Instruction Manual
D102748X012
DLC3010 Digital Level Controller
Configuration
May 2018
62
accurate. Use this procedure when the process cannot be moved to zero for capture, but gain is known to be correct
(only a bias error exists).
Before calibration, use the Configure > Manual Setup >Sensor menu to verify that all sensor and compensation data
match the calibration conditions.
Follow the prompts on the Field Communicator.
1. Adjust the process condition or simulation to any valid and observable value.
2. Enter the external observation of the measurement in the current PV units.
Secondary
Temperature Calibration
Field Communicator Configure > Calibration > Secondary > Temperature Calibration (2-4-2-1)
This procedure allows you to display the temperature as measured by the instrument. You can then trim the
temperature reading so that it matches the actual temperature more closely in the region of interest. (This is an offset
adjustment only. There is no ability to change the gain.)
This calibration is initially performed at the factory. Performing it in the field requires an accurate independent
measurement of the instrument housing temperature or process temperature, (as appropriate). The instrument
should be at a steady‐state condition with respect to that temperature when performing the procedure.
Note
The effectiveness of the instrument electronic temperature compensation depends upon the accuracy of the electronics
temperature offset stored in the NVM (non‐volatile memory). If the electronics temperature is incorrect, the temperature curve
applied to the magnets and Hall sensor will be misaligned, resulting in over‐ or under‐compensation.
D Instrument Temperature is the value currently reported by instrument.
D Instrument Temperature Offset is the current trim value in use by instrument.
D Trim Instrument Temperature— Follow the prompts on the Field Communicator to trim the instrument
temperature.
D Process Temperature is the value currently reported by instrument.
D Process Temperature Offset is the current trim value in use by instrument.
D Trim Process Temperature is available if the Process Temperature Source is not Manual. Follow the prompts on the
Field Communicator to trim the process temperature.
Note
If a process temperature sensor (RTD) is not installed, it is possible to manually set the Digital Process Temperature variable to the
target process temperature. Go to Configure > Manual Setup > Process Conditions > Temperature Setting.
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