Low-Temperature Fiber-Type Hot Metal Detection Sensor
| Item | Spec. |
|---|---|
| Product type | Low-temperature fiber-type hot metal detection sensor (HMD) |
| Detection method | Infrared energy radiated from hot material |
| Current models | FD300A FD300AH FD300AC |
| Power supply | 100–220VAC, +10%/-15%, 50/60Hz |
| Power consumption | 10W max. |
| Min. detectable target temperature, basic type | FG2 2 m: 360°C or higher |
| Lineup detecting distance | 0.50 m |
| Lineup detecting object diameter | Φ28 mm |
| Control method | ON-OFF control |
| Operation mode | Light-ON |
| Detection field of view | Standard: Φ50 mm/m; Wide: 200 × 40 mm/m or 400 × 30 mm/m |
| Valid lens diameter | Φ28 mm (OHA, OHAN, OHAN10) |
| Optical head / fiber ambient temperature | −25 to +200°C |
| Amplifier ambient temperature | −25 to +50°C, non-freezing |
| Ambient humidity | 35–85% RH, non-condensing |
| Fiber allowable bending radius | 50 mm |
| Protective structure | IP66 |
Specification notes
Q1: What is the FD300A Series?
A: The FD300A Series is a low-temperature fiber-type hot metal detection sensor that uses infrared energy radiated from heated steel and other hot materials for non-contact presence, passage, and position detection.
Q2: Which models are available in the FD300A Series?
A: The current lineup consists of FD300A, FD300AH, and FD300AC. Their primary differences are control output type and response time.
Q3: What is the minimum hot-metal temperature the FD300A Series can detect?
A: With the basic configuration and an FG2 2 m fiber, it supports target temperatures of 360°C or higher. The minimum detectable temperature increases with longer fiber lengths.
Q4: What is the detecting distance of the FD300A Series?
A: The lineup specification lists a detecting distance of 0.50 m with a detecting object diameter of Φ28 mm.
Q5: What are the differences among FD300A, FD300AH, and FD300AC?
A: FD300A uses a mini power relay output, FD300AH a signal relay output, and FD300AC a solid-state output. Their maximum response times are 15 ms, 5 ms, and 3 ms respectively.
Q6: Does the FD300A Series indicate received light intensity?
A: Yes. A 5-point level indicator shows received light intensity so that detection margin and operating condition can be checked.
Q7: What is the SAFETY self-check function used for?
A: It allows operation checking by an external signal and generates a SAFETY ALARM when lens contamination, optical-axis misalignment, disturbing light, or residual heat reduces detection margin.
Q8: What detection fields of view are available?
A: Standard and wide fields of view are available. The standard view is Φ50 mm/m, while wide-view options include 200 × 40 mm/m and 400 × 30 mm/m.
Q9: Does the FD300A optical head require cooling?
A: The optical head and fiber do not require additional cooling when the ambient temperature is +200°C or lower. The amplifier operates from -25 to +50°C.
Q10: What applications is the FD300A Series suitable for?
A: It is suitable for presence, passage, and position detection of hot materials in steel and heavy-industry equipment, particularly when lower-temperature heated steel must be detected by infrared radiation without contact.