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<DIV><FONT face=Arial size=2>Dear All,</FONT></DIV>
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<DIV><FONT face=Arial size=2>I must control the input control signal of a pump
so that it works if the difference between temperature_1 and
temperature_2 is:</FONT></DIV>
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<DIV><FONT face=Arial
size=2>
temperature_1 - temperature_2 > 2°C</FONT></DIV>
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<DIV><FONT face=Arial
size=2> temperature_1
- temperature_2 < 10°C</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Could anybody tell me what type can help
me?</FONT></DIV>
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<DIV><FONT face=Arial size=2>Thanks in advance.</FONT></DIV>
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