Chapter 3, How to use the key and displays, Chapter 3: how to use the keys and displays – Watlow Series 93 User Manual

Page 17: Keys, displays and indicator lights, Series 93 keys and displays, Keys and displays

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W a t l o w S e r i e s 9 3

K e y s a n d D i s p l a y s

3 . 1

Keys and Displays

Figure 3.1 - Series 93 Keys and Displays.

After 60 seconds with no key presses, the controller reverts to the default display —
the process value in the upper display and the set point in the lower display.

3

How to Use the Key and Displays

Lower Display: Indicates
the set point, output value,
parameters for data in the
upper display, or error and
alarm codes.
• To set to blank: set
[`dSP] to [`Pro] in the
Setup Menu.

Infinity Key
• Press once to clear any
latched alarms. It also
disables the deviation alarm
output if silencing is enabled.
• Press again within five
seconds to change from Auto
to Manual or vice versa. While
in Manual mode, percent
power is in the lower display.

% Percent Power Indicator
Light
• Lit: the controller is in Manual
operation. Press the ˆInfinity
key twice to enter Automatic
operation.
• Blinking: press the ˆInfinity
key to toggle between Auto and
Manual. Returns to its previous
state and stops blinking if the
ˆInfinity key is not pressed
within five seconds.

Output 1 Indicator Light: Lit
when Output 1 is energized.

Upper Display: Indicates
the process value, actual
temperature, operating
parameter values or an open
sensor. When powering up,
the Process display will be
blank for five seconds.
• To set to blank: set

[`dSP]

to

[`SEt] in the Setup

Menu.

Advance Key: Press to
step through the
Operations, Setup and
Calibration Menus.
In the Auto mode, new
data is self-entering in five
seconds.

93

Output 2 Indicator Light: Lit
when Output 2 is active. This
output can be configured as
a control or alarm output.

Up-arrow and Down-
arrow Keys:
Increases or
decreases the value of the
displayed parameter.
• Press lightly to increase
or decrease the value by
one.
• Press and hold down to
increase or decrease the
displayed value at a rapid
rate. New data will self-
enter in five seconds, or
can be entered by
pressing the Advance
Key.
• Press both
simultaneously for three
seconds to enter the
Setup Menu. The

[`LOC]

parameter appears.
• Continue pressing both
keys to enter the
Calibration Menu.

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