可进行多达6次采样。
滤   纸:47毫米纤维滤膜(仅用于称重),47毫米Teflon滤膜(用于重量和无机化学分析),47毫米石英滤膜(用于重量和无机化学分析)。
分 离 器:易于取出清洗。
电 气 系统:  恒流控制电路,可变流量调节交/直流操作,记时器,低电池低流量显示及自动关闭。
电   池:携带方便,配备2个高容量锂电池,一用一备。每个电池可连续使用60小时,充电时间为6小时。

PM2.5采样器配套滤膜及校正组件(可选)
1. 纤维滤膜:直径47 mm ,50个/盒(重量分析用)
2. 石英滤膜:直径47 mm ,100个/盒(重量及有机化学分析用)
3. 铁氟龙滤膜:直径47 mm ,50个/盒(重量及无机化学分析用)
4. 校正组件,带数字压力

MiniVol美国airmetrics便携式PM2.5采样器国内主要客户:
1、国家气象局(15台) 
2、上海石化环境监测中心 
3、复旦大学 
4、同济大学 
5、厦门大学 
6、中国矿业大学 
7、兰州大学 
8、上海大学 
9、上海浦东环境监测站 
10、新疆农业大学 
11、福建环境监测中心站 
12、咸阳市环保局 
13、香港环境保护署 
14、USEPA(美国环保总署)USDA(美国农业部)US ARMY(美国军方)
15、中国地质科学院

以上仅为我们采样器的一部分客户。 

美国EPA鼓励美国州一级和地方的空气监测部门使用非参比方法的小型便携式采样器,做多点的短期污染监测研究。 

Airmetrics这款仪器的设计理念是"Saturate" ,即在一个地区广泛使用操作简单、相对低成本的过滤采样器,来评估高污染地区和正在开发的区域内的空气质量。

使用 Airmetrics采样器的附加数据,帮助当地的空气污染控制部门评估他们的监测网是否能达到EPA颁布的40CFR Part 58条的规定范围。

广泛的布点监测还能够构画出污染浓度的空间分布图,或借助于接收模型估算出污染源的贡献。

MiniVol美国airmetrics便携式PM2.5采样器
 

订货号 名称 描述
100-000-T5-1 便携式PM10采样器 Minivol PM10 可用于PM10
100-000-T5-2 便携式PM2.5采样器Minivol PM2.5  可用于PM2.5,PM10
7212 纤维滤膜(直径47 mm) 50个/盒,用于重量分析用
1851-047 石英滤膜(直径47 mm) 100个/盒,用于重量及有机化学分析
7592-104 铁氟龙滤膜(直径47 mm) 50个/盒,用于重量及无机化学分析
600-003 野外校正组件 带数字压力计

技术参数:

可选型号

PM-10

PM-2.5

主机

1台

1台

采样头组件

2套

2套

PM10切割头

2个

2个

PM2.5切割头

2个

2个

充电锂电池

2块

2块

电源适配器

1个

1个

通用安装支架

1套

1套

便携箱

1个

1个

纤维滤膜

 

 

特氟龙滤膜

选配

选配

石英滤膜

 

 

野外校正组件

选配

选配

 

PM2.5 Sampling Procedures
For PM2.5 sampling the following changes must be made to the filter holder:

  • Ensure that the multiple impactor adapter with the PM10 impactor (silver) is installed on top of the preseparator assembly, while the PM2.5 impactor (gold) is installed in the preseparator assembly.

  • Clean and lubricate the EMT (Easy Maintenance Target) every 5 sampling periods. The EMT may need to be cleaned more or less frequently depending on the degree of soiling.

  • After the sampler has been assembled, calibrated, verified to be in proper working order, and a filter loaded in the filter holder assembly, set flow rate adjustment in accordance with procedures as shown in the Operation Manual.

  • Follow all other procedures in the Operation Manual, noting that PM2.5 is being sampled rather than PM10 and TSP.

PM10 Sampling Procedures
For PM10 sampling, follow the steps below:

  • Ensure that the PM10 impactor (silver) is installed in the preseparator assembly. The multiple impactor adaptor is not needed, nor is the PM2.5 impactor (gold).

  • Clean and lubricate the EMT (Easy Maintenance Target) every 5 sampling periods. The EMT may need to be cleaned more or less frequently depending on the degree of soiling.

  • After the sampler has been assembled, calibrated, verified to be in proper working order, and a filter loaded in the filter holder assembly, set flow rate adjustment in accordance with procedures as shown in the Operation Manual.

  • Follow all other procedures in the Operation Manual, noting that PM10 is being sampled.

TSP Sampling Procedures
For TSP sampling, the following changes must be made to the filter holder:

  • Remove the impactor(s) from the preseparator assembly and multiple impactor adapter; remove the adapter.

