There are three main product group types including:
- AC Volts
- DC Volts
DC Voltage and current inputs are supplied into high stability ranging components which reduce the input signal to a 2 volt level. If the input is below 2 Volts and amplifier is employed to derive 2 Volts. The 2 Volt signal is then presented to the A/D converter which provides the digital information to drive the LED display.
A Frequency to Voltage F/V converter is utilised, converting the output signal to a DC signal. This DC signal is fed into the A/D converter and the same process as in the AC and DC circuits previously described takes place.