● Setting in the range which allows stable operation achieves
higher reliability against changes in the operating
environment generated after installation.
Operation indicator(Red LED)
Light ON mode

Stability indicator(Green LED)
ONCurrent consumption NPN output: 27mA maximum
PNP output: 35mA maximum(Receiver)Open collector output(NPN/PNP output selectable)
Control output
Load voltage: 30V DC maximum
Load current: 80mA maximum
0.5ms maxium
Response time
Hysteresis
10% or less of the detecting distanceIndicator

Operation indicator: Red LED
Stability indicator: Green LEDSensitivity control

Potentiometer *1

Material
Cable
Weight (approx)
Accessory

Case: LCP (Filler: PP),Lens: PC
Permanently attached cord
outer dimension: Ø2.8mm, length: 2m,0.15mm2, 3-core
40g
Screw, nuts, washers, mounting screws
and a screwdriver for adjustment*1 Do not apply a torque beyond 0.1N•m to the Sensitivity adjustment
volume with Output converter.

ON● PNP output

Threshold×0.8● Clean the lens and the case by a soft and dry cloth eriodically.
Do not use organic solvents such as ammonia, caustic soda,
alcohol or thinner for cleaning.

Indicator

Black: OUT
Blue: 0V

Output converter
circuitBrown● Check the mounting position and the optical axis before fixing
the SA1N Once the sensor is fixed, the mounting angle is notadjustable.
● Be sure to route the sensor cables separate from any powertransmission or high voltage line, or else use shielded cables.
Using the same conduit or duct as high voltage or power lines
will cause malfunctions or damage because of electromagneticinduction.
● Turn off the power supply before the load, because the SA1N
will start to operate 20ms from turning on.
● Turn off the power supply, side of the load first.
The SA1N may generate an output pulse when the power isturned off.
● Avoid turning the power on and off consecutively.
● Though the SA1N has IP64 rated housing, do not use theSA1N where water is splashing constantly.
● Mounting brackets are not attaches.
● Use attached screws (M2.6×12mm) nuts and washer for
mounting the SA1N.
Tighten the nuts with a torque of 0.1 N•m or less. The thread
may be stripped if an excess torque is applied.

2300
169

● Keep any background away from the detection position.
If necessary use black surface with low reflectance.
● When any light reflecting object is in the background.

(1)

Sensitivity adjustment volumewith Output converter circuit
Brown: +V

(2)

.

.

(3)

.

.

.

.

● When no light reflecting object is in the background.
(1) Place a detection object at a given position and turn up theVolume from MIN. until the Operation indicator turns on(Point A).
(2) Set the Volume at the middle point between Point A andMAX.
(1)

(2)

BlackVR circuitBlue● Main unit

All dimensions in mm.

Operation indicator (Red LED)
Stability indicator (Green LED)
792.3.

.

.

.

● After setting complate, make sure that both the Operation
indicator(Red) and Stability indicator (Green) and turns onwhen the detection object is placed at the given position.

● Dispose of the SA1N as an industrial waste.

Ø2.9.5

Power voltage

12 to 24V DC Ripple p-p 10% maximum(Operationg range 10.2 to 26.4V DC(including Ripple))Threshold5.8(1) Place a detection object at a given position and turn up theSensitivity adjustment volume from MIN. until the Operation
Brown: +Vindicator (Red) turns on (Point A).
(2) Remove the object and turn down the Volume from MAX. until
Black: OUT
the Operation indicator (Red) turns off (Point B).
(MAX. is regarded as Point B if the Operation indicatordoesn’t turn off at MAX.)
Blue: 0V
(3) Set the Volume at the middle point between Points A and B.

Sensitivity
adjustment volume

Ø4

Sensing range
Standard detector
Light source

Threshold×1.2

Indicator

2.5Type No.

Convergent-reﬂective
Light ONNPN Output
SA1N-GN1V50-2MPNP Output
SA1N-GP1V50-2M
3 to 50mm
White paper: 50×50mm
Red LED(640nm)

ON● NPN output

14Detection system
Operation mode

(5)

● When extending the cables, use conductors of 0.3mm2
cross-sectional area of more and check the voltage drop.
The length should not exceed 10m.
● Limit the current of the power supply to 1A.

(5)● After aligning the optical axis and adjusting the sensitivity,
use a detection object to block and unblock the light beam
several times to make sure that the both operation are within
the range that allows stable activation and deactivation.

Sensitivity
adjustment volume

2000● When using a DC power unit with an insulated transformer
or a power supply, be sure to ground the frame ground (FG)terminal.

(3)

N: NPN Output
P: PNP Output● The operation indicator (Red LED) and stability indicator(Green LED) show the levels of received light intensity as
described in the figure.

6.75

SA1N-G□1VF50-2M● The output transistor becomes OFF when the SA1N shortcircuit or overload. Make sure all connections are correct
before turning the power on.

20Caution notices are used where inattention might cause
personal injury or damage to equipment.

Ø2.8

Do not apply the voltage over the rated range or AC voltage,otherwise the switch may blow out or burn.

3.5

Confirm that the delivered product is what you have ordered.
Read this instruction sheet to make sure of correct operation.
Make sure that the instruction sheet is kept by the user.

● Sensitivity adjustment volume● When using the power supply with a large power supply
capacity, insert a fuse or breaker according to the number ofsensors used.

2Miniature Photoelectric SwitchesSA1N Series
Convergent reflective type

Ambient humidity
Operating :35 to 85%RH (no condensation)
Ambient light
Operating :3,000lx maximum
Insulation resistance 500V DC mega 20MΩ minimum
Dielectric withstanding 500V AC for 1 minute
10 to 55Hz, 1.5mm amplitude
Vibration resistance
2 hour each in 3 direction
Shock resistance
500 m/s2, 3 times each in 3 directions
Degree of protection IP64 (IEC60529)● High frequency fluorescent lamps or inverters may cause
faulty operation as these equipment may emit light or noiseof similar modulated frequency that photo sensors generate.
Do not install the SA1N in the vicinity of high frequipment.
● A transient overcurrent may flow in when a capacitor or a coil
is connected to the load.

Internal circuit

INSTRUCTION SHEET• Environmental specification
Operating : -25 to +55°C
Ambient temperature Stroage : -40 to +70°C(no freezing and condensation)

Internal circuit

B-2357(0)

Ø2.8
2.9

EU Authorized Representative: APEM SAS55, Avenue Edouard Herriot BP1, 82303 Caussade Cedex, France
2-6-64, Nishimiyahara, Yodogawa-ku, Osaka, Japan
https://www.idec.com
2024.02