Page 2 - and enter the info code; rdsoftwareversion; Note; The safety guidelines and specifications in this; Safety Guidelines; Hot Surface; This icon denotes that the component may be
NI 9219 Operating Instructions 2 ni.com 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 determi...
Page 3 - Safety Guidelines for Hazardous Voltages; Caution; Caution; not
© National Instruments Corp. 3 NI 9219 Operating Instructions 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 V pk or 60 VDC to earth ground. Caution Ensure that hazardous v...
Page 4 - Figure 1 shows the NI 9972 connector backshell.; NI 9972 Connector Backshell; Safety Guidelines for Hazardous Locations; Do
NI 9219 Operating Instructions 4 ni.com 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 ha...
Page 5 - Special Conditions for Marine Applications
© National Instruments Corp. 5 NI 9219 Operating Instructions 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 suitability for Class I, Division 2. Caution For Zone 2 applications, install the syst...
Page 6 - section for information about
NI 9219 Operating Instructions 6 ni.com 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 (HI) and the negative signal of the signal source to t...
Page 7 - Signal Names; Module; TEDS Data
© National Instruments Corp. 7 NI 9219 Operating Instructions Table 1. Signal Names Module Terminal Signal Name Signal Description 1 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 inpu...
Page 8 - Terminal Assignments; Mode
NI 9219 Operating Instructions 8 ni.com Table 2. Terminal Assignments Mode Terminal 1 2 3 4 5 6 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 ...
Page 9 - Specifications; Connecting Wires to the NI 9219 Connectors
© National Instruments Corp. 9 NI 9219 Operating Instructions Connecting Wires to the NI 9219 Connectors Use a flathead screwdriver with a blade smaller than 2.3 × 1.0 mm (0.09 × 0.04 in.) to connect wires to the detachable spring-terminal connectors. Insert the screwdriver into a spring clamp activ...
Page 10 - Wiring TEDS Channels; rdteds; Grounding and Shielding Considerations
NI 9219 Operating Instructions 10 ni.com 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 ...
Page 11 - Connecting a Grounded Signal Source to the NI 9219
© National Instruments Corp. 11 NI 9219 Operating Instructions Figure 3. Connecting a Grounded Signal Source to the NI 9219 Figure 4. Connecting a Floating Signal Source to the NI 9219 +– Twisted-Pair Wiring V SIG V SIG Ground Reference Signal Source Shielding HI LO NI 9219 +– Twisted-Pair Wiring V ...
Page 13 - Input Circuitry for One Channel; Voltage and Current Modes; Connections in Voltage, Current, and Digital In Modes
© National Instruments Corp. 13 NI 9219 Operating Instructions 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 acr...
Page 14 - Connections in 4-Wire Resistance and 4-Wire RTD Modes
NI 9219 Operating Instructions 14 ni.com 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 ...
Page 15 - Connections in 3-Wire RTD Mode; -Wire Resistance and Quarter-Bridge Modes
© National Instruments Corp. 15 NI 9219 Operating Instructions 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 Figu...
Page 16 - Connections in 2-Wire Resistance and Quarter-Bridge Modes
NI 9219 Operating Instructions 16 ni.com for lead wire resistance. Refer to Figure 9 for an illustration of the connections. 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 ...
Page 17 - Connections in Half-Bridge and Full-Bridge Modes; Thermocouple Mode
© National Instruments Corp. 17 NI 9219 Operating Instructions 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 th...
Page 18 - Connections in Thermocouple Mode; Digital In Mode
NI 9219 Operating Instructions 18 ni.com environment 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 conn...
Page 19 - Connections in Open Contact Mode; Sleep Mode
© National Instruments Corp. 19 NI 9219 Operating Instructions 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...
Page 20 - Binary Data
NI 9219 Operating Instructions 20 ni.com Binary Data NI 9219 modules in the system return calibrated binary data when used in a 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....
Page 21 - Input Characteristics; Mode input ranges; Voltage
© National Instruments Corp. 21 NI 9219 Operating Instructions Input Characteristics Number of channels .......................... 4 analog input channelsADC resolution ................................. 24 bitsType of ADC..................................... Delta-sigma (with analog prefiltering) Sa...
