1. Manuals
  2. Brands
  3. National Instruments Manuals
  4. I/O Systems
  5. 9213E
  6. Operating instructions manual

National Instruments 9213E Operating Instructions Manual

16-channel thermocouple input module
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
OPERATING INSTRUCTIONS AND SPECIFICATIONS
NI 9213E
16-Channel Thermocouple Input Module

Advertisement

Table of Contents
loading

Related Manuals for National Instruments 9213E

Summary of Contents for National Instruments 9213E

  • Page 1 OPERATING INSTRUCTIONS AND SPECIFICATIONS NI 9213E 16-Channel Thermocouple Input Module...
  • Page 2 This document describes how to use the National Instruments 9213E and includes dimensions, terminal assignments, and specifications for the NI 9213E. Visit and enter ni.com/info rdsoftwareversion to determine which software you need for the modules you are using. For information about installing, configuring, and programming the system, refer to the system documentation.
  • Page 3 NI 9213E Dimensions The following figure shows the dimensions of the NI 9213E. 73.4 (2.89) 0.0 (0.00) Figure 1. NI 9213E Dimensions in Millimeters (Inches) © National Instruments Corp. NI 9213E Operating Instructions and Specifications...
  • Page 4 Connecting the NI 9213E The NI 9213E has a 36-terminal detachable spring-terminal connector that provides connections for 16 thermocouple channels. TC0+ – TC1+ – TC2+ – TC3+ – TC4+ – TC5+ – TC6+ – TC7+ – TC8+ – TC9+ –...
  • Page 5 The NI 9213E also has two common terminals, COM, that are internally connected to the isolated ground reference of the module. If you are using a shielded thermocouple, connect COM to the shield and the shield to a common-mode voltage reference of the thermocouple.
  • Page 6 Shield Thermocouple TC– NI 9213E reference Figure 3. Connecting a Shielded Thermocouple Input Signal to the NI 9213E NI 9213E Operating Instructions and Specifications ni.com...
  • Page 7 Refer to Figure 4 for an illustration of connecting wires to the NI 9213E. Figure 4. Connecting Wires to the NI 9213E Connector © National Instruments Corp. NI 9213E Operating Instructions and Specifications...
  • Page 8 NI 9213E Circuitry Each channel of the NI 9213E passes through a differential filter and then is multiplexed and sampled by a 24-bit analog-to-digital converter (ADC). Each channel also has an open thermocouple detection (OTD) circuit, which consists of a current source between the TC+ and TC–...
  • Page 9 Current Multiplexer NI 9213E Figure 5. Input Circuitry for One Channel of the NI 9213E The channels share a common ground, COM, that is isolated from other modules in the system. The NI 9213E common-mode range is the maximum voltage between any channel and COM. If COM is not connected, then the common-mode voltage range is the maximum voltage between any two channels.
  • Page 10 Temperature Measurement Accuracy section in the Specifications for the errors for each thermocouple type when connected to the NI 9213E. The errors do not account for the accuracy of the thermocouple itself. NI 9213E Operating Instructions and Specifications 10 ni.com...

  • Page 11: Cold-Junction Temperature Measurement Accuracy

    For the best accuracy results, keep temperature gradients across NI 9213E terminals to a minimum and enable the autozero channel. Refer to the Minimizing Thermal Gradients Using the Autozero Channel sections for more information. Cold-Junction Temperature Measurement Accuracy Heat dissipated by adjacent modules or other nearby heat sources...

  • Page 12: Minimizing Thermal Gradients

    • Minimize adjacent heat sources and air flow across the terminals. • Keep the ambient temperature as stable as possible. NI 9213E Operating Instructions and Specifications 12 ni.com...

  • Page 13: Using The Autozero Channel

    Using the Autozero Channel The NI 9213E has an internal autozero channel to compensate for the offset error. The NI 9213E specifications all assume the autozero channel is on for every sample, however, you can choose not to use the autozero channel in software.

  • Page 14: Sleep Mode

    In sleep mode, the system consumes minimal power and may dissipate less heat than it does in normal mode. Refer to the Specifications section for more information about power consumption and thermal dissipation. NI 9213E Operating Instructions and Specifications 14 ni.com...

