FOTEC M FM310 Fiber Optic Power Meter

Fotec Optical Power Meters. Accuracy: ±5% (Watts), Resolution: Selectable 0.1 dB or 0.01 dB.

Model
Fotec FM310
Calibration
Available on request
Price
$75
Status
In stock
RFQ ref
FM310
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This unit

The FOTEC M FM310 Fiber Optic Power Meter is a handheld instrument for accurate optical power measurements in fiber optic systems. Built around a Germanium detector, it delivers ±5% (Watts) or ±0.1 dB accuracy across three calibrated wavelengths: 850 nm, 1300 nm, and 1550 nm. The meter is NIST-calibrated and serves installation, maintenance, and troubleshooting workflows with a compact form factor weighing 11 oz.


Technical Specifications



  • Detector: Germanium (Ge)

  • Calibrated Wavelengths: 850 nm, 1300 nm, 1550 nm

  • Measurement Units: dBm, dBu, dB, µW

  • Accuracy: ±5% (Watts), ±0.2 dB

  • Display Resolution: Selectable 0.1 dB or 0.01 dB; 0.001 dB with FOtest software

  • Display: 0.5-inch LCD showing range, calibration wavelength, and low battery indicator

  • Temperature Coefficient: 0.1% / °C

  • Operating Temperature: −10 to 50 °C

  • Storage Temperature: −30 to 60 °C

  • Dimensions: 6.1 × 3.7 × 1.3 inches (155 × 94 × 33 mm)

  • Weight: 11 oz (315 g) including battery


Key Features



  • Powered by 9V battery (NEDA-1604 equivalent) with 20-hour typical runtime; AC adapter input available

  • RS-232 interface via RJ-11 connector at 9600 baud for data acquisition and instrument control

  • Modular Fotec adapter system supporting over 60 connector types

  • Controls for power, wavelength calibration selection, and measurement range/dB reference setting


Typical Applications



  • Fiber optic network installation and commissioning

  • In-service maintenance and power monitoring

  • Optical link troubleshooting and loss characterization

  • Dual-wavelength testing with Fotec Smart Sources


Compatibility & Integration



  • Works with Fotec Smart Sources for automated dual-wavelength measurements

  • Compatible with Fotec P310 printer and FOtest software package (cable provided)

  • Integrates with PC-based measurement systems via RS-232 for logging and analysis

Specifications

ParameterValue
Voltage / Current Range9V battery (NEDA-1604) | Wavelength Range: 1300 nm, 1550 nm, 850 nm

Fotec FM310 — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Fotec FM310. Calibration covers detector responsivity at 850, 1310, 1490, 1550, and 1625 nm, absolute power accuracy, linearity across the full dynamic range, and reference power level. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

Common Fotec FM310 faults: detector contamination, damaged FC/PC input port, display failure. Common repairs include detector port cleaning or replacement, display repair, and battery or capacitor replacement in older HP/Agilent/Keysight units.

Fotec FM310 price

This Fotec FM310 is listed at $75. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Fotec FM310 calibration cost

NIST-traceable calibration for the Fotec FM310 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers detector responsivity at 850, 1310, 1490, 1550, and 1625 nm, absolute power accuracy, linearity across the full dynamic range, and reference power level. Turnaround is 1 to 3 business days after receipt. See full calibration details →

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