National Instruments FD-11613 User manual

CALIBRATION PROCEDURE
FD-11613/11614
8-Channel/16-Channel Temperature Input Device for FieldDAQ
This document contains information for calibrating the FD-11613 and FD-11614. For more
information about calibration, visit ni.com/calibration.
Contents
Software Requirements............................................................................................................. 1
Documentation.......................................................................................................................... 2
Test Equipment..........................................................................................................................2
Test Conditions..........................................................................................................................2
Calibration Procedure............................................................................................................... 3
Initial Setup....................................................................................................................... 3
Verification........................................................................................................................4
Adjustment........................................................................................................................ 7
EEPROM Update..............................................................................................................8
Reverification....................................................................................................................9
Accuracy Under Calibration Conditions...................................................................................9
Where to Go for Support.........................................................................................................10
Software Requirements
Calibrating the FD-11613 or FD-11614 requires the installation of NI-DAQmx on the
calibration system. NI recommends using the latest NI-DAQmx driver. Earliest driver support
version for calibrating the FD-11613 or FD-11614 is listed in the following table.
Table 1. FD-11613/11614 Driver Support
Driver Earliest Version Support for Device Calibration
NI-DAQmx 18.1
You can download NI-DAQmx from ni.com/downloads. NI-DAQmx supports many
programming languages, including LabVIEW, LabWindows™/CVI™, C/C++, C#, and Visual
Basic .NET. When you install NI-DAQmx, you only need to install support for the application
software that you intend to use.

Documentation
Consult the following documents for information about the FieldDAQ device and the
NI-DAQmx driver. All documents are available on ni.com/manuals; help files install with the
software.
FD-11613/11614 Quick Start —Instructions for installing and configuring your
FieldDAQ device.
FD-11613 User Guide or FD-11614 User Guide—Information about your FieldDAQ
device.
FD-11613 Specifications or FD-11614 Specifications—Detailed specifications for
your FieldDAQ device.
NI-DAQmx Readme—Operating system and application software support in
NI-DAQmx.
NI-DAQmx Help—Information about creating applications that use the NI-DAQmx
driver.
NI-DAQmx C Reference Help—Reference information for NI-DAQmx C functions
and NI-DAQmx C properties.
Test Equipment
The following table lists the equipment required for calibrating your FD-11613 or FD-11614.
If you do not have the recommended instruments, use the minimum requirements to select
substitute equipment.
Table 2. Recommended Test Equipment
Equipment Recommended Model Minimum Requirements
Calibrator Fluke 5522A locked in the 3.3 V
range
A high-precision voltage source with an
uncertainty of ≤70 ppm when sourcing
up to 50 µA.
Mini TC (x8) Omega SMPW-U-M U type
Test Conditions
The following setup and environmental conditions are required to ensure the FD-11613/11614
meets published specifications:
2| ni.com | FD-11613/11614 Calibration Procedure

• Keep connections to the device as short as possible. Long cables and wires act as
antennas, picking up extra noise that can affect measurements.
• Verify that all connections to the device are secure.
• Use shielded copper wire for all cable connections to the device. Use twisted-pairs wire
to eliminate noise and thermal offsets.
• Maintain an ambient temperature of 23 ±5 °C. The device temperature will be greater
than the ambient temperature.
• Keep relative humidity below 80%.
• Allow a warm-up time of at least 10 minutes to ensure that the FieldDAQ device
measurement circuitry is at a stable operating temperature.
Calibration Procedure
The calibration process includes the following steps:
1. Initial Setup on page 3
2. Verification on page 4
3. Adjustment on page 7
4. EEPROM Update on page 8
5. Reverification on page 9
Initial Setup
Complete the following steps to set up the FieldDAQ device.
1. Install the software and NI-DAQmx driver as outlined in the FD-11613/11614 Quick
Start.
Note You must install NI-DAQmx 18.1 or later for device calibration support.
2. Set up the FieldDAQ device as outlined in the FD-11613/11614 Quick Start.
3. Configure the FieldDAQ device in Measurement & Automation Explorer (NI MAX) as
outlined in the FD-11613/11614 Quick Start.
4. If the FieldDAQ device is not reserved automatically, select the device and click the
Reserve Network Device button. Refer to Reserving the Device in MAX for more
information.
5. Self-test your device in MAX by expanding Devices and Interfaces »Network Devices ,
right-clicking your FieldDAQ device, and selecting Self-Test. Self-test performs a brief
test to determine successful device installation. When the self-test finishes, a message
indicates successful verification or if an error occurred. If an error occurs, refer to ni.com/
support/daqmx.
Reserving the Device in MAX
When the FieldDAQ device is connected to a network, multiple users can access the device.
To perform any DAQ functionality on the device, including reset and self-test, you must
reserve the device in MAX. In MAX, an unreserved device or device reserved by another host
FD-11613/11614 Calibration Procedure | © National Instruments | 3

