Set-Up; Power-Up; Select Input Sensor; Select Display Units - Omega Engineering CN9400 User Manual

Dual display autotune temperature controller
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This section details the four step initial configuration that
enables control with factory PID settings to start, once the
setpoint has been entered.

POWER-UP

On power-up the controller will display the self test
sequence and brief display blanking
1

SELECT INPUT SENSOR

Press and hold
and use either the
scroll through the sensor selection (see table p.31).
When the correct sensor is displayed, release the
buttons. The controller will now display selected sensor
type e.g.
2
TO SELECT °C/°F
Press and release the
button, the controller will now
display
Press and hold the
button and using the
select °C, °F, Bar, PSI, Ph, Rh or SEt as required. Release the
buttons when the correct unit is displayed.
The controller will now display unit and e.g. ºC
INPT
NONE
or
buttons to
INPT
TCS
UNIT
NONE
button
UNIT
*C
3
TO SELECT SP1
(Main setpoint output device)
Note: Dual Relay and Dual SSd Output Options Models
CN9411 and CN9422 have their outputs pre-
configured. (see page 22)
Press and release the
button, the controller will now
display
Press and hold the
button and using the
select SSd or rLY as required. Release the buttons when
the correct device is displayed. The controller will now
display SPI.d and selected output device e.g. SSd .
4
To enter initial configuration into
controller memory
Press and hold
both
and
The upper display will now alternate ParK
and measured variable (temperature)
(eg. 23 ) ParK is displayed because
a setpoint has not yet been entered as
shown by the lower display
TO SET THE MAIN SETPOINT
To display the setpoint, press and hold the
0 or °F and 32 will be displayed. Press and hold the
button. Press
to increase or
The main setpoint LED will flash indicating that SP1 output is
ON. The controller will now be set with the factory PID
settings.

SET-UP

SP1>D
button
SP1>D
buttons for 3 seconds.
PARK
button. °C and
to decrease the setpoint.
NONE
SSD
0
5

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