BRAIN MEMS Inclinometer

The B.R.A.IN MEMS Inclinometer System is a highly specialized tool designed to monitor ground displacement or structural movement, particularly in applications involving slopes, embankments, retaining walls, and other structures susceptible to deformation.

The system includes the BRAIN App for survey management, a digital inclinometer probe with Biaxial digital MEMS probes for vertical measurements and Uniaxial digital MEMS probes for horizontal measurements, a Bluetooth reel with a control cable, offering comprehensive analysis and actionable insights for geotechnical and structural monitoring.

Typically, the user should select bill of materials based on deployment scenario:

BRAIN (Borehole Readout Array for Inclinometers)

Choose Light Cable length (30m, 60m, 100m, 150m, 200m)

Klion Software (additional accessory designed to manage vertical and horizontal inclinometer readings, spiral meter compensation and T-Rex extensometer surveys)

Choose casings ( Red stripe, Easy lock and Quick joint)

Key features of different types of casings:

Feature

Red Stripe Casing

Quick Joint Casing

Easy Lock ABS Casing

Material

ABS/PVC

High-quality ABS

ABS

Assembly

Manual (rivet/tape)

Quick with pre-fitted couplings and alignment keys

Pre-assembled coupling, self-aligning junction

Waterproofing

Requires manual sealing

O-rings prevent ingress of grout or water

O-rings ensure waterproof joints

Applications

Basic monitoring

Ideal for dams, embankments, deep boreholes

Advanced monitoring (landslides, dams, tunnels)

Ease of Use

Moderate (manual assembly)

High (quick, efficient assembly)

Very High (easy and secure assembly)

Structural Monitoring Application Areas:

Geotechnical Engineers - analysing and monitoring soil and ground behaviour, using the system for monitoring subsurface displacements and stability of foundations, slopes, and embankments.

Construction and Civil Engineering Companies - in large infrastructure projects such as dams, tunnels, highways, bridges, and buildings, where monitoring structural stability is critical.

Mining and Quarry Operators - monitoring the stability of pit slopes, waste dumps, and other structures in mining environments to ensure safety and reduce the risk of landslides.

Environmental Consultants - in environmental assessments and monitoring, using the system to assess land movement, soil stability, and the impact of environmental factors on structures.

Government Agencies - for infrastructure safety, land stability, and disaster prevention, such as in areas prone to landslides, earthquakes, or heavy construction.

Research Institutions and Universities – For studying geotechnical behaviour, soil mechanics, and structural integrity, using the system for experimental monitoring and data collection.

Retaining Wall and Slope Stabilization Specialists - On designing and monitoring the stability of retaining walls and slope stabilization systems.

Features

The B.R.A.IN MEMS Probe Inclinometer by Sisgeo is a sophisticated system designed for precise measurement of ground or structural displacements. Key features include:

High-Precision Measurements: Utilizes a rugged, low-noise sensor to deliver accurate readings.
Digital MEMS Probe Options: Available with vertical or horizontal digital MEMS probes, each offering a gauge length of 500 mm or 1000 mm.
Flexible Cable Choices: Offers a selection between heavy-duty and lightweight cables to suit various operational needs.
Wireless Communication: Features an integrated electronic readout within the reel, employing Bluetooth Low Energy (BLE) for efficient and secure data transmission with minimal battery consumption.
User-Friendly Mobile Application: The B.R.A.IN App, compatible with both Android and iOS devices, enables users to manage inclinometer and spiral meter surveys and share readings via popular apps like email, Dropbox, WhatsApp, Google Drive, OneDrive, and iCloud Drive.
Data Analysis Integration: Survey data can be imported into KLION software (additional accessory) for comprehensive analysis and the generation of professional, customizable reports.

Specification

BLUETOOTH REEL SPECIFICATIONS

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
Environmental condition certification	Certified for extended environmental conditions: altitude above 2000m
Power supply	4 x 1.2 V - 5 Ah - Ni-MH rechargeable batteries
Operating time with NiMH batteries	≈ 96 h with inclinometer and spiral probe
Led	Different colours for local notifications
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
Directive compliance	2014/53/EU (RED)

