Athena 6075 series, Instruction Manual, Page: 22 / 39

pressed the INDEX
key, the unit will advance to the High and Low
Calibration positions. but index no further until the SETPOINT
key is depressed.
CAUTION:
DO NOT CHANGE THE CALIBRATION LOW [cL(Zero)]
O R CALlBRATlON H I G H [cH(Span)] A D J U S T M E N T
UNLESS YOU INTEND TO, ARE QUALIFIED AND HAVE
A CALIBRATION TEST SETUP CONNECTED.
9. Press Index and Alarm One (Al) appears in the upper display area. If
this option is installed. set in the desired temperature value, then
press ENTER.
10. Repeat for (-A2-) Alarm two, if installed
11.
Refer to the section on tuning the 6075 for the remainder of the
settings.
NOTE: When finished entering all parameters return to -cd- using the
INDEX key. Select the level of security desired and enter the appropriate
value into memory.
#1 - Allows changes to set point only.
#8 - Allows changes to first nine parameters only.
#14 - Allows changes to 9 parameters and calibration constants.
NOTE: Any other value only allows changes to -cd-
Reference Notes
NOTE 1: Parameters # 10 thru # 16 are accessed from the front panel only,
and can not be set from a remote terminal
NOTE 2: The gain value (-HG-&-CG-) is multiplier used to increase the sen-
sitivity of the controller according to the formula: Output = Gain (E + I + D)
where E = Error. I = Integral. D= Derivative, Its relationship to proportional
band is as follows:
Unit Span
PROP BAND =
Heat Gain (HG) or Cool Gain (CG)
Note that proportional band is an inverse function of gain, The range of
18
adjustment is 0 to 400 for Heat. 0 to 400 for Cool.
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