QMT42 Series Fixed-Field Sensors
Performance Curves
1000
QMT42FF
Series
100
10
500 mm
750 mm
1000 mm
1500 mm
2000 mm
1
10 mm
.4 in
100 mm
4 in
1000 mm
40 in
10000 mm
400 in
DISTANCE
Cutoff Point Deviation
The percentage of deviation indicates a change in the cutoff point for either 18% gray or 6% black targets, relative to the
cutoff point for a 90% reflective white test card. As an example, the cutoff point decreases 10% for a 6% reflectance black
target when the cutoff point is 2000 millimeters (79 inches) using a 90% reflectance white test card. In other words, the
cutoff point for the black target is 1800 millimeters (71 inches).
+10
+8
Cutoff Point Deviation
+6
+4
+2
18% Gray Color Sensitivity
0
6 % Black Color Sensitivity
-2
-4
-6
-8
-10
500 mm
(20 in)
750 mm
(30 in)
1000 mm
(39 in)
1500 mm
(59 in)
2000 mm
(79 in)
0
Cutoff Point Variation Relative to 90% Reflectance White Test Card
Dimensions
18.0 mm
(0.71")
Green LED Power/Overload Indicator
Yellow LED
Output/Marginal Indicator
19.2 mm
(0.76")
ø 3.2 mm
(0.125")
(4 Holes)
58.0 mm
(2.28")
2 x 3.1mm
(0.12")
10.0 mm (0.39")
12.3 mm (0.48")
2 x 3.1mm
(0.12")
76.2 mm
(3.00")
23.9 mm (2)
(0.94")
M12 x 1 x 18 mm
Euro-style
27.1 mm (2)
(1.07")
42.0 mm
(1.65")
Threaded M4 x 0.7
Mounting Holes
Figure 5. Cabled Models
Figure 6. Quick-Disconnect Models
All measurements are listed in millimeters (inches), unless noted otherwise.
4
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P/N 50756 Rev. B