Page 22 - Conversion time, no channels in TC mode; Digital In
NI 9219 Operating Instructions 22 ni.com Conversion time, no channels in TC mode High speed .................................. 10 ms for all channelsBest 60 Hz rejection ................... 110 ms for all channelsBest 50 Hz rejection ................... 130 ms for all channelsHigh resolution ..........
Page 23 - Input impedance; Gain Error
© National Instruments Corp. 23 NI 9219 Operating Instructions Input impedance Voltage and Digital In modes( ±60 V, ±15 V, ±4 V ) ..................... 1 M Ω Current mode .............................. < 40 Ω All other modes .......................... >1 G Ω Accuracy Mode, Range Gain Error (% ...
Page 25 - Stability; Gain Drift
© National Instruments Corp. 25 NI 9219 Operating Instructions Stability Mode, Range Gain Drift (ppm of Reading/°C) Offset Drift (ppm of Range/°C) Voltage, ± 60 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 m...
Page 26 - Input noise in ppm of Range
NI 9219 Operating Instructions 26 ni.com Input noise in ppm of Range rms Full-Bridge, ± 62.5 mV/V ±3 ±20 Full-Bridge, ± 7.8 mV/V ±3 ±20 Mode, Range Conversion Time High speed Best 60 Hz rejection Best 50 Hz rejection Highreso- lution Voltage, ±60 V 7.6 1.3 1.3 0.5 Voltage, ±15 V 10.8 1.9 1.9 0.7 Vol...
Page 28 - NMRR
NI 9219 Operating Instructions 28 ni.com Input bias current .............................. <1 nAINL.................................................... ±15 ppmCMRR ( f in = 60 Hz) .......................... >100 dB NMRR Best 60 Hz rejection ................... 90 dB at 60 HzBest 50 Hz rejectio...
Page 29 - Excitation level for Resistance, RTD, and Quarter-Bridge modes; Contact NI for Bellcore MTBF specifications; Power Requirements; Power consumption from chassis
© National Instruments Corp. 29 NI 9219 Operating Instructions Excitation level for Resistance, RTD, and Quarter-Bridge modes MTBF ............................................... 384,716 hours at 25 °C; Bellcore Issue 6, Method 1, Case 3, Limited Part Stress Method Note Contact NI for Bellcore MTBF ...
Page 30 - W max; Physical Characteristics; Safety Voltages; Measurement Category II
NI 9219 Operating Instructions 30 ni.com Thermal dissipation (at 70 °C) Active mode ............................... 625 mW maxSleep mode ................................. 25 μ W max Physical Characteristics If you need to clean the module, wipe it with a dry towel.Spring-terminal wiring................
Page 31 - Safety Standards
© National Instruments Corp. 31 NI 9219 Operating Instructions Channel-to-earth ground Continuous ........................... 250 VAC, Measurement Category II Withstand ............................. 2300 VAC, verified by a 5 s dielectric withstand test Measurement Category II is for measurements per...
Page 32 - Hazardous Locations; Environmental
NI 9219 Operating Instructions 32 ni.com by module number or product line, and click the appropriate link in the Certification column. Hazardous Locations U.S. (UL) .......................................... Class I, Division 2, Groups A, B, C, D, T4;Class I, Zone 2,AEx nC IIC T4 Environmental Natio...
Page 33 - Shock and Vibration; To meet these specifications, you must panel mount the system.; Electromagnetic Compatibility; EN 61326 EMC requirements Industrial Immunity
© National Instruments Corp. 33 NI 9219 Operating Instructions Maximum altitude............................. 2,000 m Pollution Degree (IEC 60664) .......... 2 Shock and Vibration To meet these specifications, you must panel mount the system. Operating vibration Random (IEC 60068-2-34)......... 5 g r...
Page 34 - For EMC compliance, operate this device with; CE Compliance; Refer to the Declaration of Conformity (DoC) for; Waste Electrical and Electronic Equipment (WEEE); EU Customers; At the end of their life cycle, all products
NI 9219 Operating Instructions 34 ni.com 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...
Page 35 - Calibration; Where to Go for Support; you have access to
© National Instruments Corp. 35 NI 9219 Operating Instructions Calibration You can obtain the calibration certificate and information about calibration services for the NI 9219 at ni.com/calibration . Calibration interval ........................... 1 year Where to Go for Support The National Instru...