  • Page 15: Specifications

    Sampling mode ......... Scanned Voltage measurement range ....±78.125 mV Temperature measurement ranges ..Works over temperature ranges defined by NIST (J, K, T, E, N, B, R, S thermocouple types) © National Instruments Corp. 15 NI 9213E Operating Instructions and Specifications...
  • Page 16 100 S/s, whichever is smaller. Sampling faster than the maximum sample rate may result in the degradation of accuracy. † Including the autozero and cold-junction channels. Common-mode voltage range Channel-to-COM......±1.2 V min COM-to-earth ground....±250 V NI 9213E Operating Instructions and Specifications 16 ni.com...
  • Page 17 Overvoltage protection ..... ±30 V between any two inputs Differential input impedance .... 78 MΩ Input current........50 nA Input noise High-resolution mode....200 nV High-speed mode......7 μV © National Instruments Corp. 17 NI 9213E Operating Instructions and Specifications...
  • Page 18 –40 to 85 °C ....... 1.1 °C typ, 2.1 °C max The maximum errors assume an isothermal error of 1.3 °C. Refer to the Cold-Junction Temperature Measurement Accuracy section for more information. NI 9213E Operating Instructions and Specifications 18 ni.com...

  • Page 19: Temperature Measurement Accuracy

    Measurement sensitivity represents the smallest change in temperature that a sensor can detect. It is a function of noise. The values assume the full measurement range of the standard thermocouple sensor according to ASTM E230-87. © National Instruments Corp. 19 NI 9213E Operating Instructions and Specifications...
  • Page 20 Figures 6, 7, 8, 9, and 10 show the errors for each thermocouple type when connected to the NI 9213E with the autozero channel on. The figures display the maximum errors over a full temperature range and typical errors at room temperature. The figures account for gain errors, offset errors, differential and integral nonlinearity, quantization errors, noise errors, 50 Ω...
  • Page 21 Max (High Speed), –40 to 85 °C Typ (High Speed), Room Temp Max (High Res), –40 to 85 °C Typ (High Res), Room Temp Figure 6. Thermocouple Types J and N Errors © National Instruments Corp. 21 NI 9213E Operating Instructions and Specifications...
  • Page 22 Measured Temperature ( °C Max (High Speed), –40 to 85 Typ (High Speed), Room Temp °C Max (High Res), –40 to 85 Typ (High Res), Room Temp Figure 7. Thermocouple Type K Errors NI 9213E Operating Instructions and Specifications 22 ni.com...
  • Page 23 Max (High Speed), –40 to 85 °C Typ (High Speed), Room Temp Max (High Res), –40 to 85 °C Typ (High Res), Room Temp Figure 8. Thermocouple Types T and E Errors © National Instruments Corp. 23 NI 9213E Operating Instructions and Specifications...
  • Page 24 1800 1000 1200 1400 1600 Measured Temperature ( °C ) Figure 9. Thermocouple Type B Errors NI 9213E Operating Instructions and Specifications 24 ni.com...
  • Page 25 Max (High Speed), –40 to 85 °C Typ (High Speed), Room Temp Max (High Res), –40 to 85 °C Typ (High Res), Room Temp Figure 10. Thermocouple Types R and S Errors © National Instruments Corp. 25 NI 9213E Operating Instructions and Specifications...

  • Page 26: Power Requirements

    Spring-terminal wiring...... 18 to 28 AWG copper conductor wire with 7 mm (0.28 in.) of insulation stripped from the end Weight..........59 g (2.1 oz) NI 9213E Operating Instructions and Specifications 26 ni.com...
  • Page 27 This category refers to local-level electrical distribution, such as that provided by a standard wall outlet, for example, 115 V for U.S. or 230 V for Europe. © National Instruments Corp. 27 NI 9213E Operating Instructions and Specifications...

  • Page 28: Online Product Certification

    Do not connect the NI 9213E to signals or use Caution for measurements within Measurement Categories III or IV. Safety Standards This product meets the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use when installed in a suitable enclosure: •...
  • Page 29 Environmental National Instruments C Series modules are intended for indoor use only but may be used outdoors if installed in a suitable enclosure. Refer to the manual for the chassis you are using for more information about meeting these specifications.

  • Page 30: Environmental Management

    Environmental Management National Instruments 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 NI and the Environment Web page at .
  • Page 31 China RoHS compliance, go to ni.com/ environment/rohs_china Calibration You can obtain the calibration certificate and information about calibration services for the NI 9213E at ni.com/calibration Calibration interval ......1 year © National Instruments Corp. 31 NI 9213E Operating Instructions and Specifications...

  • Page 32: Where To Go For Support

    Where to Go for Support The National Instruments Web site is your complete resource for technical support. At you have access to ni.com/support everything from troubleshooting and application development self-help resources to email and phone assistance from NI Application Engineers.
  • Page 33 Turkey 90 212 279 3031, United Kingdom 44 (0) 1635 523545 National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section on ni.com/legal for more information about National Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies.

Table of Contents