NI 9219 Operating Instructions
Contents
1. of ete ts Delta sigma with analog prefiltering Sampling mode Simultaneous Type of TEDS supported IEEE 1451 4 TEDS Class II Interface Mode input ranges Mode Nominal Range s Actual Range s Voltage 60 V 15 V x4 V 60 V 15 V 4 V 1 V 125 mV 1 V 125 mV Current 25 mA 25 mA 4 Wire and 2 Wire Resistance 10 1 10 5 1 05 kQ Thermocouple 125 mV 125 mV 4 Wire and 3 Wire RTD Pt 1000 Pt 100 5 05 505 Q Quarter Bridge 350 Q 120 Q 390 Q 150 Q Half Bridge 500 mV V 500 mV V National Instruments Corp 21 NI 9219 Operating Instructions Mode Nominal Range s Actual Range s Full Bridge 62 5 mV V 62 5 mV V 47 8 mV V 7 8125 mV V Digital In 0 60 V Open Contact 1 05 KQ Conversion time no channels in TC mode High speed ees 10 ms for all channels Best 60 Hz rejection 110 ms for all channels Best 50 Hz rejection 130 ms for all channels High resolution 500 ms for all channels Conversion time one or more channels in TC mode High speed 20 ms for all channels Best 60 Hz rejection 120 ms for all channels Best 50 Hz rejection 140 ms for all channels High resolution 510 ms for all channels Overvoltage protection Terminals 1 and 2 30 V Termina2. Figure 9 Connections in 2 Wire Resistance and Quarter Bridge Modes Half Bridge and Full Bridge Modes Half Bridge and Full Bridge modes use the internal voltage excitation to set the input range of the ADC and return voltage readings that are proportional to the excitation level The internal excitation voltage is nominally 2 5 V but it varies based on the resistance of the sensor Refer to the Specifications section for more information about excitation levels In Half Bridge mode the HI input is referenced to In Full Bridge mode the ADC reads the HI and LO inputs differentially Refer to Figure 10 for an illustration of the connections NI 9219 Operating Instructions 16 ni com Wie 1 The dotted line represents the portion of the circuit that is connected only in Full Bridge mode Figure 10 Connections in Half Bridge and Full Bridge Modes Thermocouple Mode In Thermocouple mode connect the positive end of the thermocouple to HI and the negative end of the thermocouple to LO This mode uses the 125 mV range of the ADC to return a voltage reading Use shielded cables and twisted pair wiring and ground the shielded cables Each channel has a built in thermistor for cold junction compensation CJC calculations For improved CJC sensor accuracy operate the NI 9219 in a stable temperature National Instruments Corp 17 NI 9219 Operating Instructions enviro
3. NL 9219 Figure 7 Connections in 4 Wire Resistance and 4 Wire RTD Modes 3 Wire RTD Mode 3 Wire RTD mode sources a current which varies based on the resistance of the load between the EX and EX terminals This mode compensates for lead wire resistance in hardware if all the NI 9219 Operating Instructions 14 ni com lead wires have the same resistance A gain of 2x is applied to the voltage across the negative lead wire and the ADC uses this voltage as the negative reference to cancel the resistance error across the positive lead wire Refer to Figure 8 for an illustration of the connections eee eee ae ae TENE 3 1 Wire AA Q RTD ADC Wire LO WWW gt i Wire _ i VW Y 1 SA E NI 9219 Figure 8 Connections in 3 Wire RTD Mode 2 Wire Resistance and Quarter Bridge Modes In 2 Wire Resistance and Quarter Bridge modes connect the two ends of the resistor or gauge to the NI 9219 across the HI and LO terminals These modes source a current which varies based on the resistance of the load between the HI and LO terminals The resulting resistance is computed from the voltage measurement 2 Wire Resistance and Quarter Bridge modes do not compensate National Instruments Corp 15 NI 9219 Operating Instructions for lead wire resistance Refer to Figure 9 for an illustration of the connections AMA 2A Wire ANN
