Photoelectric Beam Detector

NRTS Series

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１． Outline

Dual beam detector NRTS series

is a part of Red Barrier series.

*30m 60m 90m (Outdoor) range *60m 120m 180m (Indoor) range

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２． Functions & Features(1) Two Beams (2) High Grade Spherical Fresnel Lens ① Sharp focused beam ray (a) Allows 100 times sensitivity (b) Minimizes unnecessary beam reflection. (c) Minimizes receiving unnecessary external light. ② Cut the unnecessary external lights ③ Integrated optical scope (a) Matches beam and scope direction (b) Shows the clear sharp target

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(3) 100 times sensitivity allowance(4) Easy optical alignment(5) IP rate : IP55(6) Adjustable Beam Interruption Time

(7) AGC (Auto Gain Control)

(8) Unique Knockout Structure

(9) Mount bracket

(10) Heater (Option)

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(1) Twin Beams offers stable Operation

When the bugs, falling leaves or other flying objects block the one beam, other one beam still can keep unit correctly without making false alarms.

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(2) High Grade Spherical Fresnel Lens

Transmitter Receiver

Lens

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① The sharp focused beam ray at long distance achieves (a)100 times sensitivity allowance.

This high grade lens focuses the beam ray on the receiver without the big beam power loss. 　 * Refer to (3) for further detail.

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Distance Beam Diameter 30m 1.0m 60m 2.0m 90m 3.0m

36mm distance between 2 beams

Distance

BeamDiameter

Focused beam diameter

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(b) Minimize unnecessary beam reflection

Wal l

* Thi s hi gh gr ade l ens f ocuses t he beam r ay on t he r ecei ver wi t hout t he bi g spr ead angl e. The beam r efl ect i on f r om t he wal l does not come t o t he r ecei ver .

Refl ect ed beam

Bl ock Obj ect

NRTS　 Lens

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Wal lRefl ect ed beam

Bl ock Obj ect

* The nor mal l ens f ocuses t he beam r ay on t he r ecei ver but has wi de spr ead angl e. The beam r efl ect i on f r om t he wal l comes t o t he r ecei ver .

Normal　 Lens

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(c) Minimizes receiving unnecessary external light.

* Thi s hi gh gr ade wel l f ocused l ens makes t he nar r owbeam r ecei vi ng angl e and does not r ecei ve t he l i ght outof i t s angl e.

Recei ver

Beam r ecei vi ng angl e

does not r ecei ve

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② Cut the unnecessary external lights

Li ghtwave l engt h

Li ght power

Appr ox. 800 nm

Vi si bl el i ght ar ea

Near I nf r ar edl i ght ar ea

Cutt he vi si vl e

l i ght

Li ght cutchar act ar i st i c

of t he l ens

Emi t t i ng l i ghtchar act ar i st i c oft he t r ansmi t t er

Li ght r ecei i ngchar act ar i st i c of

t he r ecei ver

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③ Integrated optical scope

Scope

Transmitter Receiver

(a) Matches beam and scope direction

The beam and scope direction is same and fixed as the scope is integrated on the lens.

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(a) Matches beam and scope direction

The beam and scope direction is same and fixed as the scope is integrated on the lens.

Scope direction

Beam direction

Easy to align

Difficult to find the target

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(b) Shows the clear sharp target

The well designed scope offer the very clear target image. Therefore it is very easy to align the optics.

Clear image Unfocused image

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(3) 100 times sensitivity allowance

Stable operation is maintained even if 99% of beam power is lost by rain, snow, fog, dust or other objects.

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Beam Power 100%

Beam Power 1%

I nt er f er ence Rai n, Snow, Fog, Dust or ot her obj ect s

No I nt er f er ence

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(a) Scope for Rough Alignment

(4) Easy Optical Alignment

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(b) LED Level Indicator for Fine Alignment

LED

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(c) Tester Level for Fine Alignment

3.0500

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(5) IP55 (Ingress Protection Rate)

IP55 : Ingress of dust is not entirely prevented, but it must not enter in sufficient quantity to interfere with the satisfactory operation of the equipment; complete protection against contact

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IP55 : Water projected by a nozzle (6.3mm) against enclosure from any direction shall have no harmful effects. *Test duration: at least 3 minutes *Water volume: 12.5 liters per minute *Pressure: 30 kN/m² at distance of 3m

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(6) Adjustable Beam Interruption Time

It is 50 mSec to 700 mSec .

It is selectable according to the application.

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(7) AGC (Auto Gain Control)

Control the Alarm Level according to the receiving Beam Power.

If the receiving Beam power reduced very much in a short time, it could make Alarm even if Beam power is not blocked 100%. It means the unit always keeps the suitable alarm level automatically.

This clever NRTM is always watching the receiving beam power and changes the alarm level to keep stable operation.

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(8) Unique Knockout Structure

It is not necessary to cut the cover for making the knockout hole.

The base has the enough height to make the knockout hole for wiring.

It keeps IP55 for any application.

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(9) Pole mount bracket

This is used for the pole installation.Without this mount bracket, the chassis bends and it makes the installation difficult.

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Mount bracket

Pole

Chassis

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(10) Heater (option)

NRTM works down to

– 25 °C .

But for the stable operation under the cold temperature below – 10 °C , this heater is very useful as the it warm up the inside of unit. 2 pieces are one set.

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Heater

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3. Installation case(1) Factory

Fact or yPr ot ect i on

For t he Fense

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(2) Warehouse

War ehousePr ot ect i on

t he Wi ndows&

t he Ent r ance

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(3) Home

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4. Specifications

123456789101112 Power13 Alarm

50msec 700msec～100 times

- 25℃ +55℃ RH95% or less～

DC10.5V 28V No- Polarity～ （ ）

- 30℃ +65℃ RH95% or less～

Tx 15mA/ 27mA/ 38mA, Rx 24mA： ：

Specifications

Auto gain control Available

IndicatorsLED lights when the power is ON. LED lights when the alarm outputs.

AlarmTamper

30m/ 60m/ 90m (outdoor), 60m/ 120m/ 180m (Indoor)

Horizontal:± 90° Vertical:± 5°：

1c, DC30V, 0.1A, Retention time 1 Sec.1b, DC30V, 0.1A, While the cover is opened.

alignment angle

ItemsInput voltageCurrent draw

Operating temperature and humidityStorage temperature and humidity

Protection rangeSensitivity allowance

Interruption time

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14 Rough15 Fine16 Fine1718192021

Scope

Color Black, Munsell approx. N1.0CE, RoHS, CCC

W77× H177× D83760g (Tx,Rx total)

Standard

DimensionWeight

IP55

LED lights according to the beam powerVoltage output for the voltmeter

Optical alignment

IP rate

Thank you !

Atsumi Electric Co.,Ltd.