National Instruments PXIe-4480 Manual
CALIBRATION PROCEDURE
PXIe-4480/4481
6-Channel, 24-bit, 1.25 MS/s DSA Analog Input
This document contains the verification and adjustment procedures for the PXIe-4480 and
PXIe-4481 Dynamic Signal Acquisition (DSA) analog input modules. The procedures for the
PXIe-4481 are a subset of those for the PXIe-4480, specifically with regards to the absence of
the charge measurement function, which is available on the PXIe-4480, but not the PXIe-4481.
However, for clarity, the adjustment procedures for each module are listed separately. For more
information about calibration solutions, visit ni.com/calibration.
Contents
Software.................................................................................................................................... 1
Documentation.......................................................................................................................... 2
Test Equipment......................................................................................................................... 3
Connecting the PXIe-4480/4481 .............................................................................................. 6
Test Conditions......................................................................................................................... 12
Initial Setup............................................................................................................................... 12
Verification............................................................................................................................... 12
Adjustment (PXIe-4480) .......................................................................................................... 21
Adjustment (PXIe-4481) .......................................................................................................... 28
Reverification ........................................................................................................................... 33
Updating the Calibration Date without Performing Adjustment.............................................. 33
Specifications............................................................................................................................ 33
Where to Go for Support .......................................................................................................... 34
Software
Calibrating the PXIe-4480/4481 requires the installation of NI-DAQmx on the calibration
system. NI-DAQmx 16.1 added driver support for the PXIe-4480/4481. 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 |NI PXIe-4480//4481 Calibration Procedure
Documentation
Consult the following documents for information about the PXIe-4480/4481, NI-DAQmx, and
your application software. All documents are available on ni.com and help files install with the
software.
PXIe-4480/4481 Getting Started Guide
NI-DAQmx driver software installation and hardware setup
PXIe-4480/4481 Specifications
PXIe-4480/4481 specifications and calibration interval
DAQ Getting Started Guide for PXI/PXI Express
Information about hardware and software installation, device configuration, and
programming
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
NI PXIe-4480/4481 Calibration Procedure |© National Instruments |3
Test Equipment
Table 1 lists the equipment recommended for the performance verification and adjustment
procedures for the PXIe-4480. Table 2 lists the same for the PXIe-4481. If the recommended
equipment is not available, select a substitute using the minimum requirements listed in the
table.
Table 1. Recommended Equipment (PXIe-4480)
Equipment
Recommended
Model(s) Where Used
Minimum
Requirements
Calibrator Fluke 5700A AI Gain Frequency Range:
40 Hz to 200 kHz
Voltage Range:
up to 6.3 Vrms
ACV Accuracy:
40 Hz: 0.017%
1 kHz: 0.016%
20 kHz: 0.017%
50 kHz: 0.037%
100 kHz: 0.086%
200 kHz: 0.32%
Function Generator Keysight (Agilent)
33250A series
Timebase
Frequency
Frequency Range:
up to 90 kHz
Frequency Accuracy:
2ppm
Voltage Range:
up to 9 Vpk
Digital Multimeter PXI-4070 IEPE Current Current Accuracy:
0.9%
InfiniBand 12X-6BNC
Cable
National
Instruments
SHB12X-6BNC
All N/A
BNC Shorting Cap
(quantity 6)
Pomona
Electronics 5085
or
Pomona
Electronics
3840-50
AI Offset Resistance: ≤50 Ω
4|ni.com |NI PXIe-4480//4481 Calibration Procedure
BNC (F) to Banana Plug
Adapter
Pomona
Electronics 1269
AI Gain N/A
BNC (M) Cable*
(quantity 1 minimum,
11 maximum)
Pomona
Electronics 5697
AI Gain Characteristic
Impedance: 50 Ω
BNC F-F-F T-Connector*
(quantity 0 minimum,
5 maximum)
Pomona
Electronics 3284
AI Gain Characteristic
Impedance: 50 Ω
Calibration Capacitor†Meggitt Endevco
2947C
Charge Gain 1000 pF 1% C0G,
calibrated to 0.1%
10-32 (M) to BNC (M)
Interface Cable†
PCB Piezotronics
002C03
Charge Gain N/A
*AI Gain verification and adjustment can be conducted one channel at a time, all six channels
simultaneously, as well as any number in between. The minimum quantity corresponds to one channel
at a time. The maximum quantity corresponds to all six channels simultaneously.
†Charge verification/adjustment is optional.
