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AST FR3000

Contactless measurements are important not be possible to touch the thermocouple metal during the lamination process, which is continuously moving at a high speed.

Moreover, even it is possible to stop the rolling process for the manual measurement of the plate, this could not be done during the final steps of rolling, due to the specification process. Even when it is possible to stop the plate, there is a delay in the process and reduced line productivity.
For example, in order to monitor the temperature of the plate at the beginning of the process, the plant must be stopped and the thermocouple positioned mechanically. You will be required at least 10 seconds for the measurement. This results in a delay of at least 20-25 seconds. However, the temperature should be measured and the ideal choice for this application is the infrared non-contact thermometer.

Infrared sensors often have been tested but with limited success aluminum because of low and variable emissivity. The accurate sensing, Israel has successfully developed an infrared temperature measuring system which uses multiple wavelengths and complex algorithms to accurately measure the temperature in the extrusion and lamination of aluminum alloys. The AST pyrometer has the option of storing different sizes in different groups in the processor memory, it is possible to switch between the groups by a signal from an external PLC.


COOLING TEMPERATURE

It allows the absolute value of the temperature and along the strip temperature distribution is recorded. This temperature recorded can be used to: modify the next slab configuration based on the previous step and, more importantly, to adjust the winding speed and cooling. Thus, we obtain the right conditions to set metallurgical properties. These metallurgical properties can be achieved by means of expensive special aging processes in an oven or by adjusting the winding speed and rate to produce the correct structure followed by cooling natural aging.



FR 3000- special pyrometer low temperature can measure the temperature both in position (2) and in position (1).
In position (1), you can get more technical information about the process. At this point, the temperature distribution is made along the strip center line, so that the measurement can be achieved from the first moment when the strip enters the winder.
However, due to the very bright and very low emissivity surface, to prevent the external influence of natural or artificial lighting, the temperature must be measured on the conditions of deep shade. The energy reflected light can be even higher than the energy emitted by the low target temperature.
In position (2) due to a higher surface emissivity and appropriate shade, the temperature can be measured from 100 ° C or more.



ADVANTAGES TO USE FR3000


- You can improve the productivity of the machine;
- It is possible to control the temperature of the aluminum foil in order to give mechanical strength. Without precise temperature control, while producing very fast, the user can increase the aluminum temperature and then not have the required mechanical strength;
- Controlling the temperature at the exit of the machine with the pyrometer gives the user the temperature increase of production speed allowable limit;
- Parameter pyrometer adjustment process along the first production of coils allows us to have repeatability for the same production batches (thickness and alloys).

DADOS OBTIDOS A PARTIR DO SITE



DATA

TEMPO

TEMPERATURA

EMISSIVIDADE

TEMPO P/ BRILHO 1

TEMPO P/ BRILHO 2

DX

DY

9/19/2011

15:43:30

0

0

1.15

0.023

9/19/2011

15:44:42

164

0.49

144.4

140.7

1.15

0.023

9/19/2011

15:44:44

165

0.49

145.4

141.8

1.15

0.023

9/19/2011

15:44:46

164

0.49

145.2

141.6

1.15

0.023

9/19/2011

15:44:48

164

0.49

145.

141.3

1.15

0.023

9/19/2011

15:44:50

164

0.49

145.3

141.7

1.15

0.023

9/19/2011

15:44:52

164

0.5

145.4

141.8

1.15

0.023

9/19/2011

15:44:54

164

0.49

145.2

141.5

1.15

0.023

9/19/2011

15:44:56

165

0.49

144.3

141.5

1.15

0.023

9/19/2011

15:44:58

165

0.47

144.8

140.9

1.15

0.023

9/19/2011

15:45:00

166

0.46

145.8

140.8

1.15

0.023

9/19/2011

15:45:02

166

0.47

145.5

141.6

1.15

0.023

9/19/2011

15:45:04

166

0.48

146

142.2

1.15

0.023

9/19/2011

15:45:06

0

0

1.15

0.023




RESOURCES
- High precision in real conditions;
- Capable of measuring targets with variable emissivity;
- Temperature range: 100-600 ° C / 212-1048 ° F;
- Rugged design;
- A full range of accessories;
- Wide range of built-in functions;
- Laser source: Class II.


USE
- Forging;
- Continuous Casting;
- Laminating.


PERFORMANCE
- Min Time (emissivity = 1.0, "blackbody" black body?) ... 100 ° C
- Response time: 0.1-10 sec (Default: 05 sec)


PRECISION
- Below 300 ° C = ± 0.3% of measured value;
- = 300-200 ° C ± (0.3% ± 1 ° C);
- = 200-150 ° C ± (0.7% ± 1 ° C);
- = 150-100 ° C ± (1.0% + 2 ° C).


ELECTRICAL SPECIFICATIONS
- Power supply: 24V AC, 50/60 Hz from 0.25 to 0.15 A;
- Optional outputs: 4-20 mA, 0-20 mA, 0-10 V, RS-232, RS-422, RS485, Alarms.


OPTIONAL
- Display P110 monochrome single-channel;
- Scanning System PS3000.


CONDITIONS ENVIRONMENTS
- Operating Temperature: 0 ° C to + 50 ° C;
- Storage temperature: -20 ° C to + 70 ° C;
- Humidity: unlimited for the sensor head.


PERSPECTIVE
- Spot diameter: 1:50 (20 mm from a distance of 1 meter);
- Various options available upon request.

  • Manuals