An adjustable range to 2.5 m 8.202 ft allows plenty of space for installation.
1 m 3.281 ft sensing range type also available. Adjust the volume easily to suit your needs when using at close range.

Impervious to variations color or angle

The optical system has been optimized. Since the sensor is hardly influenced at all by angles or the gloss of objects compared to the previous model, it is possible to detect both white objects and black objects at almost a constant distance.
(The difference in sensing range between white non-glossy paper and gray non-glossy paper (lightness: 5) is approx 5% when set at a distance of 2 m 6.562 ft.)

Hardly affected by background objects

Because the sensor doesn’t detect objects outside the preset sensing field by using the 2-segment photodiode adjustable range system, it will not malfunction even if someone walks behind the sensing object or machines or conveyors are in the background.
Note:
Please note that malfunction may occur when there are specular objects or objects with a mirror-like surface in the background.

Convenient terminal block type

Cabling enabled by way of a terminal block that eliminates waste.

An easy to set adjuster with indicator

Equipped with a 2-turn adjuster with indicator, making it easy to set for short or long distances.

Equipped with both NPN and PNP outputs [EQ-51□]

We’ve added a DC-voltage type with NPN and PNP transistor outputs all in one sensor. Its BGS / FGS function controls any background effects for more stable sensing.

Multi-voltage [EQ-50□]

Because it can function with 24 to 240 V AC and 12 to 240 V DC, almost any power supply anywhere in the world will do.

Convenient timer function models

Types with an ON-delay / OFF-delay timer available. OFF-delay, e.g. useful when the response of the connected device is slow, ON-delay, e.g. useful to detect objects that take a long time to move.
– Operation: ON-delay, OFF-delay
– Timer period: 0.1 to 5 sec.
(individual setting possible)

BGS / FGS functions make even the most challenging settings possible!

＜The BGS function is best suited for background not present＞

– When object and background are separated
BGS (Background suppression) function
The sensor judges that an object is present when light is received at position A of the light-receiving element (2-segment element).
This is useful if the object and background are far apart.
Not affected if the background color changes or someone passes behind the conveyor.

＜The FGS function is best suited for background present＞

– When object and background are close together
– When the object is glossy or uneven
FGS (Foreground suppression) function
The sensor judges that no object is present when light is received at position B of the light receiving element (2-segment element) (The conveyor is detected). This function is useful if the object and the background are close together or if the object is glossy or uneven.
However, sensing is impossible if there is no background (conveyor, etc.).

Little affected by contamination on lens

Even if the lens surface gets somewhat dirty from dust particles, there is very little change in the operation field, by usage adjustable range system.

Waterproof

The sensors features an IP67 rating to allow their use in process lines where water is used or splashed.

Note: If water splashes on the sensor during sensing operation, it may sense water as an object.

Specifications

Type		Multi-voltage
Type			With timer		With timer
Model No.		EQ-501	EQ-501T	EQ-502	EQ-502T
Regulatory compliance		・Low Voltage Directive ： EN IEC 60947-5-2 ・EMC Directive ： EN IEC 60947-5-2 ・RoHS Directive ・GB/T 14048.10
Certification		UL/c-UL certification
Adjustable range (Note 2,3)		0.2 to 2.5 m 0.656 to 8.202 ft		0.2 to 1.0 m 0.656 to 3.281 ft
Sensing range (at max. setting distance) (Note 3)		0.1 to 2.5 m 0.328 to 8.202 ft		0.1 to 1.0 m 0.328 to 3.281 ft
Hysteresis (Note 3)		10 % or less of operation distance
Repeatability (perpendicular to sensing axis)		10 mm (Note 3)		4 mm (Note 3)
Supply voltage		24-240 V AC ±10 % or 12 to 240 V DC ±10 % Ripple P-P 10 % or less
Power / Current consumption		AC: 4 VA or less DC: 3 W or less	AC: 5 VA or less DC: 4 W or less	AC: 4 VA or less DC: 3 W or less	AC: 5 VA or less DC: 4 W or less
Output		Relay contact 1a • Switching capacity: 2 50 V AC 3 A (resistive load), 30 V DC 3 A (resistive load) • Electrical life: 100,000 or more switching operations (switching frequency 1,200 operations/hour) • Mechanical life: 50 million or more switching operations (switching frequency 18,000 operations/hour)
	Output operation	Switchable either Detection-ON or Detection-OFF
	Short-circuit protection	–
Response time		20 ms or less (For EQ-50□T depends on the setting timer period)
Operation indicator		Orange LED (lights up when the output is ON)
Stability indicator		Green LED (lights up under stable operating condition)
Distance adjuster		2-turn mechanical adjuster with indicator
Sensing mode		–
Timer function		–	Incorporated with variable (0.1 to 5 sec.) ON-delay / OFF-delay timer	–	Incorporated with variable (0.1 to 5 sec.) ON-delay / OFF-delay timer
Automatic interference prevention function		Incorporated (Note 4)
Protection		IP67 (IEC)
Ambient temperature		–25 to +55 ℃ –13 to +131 ℉ (No dew condensation or icing allowed), Storage: –30 to +70 ℃ –22 to +158 ℉
Ambient humidity		35 to 85 % RH, Storage: 35 to 85 % RH
Ambient illuminance		Incandescent light: 3,000 Lx or less at the light-receiving face
Voltage withstandability		1,500 V AC for one min. between all supply terminals connected together and enclosure, 2,000 V AC for one min. between power supply and output terminals, 1,000 V AC for one min. between relay contact terminals
Insulation resistance		100 MΩ, or more, with 500 V DC megger among supply terminals, non-supply metal parts and relay contact output terminals as well as between relay contacts
Vibration resistance		10 to 55 Hz frequency, 1.5 mm 0.059 in double amplitude in X, Y and Z directions for two hours each
Shock resistance		500 m/s² acceleration (50 G approx.) in X, Y and Z directions three times each
Emitting element		Infrared LED (Peak emission wavelength: 855 nm 0.034 mil, modulated)
Receiving element		2-segment photodiode
Material		Enclosure: ABS, Front cover: Polycarbonate, Display cover: Polycarbonate
Connection method		Screw-on terminal connection
Cable		Suitable for round cable φ9 to φ11 mm φ0.354 to φ0.433 in
Cable length		Total length up to 100 m 328.084 ft is possible with 0.3 mm², or more, cabtyre cable.
Weight		Net weight: 100 g approx.
Accessory		Adjusting screwdriver: 1 pc.

Notes:

1)	Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23 ℃ +73.4 ℉.
2)	The adjustable range stands for the maximum sensing range which can be set with the distance adjuster. The sensor can also detect an object 0.1 m 0.328 ft, or more, away.
3)	The adjustable range, sensing range, hysteresis and repeatability are specified for white non-glossy paper (200 x 200 mm 7.874 x 7.874 in) as the object.
4)	Note that the detection may be unstable depending on the mounting conditions or the sensing object. In the state that this product is mounted, be sure to check the operation with the actual sensing object.

