CHM600E Line Height Meter, 10-75 feet

Part # : 659600E

• Dramatically reduces measuring time
• Inherently safe
• Designed for ease-of-use
• Hand-held portability
• Calibration and maintenance free operation
• No physical connection to cables or wires
• Measures the height of up to six overhead cables

The Megger CHM600E Cable Height Meter utilizes ultrasonic sound to determine the height of up to six overhead cables and wires. The instrument is designed to address specific measuring requirements on cables up to 75 feet. The CHM600E is designed primarily for power cable applications.

The Megger CHM600E Cable Height Meter emits short bursts of sound which originate from the cone shaped transmitter. The microprocessor in the instruments calculates the elapsed time for the bursts of sound to be reflected from the cable back to the instruments. The result can be displayed in either feet and inches or meters. However, before the final measurement can be displayed, the air temperature must be measured because the speed of sound varies at approximately 0.2 percent per degree Celsius.

A temperature sensor, mounted at the front of the instruments, senses the actual air temperature. This information is sent to the microprocessor and incorporated into the algorithm. The distance is then displayed in meters or feet and inches depending on which was selected.

Applications include measuring cable heights of:

• Telephone lines
• Distribution lines
• Transmission lines
• Cable television (installers and contractors)
• Street lights
• Sag (lowest point to ground)
• Separation between up to six cables

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