PXI-4070 Specifications

PXI-4070 Specifications

These specifications apply to the PXI-4070.

All specifications are subject to change without notice.

Notice The protection provided by the PXI-4070 can be impaired if it is used in a manner not described in this document.

Definitions

Warranted specifications describe the performance of a model under stated operating conditions and are covered by the model warranty.

Characteristics describe values that are relevant to the use of the model under stated operating conditions but are not covered by the model warranty.

  • Typical specifications describe the performance met by a majority of models.
  • Nominal specifications describe an attribute that is based on design, conformance testing, or supplemental testing.

Specifications are Nominal unless otherwise noted.

Conditions

Specifications are valid under the following conditions unless otherwise noted.

  • Calibration interval of 2 years
  • Warm-up time of 1 hour
  • Resolution set to 6.5 digits for specifications requiring an aperture greater than or equal to 100 ms

PXI-4070 Pinout

Use the pinout to connect to terminals on the PXI-4070.



Table 1. Signal Descriptions
Item Description
1 HI
2 LO
3 HI Sense
4 LO Sense
5 AUX I/O Connector

DC Specifications

Table 2. PXI-4070 DC Speeds, Nominal
Digits Bits Max sampling rate[1]1 Maximum sampling rates refer to waveform acquisition in digitizer mode. (Digitizer) Reading rate[2]2 Auto Zero disabled, except 7 digits, measured on a 10 V and 10 kΩ range. (DMM)
7 23 5 S/s 5 S/s
6½ 22 100 S/s 100 S/s
5½ 18 5 kS/s 3 kS/s
4½ 15 20 kS/s 7 kS/s
3 10 1.8 MS/s N/A
Figure 1. DC Voltage Maximum Reading Rate, Nominal


DC System Speeds

Range or function change 100/s
Auto range time, DC V 5 ms
Auto range time, DC I 5 ms
Auto range time, resistance 50 ms
Trigger latency 2 μs
Maximum trigger rate 6 kHz

DC Accuracy Specifications

All DC accuracy specifications apply to 6½-digit resolution (≥1 PLC), Auto Zero and ADC calibration enabled.

