M Series elapsed time or hours-run meters are available for AC and DC power applications and measure time in increments of 0.01h up to 99999.99 hours, after which the meter automatically resets to zero. To prevent accidental resetting, meters cannot be reset manually before reaching 99999.99 hours.
AC power models within the M Series range of meters are available in three different versions for applications featuring 100V up to 125V AC, 200 up to 250V AC and 380V up to 440V AC and are designed for an operating temperature range from -25degC up to 80degC. Three different DC power variants cover power ranges of 0.5VA (6 up to 30V DC), 1VA (10 up to 80V DC) and 1.5VA (110V DC) and feature an operating temperature range from -20degC up to 70degC. All devices benefit from IP40 protection.