CONTROL CABLES SPECIFICATIONS

MODEL	0S2RD6000B0	0S2RC6000B0
Type	B.R.A.IN LIGHT CABLE (STANDARD)	B.R.A.IN HD CABLE (OPTION)
Cable lengths	30, 60, 100, 150, 200 m 100, 200, 300 ft	30,60,100,150, 200, 250, 300 m
Conductors	2x0.50mm2 (AWG 21) + 2x0.24mm2 (AWG 24)	6x0.50 mm2 (AWG 21)
Depth tactile marks	AL, every 500mm±0.5mm or 2ft±0.0016ft	Copper, every 500mm±0.5mm
Max strength	150 kg (330 lb)	370 kg (816 lb)
Outer jacket	blue, polyurethane	yellow, polyurethane
Cable diameter	6.5 mm (0.25 in)	10.4 mm (0.41 in)
Weight (cable + marks)	0.054 kg/m (0.036 lb/ft)	0,150 kg/m (0.30 lb/ft)
Operating temp. range	-30°C to 80 °C (-22°F to +176°F)	-30°C to 80 °C (-22°F to +176°F)
Total weight with 60m/200ft cable	6 kg (13.2 lb) with B.R.A.IN reel	14 kg (30.9 lb) with B.R.A.IN reel

INCLINOMETER PROBES SPECIFICATIONS

MODELS	0S242DV3000 (500mm gauge length) 0S242DV3010 (1000mm gauge length) 0S242DV300F (2 ft gauge length)	0S241DH3000 (500mm gauge length) 0S241DH3010 (1000mm gauge length)
Applications	Vertical casings	Horizontal casings
Measurement principle	Biaxial MEMS inclinometers	Uniaxial MEMS inclinometers
Measuring range	±30°	±30°
Signal output and protocol	RS485 Modbus RTU	RS485 Modbus RTU
A/D converter	sigma-delta 32 bit, 38-KSPS	sigma-delta 32 bit, 38-KSPS
Sensor resolution (reading frequency 2 Hz)	0.00056°	0.00056°
Accuracy: MPE	±0.01% FS	±0.01% FS
Repeatability	±0.0009°	±0.0009°
Stability after 24 hours	±0.004°	±0.004°
Temp. operating range	–30°C to +70°C	–30°C to +70°C
MEMS shock resistance	20000 g	20000 g
Power supply	from 8 to 28 Vdc	from 8 to 28 Vdc
Max consumption	5.5 mA@24Vdc, 11 ma@12Vdc	5.5 mA@24Vdc, 11 ma@12Vdc
On-board temperature sensor measuring range	- 40°C to +125°C	- 40°C to +125°C
On-board temperature sensor accuracy / resolution	±1°C (-10°C to +85°C) / 0.01 °C	±1°C (-10°C to +85°C) / 0.01 °C
On-board humidity sensor measuring range	0 to 100% RH	0 to 100% RH
On-board humidity sensor accuracy / resolution	±5% RH (0 to 95% RH) / 0.025% RH	±5% RH (0 to 95% RH) / 0.025% RH
On-board supply voltage monitor measuring range	0 to 36 V	0 to 36 V
On-board supply voltage monitor accuracy / resolution	±5% FS / 0.01 V	±5% FS / 0.01 V
Material	stainless steel	stainless steel
Body diameter	28 mm (1.1 in)	28 mm (1.1 in)
Total length (without connector)	750 mm (with 500 mm gauge length) 1250 mm (with 1000 mm gauge length) 33.9 in (with 2ft gauge length)	810 mm (with 500 mm gauge length) 1310 mm (with 1000 mm gauge length)
Wheels carriage	pair of wheels (Ø 32 mm / 1.26 in) mounted on long-life sealed ball bearings	2 fixed wheels and 2 spring-loaded wheels mounted on long-life sealed ball bearings
Wheel diameter	32 mm (1.26 in)	32 mm (1.26 in)
IP class	IP68 up to 2.0 MPa	IP68 up to 2.0 MPa
Weight	2.0 kg (with 500mm gauge length) 4.0 kg (with 1000mm gauge length) 5.5 lb (with 2 ft gauge length)	2.0 kg (with 500mm gauge length) 4.0 kg (with 1000mm gauge length)
Compliant Directive	2014/30/EU (EMC)	2014/30/EU (EMC)

Accessories

Accessories Specifications
February 15 2025 05:16:49

Red-Stripe Inclinometer Casings

Red-Stripe Inclinometer Casings are precision-engineered grooved tubes designed to track sub-surface ground displacements in geotechnical and structural applications. Made from high-quality virgin ABS, these casings are easily installed into drilled holes and are fully compatible with inclinometer systems or in-place inclinometers.

The system includes durable, twist-resistant couplings with a 12” steel sleeve, a lockable ABS plastic top cap, and a conical bottom cap, ensuring secure and stable connections for reliable ground displacement monitoring. Designed for up to 100 meters of casing, the package comes with all necessary accessories, including rivets, adhesive tape, self-amalgamating tape, and drill bits for straightforward installation.

