Ref: LSO

High-accuracy force-balanced inclinometer - 1 to 90° - IP68 - analog output

Rugged single-axis inertial inclinometer
Measurement range: ± 1°, ±3°, ±14.5°, ±30° or ±90°
Non linearity: 0.02 to 0.10% FSO depending on the range and signal output
Signal output: ± 5 Vdc or 4-20 mA
Shock limit: 1500g - Vibration: 20 grms
Operating temperature: -20 to +70°C
Power supply: ±12 to ±18VDC (± 5 Vdc) or 20-30VDC (4-20mA)
IP68 enclosure

Presentation

LSO is a high-precision single-axis inclinometer that meets the most stringent requirements in terms of durability and robustness. The extremely fine angle measurement is completed by gravity using an inertial servo plate and an optical sensor. The accuracy obtained is between 0.02% and 0.1% of full scale depending on the measurement range and the signal output, with a bandwidth of up to 30Hz, exceptional resolution of 1µrad and hysteresis < 0.0005% of the measurement range.

5 measurement ranges from ±1.0 to ±90.0° are available as standard. LSO calibration on a specific measurement range is possible as an option. The output signal is ± 5VDC, 0-5VDC or 4-20 mA. Temperature sensitivity is extremely low, and measurement sensitivity to transverse acceleration negligible.

The design of the LSO, whose sensitive elements are protected from shock and vibration by a fluid damping system, enables accurate and reliable measurement in the harshest industrial environments:

operating temperature: -20 to +70°C
shock limit: 1500g
Vibration: 20 grms
IP68 waterproof aluminium case

Specifications

INPUT RANGE (°)	±1	±3	±14.5	±30	±90
FULL RANGE OUTPUT (VDC)	±5V or 4-20mA	±5V or 4-20mA	±5V or 4-20mA	±5V or 4-20mA	±5V or 4-20mA
NONLINEARITY (% FRO)2 max	0.05	0.05	0.02	0.02	0.05
SCALE FACTOR (V/g) nominal	286.5	95.5	20.0	10.0	5.0
SCALE FACTOR TEMP SENSITIVITY (PPM/°C max)	400	300	100	60	60
BANDWIDTH (-3dB) Hz, nominal	0.5	2	15	20	40
TRANSVERSE AXIS MISALIGNMENT, ° max	0.1	0.15	0.25	0.5	1.00
OUTPUT AT 0° TILT (bias) (V) max	±0.1	±0.04	±0.02	±0.02	±0.02
0° OUTPUT TEMP. SENSITIVITY (Volts/°C)	0.005	0.003	0.001	0.0005	0.0003
VOLTAGE INPUT	±12 to ±18VDC, or 20-30VDC	±12 to ±18VDC, or 20-30VDC	±12 to ±18VDC, or 20-30VDC	±12 to ±18VDC, or 20-30VDC	±12 to ±18VDC, or 20-30VDC
RESOLUTION & THRESHOLD (µradians)	< 1µrad	< 1µrad	< 1µrad	< 1µrad	< 1µrad

Installation

The LSO inclinometer is mounted on the application using 3 M4 screws. Electrical connection is either via a 6-pin connector or a 6-pin terminal block mounted on the inclinometer. Optional connectors and cables are available. The permissible supply voltage is ±12 to ±18VDC (± 5 Vdc) or 20-30VDC (4-20mA)