Table 3. DC Voltage ± (ppm of reading + ppm of range)
Range Resolution Input resistance 24 hour[3]3 Relative to external calibration source. Tcal ±1 °C 90 day[4]4 Using internal self-calibration; specifications valid over the entire operating temperature range. Tcal±5 °C 2 year[5]5 Using internal self-calibration; specifications valid over the entire operating temperature range. Tcal±5 °C Tempco/°C (0 °C to 55 °C)
Without Self-cal With Self-cal
100 mV [6]6 With offset nulling and 100 ms aperture. 100 nV
  • >10 GΩ
  • 10 MΩ, nominal
10 + 10 30 + 20 40 + 20 4 + 5 0.3 + 0.3
1 V 1 μV
  • >10 GΩ
  • 10 MΩ, nominal
6 + 2 20 + 6 25 + 6 2 + 1 0.3 + 0.3
10 V 10 μV
  • >10 GΩ
  • 10 MΩ, nominal
4 + 2 20 + 6 25 + 6 1 + 1 0.3 + 0.3
100 V 100 μV 10 MΩ, nominal 6 + 2 30 + 6 35 + 6 4 + 1 0.3 + 0.3
300 V 1 mV 10 MΩ, nominal 6 + 6 30 + 20 35 + 20 4 + 3 0.3 + 0.3
Table 4. DC Current ± (ppm of reading + ppm of range)
Range Resolution Burden voltage, typical Noise (ppm of range RMS) 2 year (0 °C to 55 °C) Tempco/°C (0 °C to 55 °C)
20 mA 10 nA <20 mV 20 400 + 150 8 + 1
200 mA 100 nA <200 mV 3 400 + 20 8 + 0.2
1 A 1 μA <800 mV 3 500 + 50 8 + 0.4
Note For DC current, typical 24 hour accuracy (23 °C±1 °C) is ±(50 ppm of reading + 5 ppm of range).
Table 5. Resistance (4-Wire and 2-Wire) ± (ppm of reading + ppm of range)
Range Test current[7]7 -10% to 0% tolerance. Max test voltage[8]8 Highest nominal voltage present with highest range resistance applied. Open circuit voltage[9]9 Nominal voltage present at output with no resistance load. 24 hour[10]10 Relative to external calibration source. Tcal ±1 °C 90 day[11]11 Using internal self-calibration; specifications valid over the entire operating temperature range. Tcal±5 °C 2 year[12]12 Using internal self-calibration; specifications valid over the entire operating temperature range. Tcal±5 °C Tempco/°C (0 °C to 55 °C)
Without Self-cal With Self-cal
100 Ω[13]13 With offset compensated ohms enabled. 1 mA 100 mV 11.5 15 + 10 50 + 10 80 + 10 8 + 1 0.8 + 1
1 kΩ[14]14 With offset compensated ohms enabled. 1 mA 1 V 11.5 12 + 2 50 + 3 80 + 3 8 + 0.1 0.8 + 0.1
10 kΩ[15]15 With offset compensated ohms enabled. 100 μA 1 V 12.2 12 + 2 50 + 3 80 + 3 8 + 0.1 0.8 + 0.1
100 kΩ 10 μA 1 V 12.2 15 + 2 50 + 6 80 + 6 8 + 0.5 0.8 + 0.5
1 MΩ 10 μA 10 V 12.2 20 + 2 60 + 10 90 + 10 8 + 1 0.8 + 1
10 MΩ 1 μA 10 V 12.2 100 + 2 200 + 10 400 + 10 30 + 3 30 + 3
100 MΩ [16]16 2-wire resistance measurement only. Typical accuracy is 5% between 105 MΩ and 1.05 GΩ. Use tempco outside 18 °C to 28 °C. 1 μA|| 10 MΩ 10 V 9.6 900 + 20 5,500 + 40 6,000 + 40 200 +10 200 + 10
Note For 2-wire resistance measurements, perform offset nulling or add 200 mΩ to reading.
Table 6. Diode Test
Range Resolution Test current[17]17 -10% to 0% tolerance. Accuracy
10 V 10 μV 1 μA, 10 μA, 100 μA, 1 mA[18]18 Up to 4.5 V measurement for 1 mA test current. Add 20 ppm of reading to 10 VDC voltage specifications.
Table 7. Additional Noise Errors for DC Voltage, Current, Resistance
Resolution Additional noise error
5½ digits 10 ppm of range
5 digits 30 ppm of range
4½ digits 100 ppm of range

DC Functions General Specifications

Effective CMRR (1 kΩ resistance in LO lead) >140 dB (DC), 100 ms aperture; >170 dB ( >46 Hz) with high-order DC noise rejection, 100 ms aperture
Maximum 4-wire lead resistance Use the lesser of 10% of range or 1 kΩ
Overrange 105% of range except 300 V and 1 A range
DC voltage input bias current <30 pA at 23 °C, typical
Table 8. Normal-Mode Rejection Ratio (NMRR)
Readings/s NMRR Conditions
10 >100 dB [19]19 With high-order DC noise rejection; 100 ms aperture. All noise sources >46 Hz
50 (60) >60 dB [20]20 With normal DC noise rejection; 20 ms (16.67 ms) aperture. 50 (60) Hz ±0.1%

Frequency and Period

Table 9. PXI-4070 Frequency and Period
Input range Frequency range Period range Resolution 2 year accuracy[21]21 0.00025% of reading, typical.0 °C to 55 °C± % of reading
50 mV to 300 V 1 Hz to 500 kHz 1 s to 2 μs 6½ digits 0.01
Note Frequency and period specifications have a 2 second gate time. The input signal must be >10% of AC voltage input range.

