Infrared Loop Scanner
Description
Infrared Loop Scanner measures the position of a hot product (steel, copper, brass, alloys, etc.) within its field of view and provides an output which is proportional to the angular position of the product within that field.
It is a scanning measuring sensor, sensitive to infrared radiation emitted by hot products with temperature as low as 250 °C (480 °F).
Main features:
High sensitivity: 400 °C / 750 °F or 250 °C / 480 °F.
Infrared spectrum: 1 to 3 µm.
Digitally controlled with self diagnostic functions.
No optical adjustment.
Easy commissioning.
Optoelectronic circuit enclosed in a heavy duty housing (IP66), designed to work in the harsh environment of the steel industry.
Air purging and water cooling.
Connector and cable with metallic protective braid.
Technical Characteristics:
| Model | TS2·16 | TS2·36 | TS2·56 |
| Scanning angle | 10° | 30° | 50° |
| Response time | 2 ms | 2 ms | 4 ms |
| Horizontal angle | Adjustable max : 3° | ||
| Spectrum sensitivity | 1 to 3 µm with maximum sensitivity at 2.2 µm | ||
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Temperature range |
> 400 °C (750 °F) for normal sensitivity model TS2··6
> 250 °C (480 °F) for high sensitivity model TS2··6H |
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NOTE: When the temperature of the product is expected to always exceed 400 °C (750 °F) it is not advisable to use the high sensitivity model, as it might detect scale or reflections. For other materials such as copper, brass, alloys, etc., the temperature range is dependant on the product infrared emissivity. Consult for these products.
Characteristics：
| Model | TS20·6 | TS22·6 | |
| Analogue output | 0 to 10 V
(10 mA max) |
4-20 mA
(load 500 W max) |
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| Video output | 10 V max to observe the measuring cell on an oscilloscope | ||
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Product presence – Relay output |
Single pole changeover
Switching capacity : 550VA – 250 V – 5 A max Closing time : 7.5 ms; Opening time : 3 ms |
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| Product presence –Static output | For indicating lamp : 24VDC – 2 W max | ||
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Alarm output |
0/24 V dc on transistor collector with a 1.1 kΩ internal load.
– 0 V : when the diagnostic system detects a defect in the power supply, internal temperature, or scanning motor speed. – 24 V: when none of these defects occurs. |
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Control output |
0/24 V dc on transistor collector with a 1.1 kΩ internal load
– 0 V : when the product detection begins to become difficult due to an accumulation of dirt on the viewing glass window (signal on the measuring cell, near to the sensitivity threshold). – 24 V : when the viewing window glass is clean. |
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Operating voltage |
220 V (-10%) to 240 V (+10%) – 50 or 60 Hz or
110 V (-10%) to 120 V (+10%) – 50 or 60 Hz or 24 V (±10% ) – 50 or 60 Hz |
24 V DC (±10%) |
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| Power consumption | 30 VA | < 500 mA | |
| Connection – Cable | Connector fitted with silicone cable with protective steel braid Standard length of 2 m (other length: 3, 5 or 8 m) | ||
| Protecting rating | IP 66 (cast aluminium case) | ||
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Operating ambient temperature |
-20 °C to 60 °C (0 °F to 140 °F) without water-cooling.
Over 60 °C ( 140 °F), the sensor must be cooled with industrial quality water at about 25 °C (77 °F), 1-2 bar and 1-2 l/min |
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