appears with an X and a reserved device appears as dark grey. Only one user at a time can
reserve the FieldDAQ device.
If the device was not reserved automatically after it was added (Add Device), you can reserve
the device in MAX by expanding Devices and Interfaces»Network Devices, selecting the
device, and clicking the Reserve Network Device button. The Override Reservation dialog
box opens when you attempt to explicitly reserve a device. Agreeing to override the
reservation forces the FieldDAQ device to be reserved by the current user.
Verification
The following performance verification procedures describe the sequence of operation and test
points required to verify the FieldDAQ device. The verification procedures assume that
adequate traceable uncertainties are available for the calibration references. Complete the
following procedure to determine the As-Found status of the FieldDAQ device.
1. Connect the calibrator to Bank 1 of the FieldDAQ device, as shown in the following
figure.
Figure 1. Bank 1 Voltage Channel Verification Connections
TC0+
TC0–
HI
LO
TC1+
TC1–
TC6+
TC6–
TC7+
TC7–
Calibrator
FD-11613/11614
TC2+
TC2–
TC3+
TC3–
TC4+
TC4–
TC5+
TC5–
Bank 1
2. On the calibrator, lock the voltage range to 3.3 V to reduce loading error.
a. Set the output voltage to 2.0 V.
b. Press the 3.3 V auto button to lock the 3.3 V range.
3. Set the calibrator output to a Test Point value indicated in the following table.
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Table 3. FD-11613/11614 Voltage Verification Test Limits for Positive and Negative Test
Points
ADC Timing
Mode
Range (mV) Test Point 1-Year Limits (mV)
Minimum Maximum Location
Value
(mV)
Lower
Limit
Upper
Limit
High
Resolution
-78.125 78.125 Negative FS -70 -70.030 -69.970
Positive FS 70 69.970 70.030
Best 50 Hz
Rejection
-78.125 78.125 Negative FS -70 -70.030 -69.970
Positive FS 70 69.970 70.030
Best 60 Hz
Rejection
-78.125 78.125 Negative FS -70 -70.030 -69.970
Positive FS 70 69.970 70.030
High Speed -78.125 78.125 Negative FS -70 -70.039 -69.961
Positive FS 70 69.961 70.039
The test limits in this table are derived using the values listed in Accuracy Under Calibration
Conditions.
4. Set the calibrator to Operate mode (OPR).
5. Acquire and average samples.
a. Create and configure an AI voltage channel on the FieldDAQ device according to
the following table.
Table 4. FD-11613/11614 Voltage Channel Configuration
Physical Channel
Input Range (mV)
Units Terminal ConfigurationMinimum Maximum
FD11613-Bank1/ai0:7 or
FD11614-Bank1/ai0:7
-78.125 78.125 Volts Differential
b. Configure the AI voltage channel timing according to the following table.
Table 5. FD-11613/11614 Voltage Channel Timing Configuration
ADC Timing Mode Sample Mode Samples to Read Rate (S/s) Timeout (s)
High Resolution Finite 20 1.8 30
Best 50 Hz Rejection Finite 80 7.1 30
Best 60 Hz Rejection Finite 100 8.3 30
High Speed Finite 1,000 85 30
c. Start the task.
FD-11613/11614 Calibration Procedure | © National Instruments | 5

