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CN 2110 Temperature Controller
CN 2110
Section 7—Calibration
Calibration offset offsets the displayed value. Usually, this option is
used to match displays of two different instruments that are measuring
the same temperature, but are displaying different temperatures due to
different thermocouple accuracy or placement of the thermocouples.
Caution is advised when adding an offset to the display, since the actual
sensed temperature will not be displayed.
Calibration offset (coFF) is available in the configuration mode, but
only displays if the security lock (LocH) is set to 736.
Calibration
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Section 7–Calibration
Factory Default
Recovery
This option allow you to return the controller’s configuration parameters
back to the factory default values (except for the LocH menu). This
parameter could be used when moving a unit from one application to
another to give the operator an easy place to begin setup of the unit.
Factory Default Recovery is performed in the Configuration Mode,
menu dFLt. The security lock (LocH) must be set to 736 to perform a
factory default recovery.
To reestablish the factory default values:
1. Disconnect load power.
2. In the Configuration Mode, set security level (LocH) to 736.
3. Go to menu dFLt and press
. The controller will automatically
reset the values. When the display cycles from rEdy to donE, the
recovery is complete.
Calibration Offset
The CN 2110 Temperature Controller is factory calibrated before
shipment. Recalibration is not needed when you receive and install the
product. Periodic calibration checks or adjustments should not be
necessary under normal operating conditions. Omega recommends you
recalibrate the controller if all instruments in your facility are periodi-
cally calibrated to a known standard.
The CN 2110 always retains the original factory calibration values for
the J, K, and RTD inputs. In an application, only one of these sensor
inputs will be used. The CN 2110 only can retain manual calibration for
a single sensor.
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