NOVATEST NV-T24 DET

A single channel system for detensioning tests on reinforced concrete cables.‎ The system is available both in wired (via USB to PC) and wireless version, with receiver to PC or handheld system.‎ The system, in both versions, allows to measure the detensioning by means of a 120 or 350 Ohm linear strain gauge.‎ The strain gauge is connected via a metal bipolar connector, with a screw terminal block (other options are available on request).‎ The data are internally calibrated in microstrain in both systems, are then displayed in real time and saved in .‎csv format.‎ Measurement software The software for the detensioning measurement allows the complete configuration of the system, both in wireless and cabalta versions, the real-time display of the data (both in graphical and numerical form) and their saving in .‎csv format on the PC (neither of the two systems has on-board memory).‎ Via software, calibrations are also available (with the possibility of linearization up to 9 points), zeroing, shunt (only for the wired version, for the wireless version an additional hardware component is available to be placed in parallel with the strain gauge itself).‎ Electrical strain gauges The strain gauges for detensioning are Japanese (SHOWA) with integrated cable of customizable length.‎ For the application of the strain gauges, epoxy, phenolepoxy or cyanacrylate glues are provided, depending on the needs.‎ Moisture protection is also available, for sealing the strain gauge itself (necessary for long-term measurements).‎ For the cutting of the strand is recommended VALEX portable tool, power supply, complete with accessories for cleaning the surface and blades for cutting.‎ Electronics The electronics, both in the wired and wireless version, are equipped with a 24-bit digitizer, 5 V stabilized strain gauge power supply.‎ The completion of the bridge is achieved through high stability and precision Vishay resistors.‎ The wired system allows shunt calibration via software command, the wireless system via appropriate additional hardware module.‎ The sampling rate can be adjusted by the user from 1 Hz up to 200 Hz (default 10 Hz).‎ The zero is carried out by means of a specific software command managed by the user, both for the wireless and for the wired system.‎ The wireless system is powered by 2 AAA batteries, the wired system is powered directly by USB.‎ Further info from manufacturer on NV-T24 DET NOVATEST