The Ermenrich NetGeeks NU25 optical multimeter is a multifunctional device that can be used to measure optical power, find cable breaks, and determine other characteristics of a fiber optic network and its components.
The VFL (Visual Fault Locator) function allows you to assess cable damage using light signals. There are three types of such signals: constant glow, slow flashing, and fast flashing. Other network test results are displayed on a backlit color TFT screen, e.g., the connector crimping quality test and the frequency of the detected signal. The device connector is protected from dust and water by a removable plastic cap.
The device can operate on one of six main wavelengths: 850, 980, 1310, 1490, 1550, or 1625nm. The VFL function has a separate 650nm wavelength as well as detectable frequencies of 270Hz, 1kHz, and 2kHz. The device is equipped with optical connectors of FC/SC/ST standards as well as an RJ45 network connector. The Ermenrich NetGeeks NU25 Multimeter supports single-mode (SM) and multi-mode (MM) cables.
Key features:
- The device is powered by a built-in non-removable 3.7V lithium battery
- To save battery power, the auto-off function activates after 30 minutes of inactivity
- There is six hours of battery life on a full charge
- Optical power measurement in the range of −60 to +8dBm
- Supports FC/SC/ST optical connectors and an RJ45 network connector
- Three additional service functions: frequency detector, cable crystal head QC, VFL
The kit includes:
- Transmitter
- Remote module
- USB Type-C cable
- Pouch
- User manual and warranty card
| Brand | Ermenrich |
| Warranty | 5 years |
| EAN | 5905555023144 |
| Package size (LxWxH) | 21x12x5 cm |
| Shipping Weight | 0.29 kg |
| Type | optical multimeter |
| Optical power meter wavelength, nm | 850/ 980/ 1310/ 1490/ 1550/ 1625 |
| Fiber connector type | FC, SC, ST |
| Connector type | RJ45 |
| Maintained cable type | single-mode (SM), multimode (MM) |
| Units of measurement | W, dB, dBm |
| Power detection range, dBm | -60 — 8 |
| Option to set the reference level | yes |
| Visual fault locator (VFL) | yes |
| Visual fault locator (VFL) wavelength, nm | 650 |
| Continuity test | yes |
| Сable crystal head QC | yes |
| Input signal frequency detection | yes |
| Detected input signal frequency, Hz | 270/1000/2000 |
| Display | color TFT |
| Display backlight | yes |
| Power supply | 3.7V, 700mAh, built-in battery |
| Low battery status indicator | yes |
| Auto power off | yes, after 30 minutes of inactivity |
| Operating temperature range, °C | -10 — 60 |
| Operating humidity range, % | 20 — 70 |
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