QM120C

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The QM120C is a panel-mounted electronic counter instrument used to measure elapsed time, totalize and display up to six-digits of pulses or counts from a variety of sources. The instrument is available as either an AC or DC powered unit, and is available either as a panel mount or a DIN mount instrument, both with 120VAC meter power or 13-32Vdc supply. The instrument is provided with four NPN open-collector inputs, one TTL input, and one relay output.

The QM120C operates on the principle of a master clock that is used to create and reset the display, while the input pulses are used to increment the display. The master clock operates at a rate of approximately 0.2kHz, and is determined by the applied supply voltage. The unit is capable of counting up to 99,999 counts in a single cycle. The count increments when the active edge of an input signal arrives at the input pin. When the count reaches the end-of-count limit, the display will reset to `000\' and the count will start again.

The QM120C can be used in a wide variety of applications such as industrial machinery control systems, process control systems, fractional time measurement, event counting, motor speed monitoring, alarm systems and many other applications. This unit is suitable for a wide range of applications and is designed to be reliable and easy to use. It is available in either a single unit or a multi-unit configuration with multiple input and relay outputs.

The QM120C is a versatile and powerful electronic count meter that is suitable for a variety of applications. It features a range of input and output options and is simple to install and operate. It is a reliable and cost effective solution for measuring elapsed time, totalizing and displaying pulses or counts from a variety of sources.

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