EDTM MG1500 Manuel D'utilisation

Glass Thickness Gauge
MODEL# MG1500
MADE IN THE USA
GENERAL DESCRIPTION
The MIG (Manual IG Thickness Gauge) is a durable tool used to measure glass and
air space thickness in sealed insulating glass units. Laser reflections off the surfaces of
glass are used to determine the thickness of glass, as well as the air space separating
the pieces of glass in a sealed IG assembly. The readings are taken from a single side
of the IG unit and no additional tools are necessary.
Durable scales are interchangeable on the sliding assembly. The multiple scales are
held in place by two black, nylon thumb screws. Due to the scales thin size, the opera-
tor can carry numerous scales inside the carrying case and always be prepared for any
glass application experienced in the field or factory. The scales are printed in Metric
(mm) on one side, and Imperial (inches) on the back side.
The operator can easily measure glass thickness, air space, overall IG thickness, indi-
vidual panes of glass in a laminated assembly, bullet resistant and triple pane assem-
blies. The gauge also has been successfully tested for measuring thickness of mirrors
and other transparent materials.
The MIG is powered by two standard AAA alkaline batteries (included). Two (2) spare
thumb screws are included with each gauge. The black nylon carrying case supplied
with the gauge provides a handy method for carriage.
ZERO ALIGNMENT
The two thumb screws are used to position the scales correctly on the slide assembly.
For ease of use, when the slide is pushed completely in (against the stop), the scales
should be positioned so the first reflection (1) will be aligned with the "0" gradient lines.
The laser reflections will appear to be slightly wider than the scale lines. Position the
scale lines in the center of the laser beam reflection. All scale readings will be made from
the center of the laser beam reflections. Be sure to inspect the top surface of the slide
assembly to make sure it is free of dirt and debris.
REFLECTION NUMBERS
To align the scale, push the slide assembly completely in (against the stop). Place the
gauge on a piece of flat glass and push the power button. Loosen both thumb screws
and position the scale so the center of the first laser reflection (1) aligns with the "0"
gradient. DO NOT move the entire slide assembly, only the scale itself. Once you have
positioned the scale to your satisfaction, tighten the thumb screw in the lower right cor-
ner. After tightening this screw, verify that the zero point is still aligned. If not, readjust
the scale. Before tightening the screw in the upper left corner, verify the laser reflections
are centered on the viewing area. Also, before tightening the upper left screw, apply
pressure on the center of the scale. This will verify that the scale is resting flatly against
the slide assembly.
Each time you switch to a new scale, it will be necessary to realign the "zero point". The
additional scales for the gauge are included in the carry case.
MIG
DESCRIPTION OF PARTS
1. Laser Reflection Region
4. Slide Assembly 5. Thumb Screws
1. Laser Reflection Region: When the laser is energized, the laser beams that reflect
off the glass surfaces will appear in this laser reflection region.
2. "Zero Point": The zero point must be aligned with the first laser reflection prior to
taking glass thickness readings. All new units are shipped from the factory with the
zero point already aligned. If the zero point is out of alignment or if the operator is
changing scales, follow the instructions under "Zero Alignment".
3. Power Switch: Prior to energizing the laser, be aware of your surroundings. The laser
will exit the gauge from the back side. DO NOT LOOK DIRECTLY INTO THE LASER
BEAM AND NEVER POINT THE LASER BEAM IN THE DIRECTION OF ANOTHER
PERSON. To turn on the laser, simply push and hold down the power button. The
laser will activate instantly.
4. Slide Assembly: The slide assembly holds the calibrated scale in place and allows
the operator to move the zero point left and right while taking readings. While taking
readings, the slide assembly starts in the fully inserted (against the stop) position.
After measuring the first lite of glass, the entire slide assembly is slid to the left to
measure the air space and subsequent lites of glass.
5. Thumb Screws: The thumb screws are used to align the scale with the zero point as
well as to hold the scale in place. The thumb screws also provide a handy method of
grasping the slide in order to move it left and right. Two (2) spare thumb screws are
included in the carry case.
6. ASTM Standards Indicator: As you become more fluent with the gauge, you will be-
gin to realize the benefits of the ASTM standards indicator. ASTM standards dictate
the acceptable tolerances in the various glass thickness ranges. A table is printed on
page 3 of this operating manual for your reference. The four lines on the scale repre-
sent the thickness ranges of the four most common glass thicknesses used in North
America: 3/32"(SS), 1/8"(DS), 3/16", and 1/4". These designations are represented
on the scale respectively from right to left, as illustrated below. As you become more
fluent in the operation of the gauge, you may be able to overlook the scale gradu-
ations and look directly at the ASTM range designations to expedite the measuring
process. PLEASE NOTE, the actual glass thickness you measure, can be less than
the traditional designations used by the ASTM standard range. For example, notice
that traditional 1/4" glass is actually closer to 7/32" in thickness.
ASTM Standards Indicator:
745 Capital Commons Drive
Toledo, Ohio 43615 USA
PHONE: (419) 861-1030
FAX: (419) 861-1031
www.EDTM.com
Email: sales@edtm.com
1 © Copyright 2012 Electronic Design to Market, Inc. All rights reserved.
2. "Zero Point" 3. Power Switch
6. ASTM Standards Indicator
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