  • Clean the cap and preseparator assembly every 5 sampling periods, or more frequently if soiling is observed.

  • After the sampler has been assembled, calibrated, verified to be in proper working order, and a filter loaded in the filter holder assembly, set flow rate adjustment in accordance with procedures as shown in the Operation Manual.

  • Follow all other procedures in the Operation Manual, noting that TSP is being sampled.

technical specifications 技术规格

Pump  
Double-diaphragm with laminar flow valve technology
Rated for 10,000 hours continuous operation
Ironless core motor with precious metal commutation
Flow range 0-10 LPM

 

Physical

Polypropylene copolymer weatherproof sampler case
Dimensions: 10" x 12" x 7"
Weight: less than 10 lbs. fully configured
All in one transport case
Dimensions: 19.75" x 12" x 18"
Weight: less than 40 lbs. with all accessories

Timer

Programmable 7-day timer with battery backup
Up to six sample periods per day
Pre-separator/Cassette Filter Holder Assembly
Non-directional louvered inlet design
Easily removed for cleaning
Standard 47mm filter holder
Nominal 10 micron or 2.5 micron "cut-point" at 5 liters/minute sample rate

 

Electronics

Constant flow control circuit
AC or DC operation
Variable flow adjustment
Elapsed time totalizer
Low battery indicator and shut-off
Low flow rate indicator and shutoff
Battery Pack
Litium Ion batteries
14.8V / 118 Watt Hours
1.2 amp external battery charger
Full recharge in less than 6 hours

 

Troubleshooting 故障排除
This section identifies common problems and the action necessary to correct them.
 
  Problem   Solution  
 

The flowmeter will not zero when a leak check is performed.

 

Prior to every sample run with the pump running, check for leaks by removing the inlet assembly and covering the quick connect inlet with palm of the hand or a finger. The flowmeter should drop to zero. If not, a leak is present. Check all tubings and fittings for cracks and tightness. Check the pump nozzle connections and the flowmeter for cracks.

NOTE: when checking the fittings for tightness DO NOT use a wrench or other tool to tighten these connections. These fittings are made to be finger tightened. If a leak persists after finger tightening, replace the fitting.

 
 

A pump nozzle fitting has broken off.

 

Jam a small Phillips head screwdriver or tip of penknife blade into hole of broken fitting and turn out counterclockwise.

 

The charger light on top of battery fails to light when charger is plugged in.

 

The charging LED on the top of the battery should light briefly even if the battery is already fully charged. If the LED fails to light, either the transformer is defective, the battery is defective, or the battery charger board inside the battery case needs to be replaced.

1) Switch the transformer to the second battery pack. If the LED on this pack fails to light, the transformer is probably defective. If you have a second sampler, use the transformer from that sampler to charge the batteries.

2) Disassemble the battery case using a Phillips screwdriver and connect the battery charger board to another battery. If the same condition results, the battery charger board is defective. If the battery LED lights and the new battery charges, the previous battery is defective.

 
The battery charger light on the battery top does not turn off after overnight charge.   The battery may be defective, as indicated by the charger light remaining on "high charge" (i.e., the battery fails to hold the charge and the charger continues to charge). Connect a new battery to the battery charger board. If the same condition results, the charger board is defective. If the light turns off, the previous battery is defective.
 
Battery voltage is less than 12 volts after charging or the battery will not power the sampler for a 24hr run.  

1) Check the battery by connecting a volt-ohm meter (VOM) to the negative and positive battery terminals located on either side of the battery charger light (the negative terminal is odd colored and located next to the sampler catch). If there is no voltage or the VOM readings are intermittent, check that the terminals on the battery cover are tight. If not, see next step.

2) If there is still a voltage problem , remove the battery pack top using a Phillips screwdriver and look for loose connections. The battery charger board should be securely clamped to the banana jacks and connected securely to the battery. Tighten and clean any connections if corroded. Check the battery charging jack for a snug fit with the charging transformer plug. Connect the meter directly to the internal battery terminals. If there is still no or low voltage, see step 3.

NOTE: if loose or corroded connections were found make sure the battery has received a full charge before proceeding with the next step.

3) Even if the VOM meter indicates the correct voltage, perform the following check. Connect a 12-volt light ( such as a auto headlight ) to the battery to simulate a load. Monitor the battery voltage while connected to the simulated load. The battery voltage should drop and stabilize somewhere between 11.5 and 12 volts. When the simulated load is disconnected the voltage should return to approximay 12.5 volts (within "0.2 volt). If the battery fails to stabilize or does not recover to about 12.5 volts, the battery is most likely defective.

NOTE: make sure when performing these tests the battery is charged and disconnected from the transformer.

