Telecom Tools: The Extech Model 380260 Megohmeter

A megohmeter is a telecom tool that’s used for monitoring the elevated levels of electrical sources and substances. It too is another telecom tool that serves a vital purpose in whatever signal tracking and testing you are doing. Its use with electrical sources are vital too since telecom tools absolutely have to work side by side with electrical power.

There are a few megohmeters out there but one we decided to focus on was the Extech Model 380260. Below is some information on this telecom tool which includes, safety guidelines, maintenance and general information. Enjoy!

First of all before using this telecom tool here are the safety guidelines so you don’t put yourself at any unnecessary risks when using.

This megohmeter has a variety of applications that it is used for. Small appliance and power tools can even benefit from its versatile functions. The device can also test AC and DC motors. The product manual explains everything and its step by step process will help you through any difficulties in use that you might have.

Arguably its most important function for all us telecom tool buffs here is the megohmeter’s ability to test cables. Here’s how that process works first we naturally disconnect the cables from their source. Make sure the opposite end is disconnected in the instance that it needs to be. The next thing in a cable test is to check each conductor. From there ensure that the insulation between conductors. From there you can go about and use your telecom tool for all of its intended purposes. But before doing any of these take some time read these safety guidelines and general specs so you know what to do.

Safety Guidelines

All test leads should be functioning properly. Any minor damages are a no go for use.

Do not touch any circuits when performing any tests. Bus bars and bare conductors must

not be touched during testing or else electric shock can occur.

Make sure to have any tested circuits’ energy removed. Have them isolated before putting together any other connection unless you are taking a volt count.

When voltages are nearing 60VDC or 30VACrms proceed with caution.

Discharge all capacitors after performing insulation tests.

When having the item repaired only use replacement items that are within guidelines.

Also be sure to always refer to your item’s manual before any use of your telecom tool.

General specifications

• Display LCD with dual display
• It has 2.5 readings per second sampling rate
• Continuity beeper: <40ω
• Short circuit current: <200ma
• Open circuit voltage: 4.5V
• Over range indicator ‘1’ displayed
• It has an automatic zero adjust
• Environmental Installation category II, Pollution Degree 2, Altitude up to 2000 meters, Indoor use only
• Operates in an environment of 32 to 104^oF (0 to 40^oC)
• Storage guidelines are 14 to 140^oF (-10 to 460^oC)
• Dimensions are 7.8 x 3.6 x 1.9” (200 x 92 x 50mm)
• It weighs in at 24.6oz (700g)
• Power source: Requires Six AA batteries (There’s an indicator that will let you know when to change batteries.)

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