SUNLIGHT”. This scale is helpful for viewing the faint laminate inner-layer
reflections. When using this scale, you will need to tilt your head at a 45
degree angle to view the reflections.
Mirrors and Reflective Glass
This gauge is capable of measuring mirror thickness as well as standard
reflective glass used in the window industry. It is recommended that the user
test the gauge on various reflective surfaces prior to use in the field. This
will help the user to better understand the capabilities of the product.
For mirrors and single panes of reflective glass, it is recommended that the
user take readings from the reflective side of the glass. Readings from the
non-reflective side will cause additional stray reflections to occur, that may
appear confusing. Readings from the reflective side will reduce the stray
reflections and allow for easier glass thickness measurement. Due to the
intensity of the laser reflection off the reflective surface (surface 1), the sec-
ond reflection (surface 2) will appear weaker than normal.
For insulating units containing reflective glass, again it is recommended to
take measurements from the reflective side of the IG unit. In other words,
place the gauge on the lite of glass that has the reflective coating. It is pos-
sible to take readings on the side of the IG unit containing the non-reflective
lite of glass, however additional stray reflections may occur. Again, it is impor-
tant that the user test various reflective surfaces to achieve a better under-
standing of the laser reflections.
OPERATING CONDITIONS
FLATNESS:
Prior to every reading, verify the gauge is resting flatly against the glass
surface. Do not tilt the gauge or place any items under the gauge when taking read-
ings. Tilting the gauge in any way will adversely affect the accuracy of the readings.
BRIGHT LIGHT ENVIRONMENTS:
This gauge will allow the operator to take measure-
ments in nearly all light conditions. If the operator is working in extreme bright light,
cupping your hand over the scale can help improve the contrast of the laser on the
scale. If shadowing the scale area does not work well enough, there is a scale that
is designed specifically for bright light situations. Apply the scale that is labeled “FOR
LAMINATED OR BRIGHT SUNLIGHT”. With this scale in place, it will be necessary to
view the laser reflections in the same plane as the reflections. In other words, move
your head to view the reflections at a 45 degree angle, as shown in the following il-
lustration. The laser reflections should appear brighter with this scale.
SAFETY PRECAUTIONS AND MAINTENANCE
When not in use, the MIG and all scales should be kept in the carrying case for protec-
tion.
It is imperative that the bottom surface of the gauge is kept clean and free of any de-
bris. Any build-up on the bottom surface can cause the gauge to rock and/or not sit flat
against the glass, causing incorrect readings. Therefore routinely inspect and clean
the bottom surface of the gauge.
This product emits a laser beam from the back side.
DO NOT point the laser at any ones eyes. ALWAYS
check the other side of the window being tested
to ensure that no one will be looking directly into
the laser.
On reflective glass and mirrors, be aware that a significant portion of the laser intensity
is reflected back in the direction of the sliding scale. If the slide assembly is pulled out
significantly, the scale and slide assembly will no longer block the reflection of the laser
off the first (reflective) surface.
The MIG is powered by 2 AAA alkaline batteries. If the laser stops operating, replace
the batteries with alkalines. To access the batteries, remove the four screws located on
the top surface of the gauge. Do not touch the laser or any other items found inside the
cover. Replace the batteries and refasten the cover. Be sure to install the batteries cor-
rectly (po/-). Installing the batteries backwards may cause permanent damage
to the laser and will not be covered by the product warranty.
DESIGNATION
TOLERANCE
mm
2.5
3.0
4.0
5.0
5.5
6.0
8.0
10.0
inches
0.09
0.12
0.16
0.19
0.21
0.23
0.32
0.39
mm max.
2.57
3.40
4.19
5.05
5.54
6.20
8.43
10.31
mm min.
2.16
2.92
3.78
4.57
5.08
5.56
7.42
9.02
inches min.
0.085
0.115
0.149
0.180
0.200
0.219
0.292
0.355
inches max.
0.101
0.134
0.165
0.199
0.218
0.244
0.332
0.406
TRADITIONAL
DESIGNATION
3/32 in. (single)
1/8 in. (double)
5/32 in.
3/16 in.
7/32 in.
1/4 in.
5/16 in.
3/8 in.
AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)
Tolerance specifications for flat glass
WARRANTY
The manufacturer warrants all models of the MG1500 to be free from defects in material and workmanship
under normal use and service as specified within the operator’s manual. The manufacturer shall repair or
replace the unit within one (1) year from the original date of shipment after the unit is returned to the manu-
facturer’s factory, prepaid by the user, and the unit is disclosed to the manufacturer’s satisfaction, to be thus
defective. This warranty shall not apply to any unit that has been repaired or altered other than by the manu-
facturer. The aforementioned provisions do not extend the original warranty period of the unit which has been
repaired or replaced by the manufacturer. Batteries are not covered by warranty.
The manufacturer assumes no liability for the consequential damages of any kind through the use or misuse
of the MG1500 product by the purchaser or others. No other obligations or liabilities are expressed or implied.
All damage or liability claims will be limited to an amount equal to the sale price of the MG1500, as established
by the manufacturer.
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