BARTON_242E_TEMPERATURE CHART RECORDER_VERIFICATION

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BARTON 242E CHART RECORDER
The thermal system senses temperature changes, using the thermal expansion
priciple. Temperature changes cause thermal expansion and contraction of
mercury in the bulb. When heated mercury expands, it increases in volume,
causing the bourdon tube to exert mechanical force. The bourdon tube movement is transmitted through mechanical linkage to a recording pen

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