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Operation l 4-23
Autotuning (continued)
10 To return to the normal control, cycle the heater to Standby and then
back to Enable.
11 If “Tune Error 1” is displayed, the autotune was not successful and the
process must be repeated. The most likely reason for this error is that the
difference between the starting temperature and the autotune tempera-
ture was not at least 50ºC (122ºF).
tun
Er.1
4
Operation