Parameter Generation and Control 9354-4250, Инструкция по установке и эксплуатации

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PGC, Inc. Appendix B; SmartPad version 0.503 Steady State & Programmable
November 2005 B-8
Program Set Point Screen (Programmable Mode)
The program set point screen allows the user to enter the program data. Up to 40
segments can be entered (00-39). Each segment must include a duration time as well as
the two set point parameters (Air/Rh in cascade, dryer or slow damper mode or Air/Water
in two temperature mode). The duration time will be the amount of time required for the
set point to change from its current value to the value defined by that segment.
Typically, a program will consist of a sequence of ramps and dwells. A ramp would
define the time required for the set points to change from one condition to another. A
dwell would define the amount of time that the set points will remain stable at the new set
point. In this fashion, it will usually require two segments (one ramp and one dwell) for
each condition that is to be achieved.
The time duration must be in a range from 0 seconds to 17 hours, 59 minutes, 59 seconds.
If longer segments are require simply program two segments to double the time.
Keep in mind that the SmartPad™ is only controlling the amount of time required for the
set points to change. The actual time required for the conditions in the chamber to
change will depend on several physical factors.
SEG: indicates the segment to be programmed.
TIME: indicates the duration of the segment being programmed.
AIR and WATER or RH SETPOINT: indicates the set point for that parameter that is to
be obtained
after the time has expired.
Key for function keys action
F1 = TAB: increments the cursor
from field to field
F2 = NEXT: accesses the next
segment
F3 = INIT: access the initialization
screen
F4 = ESC: return to process variable
screen
SEG 01 TIME: 00:00:10
AIR SET POINT 23.0ºC
RH SET POINT 50.0%
TAB NEXT INIT ESC