User Interface
Display:
Dual 4-digit LED Displays
Keypad:
4 keys
Programming Port:
For automatic setup, calibration
and testing
Communication Port :
Connection to PC for
supervisory control
Control Mode
Output 1:
Reverse ( heating ) or direct ( cooling )
action
Output 2:
PID cooling control, cooling P band
50~300% of PB, dead band -36.0 ~
36.0 % of PB
ON-OFF:
0.1 - 90.0 ( F ) hysteresis control
( P band = 0 )
P or PD:
0 - 100.0 % offset adjustment
PID:
Fuzzy logic modified
Proportional band 0.1 ~ 900.0 F.
Integral time 0 - 1000 seconds
Derivative time 0 - 360.0 seconds
Cycle Time:
0.1 - 90.0 seconds
Manual Control:
Heat (MV1) and Cool (MV2)
Auto-tuning:
Cold start and warm start
Failure Mode:
Auto-transfer to manual mode
while
sensor break or A-D converter damage
Ramping Control:
0 - 900.0 F/minute or
0 - 900.0 F/hour ramp rate
Digital Filter
Function:
First order
Time Constant:
0, 0.2, 0.5, 1, 2, 5, 10, 20, 30, 60
seconds programmable
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