Hot Metal Detector
- Sensitivity adjustment unnecessary: Auto sensing
- One sensor covers a wide range of temperatures from low to high
FD-A300P is a series of optical fiber type hot metal detection photo sensor (HMD) that directly detect infrared energy emitted from heated material (steel products, etc.)
Equipped with a controller that employs an 8-bit microcomputer, this intelligent hot metal detection sensor integrates various functions.
- Sensitivity adjustment unnecessary: Auto sensing mode
Auto sensing mode automatically adjusts a threshold level based on the received light intensity at detection of heated material and manual mode that allows manual setting of the threshold are available. - One sensor for a wide range of temperatures
Two different ranges for low and high temperatures can be switched with external signal and support low and high temperatures. - Numerical indication of received light intensity convenient for threshold setting
Received light intensity at detection of heated material is represented in value between 0.1 and 10.0 for arbitrary setting of output operation level.
Broad dynamic range of amplifier allows numerical expression of wide range of temperatures of heated materials in analog quantity, which, unlike the conventional HMD sensitivity adjustment, facilitates setting of threshold in concrete figures. - Recall function: Received light intensity detected in the past viewable
Maximum received light intensity of heated material detected is stored to allow viewing during nondetection.
Eight most recent maximum received light intensities of heated materials are stored to allow viewing of previous received light intensities in figures by selecting a mode.
Guidelines are given below for the temperature of a detection object larger than the detecting field of view with optical head (OHA) and fiber optic cable (FG2) used for detection.
| Low temperature range | 350 - 800C |
|---|---|
| High temperature range | 490 - 1300C |
| Low temperature range | High temperature range | |||||
|---|---|---|---|---|---|---|
| Fiber length | Optical head | Optical head | ||||
| Standard view model OHA |
Narrow view model OHAN/OHAN10 |
Wide view model OHW1/OHW2 |
Standard view model OHA |
Narrow view model OHAN/OHAN10 |
Wide view model OHW1/OHW2 |
|
| 2m | 350C | 480C | 415C | 490C | 685C | 590C |
| 3m | 365C | 500C | 430C | 510C | 705C | 610C |
| 4m | 375C | 515C | 445C | 525C | 720C | 625C |
| 5m | 385C | 530C | 450C | 540C | 735C | 635C |
| 7m | 400C | 550C | 475C | 560C | 760C | 660C |
| 10m | 445C | 600C | 520C | 610C | 850C | 725C |
| 15m | 480C | 640C | 555C | 655C | 920C | 775C |
| 20m | 500C | 665C | 580C | 680C | 960C | 800C |
| 30m | 530C | 705C | 610C | 720C | 1030C | 850C |
Releted Products
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Light Curtain Sensors
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Cold Metal Detection
- Long distance: 100m
- Secure detection in harsh environment, with high power
- Provided with three-point received light intensity indicator
- Helpful for adjustment of optical axis
- Embedded with AC/DC power circuit
- Either 48-240VAC or 24-240VDC can be used as power supply
- Covering AC/DC (NPN/PNP) control, with photo MOS (1a)