Chapter 3, How to use the keys and displays, Keys and displays – Watlow Series 94 User Manual

Page 15

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W a t l o w S e r i e s 9 4

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

3 . 1

Keys and Displays

Figure 3.1 - Series 94 Keys and Displays

After one minute with no key activations, the controller reverts to the default displays.

3

How to Use the Keys and Displays

Lower Display: Can
indicate actual
temperature, alarm low,
alarm high, limit low set
point value, limit high set
point value, output value,
parameters for data in the
upper display, or error and
alarm codes.
• To set to blank: set
[`bot] to [`no`] in the
Setup Menu.

RESET Key
• Press once to clear any
limits and latched alarms.

• Press once to silence alarm
output if silence is enabled.

• Automatic reset on power
loss.

Output 1 Indicator Light: Lit
when limit output is tripped.

Upper Display: Can indicate
actual temperature, alarm
low, alarm high, limit low set
point value, limit high set
point value, operating
parameter values or an open
sensor. When powering up,
the upper display will be
blank for five seconds.
• To set to blank: set

[``UP] to [`no`] in the

Setup Menu.

Advance Key: Press to
step through the
Operation, Setup and
Calibration Menus.

LIMIT 94

Output 2 Indicator Light: Lit
when alarm output is tripped.

Up-arrow and Down-arrow Keys:
Increases or decreases the value
of the displayed parameter.
• Press once 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] Lock

parameter appears.

• Continue pressing both keys for
three seconds to enter the
Calibration Menu.

RESET

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