Dickson Circular Chart Paper: C010, C012, C022, C026 and C439

These genuine Dickson replacement charts have different diameters, recording periods and printed scales. Match the chart reference on your existing paper and confirm your recorder setting before ordering. The five references below are separate options on this product page; one selection supplies one pack of 60 sheets.

Chart referenceDiameterPeriodPrinted rangeDickson recorder examplePack
C010 4 in (101 mm) 24 hours 0–100 scale PW470 (0–100 psi) or SL4100 (0–100°F) 60 charts
C012 4 in (101 mm) 7 days 0–100 scale PW470 (0–100 psi) or SL4100 (0–100°F) 60 charts
C022 4 in (101 mm) 24 hours 0–300 psi PW476 60 charts
C026 4 in (101 mm) 24 hours 0–200 psi PW474 60 charts
C439 8 in (203 mm) 7 days 0–250°F/°C Compatible KT8 temperature recorder configurations; verify the printed chart reference 60 charts

How to choose

Check the reference first. Similar-looking Dickson charts can have different time markings or measuring scales. C010 and C012 share a 0–100 printed scale but have different recording periods: 24 hours and 7 days respectively. Dickson lists them for both PW470 pressure and SL4100 temperature configurations, so confirm the reference printed on your chart. C022 and C026 are both 4-inch, 24-hour pressure charts, but their pressure ranges differ. C439 is a larger 8-inch, 7-day temperature chart and is not interchangeable with the 4-inch charts.

If your recorder uses another Dickson chart reference, see the Dickson chart paper selection guide or send us the reference printed on your existing chart for help identifying it.

Recorder pens

Need replacement ink as well? Shop Dickson recorder pens P222, P226 and P246. Match the pen type to your recorder before ordering.



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