Loading... Please wait...

Tiltmeters · Pendulums

Pendulum Readout | Model 6850

  • Model 6850-4 Electronic Readout.
  • Model 6850-10 Optical Manual Readout and Model 6850-8 Manual Reading Table, mounted above Pendulum electronics.
  • Closeup of the Model 6850-10.
  • Closeup of the Model 6850-10.
  • Model 6850-4 Electronic Readout installed on Measurement Table.
  • Model 6850-10 Optical Manual Readout, shown as mounted to the Model 6580-8 Manual Reading Table.
  • Model 6850-1-2 Inverted Pendulum System.
  • Model 6850 Pendulum Readout installation in dam gallery.
Model 6850

The Model 6850 Pendulum Readout is designed to make accurate measurements of the relative movements of normal and inverted pendulums, such as those found in dams, and can be installed as a new system or as an electronic upgrade for an existing system. The electronics package provides both 4-20 mA and EIA RS- 485 data outputs. The data can be stored locally, or remotely, with the 8600 Series Dataloggers, or other dataloggers, and thence by hard-wire or modem to a PC. Two 2-D models are available: 50×50 mm and 50×100 mm; and one 3-D model: 50×100×50 mm. Manual sighting/reading tables with optical (LED) readout are also available where automated systems are not necessary, or where a manual reading back-up is required.


Standard Range
(2-D) X axis: 0-50 mm, Y axis: 0-50 mm
(2-D) X axis: 0-50 mm, Y axis: 0-100 mm
(3-D) X axis: 0-50 mm, Y axis: 0-100 mm, Z axis: 0-50 mm
(2-D, Manual) X axis: 0-50 mm, Y axis: 0-50 mm or 0-100 mm (specify)
0.01 mm
better than 0.1 mm
0.2 mm (2-D, Manual)
Operating Temperature
−15°C to +60°C
L × W × H
(2-D) 380 × 330 × 145 mm
(2-D) 425 × 375 × 190 mm
(3-D) 425 × 375 × 190 mm
(2-D, Manual) 356 × 356 × 100 mm

Please Note: Geokon maintains an ongoing policy of design review and reserves the right to amend products and specifications without notice. Various instruments are discontinued over time and replaced with new, updated models.