DI-8B32 analog current input modules features ? accepts milliamp level signals ? high level voltage outputs ? 1500vrms transformer isolation ? ansi/ieee c37.90.1 transient pro - tection ? input protected to 30vac continu - ous ? 120db cmr ? 70db nmr at 60hz ? 0.05% accuracy ? 0.02% linearity ? low drift with ambient temperature ? csa, fm and ce certifications pending ? mix and match module types description di-8b modules are an optimal solution for monitoring real-world process signals and providing high level signals to a data acquisition system. each DI-8B32 module isolates, flters and amplifes a process current input signal and provides an analog voltage output. current to voltage conversion is accom - plished internal to the module to ensure high accuracy. signal fltering is accomplished with a three-pole flter optimized for time and frequency response which provides 70db of normal-mode-rejection at 60hz. one pole of this flter is on the feld side of the isolation barrier for anti-aliasing, and the other two are on the system side. a special input circuit on the 8b32 module provides protection against accidental connection of power-line voltages up to 30vac. isolation is provided by optical coupling to suppress transmission of common mode spikes or surges. the module is powered from +5vdc, 5%. the modules are designed for installation in class i, division 2 hazardous locations and have a high level of immunity to envi - ronmental noise. specifications typical at t a = +25oc and +5v power DI-8B32 input range 0ma to 20ma or 4ma to 20ma input resistance normal power off <50? <50? input protection continuous transient 40vac ansi/ieee c37.90.1 cmv, input to output 1500vrms max transient, input to output ansi/ieee c37.90.1 cmr (50hz or 60hz) 120db nmr 70db at 60hz accuracy* 0.05% span nonlinearity 0.02% span stability output gain 25ppm/oc 50ppm/oc noise output, 100khz 250vrms bandwidth, -3db 3hz response time, 90% span 150ms output range 0 to +5v output protection transient continuous short to ground ansi/ieee c37.90.1 power supply voltage +5vdc 5% power supply current 30ma power supply sensitivity 25ppm/% mechanical dimensions 1.11" 1.65" 0.40" (28.1mm 41.9mm 10.2mm) environmental operating temperature storage temperature relative humidity -40oc to +85oc -40oc to +85oc 0 to 95% noncondensing *includes nonlinearity, hysteresis and repeatability. dataq instruments, inc. ? 241 springside drive ? akron, ohio 44333 ? tel: 330-668-1444 ? email: support@dataq.co m ? www.dataq.co m
block diagram DI-8B32 analog current input modules ordering information model number input range output range DI-8B32-01 4ma to 20ma 0v to +5v DI-8B32-02 0ma to 20ma 0v to +5v data acquisition product links click on tet to ump to page data acquisitio n | data logge r | chart recorder | thermocoupl e | oscilloscop e the information on this data sheet is subject to change without notice. dataq and the dataq logo are registered trademarks of dataq instruments, inc. all rights reserved. copyright ? 2005 dataq instruments, inc. 241 springside drive akron, ohio 44333 330-668-1444
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