The term "calibration" in the context of smart/intelligent transmitters is often misunderstood. The information provided here serves to explain the difference between sensor trim, range setting, and current trim.
Plants have hundreds or thousands of devices of different types from different manufacturers to to calibrate
In the past these transmitters required a technician to be sent to the field to change the range with a handheld field communicator. Other times the opposite was true, when sensor trim was done at the transmitter in the field, somebody had to be in the control room to work from the software.
Calibration is now performed using handheld field communicator or intelligent device management software based on EDDL, whichever suits the task at hand best.
EDDL technology makes calibration easier thanks to user guidance such as wizards as well as know-how made available from the device manufacturer's experts. The result is lower cost of maintenance, and better performing devices.
How intelligent transmitters are calibrated is sometimes misunderstood and will therefore be explained in technical white papers and videos below. The importance of EDDL for calibration is also explained.
EDDL technology supports small portable field communicators for easy field work, and there is no other way to achieve a comparable result.
Technical White Papers
Tutorial: Intelligent Device Calibration
EDDL makes working in the field easy
Calibration Trim Wizard using EDDL