 
The flow rate cannot be accuray adjusted using the Flow Rate Adjustment.   The pump valves and diaphragms are dirty or worn and need cleaning or replacing (see Section 7, Maintenance, "Cleaning/Replacing Pump Valves and Diaphragms").
 
The flowmeter will not register a high flow rate ( 6 l/m or above). There is no apparent restriction or leak in the plumbing.   The pump valves and diaphragms are dirty or worn and need cleaning or replacing (see Section 7, Maintenance, "Cleaning/Replacing Pump Valves and Diaphragms").
 
Bags do not fill consistently or significant adjustments to frequency have minimal effect.   Solenoid valve is leaking. The performance of the solenoid valve can be determined by placing a clear piece of tube from the outlet fitting into a few inches of water and watching for any back flow of water into the tube between pulses. If any backflow is present , check that the fittings are tight. If the problem persists, contact Airmetrics.


Accessories/Consumables
For proper operation of the MiniVol™, TAS several consumables and accessories are needed or recommended. All of the following are available through Airmetrics.

Impactor Grease
The EMT (Easy Maintenance Impactor) should be cleaned and re-greased after every fifth run or more often if heavy soiling is observed. Airmetrics offers a 60gm tube of Glisseal Ht impactor grease.

Tedlar Bags 
Original MiniVol™ samplers with gas ability feature six liter Tedlar bags in their collection canisters. Manufactured at Airmetrics, the bags can become damaged during repeated sampling use and may need replacement.

Filters 
For particulate sampling, the MiniVol™ uses 47mm filters to collect particulate matter. Filters should be weighed pre- and post-exposure with a microbalance accurate to one microgram. Airmetrics offers the following types of filters:

  • Fiber Film Filter - Teflon-coated glass, ideal for gravimetric analysis
  • Pure Quartz Filter - Recommended if chemical analysis for carbon based compounds will follow gravimetric analysis
  • Pure Teflon Filter - Recommended if chemical analysis for non-carbon based compounds will follow gravimetric analysis

To complement use of the MiniVol™ samplers, Airmetrics also offers filter weighing services.

Petrislides 
Petrislides, plastic cassettes for shipping and storage of filters, are offered by Airmetrics in conjunction with the above filters.

escoping Hoisting Pole for Lifting Samplers
This pole allows the user to lift the sampler from the ground to its sampling site, up to 10 feet above ground. Siting the sampler can thus occur without using a ladder.

Tripod Assembly for Remote Locations
The tripod assembly allows the user to site the sampler in remote areas or on roof tops where no other mounting equipment exists.

Sampler Features
The Standard PM-2.5 MiniVol™ TAS includes:

  • 1 Pump Module
  • 2 PM-2.5 Impactors
  • 2 PM-10 Impactors
  • 2 Multiple Impactor Adapters
  • 2 Louvered Inlets
  • 2 Filter Holder Assemblies
  • 2 Li-ion Battery Packs
  • 1 Battery Charger
  • 1 Universal Mounting Bracket
  • 1 All-Weather Transport Case

Rental MiniVol™ TAS Services
Airmetrics owns and maintains a small fleet of rental samplers for consultant use or for new customers to get acquainted with the MiniVol™ TAS. Rental samplers are available on a first-come/first-serve basis with a one-month minimum rental required. Contact Airmetrics for pricing.
 

Calibration Services
Airmetrics also offers Calibration Services for purchased MiniVols, FRM orifices, and the MiniFlow orifice (used to calibrate the MiniVol™). Airmetrics can also calibrate other flow auditing devices. All calibrated equipment comes with a calibration curve traceable to NIST. Contact Airmetrics for pricing.

Filter Weighing Services
In addition to supplying consumables and accessories for sampler use, Airmetrics offers a 47mm Filter Weighing Service to complement use of the MiniVol™ TAS and other types of air sampling equipment. We carry three types of filters (Fiber Film, Pure Quartz, and Pure Teflon; others may be special ordered), Contact Airmetrics for pricing.

Calibration and Auditing Procedures
Before a monitoring program is undertaken, all sampling and analysis equipment must be properly calibrated. Careful, accurate calibrations of sampling instrumentation and associated equipment provide the backbone for any monitoring network. Performing periodic audits is a way to ensure the integrity and assess the accuracy of sampling data.

The following presents calibration and auditing procedures specific to the MiniVol sampler, which is designed to operate at an actual total flow of 5.0 liters per minute (L/min), and the MiniFlo transfer standard, calibrated over the appropriate flow range.

Field Calibration Kits
Each kit includes a digital or analog manometer, one calibration orifice, a louvered inlet, tubing, a sturdy all-weather case and a calibration curve traceable to NIST.

Calibration Orifices
Available for either FRM equipment or MiniVol™ samplers, the orifices are ideal for either initial calibrations or field audits.

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