Temperature Accuracy Specifications (°C)

Note Tcal is the device temperature at last external calibration. For total measurement accuracy, add temperature probe error.
Table 10. Thermocouple Temperature Accuracy Specifications (°C)
Type Range 2 year Tcal±5 °C Tempco/°C[22]22 Tempco is the temperature coefficient, expressed in degrees of measurement uncertainty per degree change in DMM instrument operating temperature. Resolution
With Simulated Ref. Junction [23]23 Using simulated reference junction. With PXI-2527[24]24 Includes PXI-2527 with TB-2627 with a typical 0.5 °C CJC error and a typical thermal EMF offset of 2.5 μV for CJC temperatures between 15 °C and 35 °C. Add an additional 0.5 °C uncertainty when CJC is in the range 0-15 °C or 35-50 °C.
J -150 to 1200 0.3 1.0 0.03 0.1
-210 to -150 0.4 1.2 0.03 0.1
K -100 to 1200 0.4 1.0 0.03 0.1
-200 to -100 0.4 1.5 0.03 0.1
N -100 to 1300 0.3 1.0 0.03 0.1
-200 to -100 0.6 1.5 0.03 0.1
T -100 to 400 0.3 1.0 0.03 0.1
-200 to -100 0.4 1.5 0.03 0.1
E -150 to 1000 0.2 1.0 0.03 0.1
-200 to -150 0.3 1.5 0.03 0.1
R 300 to 1760 0.6 1.8 0.06 0.1
-50 to 300 1.4 1.9 0.06 0.1
S 400 to 1760 0.7 1.8 0.06 0.1
-50 to 400 1.3 1.8 0.06 0.1
B 1100 to 1820 0.6 1.8 0.09 0.1
400 to 1100 1.4 1.9 0.09 0.1
Table 11. RTD Temperature Accuracy Specifications (°C)
Range 2 year Tcal ±5 °C [25]25 Using simulated reference junction. Tempco/°C [26]26 Tempco is the temperature coefficient, expressed in degrees of measurement uncertainty per degree change in DMM instrument operating temperature. Resolution
-200 to 600 0.14 0.011 0.01
Note Based on RTD with RO = 100 Ω Pt3851 RTD in a 4-wire configuration, using lowest possible resistance range for each temperature. For total measurement accuracy, add temperature probe error.
Table 12. Thermistor Temperature Accuracy Specifications (°C)
Range 2 year Tcal ±5 °C [27]27 Using simulated reference junction. Tempco/°C [28]28 Tempco is the temperature coefficient, expressed in degrees of measurement uncertainty per degree change in DMM instrument operating temperature. Resolution
-80 to 150 0.08 0.002 0.01

Isolated Digitizer Specifications

Note All digitizer accuracy specifications apply to Auto Zero enabled, DC coupling, after self-calibration, and 1.8 MS/s sampling rate. For basic DC accuracy, refer to the DC voltage specifications and DC current specifications in the DC Specifications section.
Table 13. Voltage Mode
Range Input impedance,[29]29 In parallel with 150 pF. nominal Flatness error 20 kHz, typical Bandwidth (-3 dB), Typical[30]30 The AC coupling low frequency (-3 dB) point is 0.8 Hz. THD 1 kHz signal, -1 dBfs, typical THD 20 kHz signal, -1 dBfs, typical
100 mV >10 GΩ, 1 MΩ -0.03 dB 300 kHz -104 dB -78 dB
1 V >10 GΩ, 1 MΩ -0.03 dB 300 kHz -109 dB -83 dB
10 V >10 GΩ, 1 MΩ -0.03 dB 300 kHz -96 dB -70 dB
100 V 1 MΩ -0.03 dB 300 kHz -96 dB -70 dB
300 V 1 MΩ -0.03 dB 300 kHz -98 dB -72 dB
Table 14. Current Mode
Range Resolution Burden voltage, typical Flatness error 20 kHz, typical Bandwidth (-3 dB), typical
20 mA 10 nA <20 mV ±0.01 dB 430 kHz
200 mA 100 nA <200 mV ±0.01 dB 430 kHz
1 A 1 μA <800 mV ±0.01 dB 400 kHz

