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The Schleibinger viskomat XL, Rheometer for Mortar and Fresh Concrete up to 8 and more mm Grain Size Based on 20 years experience with rheometers for mortar and fresh concrete, Schleibinger has developed a new instrument called viskomat XL. Its filling the gap between the viskomat NT for mortar and paste with a specimen volume […]
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Based on 20 years experience with rheometers for mortar and fresh concrete, Schleibinger has developed a new instrument called viskomat XL. Its filling the gap between the viskomat NT for mortar and paste with a specimen volume of 360 ml and the concrete rheometer eBT2 with a sample volume of 20l. The operation principle of the viskomat XL is near the same as for the viskomat NT. So a mixer formed probe is measuring the torque, and the specimen vessel is rotating. An additional scraper is cleaning the wall of the vessel.
The speed may be 0.001 to 80 rpm in both directions, clockwise or counter clockwise. You may be define the speed in several steps, in an linear increase or decrease of speed. As option also an oscillating or a logarithmic mode is possible.
The viskomat XL has a torque range from 0..500 Ncm with a resolution of 0.05 Ncm and accuracy better then 0.2 Ncm. Optional we can install a sensor with a torque range up to 1000 Ncm and a accuracy of 0.8 Ncm
Temperature control is realized by a double wall specimen container, where a cooling liquid is circulating. The specimen temperature is measured with a RTD mounted inside the shaft of the probe.
The sampling rate my be set from 0.005s .. 1min.
As option you may run the viskomat XL with a shear stress controlled mode. So you preset the torque over time, and the speed is automatically controlled to achieve the predefined torque.
The oscillation mode gives information about the storage modulus G' and the loss modulus G'' ,as well as the plastic and elastic properties of your material.
The viskomat XL is controlled via a network interface . Simple connect your PC and start your Internet Explorer for full control and data transfer. No special software installation necessary.
Height 920mm, width 315 mm, depth 410mm, weight 68 kg.
Delivered with 3.5l vessel, inner diameter 165mm, inner depth 175mm, online Display with LCD screen, 4 USB-ports, incl. 1 meas. vessel, 1 probe for concrete and 1 for mortar, maximum grain size <8 mm, 1 scraper, user manual.
Application: Rheometer for mortar paste and fresh concrete up to 6..8mm.
net. size (hxwxd): 920 x 315 x 410 mm
specimen Volume : 3.5l, 3l usable inner diameter 165mm, height 175 mm, others sizes on request
motor speed range : 0.001..80 rpm
motor torque : 1200 Ncm
motor angle measurement accuracy : better ± 0.05 °
meas. torque range : ±0..500 (1000*) Ncm
meas. torque resolution : 0.05 (0.2*) Ncm
meas. torque accuracy : 0.2 (0.8*) Ncm
temperature sensors : RTD PT100 1/10 DIN B
cooling and heating : double wall vessel
controller : extra cabinet, 110..230V, 50..60Hz, 800W
controller interfaces : 4 x USB, 1 x network
user interface : Colored screen with online graphic
Interfaces : Ethernet /TCP/IP for control and data recording.
Weight : Including electronic and safety cabinet ca. 100 kg
Savety : Special proximity sensor with automatic stop function.
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