1. Product Overview
The KomShine KPM-35 Optical Power Meter and KLS-35 Optical Fiber Light Source are essential tools for the installation, maintenance, and troubleshooting of fiber optic networks. This combined kit provides accurate optical power measurements and stable light source output for various fiber optic applications.
The KPM-35 power meter features a wide measurement range and supports 7 wavelengths (850, 980, 1300, 1310, 1490, 1550, 1625nm) with a 2.5mm universal SC connector. The KLS-35 light source provides stable output at 1310nm and 1550nm for singlemode applications, also featuring an FC/SC connector. Both units are designed for durability with rubber armor protection and offer long battery life.
Figure 1: KomShine KPM-35 Optical Power Meter and KLS-35 Optical Fiber Light Source kit.
2. Key Features
- KPM-35 Power Meter:
- 7 Wavelengths: 850, 980, 1300, 1310, 1490, 1550, 1625nm.
- Measurement Range: -70 to +10dBm.
- 2.5mm Universal SC Connector.
- High precision with ±0.2dB accuracy.
- Self-calibration function.
- KLS-35 Light Source:
- Singlemode Wavelengths: 1310nm and 1550nm.
- Typical Output Power: -5dB.
- FC/SC Connector.
- Continuous Wave (CW) and Modulated Output (270Hz, 1kHz, 2kHz).
- General:
- Durable rubber armor protection.
- Ergonomic design for one-hand operation.
- LED backlight for dark environments.
- Long battery life (up to 55 hours for power meter, 200 hours for light source).
Figure 2: Key features of the KPM-35 Optical Power Meter.
Figure 3: Key features of the KLS-35 Optical Fiber Light Source.
3. Setup and Installation
3.1 Battery Installation
Both the KPM-35 and KLS-35 units are battery-powered. Locate the battery compartment on the back of each device. Insert the required batteries, ensuring correct polarity. Close the battery compartment securely.
3.2 Connecting Fiber Optic Cables
- Clean Connectors: Before connecting any fiber optic cable, ensure that the fiber end-faces and the device's optical ports are clean. Use appropriate fiber optic cleaning tools.
- KPM-35 Power Meter: Connect the fiber optic cable from the source you wish to measure to the 2.5mm universal SC connector port on the top of the KPM-35.
- KLS-35 Light Source: Connect the fiber optic cable to the FC/SC connector port on the top of the KLS-35. This cable will then be connected to the system or device under test.
Figure 4: KLS-35 Light Source with a fiber optic cable connected.
4. Operating Instructions
4.1 KPM-35 Optical Power Meter Operation
- Power On: Press and hold the power button (labeled with a power symbol) to turn on the KPM-35.
- Select Wavelength: Press the wavelength button (labeled with λ) to cycle through the available wavelengths (850, 980, 1300, 1310, 1490, 1550, 1625nm) until the desired wavelength is displayed.
- Measure Power: Once the fiber is connected and the correct wavelength is selected, the optical power will be displayed on the screen in dBm.
- Set Reference (REF): To measure relative loss (dB), press the REF/dB button. Connect the fiber directly from the light source to the power meter, set the reference power, then connect the fiber through the system under test to measure loss.
- Backlight: Press the light bulb button (labeled with a light bulb symbol) to toggle the display backlight.
- Power Off: Press and hold the power button (labeled with a power symbol) to turn off the KPM-35.
Figure 5: KPM-35 Power Meter showing the 7 available wavelengths for measurement.
4.2 KLS-35 Optical Fiber Light Source Operation
- Power On: Press and hold the power button (labeled with a power symbol) to turn on the KLS-35.
- Select Wavelength: Press the wavelength button (labeled with λ) to switch between 1310nm and 1550nm.
- Select Output Mode: Press the CW/MOD button to cycle through Continuous Wave (CW), 270Hz, 1kHz, and 2kHz modulation modes.
- Backlight: Press the light bulb button (labeled with a light bulb symbol) to toggle the display backlight.
- Power Off: Press and hold the power button (labeled with a power symbol) to turn off the KLS-35.
Figure 6: KLS-35 Light Source showing available wavelength combinations and output modes.
5. Maintenance
5.1 Cleaning Optical Connectors
Regular cleaning of optical connectors is crucial for accurate measurements and to prevent damage. Use only approved fiber optic cleaning tools and methods. Never touch the fiber end-face with bare hands.
5.2 Battery Replacement
When the battery indicator shows low power, replace the batteries promptly to ensure continuous operation and prevent data loss. Refer to section 3.1 for battery installation instructions.
5.3 Storage
Store the devices in a clean, dry environment away from direct sunlight and extreme temperatures. Always use the protective caps for the optical ports when not in use to prevent dust and damage.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low or dead batteries; incorrect battery installation. | Replace batteries; ensure correct polarity. |
| Inaccurate power readings (KPM-35). | Dirty optical connector; incorrect wavelength selected; damaged fiber. | Clean connectors; verify wavelength setting; inspect fiber for damage. |
| No light output (KLS-35). | Low or dead batteries; dirty optical connector; damaged fiber. | Replace batteries; clean connectors; inspect fiber for damage. |
| Display backlight not working. | Backlight function is off. | Press the backlight button to activate. |
7. Specifications
7.1 KPM-35 Optical Power Meter
- Wavelengths: 850, 980, 1300, 1310, 1490, 1550, 1625nm
- Measurement Range: -70 to +10dBm
- Accuracy: ±0.2dB
- Connector: 2.5mm Universal SC
- Power Source: Battery Powered
- Battery Life: Approximately 55 hours
- Dimensions: 6.3 x 3.5 x 3.4 inches (160 x 85 x 86 mm)
- Weight: 7.76 ounces (220 grams)
7.2 KLS-35 Optical Fiber Light Source
- Wavelengths: 1310nm, 1550nm (Singlemode)
- Typical Output Power: -5dB
- Output Modes: CW, 270Hz, 1kHz, 2kHz
- Connector: FC, SC
- Power Source: Battery Powered
- Battery Life: Approximately 200 hours
- Dimensions: 6.3 x 3.5 x 3.4 inches (160 x 85 x 86 mm)
- Weight: 7.76 ounces (220 grams)
Figure 7: Summary of KPM-35 Power Meter and KLS-35 Light Source specifications.
8. Warranty and Support
KomShine is committed to providing high-quality products and customer satisfaction. In the event of a product defect or issue, please contact KomShine customer support. If you receive a faulty unit, please provide pictures or videos through the Amazon chatting window, and a replacement will be arranged promptly.
For further assistance or inquiries, please refer to the official KomShine website or contact their customer service department.
9. Important Safety Information
- Never look directly into the optical output port of the light source or any connected fiber when the light source is active. Invisible laser radiation can cause severe eye damage.
- Always use protective caps on optical ports when not in use.
- Handle fiber optic cables and connectors with care to avoid damage.
- Do not attempt to disassemble or repair the devices yourself. Refer to qualified personnel for service.
- Dispose of batteries according to local regulations.