Acquisition System

Table 15. Sampling Rate and Record Duration
Available sampling rates
r ⁢ =   1.8 ⁢   M S / s y
, where y = 1, 2, 3,...1.8 × 105
Minimum record duration 8.89 μs
Maximum record duration 149 s
Record duration n/r, where n = number of samples, r = sampling rate
Variable resolution 10-23 bits; refer to Digitizer Maximum Sampling Rate graph
Available functions Voltage and current
Voltage ranges ±100 mV to ±300 V (DC or AC coupled)
Current ranges ±20 mA to ±1 A
Timebase accuracy 25 ppm
Table 16. Input Trigger
Latency[31]31 The latency specification value actually reflects negative latency due to sampling before the trigger. Can be reduced to near zero (with the jitter specification) or made positive in software by adding a trigger delay. 1.8 μs
Jitter <600 ns
Note Refer to Trigger Specifications for additional input trigger specifications.
Figure 2. Digitizer Maximum Sampling Rate, Nominal


General Specifications

Warm-up 1 hour to rated accuracy
Self-calibration Calibrates the FlexDMM relative to high-precision internal voltage and resistance standards. No external calibration equipment required.
External calibration interval 2 years recommended
Measurement category II
Table 17. Input Protection
Resistance, diode Up to 300 VDC
DC V, AC V Up to 300 VDC or ACrms, 450 V AC peak
DC I and AC I F 1.25 A250 V, fast-acting user-replaceable fuse
Maximum common-voltage range 300 VDC or ACrms

Trigger Specifications

Table 18. Trigger Specifications
Measurement complete trigger pulse width 3 μs
Input trigger pulse width 1 μs, with <2 m cable
Table 19. Trigger Voltage Levels
Vin High 2.0 V min
Vin Low 0.8 V max
Vout High 2.4 V min
Vout Low 0.4 V max
Table 20. Trigger Voltage Level Absolute Maximums
Vin High 5.5 V
Vin Low -0.5 V
Note Triggers are LVTTL/TTL compatible.
Note The AUX I/O connector on the PXI-4070 is not isolated. This connector is not referenced to the measurement circuit but is referenced to the ground of the PXI chassis. Do not operate the digital signals of this connector beyond -0.5 V to 5.5 V of the PXI chassis ground.

Power

Power consumption <12 W from PXI backplane

Physical Characteristics

Dimensions 3U, one-slot, PXI/cPCI module 2.0 cm × 13.0 cm × 21.6 cm (0.8 in. × 5.1 in. × 8.5 in.)
Weight 340 g (12 oz) , nominal
Note If you need to clean the device, wipe it with a dry towel.

Environment

Maximum altitude 2,000 m (at 25 °C ambient temperature)
Pollution degree 2
Indoor use only

Operating Environment

Ambient temperature range

0 °C to 55 °C (Tested in accordance with IEC 60068-2-1 and IEC 60068-2-2.)

Relative humidity range

Up to 95% RH at 40 °C, noncondensing

Storage Environment

Ambient temperature range -40 °C to 70 °C (Tested in accordance with IEC 60068-2-1 and IEC 60068-2-2.)
Relative humidity range 5% to 95%, noncondensing (Tested in accordance with IEC 60068-2-56.)

Shock and Vibration

Operational shock

30 g peak, half-sine, 11 ms pulse (Tested in accordance with IEC 60068-2-27. Test profile developed in accordance with MIL-PRF-28800F.)

Random vibration

Operating

5 Hz to 500 Hz, 0.31 grms (Tested in accordance with IEC 60068-2-64.)

Nonoperating

5 Hz to 500 Hz, 2.46 grms (Tested in accordance with IEC 60068-2-64. Test profile exceeds the requirements of MIL-PRF-28800F, Class 3.)

Compliance and Certifications

Safety Compliance Standards

This product is designed to meet the requirements of the following electrical equipment safety standards for measurement, control, and laboratory use:

  • IEC 61010-1, EN 61010-1
  • UL 61010-1, CSA C22.2 No. 61010-1
Note For safety certifications, refer to the product label or the Product Certifications and Declarations section.