4. Typically when a system is in sleep mode you cannot communicate with the modules 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 National Instruments Corp 19 NI 9219 Operating Instructions Binary Data NI 9219 modules in the system return calibrated binary data when used ina CompactRIO chassis For these modules you can convert the data to engineering units in software Refer to the software documentation for information about converting data When used in a CompactDAQ chassis NI 9219 modules automatically return the data in terms of engineering units Refer to the software documentation for more information Excitation Protection The NI 9219 excitation circuit is protected from overcurrent and overvoltage fault conditions The circuit is automatically disabled in the event of a fault condition Whenever possible channels automatically recover after the fault is removed Refer to the software documentation for information on how an excitation fault is displayed and handled Specifications The following specifications are typical for the range 40 to 70 C unless otherwise noted NI 9219 0perating Instructions 20 ni com Input Characteristics Number of channels ADC resolution 4 analog input channels IATER 24 bits
5. s Note Contact NI for Bellcore MTBF specifications at other temperatures or for MIL HDBK 217F specifications Power Requirements Power consumption from chassis Active mode sese 750 mW max Sleep mode 25 uW max National Instruments Corp 29 NI 9219 Operating Instructions Thermal dissipation at 70 C Active mode 625 mW max Sleep mode 25 uW max Physical Characteristics If you need to clean the module wipe it with a dry towel Spring terminal wiring 18 to 28 AWG copper conductor wire with 7 mm 0 28 in of insulation stripped from the end Weight sinite 156 g 5 5 oz Safety Safety Voltages Connect only voltages that are within these limits Isolation Channel to channel Continuous 250 VAC Measurement Category II Withstand 1390 VAC verified by a 5 s dielectric withstand test NI 9219 0perating Instructions 30 ni com Channel to earth ground Continuous 250 VAC Measurement Category II Withstand 2300 VAC verified by 5 s dielectric withstand test Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution system This category refers to local level electrical distribution such as that provided by a standar
6. H noncondensing NI 9219 Operating Instructions 32 ni com Maximum altitude 2 000 m Pollution Degree 60664 2 Shock and Vibration To meet these specifications you must panel mount the system Operating vibration Random 60068 2 34 5 Sims 10 to 500 Hz Sinusoidal 60068 2 6 5 g 10 to 500 Hz Operating shock 60068 2 27 30 g 11 ms half sine 50 g 3 ms half sine 18 shocks at 6 orientations Electromagnetic Compatibility This product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement control and laboratory use EN 61326 EMC requirements Industrial Immunity EN 55011 Emissions Group 1 Class A CE C Tick ICES FCC Part 15 Emissions Class National Instruments Corp 33 NI 9219 Operating Instructions Note For EMC compliance operate this device with shielded cabling CE Compliance This product meets the essential requirements of applicable European directives as amended for CE markings as follows 73 23 EEC Low Voltage Directive safety 89 336 EEC Electromagnetic Compatibility Directive EMC s Note Refer to the Declaration of Conformity DoC for this product for any additional regulatory compliance information To obtain the DoC for this product visit ni com certification search by module number or p
7. OPERATING INSTRUCTIONS NI 9219 4 Channel 24 Bit Universal Analog Input Module COKFAAY bOBARMISIU TIA ni com manuals lt ESL For the Japanese language version go to ni com manuals b f NATIONAL INSTRUMENTS These operating instructions describe how to use the National Instruments 9219 For information about installing configuring and programming the system refer to the system documentation Visit ni com info and enter the info code rdsoftwareversion to determine which software you need for the modules you are using s Note The safety guidelines and specifications in this document are specific to the NI 9219 The other components in the system might not meet the same safety ratings and specifications Refer to the documentation for each component in