Table 1. Recommended Equipment (PXIe-4480) (Continued)
Equipment
Recommended
Model(s) Where Used
Minimum
Requirements
NI PXIe-4480/4481 Calibration Procedure |© National Instruments |5
Table 2. Recommended Equipment (PXIe-4481)
Equipment
Recommended
Model(s) Where Used
Minimum
Requirements
Calibrator Fluke 5700A AI Gain Frequency Range:
40 Hz to 200 kHz
Voltage Range:
up to 6.3 Vrms
ACV Accuracy:
40 Hz: 0.017%
1 kHz: 0.016%
20 kHz: 0.017%
50 kHz: 0.037%
100 kHz: 0.086%
200 kHz: 0.32%
Function Generator Keysight (Agilent)
33250A series
Timebase
Frequency
Frequency Range:
up to 90 kHz
Frequency Accuracy:
2ppm
Voltage Range:
up to 9 Vpk
InfiniBand 12X-6BNC
Cable
National
Instruments
SHB12X-6BNC
All N/A
BNC Shorting Cap
(quantity 6)
Pomona
Electronics 5085
or
Pomona
Electronics
3840-50
AI Offset Resistance: ≤50 Ω
BNC (F) to Banana Plug
Adapter
Pomona
Electronics 1269
AI Gain N/A
6|ni.com |NI PXIe-4480//4481 Calibration Procedure
Connecting the PXIe-4480/4481
This section describes the options in connecting the PXIe-4480/4481 to the calibration
equipment.
Voltage Offset Accuracy Verification/Adjustment
Figure 1 illustrates the connections for voltage offset accuracy verification/adjustment.
Figure 1. Voltage Offset Accuracy Connections
Note Secure the cable to the module front panel using the cable connector
jackscrews.
BNC (M) Cable*
(quantity 1 minimum,
11 maximum)
Pomona
Electronics 5697
AI Gain Characteristic
Impedance: 50 Ω
BNC F-F-F T-Connector*
(quantity 0 minimum,
5 maximum)
Pomona
Electronics 3284
AI Gain Characteristic
Impedance: 50 Ω
*AI Gain verification and adjustment can be conducted one channel at a time, all six channels
simultaneously, as well as any number in between. The minimum quantity corresponds to one channel
at a time. The maximum quantity corresponds to all six channels simultaneously.
1 BNC Shorting Cap
2 InfiniBand 12X-6BNC Cable
3 PXIe-4480/4481
Table 2. Recommended Equipment (PXIe-4481) (Continued)
Equipment
Recommended
Model(s) Where Used
Minimum
Requirements
1
23
NI PXIe-4480/4481 Calibration Procedure |© National Instruments |7
Voltage Gain Accuracy Verification/Adjustment
Voltage gain verification and adjustment can be conducted one channel at a time, all six channels
simultaneously, as well as any number in between. Figure 2 illustrates the connections for
parallel channel operation, while Figure 3 illustrates the connections for sequential channel
operation.
Figure 2. Voltage Gain Accuracy/Flatness Connections (Six Channels)
Note Secure the cable to the module front panel using the cable connector
jackscrews.
1 Calibrator
2 Banana Plug Adapter
3 BNC Cable
4 BNC T-Connector
5 InfiniBand 12X-6BNC Cable
6 PXIe-4480/4481
1
32
6
5
4
8|ni.com |NI PXIe-4480//4481 Calibration Procedure
Figure 3. Voltage Gain Accuracy/Flatness Connections (One Channel)
Note Secure the cable to the module front panel using the cable connector
jackscrews.
1 Calibrator
2 Banana Plug Adapter
3 BNC Cable
4 InfiniBand 12X-6BNC Cable
5 PXIe-4480/4481
1
2
4 5
3
NI PXIe-4480/4481 Calibration Procedure |© National Instruments |9
Charge Gain Accuracy Verification/Adjustment
(PXIe-4480 only)
Charge gain verification and adjustment is conducted one channel at a time. Figure 4 illustrates
the connections for charge gain accuracy verification/adjustment.
Figure 4. Charge Gain Accuracy Connections
Note Secure the cable to the module front panel using the cable connector
jackscrews.
1 Calibrator
2 Banana Plug Adapter
3 10-32 to BNC Interface Cable
4 Calibration Capacitor
5 BNC Cable
6 InfiniBand 12X-6BNC Cable
7 PXIe-4480
1
2
3
6 7
54
10 |ni.com |NI PXIe-4480//4481 Calibration Procedure
IEPE Current Accuracy Verification (PXIe-4480 only)
Figure 5 illustrates the connections for IEPE current accuracy verification.
Figure 5. IEPE Current Accuracy Connections
Note Secure the cable to the module front panel using the cable connector
jackscrews.
1 Digital Multimeter
2 Banana Plug Adapter
3 BNC Cable
4 InfiniBand 12X-6BNC Cable
5 PXIe-4480
1
4 5
32
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