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PRA series Round type photo sensor
- Improved visibility with wide viewing angle LED
- Through beam, Retroreflective, Diffuse reflective Type
- Wiring-out type, connector type connection
- Metal & Plastic Case Selectable
CERU

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Main features

PRA

Specification

Division

Through-beam

Retro-reflective

(M.S.R.)

Diffuse-reflective

Control

output

NPN

PRA-T20N

PRA-M4N

PRA-R1N

PNP

PRA-T20P

PRA-M4P

PRA-R1P

Sensing distance

20 m

0.3 ~ 4 m

1 m

Hysteresis distance

-

Less than 20 % of the sensing range

Detecting object

Ø10 mm more (Opaque)

Ø25 mm more (Opaque)

White non-glossy paper (100 x 100 mm)

light source

(emission wavelength)

IR LED (855 nm)

Power voltage

12 - 24 V d.c. Class 2 ± 10 % Ripple (p-p) max. 10 %

Current consumption

Emitter : 15 mA,

Receiver : 20 mA

Max. 30 mA

Control output

NPN or PNP open collector output

Load current - max. 100 mA (26.4 V d.c. standard)

Residual voltage - NPN : max. 1.5 V, PNP : max. 1.5 V

Operation mode

Light ON / Dark ON (By white cable)

※ In terms of through-beam type, receiver only

Indicator light

Control output light : Orange LED, Stability light : Green LED

(Diffuse-reflective of Through-beam green LED is power indicator)

Sensitivity adjustment

V/R adjustment

Protective

circuit

Common

- Power reverse connection protection,

- Output short-circuit over-current protection,

- Output reverse connection protection,

- Output short-circuit alarm

Individual

-

Mutual interference prevention function

Response time

1 ms or less

Insulation Resistance

More than 20 MΩ (500 V d.c. mega)

Withstand Voltage

1,000 V a.c. (50/60 Hz for 1 minute)

Noise immunity

Square Wave Noise (Pulse Width 1 μs) ±240 V d.c. induced by Noise Simulator

Vibration resistance

10 ~ 55 Hz, sweep : 1.5 mm, X·Y·Z 2 in each direction for 2 hours

Shock resistance

500 m/s², X·Y·Z each direction 3 times

Ambient illumination

Sunlight : max. 11,000 Lux,

Incandescent : max 3,000 Lux

Ambient temperature range

Operating temperature : -20 ~ +55 ℃

During storage : -40 ~ +70℃ (Without condensation or icing)

Ambient humidity

35 ～ 85 % RH (Without condensation or icing)

Protection

IP69K (IEC standard)

Certification

 CE RU

Texture

Case

- Metal : Brass chrome plated

- Plastic : Plastic

Display,

Lens

PC

Accessory

Common

- Metal : 2Fixing nut, 1 washer, V / R adjustment screwdriver

- Plastic : 2Fixing nut, V / R adjustment screwdriver

Individual

-

Mirror (HY-M5)

-

Weight

Cable Type

- Metal : Approx 165 g (195 g)

- Plastic : Approx 120 g (150 g)

- Metal : Approx 85 g (195 g)

- Plastic : Approx 65 g (175 g)

- Metal : Approx 85 g (115 g)

- Plastic : Approx 65 g (95 g)

Connector Type

- Metal : Approx 80 g (150 g)

- Plastic : Approx 35 g (65 g)

- Metal : Approx 45 g (155 g)

- Plastic : Approx 20 g (130 g)

- Metal : Approx 45 g (75 g)

- Plastic : Approx 20 g (50 g)

Connection method

Cable Type

Number of wires : 4P, Outer diameter : 4 Ø, length : 2 m (through-beam type is 2P)

Connector Type

M12 connector wiring (M12 Repeater cable sold separately)

※ Please note that the sensing distance may vary depending on the size of the object to be detected, its surface condition, and whether or not it is glossy.

- For PRA-T20NWM, PRA-TL20NWM (Transmitter) and PRA-TR20NWM (Receiver) are 1SET.

- For PRA-T20PWM, PRA-TL20PWM (Transmitter) and PRA-TR20PWM (Receiver) are 1SET.

- For PRA-T20NCM, PRA-TL20NCM (Transmitter) and PRA-TR20NCM (Receiver) are 1SET.

- For PRA-T20NWP, PRA-TL20NWP (Transmitter) and PRA-TR20NWP (Receiver) are 1SET.

- For PRA-T20PWP, PRA-TL20PWP (Transmitter) and PRA-TR20PWP (Receiver) are 1SET.

- For PRA-T20NCP, PRA-TL20NCP (Transmitter) and PRA-TR20NCP (Receiver) are 1SET.

- For PRA-T20PCP, PRA-TL20PCP (Transmitter) and PRA-TR20PCP (Receiver) are 1SET.