Last Revised: 2013-03-08 13:35:15.0
Integrated Signal Conditioning
By combining signal conditioning and analog-to-digital converters (ADCs) on the same device, the NI PXIe-4357 RTD input module delivers a smaller footprint and higher measurement performance. Integrated signal conditioning also provides simplified cable management and calibration due to fewer components, which drastically reduces the installation and maintenance cost of a high-channel-count measurement system.
PXI Express Dedicated Data Throughput
NI SC Express modules are built on the x1 PXI Express bus with dedicated bandwidth per device up to 250 MB/s. Because of the added bandwidth provided by PXI Express, SC Express modules offer simultaneous sampling options using the same channel counts and connectivity as multiplexed devices. Unlike multiplexed devices that reduce sampling rates, you can use simultaneous sampling devices to maintain sampling rates as you expand the number of channels.
PXI Platform Advanced Timing and Synchronization
PXI Express provides advanced timing and synchronization features, including a 100 MHz differential system clock, differential signaling, and differential star triggers. By using differential clocking and synchronization, PXI Express systems benefit from increased noise immunity for instrumentation clocks and the ability to transmit at higher frequency rates. SC Express modules take advantage of PXI Express to deliver tight synchronization between modules in one chassis or multiple chassis.
Wide Variety of I/O on the PXI Platform
When combined with the more than 1,500 I/O types in the PXI platform, this module offers the flexibility to develop a measurement system that meets your application needs. PXI modules are compatible with the CompactPCI and CompactPCI Express industrial computer standards and offer additional features such as environmental specifications, standardized software, and built-in timing and synchronization.
The NI PXIe-4357 is designed to be used with the TB-4357 front mount terminal block. The TB-4357 provides screw terminal connectivity for 2-, 3-, and 4-wire RTDs. SC Express terminal blocks are hot-swappable and automatically recognized in software. This makes troubleshooting easier because you can connect and remove terminal blocks without powering down the PXI measurement system. Each terminal block also includes alignment fins that guide the connector onto the PXI Express module to minimize the risk of bent pins.
LabVIEW Professional Development System for Windows
NI LabVIEW Real-Time Module
NI system assurance programs are designed to make it even easier for you to own an NI system. These programs include configuration and deployment services for your NI PXI, CompactRIO, or Compact FieldPoint system. The NI Basic System Assurance Program provides a simple integration test and ensures that your system is delivered completely assembled in one box. When you configure your system with the NI Standard System Assurance Program, you can select from available NI system driver sets and application development environments to create customized, reorderable software configurations. Your system arrives fully assembled and tested in one box with your software preinstalled. When you order your system with the standard program, you also receive system-specific documentation including a bill of materials, an integration test report, a recommended maintenance plan, and frequently asked question documents. Finally, the standard program reduces the total cost of owning an NI system by providing three years of warranty coverage and calibration service. Use the online product advisors at ni.com/advisor to find a system assurance program to meet your needs.
NI measurement hardware is calibrated to ensure measurement accuracy and verify that the device meets its published specifications. To ensure the ongoing accuracy of your measurement hardware, NI offers basic or detailed recalibration service that provides ongoing ISO 9001 audit compliance and confidence in your measurements. To learn more about NI calibration services or to locate a qualified service center near you, contact your local sales office or visit ni.com/calibration.
Get answers to your technical questions using the following National Instruments resources.
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This document lists specifications for the NI PXIe-4357 module. These specifications are typical for the range of 0 °C to 55 °C unless otherwise stated. The system must be allowed to warm up for 15 minutes to achieve the rated accuracy. All specifications are subject to change without notice. Visit ni com/manuals for the most current specifications and product documentation.
Caution Refer to the Read Me First: Safety and Electromagnetic Compatibility document for important safety and electromagnetic compatibility information. To obtain a copy of this document online, visit ni.com/manuals, and search for the document title.
Caution To ensure the specified EMC performance, operate this product only with shielded cables and accessories.
Note Keep the filler panels on all unused slots in your chassis to maintain forced air cooling.
