Sigma C4 manual U1c 65.0 u1f

7.7.9 QU Quit Controlling

The QU command stops the C4 from controlling. All heating and cooling is turned off, the blowers are set to the mode determined by setup parameter F15 (Blower Shut-off Mode). The command syntax is:

QU<CR><LF>

After a QU command, the display will show:

u1c 65.0 u1f 102.6

(Celsius mode) (Fahrenheit mode)

Note: The C4 can also be commanded to STOP controlling the temperature by issuing IEEE-488 standard I/O statements ABORTIO, Bus Clear, or Selected Device Clear.

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