Basic Information
※Actual products may differ from the photos.
It can be used under environments of -60 to +350 ℃ -76 to +662 ℉.
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Basic Information
Order guide
Option
Dimensions
Sensing characteristics
Partly to Be Discontinued
Last time buy (JST)
September 30, 2027
※Actual products may differ from the photos.
It can be used under environments of -60 to +350 ℃ -76 to +662 ℉.
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For details of lens for fiber, refer to "Lens for thru-beam type fiber".

>>Go to "Lens for thru-beam type fiber"
For details of fiber options, refer to "Fiber Options".
>>Go to "Fiber Options"
| Type | Heat- resistant temp. | Shape of fiber head (mm) | Model No. | Bending radius (mm) | Fiber cable length | Free-cut | Beam axis dia. (mm) | Ambient temp. |
|---|---|---|---|---|---|---|---|---|
| Heat- resistant | 350℃ | Lens mountable (FX-LE1/LE2/SV1)
| FT-H35-M2 | R25 | 2m | - | ø1.2 | -60 to +350℃ |
| Sleeve 60mm
| FT-H35-M2S6 | Fiber R25 Sleeve R10 | - | |||||
| 200℃ | Allows flexible wiring Lens mountable (FX-LE1/LE2/SV1)
| FT-H20W-M1 | R10 | 1m | - | ø0.8 | -60 to +200℃ | |
| Lens mountable (FX-LE1/LE2/SV1)
| FT-H20-M1 | R25 | - | ø1.2 | ||||
| 130℃ | Lens mountable (FX-LE2 only)
| FT-H13-FM2 | 2m | Available | ø1.5 | -60 to +130℃ | ||
| Heat- resistant (joint) | 200℃ | Lens mountable (FX-LE1/LE2/SV1)
| FT-H20-J20-S (Note 3) | Heatresistant side R18 (Note 2) | 200mm (Note 1) | Available | ø1.2 | -60 to +200℃ |
| FT-H20-J30-S (Note 3) | 300mm (Note 1) | Available | ||||||
| FT-H20-J50-S (Note 3) | 500mm (Note 1) | Available | ||||||
| Side-view
| FT-H20-VJ50-S (Note 3) | Available | ||||||
| FT-H20-VJ80-S (Note 3) | 800mm (Note 1) | Available |
Refer to "Digital Fiber Sensor FX-500 Ver.2 List of fibers" and "Digital Fiber Sensor FX-100 List of fibers" for the sensing range.
(Note 1):Fiber length (fixed-length) for heat-resistant fiber side. Fiber length for ordinary temperature side is 2 m 6.562 ft (free-cut).
(Note 2):Bending durable fiber R4 mm R0.157 in or more for ordinary temperature side.
(Note 3):Heat-resistant joint fibers and ordinary-temperature fibers (FT-42) are sold as a set.

• Heat-resistant side fiber [one pair set]
FT-H20-J20, FT-H20-J30, FT-H20-J50, FT-H20-VJ50, FT-H20-VJ80
• Ordinary temperature side fiber [one pair set]
FT-42
| Type | Heat- resistant temp. | Shape of fiber head (mm) | Model No. | Bending radius (mm) | Fiber cable length | Free-cut | Ambient temp. | |
|---|---|---|---|---|---|---|---|---|
| Heat- resistant | Threaded | 350℃ | Coaxial
| FD-H35-M2 | R25 | 2m | - | -60 to +350℃ |
| Sleeve60mm
| FD-H35-M2S6 | Fiber R25 Sleeve R10 | - | |||||
| Sleeve90mm
| FD-H35-20S | 1m | - | |||||
| 200℃ | Coaxial
| FD-H20-M1 | R25 | - | -60 to +200℃ | |||
| Coaxial
| FD-H20-21 | - | ||||||
| 130℃ |
| FD-H13-FM2 | 2m | Available | -60 to +130℃ | |||
| Glass substrate detection convergent reflective | 300℃ |
W19×H27×D5 | FD-H30-L32 | 2m | - | -60 to +300℃ | ||
| 180℃ |
W19×H27×D5 | FD-H18-L31 | 2m | Available | -60 to +180℃ | |||
Refer to "Digital Fiber Sensor FX-500 Ver.2 List of fibers" and "Digital Fiber Sensor FX-100 List of fibers" for the sensing range.
For details of lens for fiber, refer to "Lens for thru-beam type fiber".

>>Go to "Lens for thru-beam type fiber"
For details of fiber options, refer to "Fiber Options".
>>Go to "Fiber Options"
Reflective type
Free-cut
<with FX-AT3>

Reflective type
Free-cut
<with FX-AT3>

Reflective type

Reflective type

Reflective type
<with FX-AT2>

Reflective type
<with FX-AT2>

Reflective type

Reflective type

Reflective type

Reflective type

Thru-beam type
Free-cut
<with FX-AT3>

Thru-beam type
Free-cut (*Note)
<with FX-AT3>
Heat-resistant side unit diagram (side view)

Ordinary temperature side fiber (FT-42) connection diagram (front view)

| Model No. | A | B |
|---|---|---|
| FT-H20-J20-S | 200 +2507.874 +0.9840 | 185 +3007.284 +1.1810 |
| FT-H20-J30-S | 300 +25011.811 +0.9840 | 285 +30011.221 +1.1810 |
| FT-H20-J50-S | 500 +25019.685 +0.9840 | 485 +30019.095 +1.1810 |
Note: Ordinary temperature side fiber (FT-42) only.
Thru-beam type

Thru-beam type
Free-cut (*Note)
<with FX-AT3>
Heat-resistant side unit diagram (side view)

Ordinary temperature side fiber (FT-42) connection diagram (front view)

| Model No. | A | B |
|---|---|---|
| FT-H20-VJ50-S | 500 +25019.685 +0.9840 | 485 +30019.095 +1.1810 |
| FT-H20-VJ80-S | 800 +50031.496 +1.9690 | 785 +55030.906 +2.1650 |
Note: Ordinary temperature side fiber (FT-42) only.
Thru-beam type
<with FX-AT2>

Thru-beam type

Thru-beam type

Sensing characteristic diagram can be downloaded at the following.
Please contact our office if not listed here.
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