National Instruments NI 9239E User Manual

OPERATING INSTRUCTIONS AND SPECIFICATIONSNI 9229E/9239E4-Channel, ±60/±10 V, 24-Bit Simultaneous,Channel-to-Channel Isolated Analog Input Modules

NI 9229E/9239E 10 ni.comStopbandThe filter significantly attenuates all signals above the stopband frequency. The primary goal of the filter is to pr

© National Instruments Corp. 11 NI 9229E/9239Eto control sampling, all of the modules must share a single master timebase source. Refer to the softwar

NI 9229E/9239E 12 ni.comSleep ModeThis module supports a low-power sleep mode. Support for sleep mode at the system level depends on the chassis that

© National Instruments Corp. 13 NI 9229E/9239ESpecificationsThe following specifications are typical for the range –40 to 85 °Cinternal to any enclosu

NI 9229E/9239E 14 ni.comData rate range ( fs) using external master timebaseMinimum... 390.625 S/sMaximum ...

© National Instruments Corp. 15 NI 9229E/9239EAccuracy, NI 9229EMeasurement ConditionsPercent of Reading(Gain Error)Percent of Range*(Offset Error)Cal

NI 9229E/9239E 16 ni.comAccuracy, NI 9239EInput noiseNI 9229E ... 320 μVrmsNI 9239E ...

© National Instruments Corp. 17 NI 9229E/9239EPost calibration gain match(ch-to-ch, 20 kHz)... 0.22 dB maxCrosstalk (1 kHz).

NI 9229E/9239E 18 ni.comAlias-free bandwidth ...0.453 · fs–3 dB prefilter bandwidth( fs = 50 kS/s) ...

© National Instruments Corp. 19 NI 9229E/9239EPower RequirementsPower consumption from chassisActive mode ... 740 mW maxSl

NI 9229E/9239E 2 ni.comThis document describes how to use the National Instruments 9229E and National Instruments 9239E and includes dimensions, term

NI 9229E/9239E 20 ni.comTorque for screw terminals ... 0.22 to 0.25 N · m (1.95to2.21lb· in.)Ferrules ...

© National Instruments Corp. 21 NI 9229E/9239EMeasurement Category II is for measurements performed on circuits directly connected to the electrical d

NI 9229E/9239E 22 ni.comOnline Product CertificationRefer to the product Declaration of Conformity (DoC) for additional regulatory compliance informa

© National Instruments Corp. 23 NI 9229E/9239EMaximum altitude... 2,000 m Pollution Degree (IEC 60664)... 2Environmen

NI 9229E/9239E 24 ni.comCalibrationYou can obtain the calibration certificate and information about calibration services for the NI 9229E/9239E at ni

© National Instruments Corp. 25 NI 9229E/9239EWhere to Go for SupportThe National Instruments Web site is your complete resource for technical support

© 2008 National Instruments Corp. All rights reserved.372666A-01 Nov08National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instrum

© National Instruments Corp. 3 NI 9229E/9239ENI 9229E/9239E DimensionsThe following figure shows the dimensions of the NI 9229E/9239E.Figure 1. NI 92

NI 9229E/9239E 4 ni.comConnecting the NI 9229E/9239EThe NI 9229E/9239E provides connections for four simultaneously sampled, isolated analog input ch

© National Instruments Corp. 5 NI 9229E/9239EThe NI 9229E/9239E has four 2-terminal detachable screw-terminal connectors.Note You must use 2-wire ferr

NI 9229E/9239E 6 ni.comFigure 3. Connecting a Grounded Signal Source to the NI 9229E/9239E Figure 4. Connecting a Floating Signal Source to the NI

© National Instruments Corp. 7 NI 9229E/9239EThe NI 9229E/9239E analog input channels are floating with respect to earth ground and each other. The in

NI 9229E/9239E 8 ni.comUnderstanding NI 9229E/9239E FilteringThe NI 9229E/9239E uses a combination of analog and digital filtering to provide an accu

© National Instruments Corp. 9 NI 9229E/9239E Figure 6. Typical Passband Flatness for the NI 9229E/9239EFrequency/Data Rate0.50.40.0250.000–0.025–0.0