LVS 3.1 / MVS 6.1 - Low - / medium - volume sampler for collecting particulate matter PM 10 / PM 2,5 / PM 1
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COMDE DERENDA Low-/ medium-volume sampler for collecting particulate matter PM10 / PM2,5 / PM1 Types: LVS 3.1 / MVS 6.1 This low-/ medium-volume sampler unit is used to collect particulates from ambient air in compliance with EN 12341:2014 (PM10 and PM2.5) ■ Simple operation; menu-based control using function keys and jog dial ■ Large, illuminated graphic display ■ Operating modes: TIME, PERIOD and QUANTITY ■ Displays for pressure, temperature, moisture / humidity ■ RS-232C interface (EN 12341:2014 and IDEAL / relative humidity) ■ Simple software updates thanks to Flash RAM ■ Automatic recognition of the sampling systems These low-volume sampler units were engineered for the collection of particulates in outdoor air in 1976/77 and have been continuously refined since that time. A large number and variety of units has been in service for years now. These devices use a vacuum pump to draw the particulateladen air into a sampling head. The particulates are then sorted by size in an upstream impactor. The particulates are then deposited on filter paper with a diameter of 47mm. The air throughput is monitored with a measuring orifice inserted between the filter and the vacuum pump and is regulated to accuracy of better than 2 %. Type LVS 3.1 is classified as per the EN 12341:2014 European guideline. The air throughput volume when collecting PM10 or PM2,5 fractions amounts to 2.3 m3/h. The device is equipped with a 4 m3 rotary vane vacuum pump. Maximum vacuum at the filter is 300 mbar. When operating at maximum throughput the device, in its functional aspects, is identical with the predecessor model, GS 050/3-N, which is described on Page 7 of VDI Guideline 2463. It also replaces models GS 050/3-C, GS 050/3G, GS 050-3D, LVS 3 and LVS 3D. Maximum air throughput when using a glass fiber filter is 3.5 m3/h. Type MVS 6.1 is fitted with a 6 m3 rotary vane vacuum pump and is otherwise identical to the LVS 3.1 version. The unit can be run at maximum throughput of approx. 5.5 m3/h and is thus suited particularly for the measurement of dioxins and other low-volatility organic compounds. It, too, is a reference unit as per European standard EN 12341:2014 and should be used whenever special filter material is to be employed (e.g. cellulose nitrate or Teflon filters). The maximum vacuum at the filter is 500 mbar. Low-volume sampler LVS 3.1 VDI 2463 pages 7 und 8 EN 12341:2014 (Reference device PM25 / PM10) VDI 2267 (heavy metal) VDI 2465 pages 1 und 2 VDI 3498 (Dioxin and Furan) VDI 3492 (Total dust and Asbestos) Low-volume sampler MVS 6.1 VDI 3875 (PAK) VDI 4301 (PCP/Lindan) Page 1/2 Comde-Derenda GmbH Kieler Strasse 9, 14532 Stahnsdorf / Germany info@comde-derenda.de www.comde-derenda.de

COMDE DERENDA Technical Data Type LVS 3.1 / MVS 6.1 Flow rate LVS 3.1 (controlled): MVS 6.1 (controlled): *optional other flowrates programmable Sampling time: Power supply: Their superior operational reliability and, no less significant, the low amount of noise developed by these filter units make it possible to collect particulate samples in densely populated areas at all times of the day and night and inside buildings, as well. Thanks to their small footprints, the units can also be mounted on poles or lampposts, for instance, using suitable auxiliary equipment (consoles). Since the...