Simtronics GD1 MK3, Operating Manual

Page: 48 / 76

GD1 Page 48 of 76 850-816926-EN R06
6.3. Interference from another GD1
Interference from other detectors is observed as sudden very high values of H
2
S. This can
occur if the laser from more than one transmitter is picked up by the same receiver. In the
image below this effect is illustrated where two transmitters are emitting into one receiver.
Below is a simple solution to prevent interference from another transmitter. The position
of transmitter and receiver is swapped so the laser beams are going in opposite directions.
This solution will not work if there are many GD1's positioned in a line.
Below a second possible solution is illustrated. In this example several GD1's are positioned
so the laser beam does not affect other detectors.
If it is not possible to organize the detectors so they will not interfere, there is a third
solution as illustrated below. A sufficiently large physical barrier, here in form of a small
plate, between the GD1's so that they cannot interfere with each other.
NOTE: In some rare cases, even though the interfering transmitter is mounted behind the
receiver from the noisy detector, the laser can be reflected back into the detector by a
reflective surface (e.g. sign, structural plate metal).
6.4. Download the Diagnostics file
A diagnostics file is required when contacting Simtronics or its authorized distributors for
support. The diagnostics file contains information concerning serial number, the present
settings and errors in the instrument. Follow the instructions to download a diagnostics
file: