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Features
- integrated 16bit microprocessor
- RS485 bus output signal
- no measuring range limitation
- 0.01 degree resolution
- minimal linearity deviation
- high long-term stability
- hysteresis free output signal
- minimal zero point drift
- no interference by ambient electromagnetic fields
- shockproof as without moving mechanical parts
- hermetically sealed
- sensor electrically isolated from point of measurement - no ground connection
- zero point adjustable through 360° using clamping ring
- integrated temperature measurements rectify any temperature related measuring inaccuracies
Description
The NG360 is a capacitive, liquid based inclinometer with integrated sensor electronics and 16 bit microprocessor. The measurement result is transmitted via a RS485 port for further processing. Up to 78 sensors can be operated using a single communications line.
The measurement method provides a linear relationship between the angle to be measured and the output signal. The determined angle is independent of the local gravitational acceleration, that means that no matter where the measurement is being taken, whether in Europe, Australia, on Mount Everest or on the moon, the inclination will be measured correctly anywhere. Temperature related inaccuracies are corrected by the integrated microprocessor.
Application
The NG360 inclinometer is suitable for applications requiring the measurement of any angle for further processing on a PC.
Typical areas of application include construction, mining, vehicles, aircraft, ships, surveying equipment, and transportation and conveyor systems.
Technical Specifications
| Type | NG360 |
| Measuring range | 360 degrees |
| Resolution | 0.01 degrees |
| Dimensions | see dimension drawing |
| Linearity deviation | ±0.25 degrees |
| Transverse sensitivity | < ±0.1 degree at 45° tilt |
| Settling time | approx. 0.3 seconds |
| Supply voltage UbN | 9V ... 15V |
| Supply voltage on-transition time | < 50ms |
| Current drawn | approx. 40mA |
| Degree of protection | IP65 |
| Operating temperature | -40 bis +85°C |
| Storage temperature | -45 bis +90°C |
| Weight (without clamping ring or cable) | approx. 110 grams |
| Electrical connection | 1m shielded cable Ø 4.6 mm |
Summary of standard SEIKA products |
Static Accelerometers (lower cut-off frequency = 0 Hz)
| Model | Measuring range | Resolution |
| B1, B2, B3 | ±3g, ±10g, ±50g ( 1g = 9.81ms-2 ) | <0.001g, <0.005g, <0.01g |
Dynamic Accelerometers (lower cut-off frequency = 1 or 10 Hz)
| Model | Measuring range | Resolution | Frequenzy range |
| BDK3 | ± 3 g | < 10-3 g | 1...300 Hz |
| BDK10 | ± 10 g | < 5*10-3 g | 1... 800 Hz |
| BDK100 | ± 100 g | < 1*10-2 g | 1... 1.5 kHz |
Inclinometers
| Model | Measuring range | Resolution |
| NB3 | ±10° (±20°) | <0.001° |
| NA2-05, NA2-10 | ±5°, ±10° ±30° ±45°, ±70° | <0.001Grad, <0.002Grad <0.005Grad <0.01Grad, <0.01Grad |
| N2, N3, N4 | ±10°, ±30°, ±70° | <0.001°, <0.005°, <0.005° |
| NG2, NG3, NG4 | ±10°, ±30°, ±80° | <0.001°, <0.005°, <0.005° |
| NG...I | Inclinometer type NG2, NG3, NG4 with integrated 4...20mA signal conditioner | |
| NG...U | Inclinometer type NG2, NG3, NG4 with integrated 0...5V signal conditioner | |
| NG360 | Inclinometer with 360° measuring range and integrated microprocessor and RS485 interface | |
Sensor boxes (for harsh operating conditions)
| Model | Features |
| SB1I | Sensor box (98 x 64 x 56mm3) with one integrated SEIKA sensor of any type and one integrated signal conditioner with 4...20mA output. |
| SB2I | Sensor box (98 x 64 x 56mm3) with two integrated SEIKA sensors of type B, BD, BDK, N or NB and two integrated signal conditioners with a 4...20mA output each. Both channels are electrically isolated from each other. |
| SB1U | Sensor box (98 x 64 x 56mm3) with one integrated SEIKA sensor of any type and one integrated signal conditioner with 0...5V output. |
| SB1S | Sensor box (98 x 64 x 56mm3) with one integrated SEIKA sensor of any type, one integrated signal conditioner with 0...5V output and two open collector switch outputs that respond to traversing of adjustable thresholds. |
| SBS1U | Sensor box (98 x 64 x 56mm3) with one integrated SEIKA-Servo-Inclinometer for measuring small angles of up to 2 degrees with very high resolution and an integrated signal conditioner with 0...5V output. |
| SB360 | Sensor box (98 x 64 x 56mm3) with one integrated SEIKA sensor of type NG360, internal microprocessor and RS485 interface. |
| SBG2U | Sensor box (124 x 80 x 58mm3) with two integrated SEIKA sensors of type NG and two 0...5V outputs. |
| SBG3I | Sensor box (124 x 80 x 58mm3) with three integrated SEIKA sensors and three integrated signal conditioners with 4...20mA output. |
| SBL1 | Sensor box (180 x 180 x 100mm3 - large and robust) with one integrated SEIKA sensor of any type and one integrated signal conditioner with 4...20mA output. |
| SBL1S | Sensor box (180 x 180 x 100mm3 - large and robust) with two integrated SEIKA sensors of any type, one integrated signal conditioner with 4...20mA output, one integrated signal conditioner with 0...5V output and two safety relays that respond to traversing of adjustable thresholds. The SBL1S has two redundant, electrically isolated measuring channels for safety related applications. |
| XB.. | Extra robust, pressure-, saltwater- and corrosion-proof stainless steel sensor box (ø120 x 50) as an alternative to the SB.. housings (180 x 180 x 100mm3) for especially harsh operating conditions, aggressive fluids and saltwater. |
| SC485B | Box (63.5 x 58 x 35mm3) with RS485/RS232 converter for operation of inclinometers NG360, SB360, and XB360 from a RS232 port. |
Sensor accessories
| Model | Features |
| NV4a | Filtering signal conditioner for sensor signal matching with symmetrical +/- 4 V voltage output |
| NV6a | Filtering signal conditioner for sensor signal matching to a 4...20mA, 2-wire interface |
| NV8a | Filtering signal conditioner for sensor signal matching with an asymmetric 0...5V output voltage |
| SW3 | Sensor cube for multiaxial arrangement of SEIKA accelerometers and/or SEIKA inclinometers |
| SBBS, SBBB, SBBW | Fixing plates from stainless steel for sensor boxes SB.. |
