1. Photoelectric Beam Detector NRTM Series

2. 2 １． Outline Dual beam detector NRTM series is a part of Red Barrier series. * 30m 60m 90m (Outdoor) range *Selectable 4 frequencies (4ch) *EDC (Environmental Discrimination Circuit)

3. 3 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

4. 4 (3) 100 times sensitivity allowance (4) Easy optical alignment (5) EDC (Environmental Discrimination Circuit) (6) Selectable 4 frequencies (4ch) (7) IP rate : IP55 (8) Adjustable Beam Interruption Time

5. 5 (9) AGC (Auto Gain Control) (10) Unique Knockout Structure (11) Mount bracket (12) Heater (Option)

6. 6 (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.

7. 7 (2) High Grade Spherical Fresnel Lens TransmitterReceiver Lens

8. 8 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.

9. 9 Focused beam diameter

10. 10 (b) Minimize unnecessary beam reflection NRTM Lens

11. 11 Normal Lens

12. 12 (c) Minimizes receiving unnecessary external light.

13. 13 ② Cut the unnecessary external lights

14. 14 ③ Integrated optical scope Scope TransmitterReceiver (a) Matches beam and scope direction The beam and scope direction is same and fixed as the scope is integrated on the lens.

15. 15 (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

16. 16 (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 imageUnfocused image

17. 17 (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.

18. 18

19. 19 (a) Scope for Rough Alignment (4) Easy Optical Alignment

20. 20 (b) LED Level Indicator for Fine Alignment LED

21. 21 (c) Tester Level for Fine Alignment

22. 22 (5)EDC (Environmental Discrimination Circuit) EDC is good feature to maintain total system. The below factors drop the beam power and cause unwanted Alarms. *Contamination of the cover *Heavy fog, Snow, Rain, Dust and etc., In case of such a condition, EDC gives precaution of harsh environment.

23. 23 No alarm EDC output *Contamination of the cover *Heavy fog, Snow, Rain, Dust and etc.,

24. 24 (6)Selectable 4 frequencies (4 channel) 1ch to 4ch are selectable. Combination of these 4 channels allows to use NRTM for various applications.

25. 25 (6-1) Long distance protection

26. 26 (a) Distance between the upper and lower units are narrow. (b) Distance between the upper and lower units are wide. Flexibility of Installation Makes alarms No alarms

27. 27 (6-2) Perimeter protection

28. 28 (7) IP55 (Ingress Protection Rate) IP 5 5 : 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

29. 29 IP5 5 : 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

30. 30 (8) Adjustable Beam Interruption Time It is 50 mSec to 900 mSec. It is selectable according to the application.

31. 31 (9) 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.

32. 32 (10) 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.

33. 33 (11) Pole mount bracket This is used for the pole installation. Without this mount bracket, the chassis bends and it makes the installation difficult.

34. 34 Mount bracket Pole Chassis

35. 35 (12) 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.

36. 36 Heater

37. 37 3. Installation case (1) Factory

38. 38 (2) Warehouse

39. 39 (3) Home

40. 40

41. 41 4. Specifications

42. 42

43. Thank you ! Atsumi Electric Co.,Ltd.