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OPERATING INSTRUCTIONS

NI 9219

4-Channel, 24-Bit, Universal Analog Input Module

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Summary of Contents for NI 9219

Page 1: ...OPERATING INSTRUCTIONS NI 9219 4 Channel 24 Bit Universal Analog Input Module...

Page 2: ...les you are using 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 specification...

Page 3: ...ied personnel 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 connecte...

Page 4: ...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 exp...

Page 5: ...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...

Page 6: ...source to the positive input signal terminal HI 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 e...

Page 7: ...T TEDS Data 2 T TEDS COM 3 EX HI Positive excitation or input signal 4 HI Positive input signal 5 EX LO Negative excitation or input signal 6 LO Negative input signal Depending on the mode terminals 3...

Page 8: ...Voltage T T HI LO Current T T HI LO 4 Wire Resistance T T EX HI EX LO 2 Wire Resistance T T HI LO Thermocouple T T HI LO 4 Wire RTD T T EX HI EX LO 3 Wire RTD T T EX EX LO Quarter Bridge T T HI LO Ha...

Page 9: ...ring 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 te...

Page 10: ...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 wit...

Page 11: ...ure 3 Connecting a Grounded Signal Source to the NI 9219 Figure 4 Connecting a Floating Signal Source to the NI 9219 Twisted Pair Wiring VSIG VSIG Ground Reference Signal Source Shielding HI LO NI 921...

Page 12: ...e 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 T...

Page 13: ...he 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 Figu...

Page 14: ...ead 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 Figu...

Page 15: ...the connections 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 N...

Page 16: ...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 se...

Page 17: ...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 juncti...

Page 18: ...n 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...

Page 19: ...e 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...

Page 20: ...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...

Page 21: ...ling 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 4 V 1 V 125 mV 60 V 15 V 4 V 1 V 125 mV Curren...

Page 22: ...nels 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...

Page 23: ...ode Range Gain Error of Reading Offset Error ppm of Range Typ 25 C 5 C 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 Volt...

Page 24: ...er Bridge 350 0 1 0 5 2400 6400 Quarter Bridge 120 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 2 Wire Res...

Page 25: ...V 20 0 2 Voltage 15 V 20 0 8 Voltage 4 V 20 3 2 Voltage 1 V 10 0 2 Voltage Thermocouple 125 mV 10 1 6 Current 25 mA 15 0 4 4 Wire and 2 Wire Resistance 10 k 15 3 4 Wire and 2 Wire Resistance 1 k 15 30...

Page 26: ...ersion Time High speed Best 60 Hz rejection Best 50 Hz rejection High reso 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 Vo...

Page 27: ...e and 3 Wire RTD Pt 1000 7 6 1 7 1 1 0 4 4 Wire and 3 Wire RTD Pt 100 10 8 1 9 1 9 0 9 Quarter Bridge 350 5 4 1 0 1 0 0 7 Quarter Bridge 120 5 4 1 0 1 0 0 7 Half Bridge 500 mV V 3 8 0 5 0 5 0 2 Full B...

Page 28: ...00 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...

Page 29: ...ours at 25 C Bellcore Issue 6 Method 1 Case 3 Limited Part Stress Method Note Contact NI for Bellcore MTBF specifications at other temperatures or for MIL HDBK 217F specifications Power Requirements P...

Page 30: ...e 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 156 g 5 5 oz Safety Safety Voltages Connect only volta...

Page 31: ...l electrical distribution such as that provided by a standard 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...

Page 32: ...re 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 th...

Page 33: ...z Sinusoidal IEC 60068 2 6 5 g 10 to 500 Hz Operating shock IEC 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 t...

Page 34: ...er 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...

Page 35: ...elopment 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...

Page 36: ...ents 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 9...

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