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■ AT type setup
(1) In the operation display mode, keep the [para] key
pressed for 2 sec. or longer.
>> The unit then enters the parameter setting mode.
(2) Press the [para] key several times.
>> Display the parameter setting [At.ty: AT type].
(3) Press the [<], [], or []key to set the value you have
selected from the following in [At.ty].
0: Normal (Standard control characteristics)
1: Immediate response (Control characteristics immediately responding
to external disturbance)
2: Stable (Control characteristics having less up/down fluctuation of
PV)
>> When no keys are pressed for 2 sec. or longer, the flashing of the numeric
value is stopped to set the currently displayed value.
(4) Press the [mode] key.
>> The display is returned to the operation display.
Handling Precautions
• The set value “1” (immediate response) is suitable for a process that
the heater heat affects the PV directly and is intended for the
adjustment aiming at the immediate response.
• The set value “2” (stable) is suitable for a process that the heater heat
affects the PV indirectly and is intended for the adjustment aiming at
the stability.
• When compared to the AT function of Azbil Corporation’s
conventional model, the results similar to the SDC10 are obtained
when the set value “1” (immediate response) is set and the results
similar to the SDC20/21 are obtained when the set value “0” (normal)
is used.
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