Ref: Model A603

High-precision dual-axis geophysical inclinometer

  • Very high biaxial accuracy for inclination measurement
  • measuring ranges model A603-C: ± 20 μradians, ± 200 μradians (selection by switch gain)
  • measuring ranges model A603-A: ± 200 μradians or ± 2000 μradians (selection by switch gain)
  • Resolution: 2.5 nrad (model C) or 25 nrad (Model A)
  • Electrolytic technology
  • Low-pass filter - 1 Hz or 0.1Hz (switch selection)
  • Temperature output
  • Operating temperature: -25 to +70°C
  • Power supply: ±11 to ±15 VDC
  • Dimensions: 24 x 24 x 12.7 cm
  • 5m cable included

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Presentation

Model A603 is a tilt measurement system for geophysical applications requiring high accuracy and stability. The A603 system incorporates two high-precision electrolytic sensing elements mounted perpendicularly, enabling detection of minute movements in the X and Y axes (resolution < 2.5 nrad). 2 low-pass filter gain and time constant values are selectable by jumper.

Spécifications

Model Model A603-A Model A603-C
Number of axis X, Y X, Y
Measuring range ±200 μradians (±0.0115°) or ±2000 μradians (±0.0115°) ± 20 μradians (±0.00115°) or ±200 μradians (±0.0115°)
Sensitivity 25 nrad/mv or 250 nrad/mv 2,5 nrad/mv or 25 nrad/mv
Resolution < 25 nrad < 2,5 nrad
Non linearity 2% 2%
Signal output ±8VDC (uni.); ±16VDC (diff) ±8VDC (uni.); ±16VDC (diff)
Zero sensitivity to temperature ±3 μradians/°C (typical) ±3 μradians/°C (typical)
Gain sensitivity to temperature 0.05%/°C (typical) 0.05%/°C (typical)
Temperature output 0.1°C/mV 0.1°C/mV

Installation

The platform is placed on the reference surface. Levelling and calibration are performed using levelling feet with adjusting screws.

A 5m cable is included. Permissible supply voltage is between 11 and 15 VDC.

Applications

  • antenna levelling
  • tide measurement
  • volcano monitoring
  • telescope orientation
  • high-precision metrology
  • precision mechanical production
Technologie
Geotechnical
Number of Axis
2 Axis
Etendue de mesure
0.00115 / 0.0115 / 0.115 °
Résolution
< 0.000001°
Bande passante (-3 dB)
5 , 0.5 Hz
Application
High Accuracy, geotechnical
Nonlinearity (% FS)
± 2 %
Sensibilité du gain
0.02 %/°C
Sortie analogique
analog (Voltage)
Analog output signal
±8 VDC
Tension d'alimentation
±11 to ±15 VDC
Température de fonctionnement
-25 to 70 °C
Protection Class
IP60
Housing
Aluminium
Installation
Platform

Dimensions

Wiring

  • Special calibration
  • 24-34 vdc power supply
  • single-axis version
  • Câble
  • display
  • Datalogger
  • Remote monitoring system

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