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Related Manuals for National Instruments NI-9225
Summary of Contents for National Instruments NI-9225
- Page 1 NI-9225...
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Page 2: Table Of Contents
NI 9225 3-Channel, 300 Vrms, 24-Bit, Simultaneous, Channel-to-Channel Isolated Analog Input Module Français Deutsch ni.com/manuals This document contains the verification and adjustment procedures for the National Instruments 9225. For more information about calibration solutions, visit ni.com/calibration Contents Software............................ 1 Documentation.......................... 2 Test Equipment......................... -
Page 3: Documentation
Documentation Consult the following documents for information about the NI 9225, NI-DAQmx, and your application software. All documents are available on and help files install with the ni.com software. NI cDAQ-9174/9178 Quick Start Guide NI-DAQmx installation and hardware setup NI 9225 Operating Instructions and Specifications NI 9225 specific information, specifications, and calibration interval NI-DAQmx Readme Operating system and application software support in NI-DAQmx... -
Page 4: Test Equipment
• Keep relative humidity below 80%. • Allow a warm-up time of at least 10 minutes to ensure that the NI 9225 measurement circuitry is at a stable operating temperature. NI 9225 Calibration Procedure | © National Instruments | 3... -
Page 5: Initial Setup
Initial Setup Complete the following steps to set up the NI 9225. Install NI-DAQmx. Make sure the NI cDAQ-9178 power source is not connected. Connect the NI cDAQ-9178 to the system safety ground. Attach a ring lug to a 14 AWG (1.6 mm) wire. Connect the ring lug to the ground terminal on the side of the NI cDAQ-9178 using the ground screw. -
Page 6: Accuracy Verification
Table 3. NI 9225 Voltage Task Timing Configuration for Phase Matching Sample Mode Samples Per Channel Rate (kS/s) Finite Samples 4167 Start the task. Read samples from the NI 9225. Average the samples. Stop the task. Clear the task. NI 9225 Calibration Procedure | © National Instruments | 5... -
Page 7: Gain Matching Verification
Compare the per-channel averages to the limits in Table 4. Set the calibrator to Standby mode (STBY). Repeat steps 3 through 7 for each test point in Table 4. Disconnect the calibrator from the device. Table 4. NI 9225 Verification Test Limits for Accuracy Range Test Point 1-Year Limits... - Page 8 If the Gain Matching verification procedure determines that the NI 9225 is outside of the limits, refer to Where to Go for Support for assistance in returning the device to NI. NI 9225 Calibration Procedure | © National Instruments | 7...
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Page 9: Phase Matching Verification
Phase Matching Verification Complete the following procedure to determine the As-Found status of the NI 9225. Connect the NI 9225 to the function generator as shown in Figure 3. Figure 3. Phase Matching Verification Connections – Function Generator – – NI 9225 Configure function generator according to Table 8. -
Page 10: Adjustment
Call and configure the NI 9225 adjustment function according to Table 12. Table 12. Adjustment Configuration Physical Channel Reference Value cDAQMod8/aix The actual value of the voltage output of the calibrator Set the calibrator to Standby mode (STBY). NI 9225 Calibration Procedure | © National Instruments | 9... -
Page 11: Eeprom Update
Repeat steps d through g for each point in the array. Close the calibration session. Disconnect the NI 9225 from the calibrator. EEPROM Update When an adjustment procedure is completed, the NI 9225 internal calibration memory (EEPROM) is immediately updated. If you do not want to perform an adjustment, you can update the calibration date and onboard calibration temperature without making any adjustments by initializing an external calibration, setting the C Series calibration temperature, and closing the external calibration. -
Page 12: Where To Go For Support
NI product. Refer to the Export Compliance Information at ni.com/legal/export-compliance for the National Instruments global trade compliance policy and how to obtain relevant HTS codes, ECCNs, and other import/export data. NI MAKES NO EXPRESS OR IMPLIED WARRANTIES AS TO THE ACCURACY OF THE INFORMATION CONTAINED HEREIN AND SHALL NOT BE LIABLE FOR ANY ERRORS.
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