The PX105 circular chart recorder was launched in 1991. It enabled recording and display of up to 3 variables on a circular chart. The PX105 was available with a flow totalizer option and a number of output options, including relays and mA outputs.
In 2004, the PX105 was superseded by the C1300 advanced circular chart recorder. The C1300 uses the proven C1900 platform and enables up to 4 variables to be recorded, with a totalizer if required. The C1300 is equipped with a high visibility display that enables both process variable and totalizer values to be shown simultaneously.