Accuracy: 1/10th of a mm, or 5/10th of a mm per metre.
Dimensions: 100 X 270mm, Thickness: 20mm, Weight: 390g
In polymethyl methacrylate
It is attached at 2 points A and B.
Detailed description of G5 gauge
The purpose of the G5 type gauge is to measure variation in an inclination or distortion.
This G5 Saugnac Gauge is based on the same two concepts:
Measurements are made using a vernier measuring to 1/10th of a mm.
It can be fixed in place using double-sided self-adhesive tabs or mechanical means (studs and nuts)
This gauge is transparent to be inconspicuous (in polymethyl methacrylate) and measures 100 X 270 mm. It is 20 mm deep, weighs 390 g, and is accurate to 1/10th of a mm, i.e. angular precision of more or less 0.5 mm per metre.
The gauge’s sensitivity period is 2 min, which means that the needle stabilises 2 min. after having been pushed to its maximum out of vertical alignment.
A screw (V) locks the needle to protect the device during transport.
It is preferable to fix the G5 gauge by mechanical means, screws or studs and nuts, through the 2 oblong holes. These oblong holes (6 X 25 mm) are located at the top and bottom of the gauge, centred on its main axis and perpendicular to it.
Vis (V) de blocage arrière
We advise to fix the gauge mechanically using protective washers (all the items necessary are supplied)
A spirit level is provided in the case with the G5 gauge so that it can be correctly positioned, particularly in the vertical plane.
A/ Fixing with plugs and screws
Use the screws etc supplied with the G5 gauge. Plugs of size 7/30 type S7 + stainless steel screws TR 5 X 40 with neoprene washer 17X5 + stainless steel washers.
B/ Fixing with studs and nuts
This method in deep attachment is recommended for all sorts of suspect or damp surface, where reliability and permanence are required. The screws can be supplied if requested when ordering.
Place yourself perfectly opposite the needle, with your eyes at the level of the dial to avoid any parallax.
Take the reading according to the vernier principle.
When you return to the site, read the position of the needle. The difference between two consecutive readings, MULTIPLIED by 5 gives the variation in mm, per metre height.
We advise protecting the G5 gauge, particularly if it has to be exposed for several months to the weather.