Chromalox TEMPERATURE CONTROLLER 1604-7 - Manual (Page 35)

Appendix A.1
APPENDIX A
DEFAULT PARAMETERS
DEFAULT OPERATIVE PARAMETERS
The control parameters can be loaded with
predetermined default values. These data are the
typical values loaded in the instrument prior to
shipment from factory. To load the default values
proceed as follows:
a) The internal switch should be closed.
b) The SMART function should be disabled.
c) The upper display will show the process
variable while the lower display will show the
set point value.
d) the device must be in "UNLOCK"
and"LOCAL" conditions
e) Held down t pushbutton and press s
pushbutton; the display will show:
e) Press s or t pushbutton; the display will show:
g) Press FUNC pushbutton; the display will show:
This means that the loading procedure has been
initiated. After about 3 seconds the loading
procedure is terminated and the instrument
reverts to NORMAL DISPLAY mode.
The following is a list of the default operative
parame-ters loaded during the above procedure:
PARAMETER DEFAULT VALUE
SP = Minimum range-value
SnrT = Disabled
n.Srt = OFF
SP2 = Minimum range value
nnn = OFF
A1, A2 = Minimum range-value for
process alarms
0 for deviation or band alarms
HSA1, HSA2 = 0.1 %
Pb = 4.0 %
HyS = 0.5 %
ti = 4.00 (4 minutes)
td = 1.00 (1 minute)
IP = 30.0 for one control output
0.0 for two control outputs
Cy2 - Cy3 = 15 seconds
If two control outputs are
configured and OUT2 (OUT 3) is
configured as "dir", the default
value will be equal to:
10 seconds when P22 = AIr
4 seconds when P22 = OIL
2 seconds when P22 = H2O
rC = 1.00 for P22 = AIr
0.80 for P22 = OIL
0.40 for P22 = H2O
OLAP = 0
rL = Initial scale value
rH = Full scale value
Grd 1 = Infinite (step transfer)
Grd 2 = Infinite (step transfer)
OLH = 100 %
tOL = Infinite
rnP = 25.0 % /s.
O F F
d F L t
O N
d F L t
L O A d
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