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QMT42 Series Long-Range Diffuse Sensors

page 2

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")

Cabled models

Sensing Beam

Adjustments 4-turn slotted Gain (sensitivity) adjustment potentiometer (clutched at both ends of travel)

Supply Protection Circuitry Protected against reverse polarity and transient voltages

Output Configuration SPDT (complementary) solid-state dc switch; Choose NPN (current sinking) or PNP (current sourcing) models.

Light operate:

N.O. output conducts when the sensor sees its own modulated light

Dark operate:

N.C. output conducts when the sensor sees dark

Output Rating 100 mA maximum (each output)

Off-state leakage current: <5 microamps at 30V dc;

On-state saturation voltage: <1V at 10 mA dc; <1.5V at 100 mA dc

Output Protection Circuitry Protected against false pulse on power-up and continuous overload or short-circuit of outputs

Overload trip point ≥130mA, typical, at 20ºC

Output Response Time 1 millisecond on and off

NOTE: 100 millisecond delay on power-up; outputs are non-conducting during this time

Indicators Two LEDs: Green and Yellow

GREEN glowing steadily = power to sensor is ON

GREEN flashing = output is overloaded

YELLOW glowing steadily = light is sensed; normally open output ON

YELLOW flashing = marginal excess gain (1-1.5x) in light condition

Repeatability of Response 250 microseconds

Certifications Approvals in process

Construction Housings are die-cast zinc alloy with black acrylic polyurethane finish; lenses are acrylic

Environmental Rating IP67; NEMA 6

Connections 2 m (6.5') or 9 m (30') attached cable, or 4-pin Euro-style quick-disconnect fitting; Cables for QD models

are purchased separately

Operating Temperature -20º to +55ºC (-4º to +131ºF); Maximum relative humidity 90% at 50ºC (non-condensing)

Sensing Hysteresis Less than 20% of set sensing distance

Infrared, 880 nm

Supply Voltage and Current 10 to 30V dc (10% maximum ripple) at less than 40 milliamps

QMT42DX Specifications

QMT42DX Dimensions

M12 x 1 x 18 mm

Euro-style

76.2 mm

(3.00")

Quick-Disconnect models

1 2 3 4

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