Number of channels
|20 RTD channels|
Type of ADC
Maximum sample rate
|100 S/s (Refer to Timing for more details.)|
|–200 °C to 850 °C, PT100 RTD|
|0 Ω to 400 Ω|
|0.9 mA per channel|
50/60 Hz noise rejection
|DC linearity||±15 ppm max|
|Common Mode Voltage Range|
Common Mode Rejection Ratio (CMRR)
COM-to-earth ground at DC, 50/60 Hz
|1 mΩ/Vcm, –120 dB|
|Between any AI± or EX±
(except between two EX– pins)
|Between any two EX– pins||None|
|Between RSVD lines and any other pin||None|
|Timing Modes*||Input Noise (mΩrms)|
|3-Wire||2- and 4-Wire|
|1 (High Resolution)||0.10||0.05|
|9 (High Speed)||2.2||1.12|
|* Refer to the Timing section for more information about ADC timing modes.|
|Offset stability||100 μΩ/°C||960 μΩ/°C|
|Gain stability||4 ppm/°C||9 ppm/°C|
|Temperature Measurement Accuracy|
|The following RTD measurement table shows the accuracy for PT100 RTDs under the following conditions:
• Scaling from resistance to °C is performed using the Callendar-Van Dusen equation with
the following constants:
– R0 = 100
– A = 3.908 × 10–3
– B = 5.775 × 10–7
– C = 4.183 × 10–12
• The module is connected to a TB-4357.
• Accuracies do not include the accuracy of the RTD itself
• The accuracy tables are valid for 1 year from the last calibration and include all measurement errors of the module and the terminal block, excluding noise.
• The 3-wire and 2-wire accuracy specifications are inclusive of 10 meter 24 gage lead wires.
• The 3-wire accuracy specification assumes lead wire resistances are matched to within 5%.
|RTD Measurement Accuracy (°C)|
|Mode||Operating Temperature||-200 °C||-100 °C||0 °C||100 °C||300 °C||500 °C||700 °C||850 °C|
|4-Wire Mode*||Typical 23 °C ±5 °C||0.03||0.05||0.07||0.09||0.13||0.18||0.24||0.28|
|Max 23 °C ±5 °C||0.09||0.14||0.18||0.22||0.32||0.41||0.52||0.61|
|Max 0 °C - 55 °C||0.16||0.24||0.31||0.38||0.53||0.70||0.88||1.02|
|3-Wire Mode†||Typical 23 °C ±5 °C||0.12||0.15||0.17||0.20||0.25||0.30||0.37||0.42|
|Max 23 °C ±5 °C||0.19||0.24||0.29||0.33||0.43||0.54||0.65||0.75|
|Max 0 °C - 55 °C||0.26||0.34||0.41||0.49||0.65||0.82||1.01||1.16|
|2-Wire Mode||Typical 23 °C ±5 °C||3.10||3.33||3.47||3.59||3.87||4.17||4.52||4.82|
|Max 23 °C ±5 °C||3.17||3.42||3.58||3.73||4.05||4.40||4.81||5.15|
|Max 0 °C - 55 °C||3.24||3.52||3.71||3.89||4.26||4.69||5.16||5.56|
|* The accuracies listed are valid for timing modes up to and including timing mode 5.
For timing modes higher than 5, include an additional 0.019 °C.
† The accuracies listed are valid for timing modes up to and including timing mode 7.
For timing modes higher than 7, include an additional 0.036 °C.
Note The maximum allowable sample rate is 100 S/s.
|ADC Timing Modes 2||ADC Conversion Time / Max Sample Rate (20 Channels)|
|1 (High Resolution)†||909 ms||0.275 S/s|
|2||556 ms||0.45 S/s|
|3||435 ms||0.575 S/s|
|4||84 ms||2.975 S/s|
|5||70 ms||3.55 S/s|
|6||29 ms||8.75 S/s|
|7||15 ms||17 S/s|
|8||5 ms||49 S/s|
|9 (High Speed)||2.5 ms||100 S/s|
|* Refer to the NI PXIe-4357 User Manual for more information about ADC timing modes.
† ADC Timing Mode 1 is the default setting for the On Demand timing mode when sample rate is not
|Source||PXI_TRIG <0..7>, PXI_STAR,
|Purpose||Start Trigger, Reference Trigger, Pause Trigger|
|Debounce filter settings||Disable, 90 ns, 5.12 μs, 2.56 ms, Custom interval|
|Source||Onboard Clock, PXI_Trig <0..7>, PXI_STAR,
PXIe_DSTAR <A..B>, PXIe_Clk100
|Destination||Sample Clock, Sample Clock Timebase, Reference Clock|
|Polarity||Software-selectable (except Reference Clock)|
|Debounce filter settings
(Sample clock only)
|Disable, 90 ns, 5.12 μs, 2.56 ms, Custom interval|
|Reference clock locking frequencies|
|Reference Signal||Locking Input Frequency (MHz)|
Note National Instruments does not recommend locking to non-selected frequencies.
