Loop interface converts digital to 4-20 mA

HIM Smart HART Loop Interface and Monitor from Moore Industries-International Inc. (North Hills, CA) converts HART digital data to 4-20 mA signals that can be used by DCSs or PLC-based control systems. HIM Smart HART allows up to three additional analog process measurements from smart HART multivariable mass flow, level, pressure and pH transmitters.

01/01/2003


A 2002 EDITORS' CHOICE AWARDS WINNER


NETWORKS & COMMUNICATIONS



HIM Smart HART Loop Interface and Monitor from Moore Industries-International Inc. (North Hills, CA) converts HART digital data to 4-20 mA signals that can be used by DCSs or PLC-based control systems. HIM Smart HART allows up to three additional analog process measurements from smart HART multivariable mass flow, level, pressure and pH transmitters. For a multivariable mass flow transmitter, this can include pressure, differential pressure, process temperature, flow rate, flow total, and sensor temperature.

Using HART digital data riding on the 4-20 mA current loop, HIM separates up to three 4-20 mA signals, representing any combination of a smart multivariable transmitter's first, second, third, or fourth measurement variables. The variables can then be used by analog control systems, such as a DCS or a PLC. Also, dual alarm trip outlets can be individually configured to warn of high/low process conditions.

These outlets can also be set to alert if a monitored device and/or the HART monitor is experiencing a fault condition. This includes using HART protocol's status bits to indicate a smart transmitter cold start; field device malfunction; or that the primary variable analog output is fixed, saturated, or out of limits.

www.miinet.com


  • Converts HART to 4-20 mA signals

  • Allows up to three process measurements from smart HART multivariable transmitters

  • Works with every smart HART transmitter and valve

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