National Instruments PXIe-4310 Manual

CALIBRATION PROCEDURE
PXIe-4310
8-channel, 16-bit, 400 kS/s/ch, Ch-Ch Isolated Analog Input Module
This document contains the verification and adjustment procedures for the PXIe-4310 module.
Note To maintain forced air cooling in the PXI Express system, refer to the
Maintain Forced-Air Cooling Note to Users.
Contents
Software.................................................................................................................................... 1
Documentation.......................................................................................................................... 2
PXIe-4310 Verification and Adjustment.................................................................................. 3
Test Equipment................................................................................................................. 3
Connecting the TB-4310 (10V)................................................................................ 4
Test Conditions.................................................................................................................5
Initial Setup....................................................................................................................... 5
Self-Calibration ........................................................................................................ 5
Checking Device Temperature Changes .................................................................. 6
Accuracy Verification....................................................................................................... 6
Adjustment........................................................................................................................ 8
Reverification ................................................................................................................... 9
Specifications............................................................................................................................ 9
Worldwide Support and Services ............................................................................................. 9
Software
Calibrating the PXIe-4310 requires the installation of NI-DAQmx on the calibration system.
Driver support for calibrating the PXIe-4310 was first available in NI-DAQmx 17.1. For the list
of devices supported by a specific release, refer to the NI-DAQmx Readme, available on the
version-specific download page or installation media.
You can download NI-DAQmx from ni.com/downloads. NI-DAQmx supports 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.

2|ni.com |PXIe-4310 Calibration Procedure
Documentation
Consult the following documents for information about the PXIe-4310, NI-DAQmx, and your
application software. All documents are available on ni.com, and help files install with the
software.
PXIe-4310 and TB-4310 (10V)/TB-4310 (600V) Getting Started Guide and Terminal Block
Specifications
NI-DAQmx driver software installation and hardware setup.
PXIe-4310 User Manual
PXIe-4310 usage and reference information.
PXIe-4310 Specifications
PXIe-4310 specifications and calibration interval.
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.
LabVIEW Help
LabVIEW programming concepts and reference information about NI-DAQmx VIs and
functions.
NI-DAQmx C Reference Help
Reference information for NI-DAQmx C functions and NI-DAQmx C properties.
NI-DAQmx .NET Help Support for Visual Studio
Reference information for NI-DAQmx .NET methods and NI-DAQmx .NET properties, key
concepts, and a C enum to .NET enum mapping table.

PXIe-4310 Calibration Procedure |© National Instruments |3
PXIe-4310 Verification and Adjustment
This section provides information for verifying and adjusting the PXIe-4310.
Test Equipment
Table 1 lists the equipment recommended for the performance verification procedures of the
PXIe-4310. If the recommended equipment is not available, select a substitute using the
requirements listed in Table 1.
Table 1. Recommended Equipment for PXIe-4310 Verification
Equipment Recommended Model Requirements
Calibrator Fluke 5700A If this instrument is unavailable, use a
high-precision voltage source with an
accuracy of at least 15 ppm for
adjustment and verification. The
source needs an output range of at
least ± 10 V and an output impedance
of 50 .
PXI Express Chassis PXIe-1062Q If this chassis is unavailable, use
another PXI Express chassis, such as
the PXIe-1082 or PXIe-1078.
Connection Accessory TB-4310 (10V) —

4|ni.com |PXIe-4310 Calibration Procedure
Connecting the TB-4310 (10V)
The TB-4310 (10V) provides connections for the PXIe-4310. Figure 1 shows the pin
assignments of the TB-4310 (10V).
Figure 1. TB-4310 (10V) Circuit Board Parts Locator Diagram
Each channel consists of two terminal connections specific to that channel as shown in Table 2.
You can verify the accuracy for any or all channels depending on the desired test coverage.
Refer to Table 2 for the analog signal names of the TB-4310 (10V).
1 TB-4310 (10V) 2 To Calibrator + 3 To Calibrator -
Table 2. TB-4310 (10V) Analog Signal Names
Signal
Names Reference Direction Description
COM <0..7> — — Analog Input Isolated Ground—These
terminals are the reference point for
differential analog input measurements.
AI <0..7>+,
AI <0..7>-
COM <0..7> Input Analog Input Channels 0 to 7—AI+ and
AI- are the positive and negative inputs of
a differential analog input.
1
23
COPYRIGHT 2016
CFOR PATENTS: NI.COM/PATENTS UL 94V–0
TB — 4310
AI0–
AI0+
COM0
AI1–
AI1+
COM1
AI2–
AI2+
COM2
AI3–
AI3+
COM3
AI4–
AI4+
COM4
AI5–
AI5+
COM5
AI6–
AI6+
COM6
AI7–
AI7+
COM7/
PFI GND
PFI0
PFI1
C2
U2
C4
U3
R39
R40
CR2
U4
C1
U1
C3
C5
R33
R34 CR1
C6
R21 R24R18
R20 R23R17
R12 R15R9
R11 R14R8
R6R3
R5R2
J1 J2 J3 J4 J5 J6 J7 J9
R1 RP1 R4 RP2 R7 RP3 R10 RP4 R13 RP5 R16 RP6 R19 RP7 R22 RP8
C1 B1 A1
J10
J8
FRONT

