PXI-4495
Page 1: ...PXI 4495...
Page 2: ...n 12 Timebase Frequency Accuracy Verification Optional 14 Adjustment 15 Analog Input Adjustment for NI 4495 4496 4498 Devices 15 Analog Input Adjustment for NI 4492 4497 4499 Devices 17 Updating the C...
Page 3: ...at ni com manuals NI DAQmx Help includes information about creating applications that use NI DAQmx The DAQ Getting Started guides NI DAQmx C Reference Help and NI DAQmx Help are installed with NI DAQ...
Page 4: ...uracy 0 05 20 Hz to 95 kHz Function Generator Agilent 33250A Timebase frequency Frequency Range up to 10 kHz Frequency Accuracy 2 ppm Voltage Range up to 9 Vpk Voltage Source NI PXI 6233 AI DC coupled...
Page 5: ...t circuitry is at a stable operating temperature Allow a warm up time for all of the instruments and equipment according to the manufacturer instructions BNC Cable NI 4495 4496 4497 4498 4499 quantity...
Page 6: ...The NI 449x includes precise internal circuits and references used during self calibration to adjust for any errors caused by short term fluctuations in the environment Self calibration does not requi...
Page 7: ...verifying an NI 4492 4497 4499 and the coupling changes from DC to AC commit the configuration using the DAQmx Control Task VI and wait 5 seconds for the input to settle 4 Start the task 5 Acquire re...
Page 8: ...ng mode 8 Repeat steps 2 through 7 for each gain setting that your device supports Refer to Table 6 for the gain settings supported by NI 449x devices When performing step 2 adjust the gain parameter...
Page 9: ...tone with the amplitude and frequency listed in the 0 dB gain row of Table 7 Wait 5 seconds for the inputs to settle If verifying an NI 4492 4497 4499 configure the calibrator to generate a tone with...
Page 10: ...pled gain accuracy of channel AI 0 at the 0 dB gain setting at the 204 8 kS s sample rate 9 If verifying an NI 4496 4498 repeat steps 2 through 8 for each gain setting that your device supports Refer...
Page 11: ...ing verified AI Flatness Verification Complete the following steps to verify the AI flatness 1 Connect the output of the calibrator to channel AI 0 on the device 2 If verifying an NI 4495 4496 4498 co...
Page 12: ...ompare it to the appropriate limits in Table 14 The value of V1 kHz is the measured amplitude of the 1 kHz tone 10 Repeat steps 2 through 9 for each gain setting that your device supports Refer to Tab...
Page 13: ...entation of the voltage source for its connector pinout information Connect the digital multimeter voltage function in parallel with the voltage source output 2 Configure the voltage source to generat...
Page 14: ...to verify the DC coupled gain accuracy of channel AI 0 at the 0 dB gain setting at the 204 8 kS s sample rate Table 15 AI DC Coupled Gain Accuracy Limits Device Gain Voltage Source Output nominal As F...
Page 15: ...priately 9 Repeat steps 1 through 8 for all input channels on the device Connect the output of the voltage source to the channel being verified during step 1 In step 3 replace ai0 in the physical chan...
Page 16: ...and temperature in the EEPROM on the NI 449x device There are two different adjustment procedures One applies to the NI 4495 4496 4498 devices The other applies to the NI 4492 4497 4499 devices Analog...
Page 17: ...the DAQmx Adjust DSA AI Calibration Polymorphic VI as shown below LabVIEW Block Diagram NI DAQmx Function Call Call DAQmxInitExtCal with the following parameters deviceName Dev_name password NI calHan...
Page 18: ...he values found in Table 14 Analog Input Adjustment for NI 4492 4497 4499 Devices Complete the following steps to calibrate the analog input of an NI 4492 4497 4499 device 1 Connect the output of the...
Page 19: ...ttings supported by NI 449x devices When performing step 3 adjust the output of the calibrator based on the amplitude and frequency in Table 19 When performing step 4 adjust the gain and reference vol...
Page 20: ...g being calibrated where 0 for example represents 0 dB The coupling parameter is set to DC 9 Repeat steps 7 and 8 for each gain setting that your device supports Refer to Table 6 for the gain settings...
Page 21: ...5 and the values found in Table 14 Updating the Calibration Date and Time without Performing Adjustment You can update the calibration date and time without performing the adjustment procedure Complet...
Page 22: ...ccess to everything from troubleshooting and application development self help resources to email and phone assistance from NI Application Engineers A Declaration of Conformity DoC is our claim of com...