d. Read the samples and average the readings.
e. Clear the task.
6. Set the calibrator to Standby mode (STBY).
7. Compare the average to the limits in Table 3.
8. Repeat steps 3 through 7 for each test point.
9. Repeat steps 3 through 8 for each ADC timing mode on the FieldDAQ device (High
Resolution, Best 50 Hz Rejection, Best 60 Hz Rejection, and High Speed).
10. Disconnect the calibrator from the FieldDAQ device.
11. Short all TC+ and TC- terminals on the FieldDAQ device together.
12. Acquire and average samples.
a. Create and configure an AI voltage channel on the FieldDAQ device according to
Table 3.
b. Configure the AI voltage channel timing according to Table 4.
c. Start the task.
d. Read the samples from each channel and average the readings.
e. Clear the task.
13. Compare the average to the limits in the following table.
Table 6. FD-11613/11614 Voltage Verification Test Limits for Zero Test Points
ADC Timing
Mode
Range (mV) Test Point 1-Year Limits (mV)
Minimum Maximum Location
Value
(mV)
Lower
Limit
Upper
Limit
High
Resolution
-78.125 78.125 Zero 0 -0.0044 0.0044
Best 50 Hz
Rejection
-78.125 78.125 Zero 0 -0.0045 0.0045
Best 60 Hz
Rejection
-78.125 78.125 Zero 0 -0.0045 0.0045
High Speed -78.125 78.125 Zero 0 -0.0049 0.0049
The test limits in this table are derived using the values listed in Accuracy Under Calibration
Conditions.
14. Repeat steps 12 through 13 for each ADC timing mode on the FieldDAQ device.
15. Disconnect the short from the TC channels.
16. (FD-11614) Connect the calibrator to Bank 2 of the FD-11614, as shown in the following
figure.
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Figure 2. Bank 2 Voltage Channel Verification Connections
TC0+
TC0–
HI
LO
TC1+
TC1–
TC6+
TC6–
TC7+
TC7–
Calibrator
FD-11614
TC2+
TC2–
TC3+
TC3–
TC4+
TC4–
TC5+
TC5–
Bank 2
17. (FD-11614) Complete Steps 2 through 15 for Bank 2 using FD11614-Bank2/ai0:7 as the
physical channel.
Adjustment
Complete the following procedure to adjust the voltage accuracy of the FieldDAQ device.
1. Connect the calibrator to Bank 1 of the FieldDAQ device, as shown in the following
figure.
Figure 3. Bank 1 Voltage Channel Adjustment Connections
TC0+
TC0–
HI
LO
TC1+
TC1–
TC6+
TC6–
TC7+
TC7–
Calibrator
FD-11613/11614
TC2+
TC2–
TC3+
TC3–
TC4+
TC4–
TC5+
TC5–
Bank 1
2. Initialize a calibration session on the FieldDAQ device. The default password is NI.
3. Adjust the FieldDAQ device voltage.
a. Input the ambient temperature in degrees Celsius using the Set Temperature
FieldDAQ function.
b. Call the DAQmx Get 11613 Calibration Adjustment Points or DAQmx Get 11614
Calibration Adjustment Points function.
FD-11613/11614 Calibration Procedure | © National Instruments | 7

c. On the calibrator, lock the voltage range to 3.3 V to reduce loading error.
d. Set the calibrator to the first reference value determined by the array of adjustment
points.
e. Set the calibrator to Operate mode (OPR).
f. Call and configure the DAQmx Adjust 11613 Calibration or DAQmx Adjust 11614
Calibration function according to the following table.
Table 7. Voltage Adjustment Configuration
Physical Channel Reference Value
FD11613-Bank1/ai0:7 or
FD11614-Bank1/ai0:7
A reference value from the array of
adjustment points
g. Set the calibrator to Standby mode (STBY).
h. Repeat steps d through g for each reference value in the array of adjustment points.
4. Disconnect the calibrator from the FieldDAQ device.
5. (FD-11614) Connect the calibrator to Bank 2 of the FD-11614, as shown in the following
figure.
Figure 4. Bank 2 Voltage Channel Adjustment Connections
TC0+
TC0–
HI
LO
TC1+
TC1–
TC6+
TC6–
TC7+
TC7–
Calibrator
FD-11614
TC2+
TC2–
TC3+
TC3–
TC4+
TC4–
TC5+
TC5–
Bank 2
6. (FD-11614) Without closing the Bank 1 session, complete Steps 2 through 4 for Bank 2
using FD11614-Bank2/ai0:7 as the physical channel.
7. (FD-11613) Close and commit the calibration session.
(FD-11614) Close and commit both calibration sessions.
EEPROM Update
When an adjustment procedure is completed, the FieldDAQ device internal calibration
memory (EEPROM) is immediately updated.
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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 Verification 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 Test Conditions before returning your device to
NI. Refer to Where to Go for Support 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 at ni.com/manuals.
FD-11613/11614 Calibration Procedure | © National Instruments | 9

Where to Go for Support
The National Instruments website is your complete resource for technical support. At ni.com/
support you have access to everything from troubleshooting and application development self-
help resources to email and phone assistance from NI Application Engineers.
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telephone support outside the United States, visit the Worldwide Offices section of ni.com/
niglobal to access the branch office websites, which provide up-to-date contact information,
support phone numbers, email addresses, and current events.
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software, the patents.txt file on your media, or the National Instruments Patent Notice at ni.com/patents. You can find
information about end-user license agreements (EULAs) and third-party legal notices in the readme file for your NI product. Refer
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377491A-01 November 12, 2019