Chart No.20S is a Sunday start chart printed in grey with red temperature markings, measuring from 28 - 31 inches of pressure and 0 - 100 OPT. Paper size is 95mm x 300mm. Each pack contains 100 charts which is two years’ worth of drum recorder papers.
Based on a traditional Negretti design these non-adhesive baro-thermograph charts are ideal for recording drums that have a clip to hold the chart in place. If your combined recording drum does not have a clip Metcheck suggest using our chart tape to hold the sheets in place.
|28 - 31 inches of pressure
|0 - 120 OPT
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