• World’s highest signal detection sensitivity
  • ONU signal detecting function
  • Trigger lock / robust body design
  • 2.4″ colour touch screen with backlight
  • Adjustable settings – result retaining | buzzer volume | backlight brightness | auto dimming | auto power off
Download specification sheet
The FID-30R includes an optical power meter and succeeds the FID-25R while the FID-31R, the updated standard model, replaces the FID-26R. The fibre identifiers, used for identifying the light power presence in optical fibres, include three detecting functions: TONE, TRAFFIC, and ONU.

Both models include a trigger operated clamp to macro-bend the fibre in order to leak light which is then detected by two photo sensors. The fibre identifiers can detect the presence of several kinds of light signal and indicate signal directions.

The trigger lock function ensures the fibre is clamped with constant pressure, while the 2.4″ colour LCD touch panel, equipped with a backlight function, allows the user to view the estimated optical power in the fibre and select the desired wavelength of 1310nm, 1490nm, or 1550nm. Identification of modulated tones at 270Hz, 1kHz and 2kHz is provided, along with continuous wave and ONU signals. Users are also able to select from three detection sensitivity modes; normal, fast and fine.

Other features of the battery operated FID30R/FID31R include robust body design, easy-to-use fibre clamp, status indicator and adjustable settings for result retaining, buzzer volume, backlight brightness, auto dimming and auto power off.

The fibre identifiers can be used for UV-coated fibre, 0.9mm diameter tight buffered fibre, fibre cord up to 3mm in diameter, and fibre ribbon with up to 12 fibres.

Specifications Sub-item Description
Model FID-30R: Optical fibre identifier with power meter function
FID-31R: Optical fibre identifier
Applicable fibres Fibre type Singlemode fibre
Kind of fibre 0.25mm coating, Ribbon fibre up to 12-fibre, or
Fibre cord : 1.1mm, 1.5mm, 1.7mm, 2.0mm, or 3.0mm
Wavelength range 900 to 1700nm
Detectable light signals Traffic signal (CW), Light signal with modulated tones at 270Hz, 1kHz or 2kHz
(square wave 50±10% duty cycle)
Operating / storage conditions -10 to +50℃, 0 to 95% RH / -20 to +60℃, 0 to 95% RH
Power supply 1.2 to 1.5V DC with two AA batteries
Battery Life Approximately 8 Hours by alkaline batteries at room temperature
Dimensions and weight 50(W) x 115(H) x 212(D) (mm), 230g including battery
Power meter
(FID-30R only)
Wavelength response 1310nm, 1490nm, 1550nm
Detectable kind of signal Traffic signal (CW), Light signal with modulated tones at 270Hz, 1kHz or 2kHz
(square wave 50±10% duty cycle)
Detector Sensitivity +10 to -60dBm at modulated tone
+10 to -40dBm at traffic signal & CW light
Accuracy Within +/-0.3dB at room temperature
Fibre application Detecting all signals at the same time individually & automatically Insertion loss (dB) Sensitivity (dBm)
Traffic CW 270Hz* 1kHz* 2kHz* Signal Direction 1310
Single fibre 0.25mm (R30) Y Y Y Y Y 0.2 1.0 2.5 -58 -67 -67
Single fibre 0.5mm (R15) Y Y Y Y 0.2 1.0 2.5 -44 -57 -57
Single fibre 0.5mm Y Y Y Y Y 0.2 1.0 2.5 -58 -67 -67
Single fibre 0.9mm Y Y Y Y Y 0.3 1.5 2.5 -28 -33 -38
Fibre ribbon up to 12 fibres Y Y Y Y Y 0.3 1.0 2.5 -44 -57 -57
Fibre cord 1.1 to 1.5mm Y Y Y Y Y 0.3 1.0 2.5 -43 -55 -55
Fibre cord 1.7 to 2.0mm Y Y Y Y Y 0.5 2.0 3.0 -22 -27 -27
Fibre cord 3.0mm Y Y Y Y Y 1.0 3.0 3.0 -20 -23 -23
Description Model No.
High precision single fibre cleaver CT-05 (for single fibre)
High precision fibre cleaver CT-30 (for single to 12 ribbon fibres)
Primary coat stripper PS-02
Nylon jacket stripper JS-01
Thermal jacket stripper HJS-02, HJS-03
Protection sleeve FP-03 / 03 (L=40) and FPS01 series
Description FID-30R FID-31R
Plunger PL-06 PL-06
Carrying case FID-CASE-02 FID-CASE-02
Instruction Manual English (IM-FID30R) English (IM-FID30R)
Quick reference guide QR-30R/31R-E QR-30R/31R-E
Connector head OCH-02-UC
(universal type)
Description Item Use for
Connector head OCH-02-SC FID-30R SC connector
OCH-02-FC FID-30R FC connector
OCH-02-ST FID-30R ST connector
OCH-02-LC FID-30R LC connector