FPM-50A - Mesure optique Jonard Tools - Free user manual and instructions
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| Product Type | Optical Power Meter |
| Brand | Jonard Tools |
| Model | FPM-50A |
| Dimensions | 145 x 76 x 38 mm (5.7 x 3.0 x 1.5 in) |
| Weight | 350 g (12.3 oz) including batteries |
| Power Supply | 3 x AA batteries (DC 4.5 V) |
| Battery Life | Approximately 80 hours of continuous use |
| Wavelength Range | 800 - 1700 nm |
| Measurement Range | -50 to +26 dBm |
| Accuracy | ±0.15 dB (at 25°C, 1310 nm) |
| Resolution | 0.01 dB |
| Connector Type | Interchangeable (FC, SC, LC, ST, etc.) |
| Display | Backlit LCD with bargraph |
| Data Storage | Up to 1000 readings |
| Main Functions | Power measurement, loss testing, relative offset, automatic shutdown |
| Maintenance | Clean optical connector with isopropyl alcohol and lint-free wipes; replace batteries when low |
| Safety | Do not look directly into the optical port; use protective caps when not in use |
| Spare Parts / Repairability | Replacement batteries, AC adapter (optional), interchangeable connector adapters; factory service recommended for repairs |
| General Information | Designed for use in fiber optic networks; compatible with single-mode and multimode fibers; CE and RoHS compliant |
Frequently Asked Questions - FPM-50A Jonard Tools
How do I turn on the FPM-50A?
Press and hold the power button for about 2 seconds until the display lights up.
What type of batteries does the FPM-50A use?
It uses three AA alkaline batteries. You can also use rechargeable NiMH batteries.
How do I change the battery?
Remove the battery cover on the back, insert three AA batteries with correct polarity, and replace the cover.
How do I select the wavelength?
Press the λ button repeatedly to cycle through preset wavelengths (e.g., 850, 1300, 1310, 1490, 1550 nm).
What does the 'dBm' reading mean?
dBm is the power level in decibels relative to 1 milliwatt. It indicates optical power.
How do I set a reference offset?
Connect the reference source, press the REF button to store the current value as zero. The display will show relative measurements.
Can I use the FPM-50A with SC connectors?
Yes, the FPM-50A comes with interchangeable adapters. Use the SC adapter that is included or purchased separately.
How do I clean the optical connector?
Use a lint-free cleaning wipe with isopropyl alcohol to gently clean the connector end face. Avoid touching it.
What is the auto-shutdown feature?
The meter automatically turns off after 10 minutes of inactivity to save battery. Press any button to wake it.
Where can I download the full manual?
The full user manual can be downloaded from the Jonard Tools website or from notice-facile.com.
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