Description
Automatic power-pack – CREEP’R
Specialized control system for creep frames
Creep’R is a dedicated control system for hydraulic creep testing machines used in civil engineering and other materials. It can be used to control a battery of creep machines, with load and deformation measurement, controlled loading and automatic charging for long-term tests, in accordance with the NF EN 12390-17 (2019) standard: loading in less than 30 sec., automatic control and reloading.
Features of the Creep’R control panel
Rack made of mechanically welded sheet metal assembly, height 130 cm
Logic module 24 logic inputs, 16 logic outputs
Hydraulic pump control drive to control flow (up to 6L/min)
Wired remote control, with buttons opens, closes, preloads,
charging
Multi-piston hydraulic unit (reliability, regularity and silence), mounted on silentblocks, with external level and temperature indicator
Hydraulic ball valves for pressurizing the hydraulic bus
Stainless steel tank – capacity 40 liters
400 bar pressure sensor, accuracy 0.5%MS
Console features
10’’ touchscreen – Resolution 1024×600 px (223x126mm)
10/100 ethernet port for Man-Machine-Interface console
CPU 32 bits – ARM clocked at 1 GHz
USB Drive Data Recovery
Remote Onboarding for Training, Configuration, and Maintenance
Backup of tests and confi guration, on a USB stick
Barcode reader (optional) for reading the identification of the sample to be tested
Software features
User identifi ed by name (list) and password.
An unidentifi ed user (visitor) can only view the trials in progress.7 levels of users restricting access to certain settings.
Machine confi guration settings.
Definition parameters of the sample to be tested
Preload control using the remote control, as close as possible to the machine.
Loading up to the nominal stress in less than 30s, in accordance with the standard.
When the nominal stress has been reached, the Creep’R regularly checks the force exerted and automatically adjusts if necessary
The load and strain (if equipped with displacement sensors) measurements of each machine are recorded automatically.
Possibility of remote control via the internet
Creep frames
Up to 6 racks can be connected to a single console & console unit via a measurement bus and a hydraulic bus
Each machine is equipped with :
A control block that can be attached to the frame, or remote when used in a thermal chamber
An hydraulic accumulator to maintain the load, maximum pressure 350 bar, capacity 1 liter.
Optionally, a second accumulator in order to extend the range of use of the machine.
A measuring conditioner for load cells, resolution 500 000 points, accuracy 0.003%MS
One CAN output, CANOpen protocol.
Test frame
Fully machined 3 or 4 threaded columns frame to accommodate specimen size
Treated steel plates, single acting cylinder force 100 to 2 000 kN with low friction, stroke 50 mm
Load cell, accuracy 0.023%MS
Optional (for compression creep tests) : 2 multi-magnet magnetostrictive sensors, 4 measuring points per sensor, 2μm resolution, allow to measure the deformation of 2 superimposed specimens, following 2 opposite generators, using glued pads.