the system to determine the safety ratings and specifications for the entire system Safety Guidelines Operate the NI 9219 only as described in these operating instructions Hot Surface This icon denotes that the component may be hot Touching this component may result in bodily injury NI 9219 Operating Instructions 2 ni com Safety Guidelines for Hazardous Voltages If hazardous voltages are connected to the module take the following precautions A hazardous voltage is a voltage greater than 42 4 Vy or 60 VDC to earth ground A Caution Ensure that hazardous voltage wiring is performed only by qualified per
8. d wall outlet for example 115 V for U S or 230 V for Europe Do not connect the NI 9219 to signals or use for measurements within Measurement Categories III or IV Safety Standards This product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement control and laboratory use 61010 1 EN 61010 1 e UL 61010 1 CSA 61010 1 hy Note For UL and other safety certifications refer to the product label or visit ni com certification search National Instruments Corp 31 NI 9219 Operating Instructions by module number or product line and click the appropriate link in the Certification column Hazardous Locations WS UL s ert dens Class I Division 2 Groups A B C D T4 Class Zone 2 AEx nC IIC T4 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 installation instructions for the chassis you are using for more information about meeting these specifications Operating temperature IEC60068 2 1 IEC 60068 2 2 40 to 70 C Storage temperature IEC60068 2 1 IEC 60068 2 2 40 to 85 C Ingress protection IP 40 Operating humidity 60068 2 56 10 to 9096 RH noncondensing Storage humidity 60068 2 56 5to 95 R
9. ead wire resistance 2 Wire Resistance mode accuracy depends on the lead wire resistance This table Cold junction compensation Sensor acCuracy NI 9219 0perating Instructions sd 1 C typ 24 ni com Stability Gain Drift Offset Drift ppm of ppm of Mode Range Reading C Range C Voltage 60 V 20 0 2 Voltage 15 V 20 0 8 Voltage 4 V 20 3 2 Voltage 1 10 0 2 Voltage Thermocouple 125 mV x10 1 6 Current 25 mA x15 0 4 4 Wire and 2 Wire Resistance 10 kQ x15 3 4 Wire and 2 Wire Resistance 1 15 30 4 Wire and 3 Wire RTD Pt 1000 x15 6 4 Wire and 3 Wire RTD Pt 100 x15 60 Quarter Bridee 350 15 120 Quarter Bridge 120 x15 240 Half Bridge 3 500 mV V 3 20 National Instruments Corp 25 NI 9219 Operating Instructions Gain Drift Offset Drift ppm of ppm of Mode Range Reading C Range C Full Bridge 62 5 mV V 3 20 Full Bridge 7 8 mV V 3 20 Input noise in ppm of Range Conversion Time Best Best High High 60Hz 50 Hz reso Mode Range speed rejection rejection lution Voltage 60 V 7 6 1 3 1 3 0 5 Voltage 15 V 10 8 1 9 1 9 0 7 Voltage 4 V 10 8 2 7 2 7 1 3 Voltage 1 V 7 6 1 3 1 3 0 5 Voltage Thermocouple 10 8 1 9 1 9 1 0 125 mV Current 25 mA 10 8 1 9 1 9 1 0 NI 9219 Operating Instructio
10. ircuits are reconfigured in each mode to accommodate each type of sensor Refer to Figure 5 for an illustration of the input circuitry for one channel of the NI 9219 NI 9219 Operating Instructions 12 ni com 16 TEDS NI 9219 20 4 Isolated MUX Filter ADC Figure 5 Input Circuitry for One Channel Voltage and Current Modes In Voltage and Current modes connect the signal source to the NI 9219 across the HI and LO terminals The current is computed from the voltage that the ADC measures across an internal shunt resistor Refer to Figure 6 for an illustration of the connections Voltage Digital In modes Current mode Figure 6 Connections in Voltage Current and Digital In Modes National Instruments Corp 13 NI 9219 Operating Instructions 4 Wire Resistance and 4 Wire RTD Modes 4 Wire Resistance and 4 Wire RTD modes source a current which varies based on the resistance of the load between the EX and EX terminals The measured resistance is computed from the resulting voltage reading These modes are not affected by lead wire resistance because a negligible amount of current flows across the HI and LO terminals due to the high input impedance of the ADC Refer to Figure 7 for an illustration of the connections Als sas WA Wire ae ADC i Resistor Wire Lo 1 gt AA Wire
