Fuji Electric ZKMA, Инструкция по эксплуатации

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10.4.8 PID auto tuning
Description

Heater temperature of the detector is PID controlled. This "PID auto-tuning" function optimizes each
value of P (proportion), I (integration) and D (derivation) for the environment where the unit is in-
stalled.
Note: Each value of P, I, and D has been set at factory. If temperature is not properly controlled, per-
form PID auto tuning.

Measured value and analog output become unstable during PID auto tuning because the controlled
temperature goes up and down.

You can hold the analog output value during PID auto tuning, because it is a part of maintenance (Re-
fer to 10.5.9 “Hold treatment setting
(maintenance hold)”).

You cannot use PID auto tuning with auto calibration or automatic blowdown at the same time.
Procedu
re
Operation
(example)
Execute PID auto tuning from the screen
Key operation Description
Displayed message
(LCD)
(1) Display the screen on the right in accordance with the key
operation summary and press the
key to display the
PID AUTO TUNING START screen.
MAINTE MENU
PID AUTO TUNING
(2)
Press the key to start PID auto tuning.
PID AUTO TUNING
START
(3) Temperature to be displayed changes during PID auto
tuning.
PID AUTO TUNING
 °C
(4) When PID auto tuning is finished automatically, the dis-
play returns to the screen on the right.
MAINTE MENU
PID AUTO TUNING
How to cancel

Press the key to cancel PID auto tuning.
If you cancel PID auto tuning, each value of P, I and D is to be the value before tuning.