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SCMHVAS-M0300

High Voltage Attenuator System Module

SCMHVAS-M0300
High Voltage Attenuator System Module

Description

Note: Click here for first generation SCMVAS modules

The SCMHVAS (Signal Conditioning Modular High Voltage Attenuator System) is an analog signal conditioning system designed to safely monitor and accurately measure voltage potentials up to 1414VAC (4000V peak-to-peak). These high-level voltages are typically found in industrial applications such as induction heaters, electric-motor drive controllers, or battery applications. The system reduces the input signal to a level suitable for interface to data acquisition systems, while at the same time providing various filter characteristics and 1500Vrms isolation.


For each channel of analog input, an attenuator module, SCMHVAS-Mxxxx, pre-conditions the signal which is then filtered, isolated, and converted to a high-level voltage output using an SCM5B30-07 or SCM5B40-07 module. The SCM5B40-07 module with a 10kHz bandwidth is recommended for common 50/60Hz signals low in harmonics where the user is interested in measuring only AC voltage. The SCM5B30-07 module is used for low frequency AC signals below 4Hz. The attenuator and signal conditioning modules have excellent stability over time and do not require re-calibration. Overall system accuracy is ±0.06%.


Input signal connections to the SCMHVAS-Mxxxx attenuator module are made using integrated terminal blocks for robust system assembly. For safety purposes, the terminal blocks are inside the shell and can only be accessed from the top and there are no other exposed high-voltage points on the SCMHVAS-Mxxxx series modules, SCM5B30-07 or SCM5B40-07 module, or the mounting backpanel.


The SCMHVAS system has two specially designed backpanels for mounting the attenuator and signal conditioning modules. The SCMVAS-PB8 high density, 8- channel backpanel (Figures 2, 3 can be panel mounted or DIN rail mounted and provides the conditioned output signal on screw terminal blocks. Jumpers are provided on each channel to optionally connect or isolate each module’s I/O Common from other channel’s I/O Common and/or Power Common. The SCMVAS-PB16 (Figures 4, 5) has 16 channels of analog I/O simultaneously available to high speed data acquisition (ADC) boards through a 26-conductor ribbon cable. Refer to the SCMPB01 Data Sheet and Application Note AN502 for recommended ground connections and host system interfaces. Both the SCMVAS-PB8 and SCMVAS-PB16 backpanels can be mounted on the SCMXRK-002 19-inch metal rack. The SCMVAS-PB8 and SCMVAS-PB16 backpanels are forward compatible and can accommodate both, the original SCMVAS-Mxxx modules and the SCMHVAS-Mxxxx modules.

Features

  • Accepts High Voltage Signals up to 1414VAC (4000V Peak-to-Peak)
  • 5 or 10 Volt Output for A/D Systems
  • 1500Vrms Transformer Isolation
  • True 3-Way Isolation
  • Up to 160dB CMR
  • ± 0.06% Accuracy
  • Panel or DIN Rail Mounting Options
  • CSA Certified (pending)
  • CE Compliant
  • ATEX Compliant (pending)

Block Diagram

Specifications

  • Input Range -300V to +300V
  • Output Range -1V to +1V

Accessories

SCM5B-PROTO
SCM5B breadboard kit View
SCMXDB37F25BP00
Third Party DAQ Front-Ending Adapter for Dataforth Backpanels View
SCMXDB37F27BP00
Third Party DAQ Front-Ending Adapter for Dataforth Backpanels View
SCMXDB37F28BP00
Third Party DAQ Front-Ending Adapter for Dataforth Backpanels View
SCMXDB37F5BP00
Third Party DAQ Front-Ending Adapter for Dataforth Backpanels View
SCMXDB37F7BP00
Third Party DAQ Front-Ending Adapter for Dataforth Backpanels View
SCMXDB37F8BP00
Third Party DAQ Front-Ending Adapter for Dataforth Backpanels View

Competitive Cross-Reference

  • No cross reference is available.
View Dataforth cross-reference data.
The information available through this competitive cross reference guide are based upon product catalog information obtained from a variety of sources. The competitive cross reference information is being provided to you free of charge for your use. While Dataforth Corp has used reasonable efforts to ensure data accuracy, Dataforth Corp does not guarantee that it is error-free, nor does Dataforth Corp make any other representation, warranty or guarantee that the information is accurate, correct, reliable or up-to-date. Dataforth Corp expressly disclaims all implied warranties regarding this information, including but not limited to any implied warranties of merchantability or fitness for a particular purpose.

This information is provided only as a convenience on an "as is" basis and Dataforth Corp. or its representatives or distributors are not responsible for any incorrect, inaccurate, or incomplete information. You are solely responsible for (1) selecting the appropriate Dataforth products for your application, (2) designing, validating and testing your application, and (3) ensuring your application meets applicable standards, and any other safety, security, or other requirements.

FAQ

Is the SCM5B40-06 sensitive to being soldered into a board? Would soldering it damage the part?
We do not recommend soldering the SCM5B pins to a board as it could potentially damage the module. Soldering the pins would also void the warranty. Many sockets are available which accept the mounting pins. TE Connectivity / AMP part number 50865-5 is an example of these sockets and any equivalent part will work as well.

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