SCM7B31-02

Isolated Process Control Signal Conditioning Products S C M 7 B SCM7B21/30/31 Isolated Analog Voltage Input Modules Description Each SCM7B21/30/31 voltage input module accepts one channel of analog voltage input which is filtered, isolated, amplified, and converted to a high-level analog voltage for output to the process control system (Figure 1). Features These modules incorporate a five pole filtering approach to maximi e both time and fre uency response by ta ing advantage of both Thomson Bessel and Butterworth characteristics. One pole of the filter is on the field side of the isolation barrier four are on the process control system side. • Provides High-Level Voltage Outputs • Accepts Millivolt and Voltage Level Signals • 1500Vrms Transformer Isolation • Accuracy, ± 0.03% of Span Typical, ± 0.1% Max After the initial field side filtering, the input signal is chopped by a proprietary chopper circuit and transferred across the transformer isolation barrier, suppressing transmission of common mode spikes and surges. The signal is then reconstructed and filtered for process control system output. • ANSI/IEEE C37.90.1 Transient Protection • Input Protected to 120Vrms Continuous Noise, Modules accept a wide 14 - 35VDC power supply range (+24VDC nominal). Their compact packages (2.13”x1.705”x0.605” max) save space and are ideal for high channel density applications. They are designed for easy DIN rail mounting using any of the DIN bac panels. pp H , rms H • Up to 160dB CMRR • 85dB NMR at 60Hz, 80dB at 50Hz • Easy DIN Rail Mounting SA S ertified • CE and ATEX Compliant 1500Vrms Isolation Barrier + + – VIN – 1 REXT* 2 Surge Suppression and Protection LPF (1 pole) Iso-Chopper II™ Amplifier Pat. Pending LPF (4 pole) 4 5 X 0 VOUT COM NC Backpanel Term Block Field-Side +V *REXT is a backpanel option for current to voltage conversion using either Dataforth P/N –V SCM7BXR1 (250Ω) or a user provided resistor. F i g u r e 1 : S C M 7 B 2 1 / 3 0 / 3 1 B l o ck 3 DC Supply D ia g r a m 6 8 ©1995-2017 Dataforth Corporation, All Rights Reserved Process Control System-Side For information call 800-444-7644 ISO9001:2008-Registered QMS DC Supply/ Oscillator 5 VS (14-35VDC) COM Isolated Process Control Signal Conditioning Products Typical❇ at and Module Input Signal Range Bias Current Resistance Normal Power Off Overload Protection Continuous Transient Output Signal Range(1) ffective Available Power(1) Resistance Protection Voltage/Current Limit CMV (Input-to-Output) Continuous Transient CMRR (50 or 60Hz) Accuracy(2) Linearity(3) Stability to Gain Input Offset Zero Suppression Output Offset Noise Peak at 5MHz B/W RMS at 10Hz to 100kHz B/W Peak at 0.1Hz to10Hz B/W Frequency and Time Response Bandwidth, – 3dB NMR (50/60Hz) Step Response, 90% Span Supply Voltage Current(1) Sensitivity Ordering Information D SCM7B21 SCM7B30 ± 10V ± 0.1nA ± 10mV to ± 1V ± 0.5nA min min min * * * † Continuous Short to Ground ± 12V, ± 14mA 1500Vrms ANSI/IEEE C37.90.1 100dB † 40mW * * * * * * * * * * 160dB * 120dB * * * * Span typical, Span max Span typical, Span max ppm . ± 0.005% (Vz) (5) . Span ppm N/A(4) N/A Span 1mV 14 to 35VDC 16mA ± 0.0002%/ %V S Mechanical Dimensions (h)(w)(d) 2.13” x 1.705” x 0.605” max (54.1mm x 43.3mm x 15.4mm max) Environmental Operating Temperature Range Storage Temperature Range Relative Humidity Emissions EN61000-6-4 Radiated, Conducted Immunity EN61000-6-2 RF ESD, EFT to to 0 to 95% Noncondensing ISM, Group 1 Class A ISM, Group 1 Performance A ± 0.5% Span Error Performance B Input Range SCM7B21(7) SCM7B30-01 SCM7B30-02 SCM7B30-03 SCM7B30-05 SCM7B30-06 SCM7B30-07 SCM7B30-08 ± 10V 0 to +10mV 0 to +100mV 0 to +1V +1 to +5V ± 10mV ± 100mV ± 1V SCM7B31-01 SCM7B31-02 SCM7B31-03 SCM7B31-04 SCM7B31-05 SCM7B31-06 SCM7B31-07 SCM7B31-08 0 to +10V ± 5V ± 10V 0 to +5V 0 to +20V ± 20V 0 to +50V ± 50V Output Ranges Available † +1 to +5V 0 to +5V 0 to +10V NONE A D am e SCM7B30-01 SCM7B30-01A SCM7B30-01D * * * * * H Model Output Range Part o u fi ppm * RTI(6) 300Hz dB per Decade above 1.5ms min min min * ± 10V 10mW . ± 1V to ± 50V ± 0.05nA min min 120Vrms max ANSI/IEEE C37.90.1 ± 0.03% ± 0.1% ± 0.01% ± 0.02% SCM7B31 S C M 7 B Specifications S C M 7 B * 3Hz 80/85dB 165ms * 12mA ± 0.0001%/ %V * * * * * * * S * * * * * * * * * * * * * * * * * * * NOTES: ❇ ontact factory or your local Dataforth sales office for maximum values. Specification same as preceding model. Output Range and Supply urrent specifications are based on minimum output load resistance. inimum output load resistance is calculated by OUT2/PE, where PE is the Output ffective Available Power that guarantees output range, accuracy, and linearity specifications. Accuracy includes the effects of repeatability, hysteresis, and linearity. Linearity is calculated using the best fit straight line method. Input offset term included in output offset specification. (5) VZ is the nominal input voltage that results in a 0V output. (6) RTI = Referenced to Input. S B is available only as output. Visit our website www.dataforth.com ©1995-2017 Dataforth Corporation, All Rights Reserved 6 9 ISO9001:2008-Registered QMS