Description
Crack Movement Recorder (USB)
The USB Crack Movement Recorder provides continuous recording of both movement in crack width and ambient temperature. The unit is configurable to measure at a pre-defined interval of 1 minute to 91 hours. The built in data logger stores readings for later download onto a PC.
The unit is powered by a user-replaceable battery, which should last between six months and five years, depending on how the unit is configured and frequency of downloads. The measurements are stored in internal memory and are downloaded to a Windows PC using a USB cable (supplied).
Monitoring in two dimensions using two units (normally horizontal and vertical) is explained in the manual.
The unit is supplied with fixings, a USB cable and the latest version of the user guide and software.
Monitoring in two dimensions using two units (normally horizontal and vertical) is explained in the manual.
The unit is supplied with fixings and the latest version of the user guide and software.
Specifications
Movement Sensor
- Range: 80 mm (extension cables are available)
- Resolution: 0.003 mm
- Linearity: 0.07% full scale
Temperature Sensor
- Range: -20 C – +80 C
- Resolution: 1 C
Data Logger
- Capacity: 31926 Readings (15963 readings with redundancy)
Electrical
- Power Supply CR2023 Battery
Mechanical
- Working Temperature: -10C – +60C (or according to installed battery)
- Cable Tension: 10N
- Protection Rating: IP65
- Mass: 200g
System Requirements
The software requires Windows XP or later.
Installation
With the Recorder fixed using the supplied AF11 screws and plugs and/or AE14 Araldite Rapid Epoxy (available separately), the cable extends across the crack and secures to the opposite surface using the supplied vine eye screw. Full instructions provided.
