turck Q45AD9D Operating Manual

Photoelectric sensor
diffuse mode sensor
Q45AD9D
Type code
Ident no.
Operating mode
Light type
Wavelength
Range
Ambient temperature
Voltage
Non-actuated current consumption
Actuated current consumption
No-load current I
0
Output function
Switching frequency
Device designation
Design
Dimensions
Housing material
Lens
Connection
Cable length
Cable cross section
Protection class
MTTF
Protection type
Ex approval acc. to conformity certificate
Switching state
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Q45AD9D
3037617
diffuse mode sensor
IR
880 nm
0...300 mm
-40...+70 °C
Nom. 8.2 VDC
ð 1 mA
ï 2.1 mA
ð 2.1 mA
light operation, NAMUR
ð 100 Hz
Ex II 1 G Ex ia IIC T5
rectangular, Q45
87 x 54.1 x 44.5 mm
plastic, PBT
plastic, acrylic
cable, PVC
2 m
2 x 0.5 mm
2
IP67
67 years acc. to SN 29500 (Ed. 99) 40 °C
Ex ia IIC T6
KEMA 03ATEX 1441 X
LED red
ATEX category II 1 G, Ex zone 0
Cable, PVC, 2 m
Protection class IP67
Sensitivity adjusted via potentiometer
Operating voltage: 5...15 VDC
NAMUR output: dark <= 1.2 mA ; light
>= 2.1 mA
Acc. to EN 60947-5-6 (NAMUR)
Wiring diagram
Functional principle
Like retroreflective sensors, diffuse mode sen-
sors also contain emitter and receiver circuitry
in the same housing. However, diffuse mode
sensors do not detect the interruption of the
light beam but the reflection of the object. An
object is detected if it reflects sufficient light
back to the receiver. The switching distance of
diffuse mode sensors thus largely depends on
the object's reflectivity. This type of sensor is
especially suited for detection of transparent
objects (diffuse mode sensor with or without
background suppression or convergent mode
sensors).
Excess gain curve
Excess gain in relation to distance