National Instruments NI 9229 Uživatelský manuál

OPERATING INSTRUCTIONS AND SPECIFICATIONSNI 9229/92394-Channel, ±60/±10 V, 24-Bit Simultaneous,Channel-to-Channel Isolated Analog Input Modulesni.com/

NI 9229/9239 10 ni.com Figure 3. Connecting a Grounded Signal Source to the NI 9229/9239 Figure 4. Connecting a Floating Signal Source to the NI 92

© National Instruments Corp. 11 NI 9229/9239 The NI 9229/9239 analog input channels are floating with respect to earth ground and each other. The inco

NI 9229/9239 12 ni.comWiring for High-Vibration ApplicationsIf an application is subject to high vibration, National Instruments recommends that you

© National Instruments Corp. 13 NI 9229/9239 Understanding NI 9229/9239 FilteringThe NI 9229/9239 uses a combination of analog and digital filtering t

NI 9229/9239 14 ni.com Figure 7. Typical Passband Flatness for the NI 9229/9239Frequency/Data Rate0.50.40.0250.000–0.025–0.0500.30.20.10Gain (dB)

© National Instruments Corp. 15 NI 9229/9239 StopbandThe filter significantly attenuates all signals above the stopband frequency. The primary goal of

NI 9229/9239 16 ni.comthe modules must share a single master timebase source. Refer to the software help for information about configuring the master

© National Instruments Corp. 17 NI 9229/9239 Sleep ModeThis module supports a low-power sleep mode. Support for sleep mode at the system level depends

NI 9229/9239 18 ni.comSpecificationsThe following specifications are typical for the range –40 to 70 °Cunless otherwise noted. All voltages are relat

© National Instruments Corp. 19 NI 9229/9239 Data rate range (fs) using external master timebaseMinimum... 390.625 S/

NI 9229/9239 2 ni.comThis document describes how to use the National Instruments 9229 and National Instruments 9239 and includes specifications and t

NI 9229/9239 20 ni.comAccuracy, NI 9229Measurement ConditionsPercent of Reading(Gain Error)Percent of Range*(Offset Error)Calibrated max (–40 to 70 °

© National Instruments Corp. 21 NI 9229/9239 Accuracy, NI 9239Input noiseNI 9229... 320 μVrmsNI 9239...

NI 9229/9239 22 ni.comPost calibration gain match(ch-to-ch, 20 kHz)... 0.22 dB maxCrosstalk (1 kHz)...

© National Instruments Corp. 23 NI 9229/9239 Alias-free bandwidth ...0.453 · fs–3 dB prefilter bandwidth(fs = 50 kS/s)...

NI 9229/9239 24 ni.comPower RequirementsPower consumption from chassisActive mode ... 740 mW maxSleep mode ...

© National Instruments Corp. 25 NI 9229/9239 SafetySafety VoltagesConnect only voltages that are within the following limits.Channel-to-earth ground i

NI 9229/9239 26 ni.comMeasurement Category I is for measurements performed on circuits not directly connected to the electrical distribution system r

© National Instruments Corp. 27 NI 9229/9239 Safety StandardsThis product is designed to meet the requirements of the following standards of safety fo

NI 9229/9239 28 ni.comEnvironmentalNational Instruments C Series modules are intended for indoor use only but may be used outdoors if installed in a

© National Instruments Corp. 29 NI 9229/9239 Shock and VibrationTo meet these specifications, you must panel mount the system and either affix ferrule

© National Instruments Corp. 3 NI 9229/9239 Safety GuidelinesOperate the NI 9229/9239 only as described in these operating instructions.Hot Surface Th

NI 9229/9239 30 ni.comNote For EMC compliance, operate this device with shielded cabling.CE ComplianceThis product meets the essential requirements o

© National Instruments Corp. 31 NI 9229/9239 For additional environmental information, refer to the NI and the Environment Web page at ni.com/environm

NI 9229/9239 32 ni.comCalibrationYo u can obtain the calibration certificate and information about calibration services for the NI 9229/9239 at ni.co

© National Instruments Corp. 33 NI 9229/9239 Australia 1800 300 800, Austria 43 662 457990-0, Belgium 32 (0) 2 757 0020, Brazil 55 11 3262 3599, Canad

© 2007–2008 National Instruments Corp. All rights reserved.374184E-01 Jul08National Instruments, NI, ni.com, and LabVIEW are trademarks of National In

NI 9229/9239 4 ni.comCaution When module terminals are hazardous voltage LIVE (>42.4Vpk/60 VDC), you must ensure that devices and circuits connect

© National Instruments Corp. 5 NI 9229/9239 Safety Guidelines for Hazardous LocationsThe NI 9229/9239 is suitable for use in Class I, Division 2, Grou

NI 9229/9239 6 ni.comCaution For Zone 2 applications, install a protection device between the input signal and the NI 9229/9239 input terminal. The d

© National Instruments Corp. 7 NI 9229/9239 Special Conditions for Marine ApplicationsSome modules are Lloyd’s Register (LR) Type Approved for marine

NI 9229/9239 8 ni.comConnecting the NI 9229/9239The NI 9229/9239 provides connections for four simultaneously sampled, isolated analog input channels

© National Instruments Corp. 9 NI 9229/9239 The NI 9229/9239 has four 2-terminal detachable screw-terminal connectors.Note You must use 2-wire ferrule