Mercury Instruments offers 8-inch and 12-inch meter driven chart recorders (Mechanical Chart Recorders) for installation on large volume diaphragm, rotary and turbine meters. The major feature of this type recorder is the volume oriented chart. The volume recorder is available with wall, flush, portable or pipestand mounting.
Mercury Honeywell Volume recorders are available in 8-inch and 12-inch charts recorders for installation on large volume diaphragm, rotary and turbine meters.
The output wriggler of the meter provides the mechanical force to drive the gear train in the recorder through the universal mounting bracket. The output shaft of the gear train rotates the circular volume chart. Since the meter drives the circular chart through the gear train, the amount of chart rotation represents the amount of volume passed through the meter. Meter driven charts are divided into 100 equal segments.
The 800 and 700 series recorders utilize the 8" circular volume chart. The 1200 and 900 series recorders utilize the 12" circular volume chart. Meter driven charts can be processed on an electronic optical scanner if they are printed in scanner blue and pressure and temperature lines do not cross one another on the chart.