Operation-System
WATLOW Series 988 User’s Manual 5.3
Operation Menus, Chapter 5

System Prompts

After you step past the Set Point 2 prompt [`SP2] and the Idle Set Point
prompt [IdSP] to the Operation menus, the Series 988 displays the menu
selection ( [`SYS], [PidA] or [PidB] ) in the upper display and [OPEr] in
the lower display.
The Up-arrow >or Down-arrow key <selects another menu. Press the
Mode key µto display the first prompt in the lower display and its value
in the upper display. Use the Up-arrow >and Down-arrow <keys to
change the value in the upper display. The new value will not take effect
until after a five-second delay or until you press the Mode key µ.

Set Point 2

Select a second set point that will activate output 2. This allows you to
boost the heating or cooling action of the output 1 device.
• The range and default settings depend on the [`In1], [`rL1] and
[`rH1] settings (Input Menu).
[`SP2] This prompt appears only if [`Ot1] and [`Ot2] (Output Menu) are
both set to [``Ht] or [``CL].
[`rL1] …[`rH1]
[`SP2] [`SP2]

Idle Set Point

Select the set point to be activated by an event input. This allows you
to select a temperature that will be maintained when the application is
idle.
• The range and default settings depend on the [`In1], [`rL1] and
[`rHI] settings (Input Menu).
[IdSP] This prompt appears only if [`Ei1] or [`Ei2] (Global Menu) is set
to [IdSP].
[`rL1] …[`rH1]
[IdSP] [IdSP]
˜
NOTE:
Decimal points may
not always be in the
position specified
below depending
on the the settings
in the Decimal 1
[dEC1] and Decimal
2 [dEC2] parame-
ters in the Input
Menu.
[`SP2][IdSP]
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