Accessories Specifications

TECHNICAL SPECIFICATIONS

PRODUCT CODE	0S13100603M
Description	metric red stripe casing
Material	ABS (Acrylonitrile-Butadiene-Styrene)
Outer diameter (OD)	71 mm (2.8")
Inner diameter (ID)	60 mm (2.4")
Groove ID	65 mm (2.6")
Thickness	3.75 mm (0.15")
Length	3 meter
Casing weight	2.1 kg
Spiral	< 0.6° / 3 m
Suggested borehole drilling diameter	101 mm (4")
Temperature (max 1 hour)	+80°C (176 °F)

Accessories Specifications
February 15 2025 05:24:35

Quick Joint (QJ) Casing

The Sisgeo QJ Casing is a modern alternative to traditional inclinometer tubes, designed for use in earth-fill and rock-fill dams, as well as deep borehole applications. It provides quick and easy installation, with reliable joint integrity and deeper tube grooves. The system is equipped with O-rings to prevent grout or water infiltration, factory-installed couplings and alignment keys to ensure perfect groove alignment, and versatile settlement rings that allow for both inclinometer and settlement measurements in a single borehole. Additional features, including a lockable top cap for topographical surveying, a quick-sealing top cap to prevent clogging with survey points, and a bottom cap for efficient column assembly, make the QJ Casing a reliable solution for accurate ground displacement monitoring.

Accessories Specifications

TECHNICAL SPECIFICATIONS

PRODUCT CODE	MODEL 0S151107000	MODEL 0S151MT0700
Description	Standard QJ section	QJ Telescopic section 75 mm gap (3’’)
Tube outer diameter	70 mm (2.75’’)	70 mm (2.75’’)
Tube inner diameter	59 mm (2.32’’)	59 mm (2.32’’)
Tube groove ID	63 mm	63 mm
Overall section length	3100 mm	500 mm
Overall diameter	84 mm	84 mm
Thickness	5.5 mm	5.5 mm
Material	ABS (Acrylonitrile Butadiene Styrene)	ABS (Acrylonitrile Butadiene Styrene)
Colour	white/red	white/red
Spiral	< 0.6° / 3 meter	-
Collapse test	15 bar	15 bar
Temperature (max 1 hour)	+80°C (176 °F)	+80°C (176 °F)
Max working load	> 500 Kg	> 500 Kg

Accessories Specifications
February 15 2025 05:21:50

Easy-Lock Inclinometer Casing

The Easy-Lock Inclinometer Casing is a grooved tube designed for quick and efficient installation, featuring a self-aligning junction at one end and a pre-assembled coupling at the other. The unique coupling design, with an internal O-ring, ensures a waterproof joint and a nearly flush surface between the tube and coupling.

The innovative locking system uses a nylon wire threaded through an aligned hole and groove, eliminating the need for rivets or glue. The casing system includes a lockable top cap with a survey pin for topographical surveying, a bottom cap for easy installation, and various accessories such as O-rings, locking wire, and Sisgeo adhesive tape. It is compatible with T-REX incremental extensometers and DEX in-place extensometers, offering a versatile solution for reliable ground displacement monitoring.

Accessories Specifications

TECHNICAL SPECIFICATIONS

PRODUCT CODE	MODEL 0S143107000
Casing outer diameter	70 mm (2.75")
Coupling outer diameter	76 mm (3.00")
Casing Inner diameter	58 mm (2.32")
Groove inner diameter	63.5 mm (2.5")
Thickness	6 mm (0.22")
Overall section length (casing+coupling)	3055 mm (10.02’)
Total section weight with coupling	3.6 kg
Spiral	< 0.2° / m
Material	Shock-resistant ABS
Maximum tensioning load	200 kg
Casing tensile strength	40 MPa
Casing breaking elongation	20%
Casing elastic modulus	2700 MPa
Collapse tes	15 bar
ABS transition temperature	+105 °C (221 °F)
HDT test ISO 75(	+83°C (181 °F)
Minimum borehole drilling diameter	101 mm (4”)

Accessories Specifications
February 18 2025 06:26:35

Pulley Aseembly

Pulley assembly assists with depth control and prevents cable abrasion. It features a cable stop, a pulley for smooth cable guidance, and adapters to fit various casing sizes, ensuring reliable and efficient operation.

Accessories Specifications

Accessories Specifications
February 18 2025 06:24:33

Calibration Frame

The calibration frame consists of an anodized aluminium frame with a pivoting arm made by a length of epoxy painted inclinometer casing.
The pivoting arm permits probe check at –11°, -6°, zero, +6° and +11°.
The frame is ready for wall mounting.
Overall dimensions: 350x800x127 mm (compatible with 500mm probe only)
Material: epoxy painted aluminium.

Accessories Specifications

FAQ

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Downloads

Title	File Type	File Size	Downloads	View	Last Uploaded
Product Datasheet	application/pdf	7.41 MB			February 18 2025 16:01:16

Product Video

Understanding B.R.A.In: Borehole Readout Array for Inclinometers - A Complete Tutorial

BRAIN MEMS Inclinometer