PXIe-4310 Calibration Procedure |© National Instruments |5
Test Conditions
The following setup and environmental conditions are required to ensure the PXIe-4310 meets
published specifications.
• Review and become familiar with the entire procedure before beginning the calibration
process.
• Keep connections to the PXIe-4310 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 TB-4310 (10V) are secure.
• Use shielded copper wire for all cable connections to the TB-4310 (10V). Use twisted-pair
wire to eliminate noise and thermal offsets.
• Maintain an ambient temperature of 23 °C ±5 °C. The PXIe-4310 temperature will be
greater than the ambient temperature.
• Keep relative humidity below 80%.
• For valid test limits, maintain the device temperature within ±1 °C from the last
self-calibration and ±10 °C from the last external calibration. The device temperature will
be greater than the ambient temperature. Refer to the Checking Device Temperature
Changes section for more information about verification and adjustment temperatures and
temperature drift.
• Allow a warm-up time of at least 15 minutes to ensure that the PXIe-4310 measurement
circuitry is at a stable operating temperature.
• Ensure that the PXI/PXI Express chassis fan speed is set to HIGH, that the fan filters are
clean, and that the empty slots contain filler panels. For more information, refer to the
Maintain Forced-Air Cooling Note to Users document available at ni.com/manuals.
Initial Setup
Refer to the PXIe-4310 and TB-4310 (10V)/TB-4310 (600V) Getting Started Guide and
Terminal Block Specifications for information about how to install the software and hardware
and how to configure the device in NI Measurement & Automation Explorer (MAX).
Note When a device is configured in MAX, it is assigned a device identifier. Each
function call uses this identifier to determine which DAQ device to verify. This
document uses Dev1 to refer to the device name. In the following procedures, use the
device name as it appears in MAX.
Self-Calibration
A self-calibration must be performed before performing device verification. Perform a
self-calibration after the device has warmed up for the recommended time period of 15 minutes.
You can initiate self-calibration using MAX, by completing the following steps.
1. Launch MAX.
2. Select My System»Devices and Interfaces»PXIe-4310.

6|ni.com |PXIe-4310 Calibration Procedure
3. Initiate self-calibration using one of the following methods:
•ClickSelf-Calibrate in the upper right corner of MAX.
• Right-click NI PXIe-4310 and select Self-Calibrate from the drop-down menu.
Note Once self-calibration is completed, maintain the device temperature within
±1 °C of the self-calibration temperature.
Note NI recommends self-calibrating using MAX, although you can also
self-calibrate programmatically.
Checking Device Temperature Changes
Device temperature changes (greater than ±10 °C since the previous external calibration or
greater than ±1 °C since the previous self-calibration) can cause you to incorrectly verify and
adjust your device. After self-calibrating your device as described in the Self-Calibration
section, complete the following steps to compare the current device temperature to the
temperatures measured during the last self-calibration and external calibration in MAX.
1. Launch MAX.
2. Select My System»Devices and Interfaces»PXIe-4310.
3. Click the Settings tab. Temperature information is displayed in the Self-Calibration and
External Calibration sections of the Settings tab.
Accuracy Verification
This section provides instructions for verifying the PXIe-4310 specifications.
Throughout the verification process, use Table 4 to determine if your device needs to be
adjusted.
Since PXIe-4310 modules have many different ranges, you must check measurements for each
available range. You must perform verification on all ranges of all analog input channels of
PXIe-4310 modules in differential mode.
Note The test limits used in this document assume a maximum temperature drift of
±10 °C from the last external calibration, and a maximum temperature drift of ±1 °C
from the last self-calibration. Refer to the Checking Device Temperature Changes
section for more information and instructions on reading your device temperature and
comparing it against the device temperature during the last external calibration.
Complete the following steps to verify the analog input:
Note The TB-4310 (600V) cannot be used for verification or adjustment of the
PXIe-4310.
1. Connect the output of the calibrator to the TB-4310 (10V) as shown in Figure 1.
2. Connect the TB-4310 (10V) to the PXIe-4310.

