NGU

NG2U, NG3U, NG4U
Inclinometers of high measuring accuracy with an integrated 0...5 Volt signal conditioner for inclination measurement in the ranges of ±10, ±30 and ±80 degrees

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Features

temperature compensated, normalized 0 ... 5V output signal
non-regulated supply voltage in range of 9V ... 30V
integrated sensor electronics including signal conditioner
linear output characteristics
high measurement accuracy
minimal linearity deviation
high long-term stability
hysteresis free output signal
no interference by ambient electromagnetic fields
shockproof as without moving mechanical parts
hermetically sealed
sensor electrically isolated from point of measurement - no ground connections
zero point adjustable through 360° using clamping ring
EMC certified

Description

The NG2U, NG3U and NG4U are capacitive, liquid based inclinometers with integrated sensor electronics and signal conditioner. Electronic temperature compensation makes up for the temperature drift of the sensitivity of the primary transformer. An integrated, highly stable voltage regulator ensures stable operation for a range of supply voltages.
The measurement technique provides a linear relationship between the angle to be measured (up to (80 degrees for the NG4U) and the output signal that is calibrated during manufacture. The measuring time constant can be matched to the requirements of the measurement task by appropriate hardware programming.

Application

The inclinometers NG2U, NG3U and NG4U are suited for applications requiring high measurement accuracy with low linearity deviation, low temperature sensitivity and high long-term stability for measurement of large inclination angles, returning a large output signal while using a non-regulated supply voltage.
For particularly harsh operating conditions, we recommend the sensor casing SB1U or the casing SB1S featuring additional switch outputs.
These inclinometers have their application in areas such as construction, mining, vehicles, aircraft, ships, surveying equipment, transportation and conveyor systems and process automation as well as safety engineering.

Technical Specifications

Type	NG2U	NG3U	NG4U
Measuring range	±10 degrees	±30 degrees	±80 degrees
Resolution	<0.001 degrees	<0.003 degrees	<0.01 degrees
Standardized sensitivity (other standardizations on request)	200mV / degree	66.67mV / degree	25mV / degree
Linearity deviation	<1·10^-3F.S.
Transverse sensitivity	<0.5% at 45° tilt
Settling time	approx. 0.3 seconds (1s, 2s, 3s optional)
Temperature drift of sensitivity	<-0.01% / Kelvin
Temperature drift of zero point	<±10^-3 degrees / K
Supply voltage U_b	9V ... 30V (optional 5V, regulated)
Output voltage offset for sensor zero position	2.5 Volt
Current drawn	approx. 5mA
Degree of protection	IP65
Operating temperature	-40...+85°C
Storage temperature	-45...+90°C
Weight (without clamping ring or cable)	approx. 110 grams
Standard electrical connection	0.5m shielded cable Ø4.6mm, 4-wire other lengths optional

On request: special ranges

Each sensor will be delivered with individual calibration dates (offset, sensitivity) and calibration record.

Dimensions (in mm) and Connections

Attention! Do not short circuit the supply voltage with one of the outputs.

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SEIKA Mikrosystemtechnik GmbH - Söllerweg1- D 87487 Wiggensbach - email: seika@seika.de - Tel.+49 8370 9290070 - FAX:+49 8370 9290079

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