How to find the right Circular Chart Paper AI guide

Written by an AI model from its trained knowledge.

What the AI looks for in Circular Chart Paper

Recorder part number match: Buy the chart listed for your recorder's exact model or chart part number. Same diameter alone does not guarantee a fit. Center-hole size, the time-line arc and the printed grid are recorder-specific, so a near match records misaligned data.
Chart diameter: Must equal the recorder's chart size. Common sizes are roughly 4, 6, 8, 10 and 12 inches. A wrong diameter either will not mount or puts the scale out of the pen's travel.
Rotation period: The chart's printed period (for example 24-hour or 7-day) must match the recorder's set rotation speed. A mismatch makes every time reading on the chart wrong.
Range and units: The printed range and units (°F or °C, %RH, pressure units) must match the recorder's calibrated span. The pen position only means something against the scale the instrument was calibrated to.
Channels and pen color: For multi-pen recorders, pick charts that print each channel's scale, and match pen colors to your records. Two-pen temperature and humidity charts carry two scales, and a single-scale chart cannot be read for the second channel.

Dickson: Makes charts for its own temperature and humidity recorders, sold by recorder-specific part number.
Partlow: Charts for the MRC process recorders, ordered by range and chart number.
Honeywell: Charts for its Truline and older process chart recorders.
Graphic Controls: Long-standing maker of replacement circular charts for many recorder brands.

Yes, if it is cross-referenced to your recorder's chart number. It needs the same diameter, center hole, rotation period and range.