Heat-Resistant Fiber-Type Cold Metal Detector
| Item | Spec. |
|---|---|
| Product type | Heat-resistant fiber-type cold metal detector |
| Detection method | Through-beam |
| Transmitter | FT-L101 |
| Receiver | FT-R101 |
| Power supply | 24–240 VAC/DC ±10%, 50/60 Hz |
| Power consumption | Transmitter: 2 W max.; Receiver: 2 W max. |
| Light source | Infrared LED |
| Operation mode | Light-ON / Dark-ON, switch selectable |
| Response time | 20 ms max. |
| Fiber allowable bending radius | 50 mm |
| Transmitter indicators | Green power indicator, red monitor indicator |
| Receiver indicators | Red operation indicator, three-level received-light indicators |
| Optical head / fiber ambient temperature | −25 to +200°C |
| Amplifier ambient temperature | −25 to +55°C, non-freezing |
| Ambient humidity | 35–85% RH, non-condensing |
| Ambient light | Incandescent lamp: 10,000 lx max. |
| Protection rating | IP66 |
| Case material | Zinc die-cast |
| Transmitter weight | Approx. 720 g |
| Receiver weight | Approx. 720 g |
Specification notes
Q1: What is the FT101 Series?
A: The FT101 Series is a through-beam fiber-type cold metal detector consisting of an FT-L101 transmitter and FT-R101 receiver for presence and passage detection in steel and heavy-industry environments.
Q2: Which models make up the FT101 Series?
A: The main sensing units are the FT-L101 transmitter and FT-R101 receiver, used with GT Series heat-resistant fibers and optional optical accessories.
Q3: What is the detecting distance of the FT101 Series?
A: Detecting distance depends on fiber length and optical accessories. Fiber-only configurations provide approximately 0.30–0.55 m, while an OHA optical head can extend the range up to 45 m.
Q4: Can the FT101 fiber operate in high-temperature environments?
A: Yes. The optical head and GT Series fibers can operate at ambient temperatures up to +200°C.
Q5: What output does the FT101 Series provide?
A: The FT-R101 receiver provides a 1c relay output rated for resistive loads up to 2 A at 250 VAC. The FT-L101 transmitter provides an emission monitor relay with the same rating.
Q6: Can the FT101 switch between Light-ON and Dark-ON?
A: Yes. The FT-R101 receiver supports switch-selectable Light-ON and Dark-ON operation.
Q7: What is the emitter monitoring function used for?
A: The FT-L101 monitoring circuit provides a relay signal if light emission stops because of a fault or other condition.
Q8: How is optical alignment checked?
A: The FT-R101 receiver has a three-level received-light indicator that helps verify optical alignment and received-light margin.
Q9: What power supply does the FT101 Series use?
A: The current specification supports a wide-range 24–240 VAC/DC power supply.
Q10: What applications is the FT101 Series suitable for?
A: It is suitable for presence, passage, and long-distance detection of cold steel and other materials where the optical sensing section must operate close to high-temperature equipment.