SCM5B43-10

Isolated Analog Signal Conditioning Products S C M 5 B SCM5B43 General Purpose Input Modules, with DC Excitation Description Each SCM5B43 general purpose input module provides a single channel of transducer input which is filtered, isolated, scaled, and converted to a high-level analog voltage output (Figure 1). This voltage output is logic switch controlled, which allows these modules to share a common analog bus without the re uirement of external multiplexers. The SCM5B modules are designed with a completely isolated computer side circuit which can be oated to from Power ommon, pin . This complete isolation means that no connection is re uired between I O Common and Power Common for proper operation of the output switch. If desired, the output switch can be turned on continuously by simply connecting pin , the Read nable pin, to I O ommon, pin . The SCM5B43 can interface to devices which require a precision 10VDC excitation supply. The H bandwidth significantly reduces ripple and noise inherent in these devices. Transducer excitation is provided from the module by a very stable source. The excitation supply is fully isolated, allowing the amplifier inputs to operate over the full range of the excitation voltage. This feature offers significant exibility in real world applications. Ten full scale input ranges are provided, from ± 1V to ± 10V, producing ± 5V full scale output. The input signal is processed through a pre amplifier on the field side of the isolation barrier. This pre amplifier has a gain bandwidth product of H and is bandwidth limited to H . After amplification, the input signal is chopped by a proprietary chopper circuit. Isolation is provided by transformer coupling, again using a proprietary techni ue to suppress transmission of common mode spikes or surges. The module is powered from +5VDC, ± 5%. Features • Interfaces to DC Displacement Transducers and Other Devices Re uiring a Stable D Supply • High-Level Voltage Outputs • 1500Vrms Transformer Isolation • ANSI/IEEE C37.90.1 Transient Protection • Input Protected to 240VAC Continuous • Fully Isolated Excitation Supply • 100dB CMR • 1kHz Signal Bandwidth • ± 0.03% Accuracy • ± 0.005% Linearity Drift SA S ertified • CE and ATEX Compliant • Mix and Match SCM5B Types on Backpanel Special input circuits on the SCM5B43 module provide protection of the signal inputs and the isolated excitation supply up to 240VAC. F i g u r e 1 : S C M 5 B 4 3 B l o ck D ia g r a m 3 2 ©1995-2017 Dataforth Corporation, All Rights Reserved For information call 800-444-7644 ISO9001:2008-Registered QMS Specifications Typical❇ at TA Module Input Range Input Bias Current Input Resistance Normal Power Off Overload Input Protection Continuous Transient and D power Ordering Information SCM5B43 ± 1V to ± 10V ± 0.05nA Model SCM5B43-01 SCM5B43-02 SCM5B43-03 SCM5B43-04 SCM5B43-05 SCM5B43-06 SCM5B43-07 SCM5B43-08 SCM5B43-09 SCM5B43-10 minimum minimum minimum 240Vrms max ANSI/IEEE C37.90.1 (formerly IEEE-472) +10.0VDC ± 2mV 40mA (maximum) ± 5ppm/mA ppm Excitation Voltage, VEXC Excitation Current Excitation Load Regulation xcitation Stability Isolated Excitation Protection Continuous Transient 240Vrms max ANSI/IEEE C37.90.1 (formerly IEEE-472) † CMV, Input to Output Continuous Transient CMR (50 or 60Hz) NMR (– 3dB at 1kHz) 1500Vrms max ANSI/IEEE C37.90.1 (formerly IEEE-472) 100dB dB per Decade above H 1. – 5V to +5V 2. – 10V to +10V Accuracy(1) Linearity Stability Input Offset Output Offset Gain Noise Input, 0.1 to 10Hz Output, 100kHz Bandwidth, – 3dB Response Time to final value Output Range Output Resistance Output Protection Output Selection Time (to ± 1mV of VOUT) Output Current Limit Output nable ontrol Max Logic “0” Min Logic “1” Max Logic “1” Input Current “0,1” Power Supply Voltage Power Supply Current a imum n ut Output Range† ± 1V ± 2V ± 3V ± 4V ± 5V ± 6V ± 7V ± 8V ± 9V ± 10V 1, 2 1, 2 1, 2 1, 2 1, 2 1, 2 1, 2 1, 2 1, 2 1, 2 Output Ranges Available Output Range Part o u fi NONE D am e SCM5B43-01 SCM5B43-01D ± 0.03% Span ± 0.005% Span ppm . rms 5mVp-p 1kHz s See Ordering Information Continuous Short to Ground . s at load = 0 to 2000pF ± 8mA +0.8V +2.4V +36V . A Power Supply Sensitivity +5VDC ± 5% 200mA at Full Exc. Load, 100mA at No Exc. Load RTI(2) Mechanical Dimensions (h)(w)(d) 2.28” x 2.26” x 0.60” (58mm x 57mm x 15mm) Environmental Operating Temp. Range Storage Temp. Range Relative Humidity Emissions EN61000-6-4 Radiated, Conducted Immunity EN61000-6-2 RF ESD,EFT S C M 5 B to to 0 to 95% Noncondensing ISM, Group 1 Class A ISM, Group 1 Performance A ± 0.5% Span Error Performance B NOTES: ❇ ontact factory or your local Dataforth sales office for maximum values. Includes excitation error, linearity, hysteresis and repeatability. (2) RTI = Referenced to input. Visit our website www.dataforth.com ©1995-2017 Dataforth Corporation, All Rights Reserved 3 3 ISO9001:2008-Registered QMS S C M 5 B Isolated Analog Signal Conditioning Products