11. ls 3 through 6 across any combination 60 V NI 9219 Operating Instructions 22 ni com Input impedance Voltage and Digital In modes 60 V 15 V 4 V 1MQ Current mode lt 40 Q All other modes gt 1 GQ Accuracy Gain Error Offset Error 96 of ppm of Reading Range Typ 25 5 Mode Range Max 40 to 70 C Voltage 60 V 0 3 0 4 20 50 Voltage 15 V 0 3 0 4 60 180 Voltage 4 V 0 3 0 4 240 720 Voltage 1 V 0 1 0 18 15 45 Voltage Thermocouple 125 mV 0 1 0 18 120 360 Current 25 mA 0 1 0 6 30 100 4 Wire and 2 Wire Resistance 10 0 1 0 5 120 320 4 Wire 2 Wire Resistance 1 0 1 0 5 1200 3200 National Instruments Corp 23 NI 9219 Operating Instructions Gain Error of Reading Offset Error ppm of Range Typ 25 5 Mode Range Max 40 to 70 C 4 Wire and 3 Wire RTD Pt 1000 0 1 0 5 240 640 4 Wire and 3 Wire RTD Pt 100 0 1 0 5 2400 6400 Quarter Bridge 350 0 1 0 5 2400 6400 Quarter Bridge 120 Q 0 1 0 5 2400 6400 Half Bridge 500 mV V 0 03 0 07 300 450 Full Bridge 62 5 mV V 0 03 0 08 300 1000 Full Bridge 7 8 mV V 0 03 0 08 2200 8000 assumes 0 Q of l
12. n each mode NI 9219 Operating Instructions 6 ni com Table 1 Signal Names Signal Module Terminal Name Signal Description 1 T TEDS Data Dos 2 T TEDS COM e nm Os 3 EX HI Positive excitation or 96 input signal eu 4 HI Positive input signal Iu es DI on 5 EX LO Negative excitation or mimos input signal 10 Let 6 LO Negative input signal Depending on the mode terminals 3 and 5 are either the excitation signals or the input signals National Instruments Corp 7 NI 9219 Operating Instructions Table 2 Terminal Assignments Terminal Mode 2 3 4 5 6 Voltage T T LO Current T T HI JLO 4 Wire Resistance T T EX HI EX LO 2 Wire Resistance T T HI LO Thermocouple T T LO 4 Wire RTD T T EX HI EX 10 3 Wire RTD T T EX LO Quarter Bridge T T HI 10 Half Bridge T T EX EX Full Bridge T T EX HI EX 10 Digital In T T LO Open Contact T T HI LO NI 9219 Operating Instructions ni com Connecting Wires to the NI 9219 Connectors Use a flathead screwdriver wi
13. nment and avoid placing heat sources near the module or its connectors Refer to the Specifications section for more information about accuracy The NI 9219 does not support open thermocouple detection Refer to Figure 11 for an illustration of the connections Figure 11 Connections in Thermocouple Mode Digital In Mode Digital In mode has a 60 V unipolar threshold that you can set in software Refer to the software documentation for information about setting this threshold Digital In mode is supported only in CompactRIO systems Refer to Figure 6 for an illustration of the connections Open Contact Mode Open Contact mode sources a current between the HI and LO terminals and determines if the two terminals are open or closed based on the measured current through the terminals When the NI 9219 Operating Instructions 18 ni com circuit is open make sure no more than 60 V is sourced across the switch Open Contact mode is supported only in CompactRIO systems Refer to Figure 12 for an illustration of the connections Figure 12 Connections in Open Contact Mode Sleep Mode This module supports a low power sleep mode Support for sleep mode at the system level depends on the chassis that the module is plugged into Refer to the chassis documentation for information about support for sleep mode You can enable sleep mode in software Refer to the driver software documentation for more information
14. ns 26 ni com Conversion Time Best Best High High 60 Hz 50 Hz reso Mode Range speed rejection rejection lution 4 Wire and 2 Wire Resistance 4 1 1 3 0 8 0 3 10 4 Wire and 2 Wire Resistance 7 1 1 8 1 2 0 7 1kQ 4 Wire and 3 Wire RTD 7 6 1 7 1 1 0 4 Pt 1000 4 Wire and 3 Wire RTD Pt 100 10 8 1 9 1 9 0 9 Quarter Bridge 350 Q 5 4 1 0 1 0 0 7 Quarter Bridge 120 Q 5 4 1 0 1 0 0 7 Half Bridge 500 mV V 3 8 0 5 0 5 0 2 Full Bridge 62 5 mV V 54 1 0 1 0 0 8 Full Bridge 7 8 mV V 30 4 7 4 7 2 3 National Instruments Corp 27 NI 9219 Operating Instructions Input bias current lt l nA INI eerte 15 ppm CMRR fin 60 Hz 2100 dB NMRR Best 60 Hz rejection 90 dB at 60 Hz Best 50 Hz rejection 80 dB at 50 Hz High resolution 65 dB at 50 Hz and 60 Hz Excitation level for Half Bridge and Full Bridge modes Mode Load Resistance Excitation V Half Bridge 700 2 5 Half Bridge 240 2 0 Full Bridge 350 2 7 Full Bridge 120 2 2 NI 9219 Operating Instructions 28 ni com Excitation level for Resistance RTD and Quarter Bridge modes Load Resistance Excitation mV 120 50 350 150 1k 430 10k 2200 MIBE 384 716 hours at 25 Bellcore Issue 6 Method 1 Case 3 Limited Part Stress Method
