IDENTIFYING THE TYPE OF LOW-E:
In addition to identifying the location of Low-E coatings, the GC3000 determines the
type of Low-E on your glass application. The meter will specify it as “hard coat” or “soft
coat.” If soft coat, the meter will also specify the number of silver-layers as single,
double, or triple, based on the coating’s energy performance. If you happen to know
the manufacturer of the glass, in many cases you can identify the exact type of Low-E
coating used to make the window. Here are some examples:
GLASS THICKNESS RANGE
• Minimum Glass Thickness Allowed: 0.080 inch or 2.0mm
• Minimum Air Space Allowed: 0.187 inch or 4.7mm
• Glass Thickness Allowed for Low-E Readings: up to 0.5 inch or 12.7mm
Triple Pane Windows
The GC3000 will display the thickness of each pane of glass,
the thickness of each air space, and the total IG thickness. De-
pending on the thickness of the glass, the maximum allowable
range for the total IG thickness changes according to the data
below:
Double Pane Windows (including win-
dows with suspended lm)
The GC3000 will display the thickness of
each pane of glass, the thickness of each
air space, and the total IG thickness. De-
pending on the thickness of the glass, the
maximum thickness range for the total IG
thickness changes according to the data
below. **Note** these same dimensions
apply when measuring a double pane
window with suspended lm.
Single Pane Glass
The GC3000 will display the thickness of single panes of glass
up to 2.75 inches or 70mm thick.
Laminated Glass
The GC3000 will measure the overall thickness as long as
there is no Low-E coating against the laminate inner-layer. The
laminate assembly can be a single piece or combined into an
insulating unit. The GC3000 will NOT measure the PVB inner-
layer or the individual pieces of glass making up the laminated
glass; it will simply give the overall thickness of the laminated
piece.
WARRANTY
The manufacturer warrants all models of the GC3000 to be free from defects in material and workmanship
under normal use and service as specied within the operator’s manual. The manufacturer shall repair or
replace the unit within twelve (12) months from the original date of shipment after the unit is returned to the
manufacturer’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
manufacturer. 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 GC3000 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 GC3000, as established
by the manufacturer.
SOFT COAT (sputtered)
HARD COAT (pyrolytic)
Triple Silver
- Cardinal 366
- PPG SolarBan 70
- Guardian ClimaGuard 62/27
Double Silver
- Cardinal 270 & 272
- PPG SolarBan 60
- AFG TIPS, TIR, & TIAC
- Guardian ClimaGuard 71/38
Single Silver
- Cardinal 179
- PPG Sungate 100
- Guardian ClimaGuard 75/68
- Pilkington Energy Advantage
- PPG Sungate 500
- AFG Comfort E2
Maximum Overall Thickness Range
1.9” or 48 mm
2.0” or 50 mm
2.1” or 53 mm
2.5” or 63 mm
Glass Thickness
3/32” or 2.5 mm
5/32” or 4 mm
1/4” or 6 mm
1/2” or 12 mm
Glass Thickness
3/32” or 2.5 mm
1/4” or 6 mm
1/2” or 12 mm
Maximum Overall Thickness Range
1.9” or 48 mm
2.0” or 50 mm
2.2” or 55 mm
PVB WITH LOW-E MODE (LAMINATED GLASS WITH LOW-E)
When working with laminated glass that has a Low-E coat-
ing placed against the PVB inner-layer, the Glass-Chek
PRO is capable of helping you identify which surface has
the Low-E coating. To perform this function, the meter must
be switched into “PVB WITH LOW-E” mode (see page 1).
When testing laminated glass with Low-E, the meter will test
laminated pieces of glass alone, and it will also test lami-
nated
Low-E glass that has been built into a double pane
window assembly. For double pane window assemblies,
the GC3000 meter must be placed against the side of the
window that contains the laminated Low-E piece of glass.
The rst screen that appears will show the thickness of the
overall laminated piece of glass, the air space, the second
pane of glass thickness, and also the overall thickness of
the double pane window assembly. The second screen will
show the make-up of the laminated Low-E piece of glass.
