T-REX Incremental Extensometer thumbnail 1

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SISGEO

T-REX Incremental Extensometer

InfrastructureGeotechnical Instrumentation

The T-REX incremental extensometer is used to measure the position of magnetic rings set along the axis of inclinometer casing. Measurements are later used to calculate changes in position, which indicate displacement. The system is mainly composed by T-REX digital probe, B.R.A.IN bluetooth reel with control cable and APP compatible with Android and iOS mobile operative systems. The electronics’ readout is integrated into the reel and the BLE (Bluetooth Low Energy) wireless protocol permits a fast and safe communication. More info.↗

Quantity

Specification

Bluetooth module	band: 2.4 GHz ISM Band (2402-2480 MHz) - power: 4dBm Max
Communication with device	BLE (Bluetooth Low Energy) 4.2
On-board sensors - Temperature - Humidity - Battery voltage	Resolution 0.01°C 0.025%RH 0.01 V	Accuracy ±1°C (-10°C to +85°C) ±5% (0 to 95%RH) ±5% FS	Range -40°C to +125°C 0 to 100%RH 0 to 36 V
Operating Temperature	-40 to 80°C (batteries -20 to 65°C)
Communication with probe	RS485 Modbus RTU Protocol
IP class and material	IP65, unbreakable synthetic rubber
Power supply	4 x 1.2 V - 5 Ah - Ni-MH rechargeable batteries
Operating time with NiMH batteries	≈ 6 h with T-REX probe always on (APP in reading mode)
Charger for NiMH batteries - Input voltage - IP rate - Max output power - Temperature range	90-264 VAC, 50-60 Hz IP41 10 W -20 +40 °C
Cable lengths	30,60,100,150, 200, 250 m
Depth tactile marks	copper, every 500 mm
Max strength	370 kg
Operating temp. range	-30 to 80 °C
Probe Measuring range	±40 mm
Probe resolution	0.0001 mm (with B.R.A.IN APP)
Probe Accuracy: Pol. MPE	±0.2% FS (±0.16 mm/m)
Probe Repeatability	±0.01 mm/m
Probe Stability @24 hours	±0.025 mm/m
Probe Power supply	from 8 to 28 V
Probe Max consumption	125 mA@24Vdc 260 mA@12Vdc
Probe Material	aluminum body and steel parts
Probe IP class	IP68 up to 2.0 MPa