PXIe-4310 Calibration Procedure |© National Instruments |7
Table 4 shows all acceptable values for the PXIe-4310. NI recommends that you verify all
ranges.
3. Set the calibrator voltage to the test value indicated in Table 4.
4. Create and configure a DAQmx task using the settings in Table 3. Set the range
corresponding to the selected test value from Table 4.
5. Start the acquisition.
6. Average the voltage values that you acquired.
7. Compare the resulting average to the upper and lower limits listed in Table 4. If the result
is between these values, the device passes the test.
8. Clear the acquisition task.
9. For each value in Table 4 repeat steps 3 through 8.
10. Disconnect the calibrator from the device.
You have finished verifying the analog input specification on your device.
Note If verification results are within the 24-Hour Limits listed in Table 4 an
adjustment is not required, but is still recommended. If you do not want to perform
an adjustment, you can update the calibration date without making any adjustments
by initializing an external calibration and closing the external calibration.
Table 3. AI Voltage Configuration
Configuration Value
Physical Channels Dev1/ai0:7
Sample Mode Finite number of samples.
Sample Clock Rate 100000
Samples per Channel 10000
Measurement Type Vo l t a g e
Units V
Terminal Configuration Differential
Sample Timing Type Sample Clock

8|ni.com |PXIe-4310 Calibration Procedure
Adjustment
Following the adjustment procedure automatically updates the calibration date and temperature,
and adjusts the analog input calibration constants and stores them in the EEPROM of the
PXIe-4310.
Complete the following steps to perform device adjustment using a calibrator:
1. Connect the output of the calibrator to the TB-4310 (10V) as shown in Figure 1.
2. Set your calibrator to output a voltage of 7.5 V.
3. Open an external calibration session on your device using the DAQmx Initialize External
Calibration function with the following parameters:
deviceName: Dev1
password1: NI
calHandle: &calHandle
4. Call the 4310 instance of the DAQmx Adjust SC Express Calibration function with the
following parameters:
calHandle: calHandle
referenceVoltage: 7.5
Table 4. PXIe-4310 Analog Input Values
Range (V) Test Point 24-Hour Limits 2-Year Limits
Min Max Location Value (V)
Lower
Limit (V)
Upper
Limit (V)
Lower
Limit (V)
Upper
Limit (V)
-10 10 Pos FS 9.980000 9.978177 9.981823 9.977508 9.982492
-10 10 Neg FS -9.980000 -9.981823 -9.978177 -9.982492 -9.977508
-5 5Neg FS -4.990000 -4.990947 -4.989053 -4.991276 -4.988724
-5 5Pos FS 4.990000 4.989053 4.990947 4.988724 4.991276
-2 2Pos FS 1.996000 1.995567 1.996433 1.995439 1.996561
-2 2Neg FS -1.996000 -1.996433 -1.995567 -1.996561 -1.995439
-1 1Neg FS -0.998000 -0.998265 -0.997735 -0.998323 -0.997677
-1 1Pos FS 0.998000 0.997735 0.998265 0.997677 0.998323
-10 10 0.000000 0.000000 -0.000765 0.000765 -0.000765 0.000765
-5 50.000000 0.000000 -0.000408 0.000408 -0.000408 0.000408
-2 20.000000 0.000000 -0.000207 0.000207 -0.000207 0.000207
-1 10.000000 0.000000 -0.000140 0.000140 -0.000140 0.000140
1 The default password is NI, which can be changed. Refer to the NI-DAQmx Help for details.

PXIe-4310 Calibration Procedure |© National Instruments |9
5. Save the adjustment constants to the EEPROM, using the DAQmx Close External
Calibration function with the following parameters:
calHandle: calHandle
action: DAQmx_Val_Action_Commit
This function also saves the date, time, and temperature of the adjustment to the onboard
memory.
Note If an error occurs during adjustment, no constants will be written to the
EEPROM.
6. Place the calibrator in Standby.
7. Disconnect the calibrator from the device.
The device is now adjusted with respect to your external source.
Reverification
Repeat the Accuracy Verification section using the 24-Hour Limits in Table 4 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 Test Conditions before returning your device to NI. Refer to Worldwide
Support and Services for assistance in returning the device to NI.
Specifications
Refer to the PXIe-4310 Specifications document for detailed PXIe-4310 specification information.
Worldwide Support and Services
The NI 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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NI corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas,
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contact.

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