|Output Timing Signals|
|Source||Start Trigger, Reference Trigger, Pause Trigger,
Sample Clock, Various derived timebases and
|Form factor||x1 PXI Express peripheral module, Specification v1.0 compliant|
|Slot compatibility||x1 and x4 PXI Express or PXI Express hybrid
|DMA channels||1, analog input|
|You can obtain the calibration certificate and information about calibration services for the NI PXIe-4357 at ni.com/calibration.|
|Recommended warm-up time||15 minutes|
|Calibration interval||1 year|
|+3.3 V||568 mA|
|+12 V||162 mA|
|Dimensions||Standard 3U PXIe,
16 cm × 10 cm (6.3 in. × 3.9 in.)
|Weight||145 g (5.1 oz)|
|I/O connector||96-pin male DIN 41612/IEC 60603-2 connector|
|Maximum altitude||2,000 m (800 mbar)|
|Indoor use only|
|Ambient temperature range||0 °C to 55 °C (Tested in accordance with IEC-60068-2-1 and IEC-60068-2-2. Meets MIL-PRF-28800F Class 3 low temperature limit and
MIL-PRF-28800F Class 2 high temperature
|Relative humidity range||10% to 90%, noncondensing
(Tested in accordance with IEC-60068-2-56.)
|Ambient temperature range||–40 °C to 71 °C (Tested in accordance with IEC-60068-2-1 and IEC-60068-2-2. Meets MIL-PRF-28800F Class 3 limits.)|
|Relative humidity range||5% to 95%, noncondensing
(Tested in accordance with IEC-60068-2-56.)
|Shock and Vibration|
|Operating shock||30 g peak, half-sine, 11 ms pulse
(Tested in accordance with IEC-60068-2-27.
Meets MIL-PRF-28800F Class 2 limits.)
|Operating||5 Hz to 500 Hz, 0.3 grms|
|Non-operating||5 Hz to 500 Hz, 2.4 grms
(Tested in accordance with IEC-60068-2-64.
Nonoperating test profile exceeds the
requirements of MIL-PRF-28800F, Class 3.)
|Continuous||60 VDC, Measurement Category I|
|Withstand||1,000 Vrms, verified by a 5 s dielectric withstand
Measurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system referred to as MAINS voltage. MAINS is a hazardous live electrical supply system that powers equipment. This category is for measurements of voltages from specially protected secondary circuits. Such voltage measurements include signal levels, special equipment, limited-energy parts of equipment.
Caution Do not connect the NI PXIe-4357 to signals or use for measurements within Measurement Categories II, III, or IV.
Caution The protection provided by the NI PXIe-4357 can be impaired if it is used in a manner not described in this document.
This product meets the requirements of the following standards of safety for electrical equipment
Note For UL and other safety certifications, refer to the product label or the Online Product Certification section.
This product meets the requirements of the following EMC standards for electrical equipment
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 generates radio frequency energy for the treatment of material or inspection/analysis purposes.
Note For EMC declarations and certifications, and additional information, refer to the Online Product Certification section.
This product meets the essential requirements of applicable European Directives as follows:
• 2006/95/EC; Low-Voltage Directive (safety)
• 2004/108/EC; Electromagnetic Compatibility Directive (EMC)
|Online Product Certification|
|Refer to the product Declaration of Conformity (DoC) for additional regulatory compliance information. To obtain product certifications and the DoC for this product, visit ni.com/ certification, search by model number or product line, and click the appropriate link in the Certification column.|
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.
|Waste Electrical and Electronic Equipment (WEEE)|
EU Customers At the end of the product life cycle, all products must be sent to a WEEE recycling center. For more information about WEEE recycling centers, National Instruments WEEE initiatives, and compliance with WEEE Directive 2002/96/EC on Waste and Electronic Equipment, visit ni.com/environment/ weee.
|Where to Go for Support|
The National Instruments Web site is your complete resource for technical support. At ni.com/support you have access to everything from troubleshooting and application development self-help resources to email and phone assistance from NI Application Engineers.
National Instruments corporate headquarters is located at 11500 North Mopac Expressway, Austin, Texas, 78759-3504. National Instruments also has offices located around the world to help address your support needs. For telephone support in the United States, create your service request at ni com/support and follow the calling instructions or dial 512 795 8248. For telephone support outside the United States, visit the Worldwide Offices section of ni.com/niglobal to access the branch office Web sites, which provide up-to-date contact information, support phone numbers, email addresses, and current events.
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