SEIKA NGU Inclinometers

2. SEIKA NG2U, NG3U and NG4U inclinomters (Single Axis)

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.

 

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 Ub

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

 

APPLICATIONS /

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.

 

DATA SHEET /

SEIKA NG2U / NG3U and NG4U