Type		DC-voltage
Type			With timer		With timer
Model No.		EQ-511	EQ-511T	EQ-512	EQ-512T
Regulatory compliance		・EMC Directive ： EN 60947-5-2 ・RoHS Directive
Certification		UL/c-UL certification
Adjustable range (Note 2,3)		0.2 to 2.5 m 0.656 to 8.202 ft		0.2 to 1.0 m 0.656 to 3.281 ft
Sensing range (at max. setting distance) (Note 3)		0.1 to 2.5 m 0.328 to 8.202 ft		0.1 to 1.0 m 0.328 to 3.281 ft
Hysteresis (Note 3)		10 % or less of operation distance
Repeatability (perpendicular to sensing axis)		10 mm (Note 3)		4 mm (Note 3)
Supply voltage		12 to 24 V DC ±10 % Ripple P-P 10 % or less
Power / Current consumption		45 mA or less
Output		NPN open-collector transistor • Maximum sink current: 100 mA • Applied voltage: 30 V DC or less (between output and 0 V) • Residual voltage: 1 V or less (at 100 mA sink current), 0.4 V or less (at 16 mA sink current) PNP open-collector transistor • Maximum source current: 100 mA • Applied voltage: 30 V DC or less (between output and +V) • Residual voltage: 1 V or less (at 100 mA source current), 0.4 V or less (at 16 mA source current)
	Output operation	Switchable either Detection-ON or Detection-OFF
	Short-circuit protection	Incorporated
Response time		2 ms or less (For EQ-51□T depends on the setting timer period)
Operation indicator		Orange LED (lights up when the output is ON)
Stability indicator		Green LED (lights up under stable operating condition)
Distance adjuster		2-turn mechanical adjuster with indicator
Sensing mode		Switchable either BGS or FGS function
Timer function		–	Incorporated with variable (0.1 to 5 sec.) ON-delay / OFF-delay timer	–	Incorporated with variable (0.1 to 5 sec.) ON-delay / OFF-delay timer
Automatic interference prevention function		Incorporated (Note 4)
Protection		IP67 (IEC)
Ambient temperature		–25 to +55 ℃ –13 to +131 ℉ (No dew condensation or icing allowed), Storage: –30 to +70 ℃ –22 to +158 ℉
Ambient humidity		35 to 85 % RH, Storage: 35 to 85 % RH
Ambient illuminance		Incandescent light: 3,000 Lx or less at the light-receiving face
Voltage withstandability		1,000 V AC for one min. between all supply terminals connected together and enclosure
Insulation resistance		20 MΩ, or more, with 250 V DC megger between all supply terminals connected together and enclosure
Vibration resistance		10 to 55 Hz frequency, 1.5 mm 0.059 in double amplitude in X, Y and Z directions for two hours each
Shock resistance		500 m/s² acceleration (50 G approx.) in X, Y and Z directions three times each
Emitting element		Infrared LED (Peak emission wavelength: 855 nm 0.034 mil, modulated)
Receiving element		2-segment photodiode
Material		Enclosure: ABS, Front cover: Polycarbonate, Display cover: Polycarbonate
Connection method		Screw-on terminal connection
Cable		Suitable for round cable φ9 to φ11 mm φ0.354 to φ0.433 in
Cable length		Total length up to 100 m 328.084 ft is possible with 0.3 mm², or more, cabtyre cable.
Weight		Net weight: 85 g approx.
Accessory		Adjusting screwdriver: 1 pc.

Notes:

1)	Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23 ℃ +73.4 ℉.
2)	The adjustable range stands for the maximum sensing range which can be set with the distance adjuster. The sensor can also detect an object 0.1 m 0.328 ft, or more, away.
3)	The adjustable range, sensing range, hysteresis and repeatability are specified for white non-glossy paper (200 x 200 mm 7.874 x 7.874 in) as the object.
4)	Note that the detection may be unstable depending on the mounting conditions or the sensing object. In the state that this product is mounted, be sure to check the operation with the actual sensing object.

Low Voltage Directive related information

Type	Multi-voltage
Type		With timer		With timer
Model No.	EQ-501	EQ-501T	EQ-502	EQ-502T
Utilization category	AC-12/DC-12
Impulse withstand voltage	2.5 kV
Output minimum operational current	DC 5 V 1 mA or more
Turn on time　／　Turn off time (Note 3)	20 ms / 20 ms
Maximum response frequency (Note 4)	25 Hz
Pollution degree	3 (Industrial environment)
Class of protection against electric shock	Out of classification
Excess gain	12 % (Note 5)

Note:

1)	Where measurement conditions have not been specified precisely, the conditions used were an ambient temperature of +23 ℃ +73.4 ℉.
2)	Be sure to add a short-circuit protection (a fuse or a breaker) to the power supply input and the output. In addition, use 5A or less fast blow fuse or breaker.
3)	Turn-On time and Turn-OFF time are the delay time between reference sensor and measurement sensor in case round plate rotates as below.
4)	The maximum response frequency is the value calculated below. Maximum response frequency = １ / (Turn on time＋Turn off time)
5)	Excess gain is the value in case the distance setting adjuster is positined in maximum state. In addition, sensing object 200mm x 200mm is the value in case of non-glossy white paper.