Electromagnetic Compatibility

This product meets the requirements of the following EMC standards for electrical equipment for measurement, control, and laboratory use:
  • EN 61326-1 (IEC 61326-1): Class A emissions; Basic immunity
  • EN 55011 (CISPR 11): Group 1, Class A emissions
  • EN 55022 (CISPR 22): Class A emissions
  • EN 55024 (CISPR 24): Immunity
  • AS/NZS CISPR 11: Group 1, Class A emissions
  • AS/NZS CISPR 22: Class A emissions
  • FCC 47 CFR Part 15B: Class A emissions
  • ICES-001: Class A emissions
Note In the United States (per FCC 47 CFR), Class A equipment is intended for use in commercial, light-industrial, and heavy-industrial locations. In Europe, Canada, Australia, and New Zealand (per CISPR 11), Class A equipment is intended for use only in heavy-industrial locations.
Note Group 1 equipment (per CISPR 11) is any industrial, scientific, or medical equipment that does not intentionally generate radio frequency energy for the treatment of material or inspection/analysis purposes.
Note For EMC declarations, certifications, and additional information, refer to the Product Certifications and Declarations section.

Product Certifications and Declarations

Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for NI products, visit ni.com/product-certifications, search by model number, and click the appropriate link.

Environmental Management

NI is committed to designing and manufacturing products in an environmentally responsible manner. NI recognizes that eliminating certain hazardous substances from our products is beneficial to the environment and to NI customers.

For additional environmental information, refer to the Engineering a Healthy Planet web page at ni.com/environment. This page contains the environmental regulations and directives with which NI complies, as well as other environmental information not included in this document.

EU and UK Customers

  • Waste Electrical and Electronic Equipment (WEEE)—At the end of the product life cycle, all NI products must be disposed of according to local laws and regulations. For more information about how to recycle NI products in your region, visit ni.com/environment/weee.

    • 电子信息产品污染控制管理办法（中国RoHS）

  • 中国RoHS— NI符合中国电子信息产品中限制使用某些有害物质指令(RoHS)。关于NI中国RoHS合规性信息，请登录 ni.com/environment/rohs_china。(For information about China RoHS compliance, go to ni.com/environment/rohs_china.)

    • 1 Maximum sampling rates refer to waveform acquisition in digitizer mode.

    2 Auto Zero disabled, except 7 digits, measured on a 10 V and 10 kΩ range.

    3 Relative to external calibration source.

    4 Using internal self-calibration; specifications valid over the entire operating temperature range.

    5 Using internal self-calibration; specifications valid over the entire operating temperature range.

    6 With offset nulling and 100 ms aperture.

    7 -10% to 0% tolerance.

    8 Highest nominal voltage present with highest range resistance applied.

    9 Nominal voltage present at output with no resistance load.

    10 Relative to external calibration source.

    11 Using internal self-calibration; specifications valid over the entire operating temperature range.

    12 Using internal self-calibration; specifications valid over the entire operating temperature range.

    13 With offset compensated ohms enabled.

    14 With offset compensated ohms enabled.

    15 With offset compensated ohms enabled.

    16 2-wire resistance measurement only. Typical accuracy is 5% between 105 MΩ and 1.05 GΩ. Use tempco outside 18 °C to 28 °C.

    17 -10% to 0% tolerance.

    18 Up to 4.5 V measurement for 1 mA test current.

    19 With high-order DC noise rejection; 100 ms aperture.

    20 With normal DC noise rejection; 20 ms (16.67 ms) aperture.

    21 0.00025% of reading, typical.

    22 Tempco is the temperature coefficient, expressed in degrees of measurement uncertainty per degree change in DMM instrument operating temperature.

    23 Using simulated reference junction.

    24 Includes PXI-2527 with TB-2627 with a typical 0.5 °C CJC error and a typical thermal EMF offset of 2.5 μV for CJC temperatures between 15 °C and 35 °C. Add an additional 0.5 °C uncertainty when CJC is in the range 0-15 °C or 35-50 °C.

    25 Using simulated reference junction.

    26 Tempco is the temperature coefficient, expressed in degrees of measurement uncertainty per degree change in DMM instrument operating temperature.

    27 Using simulated reference junction.

    28 Tempco is the temperature coefficient, expressed in degrees of measurement uncertainty per degree change in DMM instrument operating temperature.

    29 In parallel with 150 pF.

    30 The AC coupling low frequency (-3 dB) point is 0.8 Hz.

    31 The latency specification value actually reflects negative latency due to sampling before the trigger. Can be reduced to near zero (with the jitter specification) or made positive in software by adding a trigger delay.