15. roduct line and click the appropriate link in the Certification column Waste Electrical and Electronic Equipment WEEE x EU Customers Atthe end of their life cycle all products must be sent to WEEE recycling center For more information about WEEE recycling centers and National Instruments WEEE initiatives visit ni com environment weee htm NI 9219 Operating Instructions 34 ni com Calibration You can obtain the calibration certificate and information about calibration services for the NI 9219 at ni com calibration Calibration interval year 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 contact your local branch office Australia 1800 300 800 Austria 43 662 457990 0 Belgium 32 0 2 757 0020 Brazil 55 11 3262 3599 National Instruments Co
16. rp 35 NI 9219 Operating Instructions Canada 800 433 3488 China 86 21 5050 9800 Czech Republic 420 224 235 774 Denmark 45 45 76 26 00 Finland 385 0 9 725 72511 France 01 57 66 24 24 Germany 49 89 7413130 India 91 80 41190000 Israel 972 3 6393737 Italy 39 02 413091 Japan 81 3 5472 2970 Korea 82 02 3451 3400 Lebanon 961 0 1 33 28 28 Malaysia 1800 887710 Mexico 01 800 010 0793 Netherlands 31 0 348 433 466 New Zealand 0800 553 322 Norway 47 0 66 90 76 60 Poland 48 22 3390150 Portugal 351 210 311 210 Russia 7 495 783 6851 Singapore 1800 226 5886 Slovenia 386 3 425 42 00 South Africa 27 0 11 805 8197 Spain 34 91 640 0085 Sweden 46 0 8 587 895 00 Switzerland 41 56 2005151 Taiwan 886 02 2377 2222 Thailand 662 278 6777 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 1ega1 for more information about National Instruments trademarks Other product and company names mentioned herein are trademarks or trade names of their respective companies For patents covering National Instruments products refer to the appropriate location Help Patents in your software the patents txt file on your CD or ni com patents 2007 National Instruments Corp All rights reserved 374473D 01 Jun07
17. sonnel adhering to local electrical standards Caution Do not mix hazardous voltage circuits and human accessible circuits on the same module Caution Make sure that devices and circuits connected to the module are properly insulated from human contact Caution When module terminals are hazardous voltage LIVE 242 4 V 60 VDC you must ensure that devices and circuits connected to the module are properly insulated from human contact You must use the NI 9972 connector backshell kit to ensure that the terminals are not accessible National Instruments Corp 3 NI 9219 Operating Instructions Figure 1 shows the NI 9972 connector backshell Figure 1 NI 9972 Connector Backshell Safety Guidelines for Hazardous Locations The NI 9219 is suitable for use in Class I Division 2 Groups A B C D T4 hazardous locations Class I Zone 2 AEx nC IIC T4 hazardous locations and nonhazardous locations only Follow these guidelines if you are installing the NI 9219 in a potentially explosive environment Not following these guidelines may result in serious injury or death Caution Do not disconnect I O side wires or connectors unless power has been switched off or the area is known to be nonhazardous NI 9219 Operating Instructions 4 ni com AN AN AN Caution Do not remove modules unless power has been switched off or the area is known to be nonhazardous Caution Substitution of components may impair