The meter has been designed to add the thickness of the
PVB layer to the thickness of the glass that contains no Low-
E coating. For the piece of glass coated with Low-E, the
meter will display the actual thickness of the glass itself.
This means that the piece of glass that has an abnor-
mal (larger) glass thickness (caused by adding the
PVB layer thickness to the glass thickness) will be the
pane that is clear of any Low-E coating.
The piece of glass that is displayed as a “normal”
thickness (0.124” for example) is the pane that has the
Low-E coating on it.
The display examples below correspond with how the meter would read the example
at right. Screen 1 displays the thickness of the entire window. The “PANE 1” result on
the rst screen refers to the thickness of the laminated Low-E glass assembly. Screen
2 displays the details of the laminated Low-E glass assembly only. Screen 3 conrms
the presence of a Low-E coating and displays the type of Low-E.
The “normal” thickness of .124” (Screen 2 / Line 3) indicates the Low-E coating is on
the 2nd pane (surface 3) of the laminated portion of the window.
1) 2) 3)
Pane 1 (0.124”) + PVB Layer (0.035”) = 0.159” on near side of coating (Screen 2 Line 1)
Pane 1 (0.124”) + PVB Layer (0.035”) + Pane 2 (0.124”) = 0.283” total laminated glass thick-
ness (Screen 1 Line 1 and Screen 2 Line 4)
Air Space Thickness (.500”) (Screen 1 Line 2)
Total Window Thickness (0.907”) (Screen 1 Line 4)
SPECIFICATIONS
POWER SOURCE 9 volt alkaline battery (NEDA 1604A) only
PHYSICAL DIMENSIONS 3.5” x 5.5” x 1.7 inch (89 x 140 x 43mm)
WEIGHT 0.75 pounds
MAXIMUM LASER OUTPUT <1mW (2M laser product)
LASER WAVELENGTH 650 - 680 nm
STORAGE TEMPERATURE -10 to +60 degrees Celsius
OPERATING TEMPERATURE 0 to +40 degrees Celsius
DISPLAY 4 lines X 20 characters
ACCURACY:
-High Resolution Mode -Low Resolution Mode (Default)
Pane 1 0.004 inch (0.1mm) Pane 1 0.008 inch (0.2mm)
Air Space 0.012 inch (0.3mm) Air Space 0.012 inch (0.3mm)
Pane 2 0.006 inch (0.15mm) Pane 2 0.012 inch (0.3mm)
This product complies with IEC 60825-1 and FDA regulation 21 CFR 1040.10.
The thickness tolerance is calibrated to NIST traceable standard No. 821/268634-03.
AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) -- Tolerance specications for at glass
When operating the GC300 in “STANDARD” mode, the measurements will be rounded to the nearest standard ac-
cording to the table below:
DESIGNATION TOLERANCE
mm
2.5
3
4
5
6
8
10
12
inches
0.09
0.12
0.16
0.19
0.23
0.32
0.39
0.50
mm max.
2.57
3.40
4.19
5.05
6.20
8.43
10.31
13.49
mm min.
2.16
2.92
3.78
4.57
5.56
7.42
9.02
11.91
inches min.
0.085
0.115
0.149
0.180
0.219
0.292
0.355
0.469
inches max.
0.101
0.134
0.165
0.199
0.244
0.332
0.406
0.531
TRADITIONAL
DESIGNATION
3/32 in. (single)
1/8 in. (double)
5/32 in.
3/16 in.
1/4 in.
5/16 in.
3/8 in.
1/2 in.
PANE 1
AIR SPACE
PANE 2
AIR SPACE
PANE 3
SINGLE LITE GLASS
GLASS
GLASS
PANE 1
AIR SPACE
PANE 2
Suspended Film
(
PANE 1
AIR SPACE
AIR SPACE
PANE 2
Suspended Film
(
LAMINATED PANE 1 (0.124”)
LAMINATED PANE 2 (0.124”)
WINDOW PANE 2 (0.124”)
AIR SPACE (0.5”)
Glass
Surface # 1 2 3 4 5 6
PVB Layer
(0.35”)
(
Low-E
(
Whole Window
Laminated
Glass
4
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