Automatic Weighing System AWS-3
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Environmental Monitoring SystemsAutomatic weighing system for gravimetric evaluation of dust-loaded filters during engine development Type AWS-3 Comde-Derenda GmbH Kieler Strasse 9, 14532 Stahnsdorf / Germany info@comde-derenda.de www.comde-derenda.de

Environmental Monitoring Systems Automatic weighing system for gravimetric evaluation of dust-loaded filters during engine development (Pat. pend.) Type AWS-3 The AWS-3 weighing system automatically registers and documents the amount of particulate matter contained in engine exhaust. This particulate matter is collected from the exhaust gas system, using filters 47 mm in diameter. Very exact, automatic weight determination system for filters with a diameter of 47 mm. Automatic registration and documentation of the amount of particulate contained in engine exhausts. Great reduction of stress...

Environmental Monitoring Systems Introducing the AWS-3 automatic weighing system When analyzing the exhaust gas produced by engines it is necessary, among other items, to measure the particulate concentration in the exhaust. The engine manufacturers’ test beds feature a particulate filter holder located in the engine’s exhaust gas system. The filters are 47 mm in diameter. The engine’s exhaust is routed through this device. The particulates deposited on the filters can be collected and the share of particulate then determined by gravimetric means (i.e. by weighing). The AWS-3 automatic...

Environmental Monitoring Systems Pre-conditioning workstation Filter magazines The pre-conditioning workstation comprises the conditioning unit with its HEPA filter, an ionization system, the control cabinet and the weighing chamber. All the units are located in a dust-resistant housing. To be found in the forward section of the preconditioning workstation are four filter magazines comprising turntables and magazine towers with a total of 640 slots. Installed in the rear section of the chamber is the handling system; it can move along three axes. At the center is the location for the...

Environmental Monitoring Systems Handling system The AWS-3 handling system, moving along three axes, ensures the automatic transportation of fine dust filters, reference filters and reference weights within the system. The transport fork in the handling system picks up one filter tray in each case at the pre -programmed starting position and puts it down again at the destination position. The robot, moving along a linear axis, is powered by a brushless servomotor and enclosed gearing. All the cables and cable carriers are suitable for use in clean rooms. The handling system is equipped with...

COMDE DERENDA Handover slot The handover slot at the AWS-3 ensures that the sampling filters can be fed to and removed from the system in a simple fashion and without contaminating the weighing chamber. To do this, the filters and filter trays are laid in a removable slide insert (holding four filters); it is in turn placed in the slide at the handover slot. The slide is then entered manually into the weighing chamber, where the filter is picked up by the handling system and moved to the filter magazines. The filters are later discharged in the reverse order. The slide in the handover slot...

COMDE DERENDA Technical Data Automatic Weighing System Type AWS-3 Filter magazine Number of magazine towers holding filters: Number of magazine discs / magazine tower: Number of filter positions / magazine disc: Number of filters / magazine tower: Total capacity of the 4 magazine towers: Material of the magazine discs: Potential equalization: Drive system of the disc magazines: Positioning of the magazines: 4 20 8 160 640 filters 2 mm fiberglass reinforced double laminated epoxy resin with gold plated storage areas for the filter trays By means of a special construction and gold plated...

Environmental Monitoring Systems Dimensions Automatic Weighing System AWS-3 Comde-Derenda GmbH was originally founded as an engineering office in Berlin, in the year 1972. The company’s activities at that time included the development, production and sales of measurement and control systems and gas analysis systems. Over the course of time, the engineering office focused on the development and production of devices and systems for the collection of particulates in the ambient air, used in the field of environmental protection. COMDE GmbH was founded in the year 1992. The company in...