18. suitability for Class I Division 2 Caution For Zone 2 applications install the system in an enclosure rated to at least IP 54 as defined by IEC 60529 and EN 60529 Special Conditions for Marine Applications Some modules are Lloyd s Register LR Type Approved for marine applications To verify Lloyd s Register certification visit ni com certification and search for the LR certificate or look for the Lloyd s Register mark on the module Caution meet radio frequency emission requirements for marine applications use shielded cables and install the system in a metal enclosure Suppression ferrites must be installed on power supply inputs near power entries to modules and controllers Power supply and module cables must be separated on opposite sides of the enclosure and must enter exit through opposing enclosure walls National Instruments Corp 5 NI 9219 Operating Instructions Wiring the NI 9219 The NI 9219 has four 6 terminal connectors that provide connections for four analog input channels Connect the positive signal of the signal source to the positive input signal terminal and the negative signal of the signal source to the negative input signal terminal LO Use the excitation terminals if your sensor requires a separate excitation connection Refer to Table 1 for the signal names and Table 2 for the terminal assignments for each mode Refer to the NJ 9219 Circuitry section for information about connections i
19. th a blade smaller than 2 3 x 1 0 mm 0 09 x 0 04 in to connect wires to the detachable spring terminal connectors Insert the screwdriver into a spring clamp activation slot and press a wire into the corresponding connector terminal then remove the screwdriver to clamp the wire into the terminal Refer to the Specifications section for more information about spring terminal wiring Refer to Figure 2 for an illustration of connecting wires to the NI 9219 Figure 2 Connecting Wires to the NI 9219 Connectors National Instruments Corp 9 NI 9219 Operating Instructions Wiring TEDS Channels The NI 9219 supports only Class II TEDS sensors Connect the two TEDS lines to TEDS Data T and TEDS COM T and ensure that neither T nor T is tied in common to any of the signal inputs terminals 3 through 6 on the NI 9219 Visit ni com info and enter the info code rdteds for information about TEDS sensors Grounding and Shielding Considerations You can connect ground referenced or floating signal sources to the NI 9219 If you make a floating connection between the signal source and the NI 9219 make sure the voltages on the positive and negative connections are within the channel to earth working voltage range to ensure proper operation of the NI 9219 Refer to the Specifications section for more information about operating voltages and overvoltage protection s Note For best signal quality National Instruments recommends
20. using shielded cables and twisted pair wiring whenever possible Figures 3 and 4 illustrate connecting grounded and floating signal sources to the NI 9219 in Voltage mode NI 9219 Operating Instructions 10 ni com Shielding Twisted Falr Signal Source Wiring NI 9219 Vsig Ground Reference Figure 3 Connecting a Grounded Signal Source to the NI 9219 Twisted Pair Shielding Wiring Signal Source i NI 9219 i i Vsig i i Figure 4 Connecting a Floating Signal Source to the NI 9219 National Instruments Corp 11 NI 9219 0perating Instructions NI 9219 Timing Options The NI 9219 supports four different timing options that are optimized for different types of applications by using different ADC conversion times High Speed is optimized for high speed at the expense of noise rejection Best 60 Hz Rejection is optimized for rejection of 60 Hz noise Best 50 Hz Rejection is optimized for rejection of 50 Hz noise and High Resolution is optimized for maximum overall noise rejection and provides good rejection of 50 Hz and 60 Hz noise Refer to the Specifications section for more information NI 9219 Circuitry The NI 9219 is channel to channel isolated Four 24 bit analog to digital converters ADCs simultaneously sample all four analog input channels An excitation circuit is enabled for all input modes that require excitation The ADC and excitation c
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