Watlow Series SD31 PID with Optional Countdown Timer - Manual (Page 16)

Wa t l o w S e r i e s S D 3 1
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1 4
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C h a p t e r 3 K e y s a n d D i s p l a y s
Keys and Displays
3
Note: After 60 seconds with no key presses, the controller reverts to the Home Page.
SET
1
2
%
RDY
SDXX
Four Digit, LED Display:
• Indicates process value or
set point information
or
• Page name, prompt name
or prompt value, depend-
ing upon the key combi-
nation pressed.
Timer Indication (timer
option only)
Colon indicates status of
timer.
Active Output
Indicator Lights
Lit when the correspon-
ding controller output or
alarm is on.
Ready Status Indica-
tor Light (timer op-
tion only)
Lit when the correspon-
ding controller output is
on.
Auto-Manual Control
Indicator Light
On: Manual Mode (open-
loop control)
Off: Auto Mode (closed-
loop control)
Set Key
Press to view set point, process or
parameter values, depending on
[~dsp} setting. Release ß Key
to view page or parameter informa-
tion.
Infinity Key
Returns to the Home Page.
Press and hold the Infinity Key ˆ
for about 2 seconds to enter the
Operations Page.
Clears latching alarms.
Up and Down Keys
On the Home Page, adjusts the set
point (you may need to press and
hold the
ß Key depending on
[~dsp} setting).
On other pages, selects parame-
ters, or allows changing parameter
values when
ß Key is pressed.