If you do not want to perform an adjustment, you can update the calibration date and onboard
calibration temperature without making any adjustments:
1.
Call the DAQmx Initialize External Calibration function to start a calibration session on
the FieldDAQ device. The default password is
NI
.
2.
Call the DAQmx Set Temperature FieldDAQ Calibration function to input the external
temperature in degrees Celsius.
3.
Call the DAQmx Close External Calibration function to end the session. Set the Action
input to Commit.
Reverification
Repeat
to determine the As-Left status of the device.
Note
If any test fails reverification after performing an adjustment, verify that you
have met the all conditions listed in
before returning your device to
for assistance in returning the device to NI.
Accuracy Under Calibration Conditions
The values in the following table are based on calibrated scaling coefficients, which are stored
in the onboard EEPROM.
The following accuracy table is valid for calibration under the following conditions:
•
Ambient temperature 23 °C ± 5 °C
•
No nodes share power with the FieldDAQ device under calibration
The test limits listed in Tables 3 and 6 are derived using the values in the following table.
Table 8. FD-11613/11614 Voltage Accuracy Under Calibration Conditions
Mode
±PPM of Reading
±PPM of Range
*
High Resolution
362
55.9
Best 50 Hz Rejection
365
56.9
Best 60 Hz Rejection
365
56.9
High Speed
487
62.3
* Range = 78.125 mV
Note
Values in this table are intended for calibration verification only. These
values only apply under the specific calibration conditions described in this
document, and are not to be construed as general operational specifications of the
FD-11613 or FD-11614. For operational specifications, refer to the most recent
FD-11613 Specifications
or
FD-11614 Specifications
.
FD-11613/11614 Calibration Procedure
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© National Instruments
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