Banner QMT42 User Manual
QMT42 Series Long-Range Diffuse Sensors
Adjustable Sensing Distance of up to 6 m (20')
Printed in USA P/N 57890
Features
• Powerful, collimated infrared light source and special lensing allows reliable
long-range detection of even the darkest objects
• Compact, rugged, low cost self-contained sensors in metal die cast housings
• Leakproof IP67 (NEMA 6) construction for reliable sensing in harsh environments
• Outstanding electrical noise immunity
• Dual LED system indicates sensor performance
• Choice of integral cable or quick disconnect connector
Infrared, 880 nm
QMT42VN6DX
QMT42VN6DXQ
10 mm
(0.4")
to
6 m
(20')
2 m (6.5')
4-pin Euro QD
10-30V dc
NPN
Models Range Cable
Supply
Voltage
Output
Type
Excess Gain
QMT42VP6DX
QMT42VP6DXQ
2 m (6.5')
4-pin Euro QD
PNP
QMT42 Long-Range Diffuse Mode
WARNING . . .
Not To Be Used for Personnel Protection
Never use these products as sensing devices for personnel protection. Doing so could lead to serious injury or death.
These sensors do NOT include the self-checking redundant circuitry necessary to allow their use in personnel safety
applications. A sensor failure or malfunction can cause either an energized or de-energized sensor output condition. Consult your current
Banner Safety Products catalog for safety products which meet OSHA, ANSI and IEC standards for personnel protection.
Beam Pattern
Performance based on 90% reflectance white test card
1000
E
X
C
100
E
S
S
10
G
A
I
N
1
0.01 m
0.1 m
0.033 ft
0.33 ft
DISTANCE
QMT42DX
Diffuse Mode
1.0 m
3.3 ft
10 m
33 ft
30 mm
20 mm
10 mm
10 mm
20 mm
30 mm
0
1.5 m
0
5 ft
QMT42DX
Diffuse Mode
6.0 m
4.5 m
3.0 m
10 ft
DISTANCE
20 ft
15 ft
7.5 m
25 ft
1.2 in
0.8 in
0.4 in
0
0.4 in
0.8 in
1.2 in
!
QMT42 Series Long-Range Diffuse Sensors
page 2
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
19.2 mm
(0.76")
ø 3.2 mm
(0.125")
(4 Holes)
2 x 3.1mm
(0.12")
42.0 mm
(1.65")
18.0 mm
(0.71")
Green LED Power/Overload Indicator
Yellow LED
Output/Marginal Indicator
58.0 mm
(2.28")
2 x 3.1mm
(0.12")
23.9 mm (2)
(0.94")
27.1 mm (2)
(1.07")
Threaded M4 x 0.7
Mounting Holes
10.0 mm
(0.39")
12.3 mm
(0.48")
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