MEGGER KMK8 BRIDGE TDR

The MEGGER KMK8 Bridge TDR is a comprehensive and versatile instrument designed for the telecommunication industry, facilitating the evaluation and fault location on telecommunication cables. This handheld device integrates multiple technologies, making it highly effective for both qualitative assessment and precise fault localization in varying cable conditions.

Features of the KMK8:

• Active Bridge: This feature enables high precision resistance (R) and capacitance (C) measurements, along with DC and AC fault location. It is particularly effective in environments with low interference voltages, allowing for more accurate fault detection.
• Passive Wheatstone Bridge: For scenarios where interference voltages are high, the passive Wheatstone bridge configuration comes into play. This setup is designed to handle and accurately locate faults in such challenging environments.
• Graaf Fault Locator: The KMK8 uses the Graaf method in conjunction with an active slave at the far end for precise fault location, especially effective on cables that are thoroughly water-soaked and exhibit high and intermittent interference voltages.
• Time Domain Reflectometer (TDR): The TDR component is crucial for identifying low impedance faults and cross-talk issues between pairs, enhancing the ability to pinpoint exact locations of faults.

MEGGER KMK8 BRIDGE TDR specifications:

• Power supply: Internal rechargeable NiMH battery pack
• Operating time: approx. 8 hours (without backlight)
• Charging (without taking From 100 … 240 V mains with the battery pack out): mains adapter; from 12 V car battery with car adapter
• Ladezeit max: less than 3 hours (fast charging mode)
• Display: 320 x 240 dot graphic LCD

Connectors

• Connector for mains adapter: 2.1 / 5.5mm coax
• L1 and L2 line connectors: 4 mm banana sockets
• Ground connector: 4 mm banana socket
• USB A: USB 1.1 host port for USB stick
• USB B: USB 1.1 device port to connect PC

Over Voltage Protection  (Ri >5 kΩ)

• Between a and b or ground: 500 V DC, 350 V AC
• Longitudinal voltage: 60 V AC

Ambient temperature ranges

• Reference : 23 ± 5 °C Rel. humidity 45 % … 75 %*
• Normal operation : 0 … + 40 °C Rel. humidity30 % … 75 % *(< 25 g/m3)
• Limits of operation : – 5 … + 45 °C Rel. humidity5 % … 95 % *(< 29 g/m3)
• Storage and transport : – 40 … + 70 °C Rel. humidity95 % at + 45 °C *(< 35 g/m3)
• Memory for test results: 50
• Memory for cable parameter: 50
• Dimensions : 224 x 160 x 75 mm
• Weight : (incl. battery pack) ca. 1.8 kg