KPM KB2 Fiber-Optic Sheet Break Detector

T5 GROUP SOLUTION CENTERED KPM KB2 Fiber-Optic Sheet Break Detector

KPM KB2 Fiber-Optic Sheet Break Detector

Non-contact optical measurement

With hundreds of installations worldwide, the KPM KB2 FiberOptic Sheet Break Detector is recognized as the best sheet break detector on the market. The non-contact sensor is placed above or under the web to be monitored. KPM KB2 is suitable for dirt, steam and high-temperature installations or where space is limited. The air-purged sensor head stays clean while monitoring for sheet breaks in the harshest environments.

Easy to set up

KPM KB2’s large display and logical user interface allows easy setup of the break detection by selecting the measurements that give the highest signal difference. Break and maintenance alarms are wired to the PLC or DCS.

Fast break detection

The KPM KB2’s digital signal processing technology measures all signals at a thousand times per second. KPM KB2 is immune to ambient light changes by measuring the backlight intensity. The break detection delay is a minimum of 15 ms. With digital filtration, users can select how many measurement cycles are used for break alarm.

RGB and infrared light measurement

KPM KB2 has RGB or infrared light sources to perform superiorly on all paper and board grades and applications, regardless of color. The RGB color measurement can handle all sheet, wire and felt colors providing reliable break detection. In addition to open-draw applications, the breaks can be detected against felt, wire, or even against a cylinder.

Electronics located outside harsh environment

KPM KB2 is very reliable even in a 100 percent humidity environment. While the sensor head is exposed to high temperatures, the electronics unit is mounted outside the machine hood to convenient location using fiber optic cable.

Specifications

Ambient temperature

Sensor head and fiber optic cable: -10 to 180 ºC (15 ºF to 356 ºF)
Electronics unit: -10 to 60 ºC (15 ºF to 140 ºF)

Fiber optic cable

KB2/6: 6 m (20’), KB2/9: 9 m (30’) or KB2/12: 12m (40’)

Fiber optic cable conduit

Requires flexible airtight conduit 19 mm (3/4”) ID min, available as an option.

Conduit connection

19 mm (3/4 ”) BSP

Installation

Sensor distance from the web 5…30 cm (2…12”).

Led pulse frequency

1 kHz

Power supply

90 – 264 VAC, 50/60 Hz or 24 VDC

Power consumption

15 W

Enclosure class

IP 66 (Nema 4X)

Purge air connection

Dry instrument air, 6/4 mm (1/4”) connector, normal consumption 80l/min

Digital outputs

2 x Closing or opening contact max. 250 VAC, 2A; 220VDC, 2 A for Break signal and Maintenance alarm

Alarm output delay

Min. 15 ms from the actual break

Analog outputs

Optional 3 pcs 4 – 20 mA max 600 ohm, Isolated

Dimensions (L x H x D) and weight

Electronics Unit 323 x 237 x 70 mm (12,7 x 9,3 x 2,8”), 3 kg (6,6lbs)
Sensor head Ø 33 mm (11/4 ”) SS316, pipe 1500 mm (59”) long, 4 kg (9lbs)

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