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  • Product Name:Attitude sensor-HEC195E high-precision attitude sensor attitude meter

  • Main characteristics:Main features: HEC195E (Power Edition) is a cost-effective attitude sensor. It is specially developed by our company for power switch, which is composed of inertial measurement unit and magnetic sensor. The extended Kalman filter algorithm is embedded in the product to provide accurate information such as heading angle, pitch angle and roll angle. Compared with the traditional attitude reference system, the accuracy of the product is improved through internal self-calibration.

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Product Introduction


HEC195E (electric version) is a cost-effective attitude sensor. It is specifically developed by our company for power switches, consisting of inertial measurement units, magnetic sensors, and other components. The product is embedded with an extended Kalman filter algorithm, providing accurate information such as heading angle, pitch angle, roll angle, etc. Compared to traditional attitude reference systems, the accuracy of the product has been improved through internal self calibration.

Main characteristics

Provide real-time, high-precision roll angle, pitch angle, and heading angle accuracy in both dynamic and static environments, with a dynamic accuracy of 0.5 ° and a static accuracy of 0.2 °.

◆ It can be installed horizontally and vertically, self calibrated, saved in case of power failure, and can query and modify IP addresses.

◆ The magnetic heading angle can be switched by the user according to their needs

◆ Benchmarking the requirements of State Grid for attitude monitoring module

◆ Small size, light weight, low power consumption, strong stability, long lifespan

application area 

The functional requirements, technical parameters, appearance dimensions, and testing and inspection requirements that the attitude sensor needs to meet in the "double confirmation" of the opening and closing positions of open type isolation switches and combination type isolation switches in substations with voltage levels of 35kV and above.

Product indicators

ParameterIndexUnitRemarks
Attitude angleMeasurement range: pitch angle/roll angle-360~+360°Maximum adjustable range -1800~+1800
Static accuracy (-40 ℃~+85 ℃)<0.2°RMS
Dynamic accuracy (-40 ℃~+85 ℃)<0.5°RMS
resolving power0.01°
Heading anglemeasuring range -720~+720°Maximum adjustable range -1800~+1800
Static accuracy (-40 ℃~+85 ℃)<0.2°RMS
Dynamic accuracy (-40 ℃~+85 ℃)<0.5°Repeatability<0.5 °
resolving power0.01°
Angle drift1h0.2°
Whole life cycle1°
Data consistencyPerform 1000 consecutive actions1°
Power supply requirementsinput voltage 9~36VDC power supply
power≤400mWThe working current is 44mA when powered by 9V
data outputOutput rate10~100HzCan be set
communication interface Communication methodRS485
ModBusRTU protocol
work environmentworking temperature -40~+85
Storage temperature-25~+70
relative humidity5%~95%
There is no condensation or freezing inside the product
atmospheric pressure80~110kPa
Maximum wind speed35m/soutdoors
Maximum daily temperature difference25outdoors
Ice thickness10mmoutdoors
Anti vibration (10-1000Hz)10grms
IP protection level67

physical characteristicsweight80g
sizeL47.4×W47.4×H35mm
Interface5-core aviation plug

Shell materialSandblasting and oxidation treatment on the surface of aluminum alloy


MTBF≥25000h
Using vegetarian ingredients≥8year
communication interface RS-485 (ModBus), default data rate 9600, 8-bit data bit, 1-bit stop bit, no checksumAdjustable data rate software

For more information,please click on the product manual at the top right to download