Catalog excerpts
The surface quality and the efficiency in surface conditions of sheet metal / plates can measure with the resistance measurement system MRP29HY. The MRP29HY consists of a micro-ohmmeter and a hydraulic press, the engineering principle is based on the 'DEUTSCHEN VEREINIGUNG FUR SCHWEISSTECHNIK e.V.' data sheet for quality evaluation on sheet metal. It is important for every application where the reliability is dependent from the surface quality. On top priority is welding of sheet metal (e.g. after etching, and brushing) in the automotive and aircraft industry, but also surface treatment as for example lacquer and splicing. You can measure the contact resistance on single sheet metal or overlap sheet metal e.g. aluminum or corresponding alloy. But it is also possible to measure other material. One can set all important parameter for another metal or measuring procedure (e.g.pressure). Especially aluminum has the property to react with oxygen in the ambient air, these results in an oxide film. The oxide has a high effect on the regularity and repeatability of welded connections or the homogeneity of coatings. But oil and other pollutions have the same effect. The measuring method measures the contact /surface resistance of the sheet metal under high pressure (typ. 7.5 kN) with a standardized convex electrode and a measurement current of 10 A. The test sequence depends on the selected DVS2929-method with different waiting times under high pressure and result averaging with the required numer of measurements. The initial resistance of the system is determined before and after each test series. This leads to very accurate results and a good detection of the quality of sheet surfaces represented by the contact resistance. High precision resistance meters Special Test Equipment Specifications Microohmmeter: Autom.Ranges: Effective range: Uncertainty: Displayed Resolution: Display: Current: Measuring methods: Thickness of sheet metal: Electrode distance: Sheet metal dimension: Laminating pressure: Resistance control: Force control: Interfaces: Div.Safety directives e.g.: Weight: Dimensions: Power Supply (Mains): Pressure generation: special, integrated 100.0 >Q /1000 >Q up to 1800 >Q 0.05% of reading +/- 2d 0.1 >Q, internal 0.01 >Q (10 nQ) Color, numerical, graphically 10 A pure DC (selectable*) DIN EN ISO 18594:2007 DVS 2929-1 v2007, DVS 2929-0 0.10 mm to 4 mm 5 mm, electrode radius 300 mm typ. 150 mm width unlimited length 300 mm width by wheeling it 180° 7.5 kN (adjustable 1 ... 10 kN*) by calib. external shunt* by 4-20mA strain gauge sensor LAN, 3 x USB (Printer, Barcode reader, XY-Positioning table**) EG:2006/42/-05-17 EG:2004/108/-12-15 EG:2006/95/-12-12 EG:2007/42/-03-16 ca. 45 kg ca.385x500x530 mm (WxHxD) 90 ... 264VAC, 6.5A PFC Closed hydraulic sytem • Sy.2 Resistance spot-, projection- and seam-welding -Method for determining the transition resistance on aluminium, steel and other metals/materials DIN EN ISO 18594:2007-06 DVS 2929 Questions? phone: +49 (0)3328 / 3179 - 0 fax: +49 (0)3328 / 3179 - 10 email: sales@schuetz-messtechnik.com Here you will get technical assistance as well as complete information regarding features, prices, shipment and reselling. * Option ** Option, depends on XY-hardware SCHUETZ MESSTECHNIK GMBH, Rheinstrasse 7D, D-14513 Teltow 8. Edition September 2017. Changes are subject to change without notice. MRP29HY (2017)
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