Specifications

Section 11. Programming Resource Library
11-2
11.1.2 CRBASIC Programming
Field calibration functionality is utilized through either:
FieldCal() -- the principal instruction used for non-strain gage type
sensors. One instruction is entered for each sensor to be calibrated.
or
FieldCalStrain() -- the principal instruction used for strain gages
measuring microstrain. One instruction is entered for each gage to be
calibrated.
with two supporting instructions:
LoadFieldCal() -- an optional instruction that evaluates the validity of, and
loads values from a CAL file.
SampleFieldCal -- an optional data storage output instruction that writes
the latest calibration values to a data table (not to the CAL file).
and a reserved Boolean variable:
NewFieldCal -- a reserved Boolean variable under CR1000 control used
to optionally trigger a data storage output table after a calibration has
succeeded.
See CRBASIC Editor Help for operational details on CRBASIC instructions.
11.1.3 Calibration Wizard Overview
The LoggerNet Field Calibration Wizard steps through the calibration process
by performing the mode variable changes and measurements automatically.
The user sets the sensor to known values and inputs those values into the
Wizard.
When a program with FieldCal()instructions is running (FieldCalStrain to be
implemented in later versions of LoggerNet), select “LoggerNet | Connect |
Tools | Calibration Wizard” to start the wizard. A list of measurements utilized
in any FieldCal instruction in the program is shown.
11.1.4 Manual Calibration Overview
Manual calibration is accomplished by changing the value of the FieldCal() or
FieldCalStrain() mode variable through the CR1000KD keyboard display or
LoggerNet numeric monitor. The datalogger does not check for out of bounds
values in mode variables. Normal mode variable entries are restricted to “1” or
“4”.