Calibrating Your Watlow Process Control; The Factory (Fcty) Menus; Entering The Fcty Prompt - Watlow Controls 981 Series Calibration Manual

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:
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.
WA TL W
PROCESS
L1 L2 L3 L4
DEV
DISPLAY
% OUT
AUTO
MAN
MODE
SERIES 988
Series 981 Series 986
Series 982 Series 987
Series 983 Series 988
Series 984 Series 989
3 Seconds
WA TL W
PROCESS
L1 L2 L3 L4
DEV
DISPLAY
% OUT
AUTO
MAN
MODE
SERIES 988
WATLOW Series 988 Calibration Manual
Menus/Prompts
NOTE:
The Fcty menu is
not available on a
Series 981 - 984.
Figure 1 -
Entering the
Fcty Prompt
NOTE:
The Series 981 - 984
units have a
Hold/Run key in
place of the
Auto/Man key.
3