Performance Curves

1

10

100

100 mm

4 in

1000 mm

40 in

10000 mm

400 in

10 mm

.4 in

DISTANCE

1000

QMT42FF

Series

500 mm

750 mm

1000 mm

1500 mm

2000 mm

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).

0

-8

-10

-6

-4

-2

0

+2

+4

+6

+8

+10

500 mm

(20 in)

750 mm

(30 in)

1000 mm

(39 in)

1500 mm

(59 in)

Cutoff Point Variation Relative to 90% Reflectance White Test Card

2000 mm

(79 in)

18% Gray Color Sensitivity

6 % Black Color Sensitivity

Cutoff Point Deviation

Dimensions

18.0 mm

(0.71")

ø 3.2 mm

(0.125")

(4 Holes)

58.0 mm

(2.28")

Green LED Power/Overload Indicator

Yellow LED

Output/Marginal Indicator

10.0 mm (0.39")

12.3 mm (0.48")

Threaded M4 x 0.7

Mounting Holes

23.9 mm (2)

(0.94")

2 x 3.1mm

(0.12")

19.2 mm

(0.76")

2 x 3.1mm

(0.12")

27.1 mm (2)

(1.07")

42.0 mm

(1.65")

Figure 5. Cabled Models

M12 x 1 x 18 mm

Euro-style

76.2 mm

(3.00")

Figure 6. Quick-Disconnect Models

All measurements are listed in millimeters (inches), unless noted otherwise.

QMT42 Series Fixed-Field Sensors

4

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P/N 50756 Rev. B