WATLOW Series 988 Calibration Manual
3
Menus/Prompts
Calibrating Your Watlow Process Control
This manual is a supplement to the Series 981/982 and 988/989 User’s Manual.
The calibration procedures within this manual pertain to the following controls:
Series 981
Series 986
Series 982
Series 987
Series 983
Series 988
Series 984
Series 989
Use in conjunction with the appropriate user’s manual. From this point on, 988 will
be used in place of the above listed models.
Before attempting to calibrate, make sure you read through the
procedures carefully and have the proper equipment called for
in each procedure.
The Factory (Fcty) Menus
The Fcty prompt consists of three menus: PLOC, diAg, and CAL. The Fcty prompt
will not appear if the hardware lockout DIP switch is ON. Refer to Chapter 1 of the
User’s Manual (white book).
• The Panel Lockout (PLOC) menu is explained in detail in the Series 988
User’s Manual.
• The Diagnostics (diAg) menu contains specific information for each control. It
is explained in detail on Page 4 of this manual.
•
In the Calibration menu (CAL), various input signals must be supplied for the
control to go through its auto calibration. See Page 5 for the complete
Calibration menu and procedures.
Make sure the input type DIP switches are in the proper position before beginning.
Refer to the 988 User’s Manual.
Entering the Fcty Prompt
The Fcty prompt can only be entered from the SEt prompt.
• Press the Up/Down keys simultaneously for 3 seconds (
±
1 second). Any inad-
vertent change in the displayed data, when pressing the Up/Down keys is
ignored. The SEt prompt appears in the lower display.
• Continue pressing the Up/Down keys simultaneously for another 3 seconds and
the Fcty prompt appears in the lower display with PLOC in the upper display.
For 981 - 984 units the dIAg prompt appears in the upper display.
TL
W
WA
PROCESS
L1
L2
L3
L4
DEV
% OUT
DISPLAY
SERIES 988
MODE
AUTO
MAN
TL
W
WA
PROCESS
L1
L2
L3
L4
DEV
% OUT
DISPLAY
SERIES 988
MODE
AUTO
MAN
Figure 1 -
Entering the
Fcty Prompt
3 Seconds
NOTE:
The Fcty menu is
not available on a
Series 981 - 984.
NOTE:
The Series 981 - 984
units have a
Hold/Run key in
place of the
Auto/Man key.
