A-51
(A) 
Photo
electric 
sensor
(B) 
Fiber
optic
sensor
(C) 
Door/Area
sensor 
(D) 
Proximity
sensor 
(E) 
Pressure
sensor 
(F) 
Rotary
encoder 
(G) 
Connector/
Socket 
(H)
Temp.
controller
(I)
SSR/
Power
controller
(J) 
Counter 
(K) 
Timer 
(L) 
Panel
meter 
(M)
Tacho/
Speed/ Pulse
meter 
(N)
Display
unit
(O)
Sensor
controller 
(P)
Switching
mode power
supply 
(Q)
Stepper
motor&
Driver&Controller
(R)
Graphic/
Logic
panel
(S)
Field
network
device
(T) 
Software
(U) 
Other
Long Sensing, Amplier Built-in type with Universal voltage (terminal)
※
1: It is same when using the MS-4 reflector (sold separately). The sensor can detect under 0.1m.
※
2: When using the MS-2 reflector, the sensing distance is 0.1 to 2m. The sensor can detect under 0.1m.
※
3: It is for Non-glossy white paper(200×200mm)
※
The temperature or humidity mentioned in Environment indicates a non freezing or condensation environment.
Model
Standard type BX15M-TDT  BX5M-MDT  BX3M-PDT  BX700-DDT 
With Timer BX15M-TDT-T  BX5M-MDT-T  BX3M-PDT-T  BX700-DDT-T 
Sensing type Through-beam
Retroreective
(Standard type)
Retroreective
(Built-in polarizing lter)
Diffuse reective
Sensing distance 15m 0.1 to 5m(MS-2)
※
1
0.1 to 3m(MS-3)
※
2
700mm
※
3
Sensing target
Opaque materials of  
Min. ø15mm
Opaque materials of Min. ø60mm
Translucent, 
opaque material
Hysteresis
-
Max. 20% at rated setting  
distance
Response time Max. 1ms
Power supply 12-24VDC ±10%(Ripple P-P:Max. 10%)
Current consumption Max. 50mA
Light source Infrared LED(850nm) Red LED(660nm) Infrared LED(940nm)
Sensitivity adjustment Built-in VR
Operation mode Selectable Light ON or Dark ON by switch
Control output
NPN or PNP open collector output
●Load voltage: Max. 30VDC  ●Load current: Max. 200mA  ●Residual voltage
 -
 NPN:Max. 1V, PNP:Max. 2.5V
Relay life cycle Mechanically : Min. 50,000,000, Electrically : Min. 100,000
Self-diagnosis output Green LED turns on at unstable operation and output(transistor output) turns on
Timer function Selectable ON Delay, OFF Delay, One Shot Delay by slide switch [Delay Time : 0.1 to 5sec.(Adjustable VR)]
Indicator Operation indicator : yellow LED, Self-diagnosis indicator : green LED
Insulation resistance Min. 20MΩ(at 500VDC megger)
Noise resistance ±240V the square wave noise(pulse width : 1㎲) by the noise simulator
Dielectric strength 1500VAC 50/60Hz for 1minute
Vibration
Mechanical 1.5mm amplitude or 300m/s
2
 at frequency of 10 to 55Hz(for 1 min.) in each of X, Y, Z directions for 2 hours
Malfunction 1.5mm amplitude or 300m/s
2 
at frequency of 10 to 55Hz(for 1 min.) in each of X, Y, Z directions for 10 minutes
Shock
Mechanical 500m/s²(approx. 50G)  in each of X, Y, Z directions for 3 times
Malfunction 100m/s²(approx. 10G)  in each of X, Y, Z directions for 3 times
Ambient illumination Sunlight : Max. 11,000㏓, Incandescent lamp : Max. 3,000㏓(Receiver illumination)
Ambient temperature  -20 to 55℃, storage : -25 to 70℃
Ambient humidity  35 to 85%RH, storage : 35 to 85%RH
Protection IP66(IEC standard)
Material Case, Lens cover: PC, Sensing part: Acrylic
Accessory
Individual
-
Mirror(MS-2) Mirror(MS-3)
-
Common VR adjustment driver, Mounting bracket, Bolts, Nuts
Approval
Unit weight
TDT: Approx. 211g
TDT-T: Approx. 212g
MDT: Approx. 123g
MDT-T: Approx. 124g
PDT: Approx. 141g
PDT-T: Approx. 142g
DDT: Approx. 116g
DDT-T: Approx. 117g
Environment
 Specifications
 DC power type, Solid state output type