Chart 3 -
Operation Menu
Prompts and
Descriptions.
Dead Band:
Enter the Dead Band between the heating and cooling functions
adjustable from ± 99°F/± 55°C. The default is 0°. Appears when Ot2 = CL.
Alarm Low:
Represents the low process alarm or low deviation alarm.
Displayed only when 0t2 parameter is AL.
Alarm High:
Represents the high process alarm or high deviation
alarm. Displayed only when Ot2 parameter is AL.
Calibration Offset.
The range is ±99°F/±55°C. The default is 0°.
Calibration Offset adds or subtracts degrees from the input signal.
Auto-Tune. The
range of this parameter is 0-3, off = 0, slow = 1,
medium = 2, and fast = 3. A value other than 0 initiates the auto-tune.
Local-Remote:
Selects a local or remote set point for the Series 980/985.
Local set point is adjustable directly from the 980/985, while remote can only
be changed from an external device. The signal must be within O-5V or 4-
20mA process input. This parameter appears if the LOC parameter = 0, 1 or 2,
and
rSP = 0-5 or 420.
If L-r = the remote set point is displayed in place of the
internal set point.
Use this page as a master copy for your Series 980/985. Operation Parameters.
Do not enter any values here: make photocopies instead.
1
Operation Parameters
Value
Range
Factory Default
SP2
rL to rH
Same as primary set point.
Pbl
0
to 999°F/0 to 555°C or
25°F/l3°C (3 or 4
digit)
0 to 99.9°F/0 to 55.5°C
0=ON/OFF control
with 3°F or 1.7°C
switching differential.
0.3°F or 0.17°C
for 0.10 units.
Pb2
Same as Pb1
.
Only appears
if
0°F/0°C
(3
or
4 digit)
Ht/CL or CL/Ht
operation.
rE1
0.00
to 9.99 repeats/min.
0.00 repeats/min.
0.00 = No Reset Action
rE2
Same as rE1. Only appears if
0.00 repeats/min.
Ht/CL or CL/Ht operation.
Will not appear if Pb2 = 0.
rA1
0.00
to 9.99 min.
0.00 min.
0.00 = No Rate Action
rA2
Same as rA1. Only appears
0.00 min.
if Ht/CL or CL/Ht operation.
Will not appear if Pb2 = 0.
AL0 -
Deviation
dE
-99°
to (3 digit display)
-99°
-999° to 0° (4 digit display)
-999°
Process
Pr
rL
to AH1
rL
AHI -
Deviation dE
0 °
to 99° (3 digit display)
99°
0 °
to 999° (4 digit display)
999°
Process
Pr
AL0 to
rH
Ctl
1 to 60 seconds
5 seconds
Ct2
1 to 60 seconds
5 seconds
Appears if Ht/CL or CL/Ht
Will not appear if PB2 = 0
db
±99°F/±55°C.
0
Appears if Ht/CL or CL/Ht
CAL
±99°F/±55°C
0
AUt
0-3
0
Appears if Ot1 = Ht.
L-r
L or r.
Appears if rSP = 0-5 or 420.
2 8 WATLOW Series 980/985 User’s Manual Setup, Chapter 4
