• Rugged and reliable
• Input range: 15~65 Hz Accuracy ± 1 digit
• Din rail mounting 3-module size, IP40 (front)
• Simple set-up and operation
• Storage and viewing of HIGH and LOW measure values
• Programmable relay output
• LED indication for protection tripping
• Programmable tripping thresholds with delay time
• Trip resetting, selectable manual or automatic
• Automatic resetting with programmable delay
• Memory function, option to store relay state at power loss and reset on power return
• Option to select relay state during regular operation, positive fail-safe operation

Designed specifically for measuring AC frequency in single phase systems these versatile meters are used in a wide range of applications from installation in control panels to test bed use in factories and test laboratories. To extend the functionality a programmable relay output is included as standard with one changeover contact to signal or activate preset protections in case of alarm conditions, e.g. disable a system in overvoltage out-of-limits conditions.

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