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NI 5105 Calibration Procedure

Calibration Executive 4.0 Help

Edition Date: March 2017

Part Number: 374564H-01

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This topic contains information for calibrating the National Instruments PXI/PXIe/PCI-5105 using Calibration Executive.

Calibration Executive Procedure Features:

Adjustment

Supported
Manual Mode

Supported
Selectable Test Points

Unsupported

Approximate Test Time: 60 minutes

Test Equipment|Test Conditions|Device Setup|Test Limit Equations

Test Equipment

The following table lists the test equipment required for calibrating the NI 5105.

InstrumentRecommended ModelParameter MeasuredMinimum Requirements
Scope Calibrator Fluke 9500B with
Fluke 9510 Test Head
DC Accuracy DC ±(0.025% + 25 mV) into 50 Ω and 1 MΩ
Bandwidth ±2% output amplitude flatness for leveled sine wave up to 60 MHz relative to 50 kHz into 50 Ω
Timing ±2 ppm frequency accuracy
Chassis PXI-1042,
PXI-1042Q
Use with PXI/PXI Express modules
BNC to SMB Adapter 50 Ω

Test Conditions

The following setup and environmental conditions are required to ensure the NI 5105 meets published specifications.

  • Always connect the calibrator test head directly to the input SMB of the digitizer using the BNC to SMB adapter. Long cables and wires act as antennas, picking up extra noise that can affect measurements.
    Note Note  Make sure the calibration test head has mechanical support to prevent unnecessary strain on the SMB connector of the digitizer.
  • Keep relative humidity between 10 and 90% non-condensing, or consult the digitizer hardware specifications for the optimum relative humidity.
  • Maintain an ambient temperature of 23 ±5 °C.
  • Allow a warm-up time of at least 15 minutes after the NI-SCOPE driver is loaded. Unless manually disabled, the NI-SCOPE driver automatically loads with the operating system and enables the device. The warm-up time ensures that the measurement circuitry of the NI 5105 is at a stable operating temperature.
  • Plug the PXI/PXI Express chassis or PC and the calibrator into the same power strip to avoid ground loops.
  • (PXI/PXIe) 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.

Device Setup

  1. Install the NI 5105 in the PXI/PXI Express chassis or PC according to the instructions in the NI High-Speed Digitizers Getting Started Guide.
  2. Configure the hardware using Measurement & Automation Explorer (MAX).
  3. Launch the Calibration Executive procedure and complete the setup wizard.
Note Note  If the NI 5105 module fails after calibration, return it to NI for repair or replacement.

Test Limit Equations

The following test limits are derived from the published specifications.

Vertical Offset

50 Ω Input Impedance (All Ranges)

(PXI/PXIe) TestLimits = TestValue ± (Range * 0.25% of FS +1.4 mV)

(PCI) TestLimits = TestValue ± (Range * 0.25% of FS +600 µV)

1 MΩ Input Impedance (All Ranges)

(PXI/PXIe) TestLimits = TestValue ± (Range * 0.25% of FS + 600 µV)

(PCI) TestLimits = TestValue ± (Range * 0.25% of FS + 1.4 mV)

Vertical Gain

50 Ω Input Impedance (All Ranges)

TestLimits = TestValue ± (TestValue * 1% of Input)

1 MΩ Input Impedance (50 mV Range)

TestLimits = TestValue ± (TestValue * 1% of Input)

1 MΩ Input Impedance (200 mV, 1 V, and 6 V Ranges)

TestLimits = TestValue ± (TestValue * 0.65% of Input)

1 MΩ Input Impedance (30 V Range)

TestLimits = TestValue ± (TestValue * 0.75% of Input)

Timing Accuracy

TestLimits = TestValue ± 25 ppm (Not Phase-Locked to Reference Clock)

Bandwidth

TestLimits = TestValue ± 3 dB


 

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