Product category:
Monitoring and sensor equipment and systems
News Release from: Amalgamated Instrument Co | Subject: Isolated converters/transmitters
Edited by the Manufacturingtalk Editorial
Team on 05 August 2003
Converters/transmitters take temperature
inputs
Taking input from RTD temperature sensors and 3-wire slidewire sensors, up to 4 channels of conversion and isolation capacity are available in a standard DIN rail mount enclosure.
Up to 4 channels of conversion and isolation capacity are available in a standard DIN rail mount enclosure Models are available to take input from RTD temperature sensors, 3-wire slidewire sensors, AC voltage (up to 250VAC) or AC Current (up to 5A AC) and convert them to an isolated 4-20 mA output
This article was originally published on Manufacturingtalk on 16 Jan 2001 at 8.00am (UK)
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Another model takes analog DC mA or DCV and transmits it as a scalable, isolated 4-20mA output.
The products are designed to be powered by a 2-wire 4-20mA loop.
The devices are extremely compact.
Up to 4 channels can be housed in an enclosure, 44 mm x 91 mm x 135 mm that mounts on a standard DIN rail.
These isolators can be ordered in the capacity required.
A user does not have to buy 4 channels but can order 1, 2, 3 or 4 channel units.
An optional dual output 24VDC power supply is available to "slot into" the case with 1 channel or 2 channel models.
The same power supply is available as a standalone unit for the 3 channel and 4 channel converters if required.
These power supplies are only required in situations where the processing equipment cannot provide a loop voltage.
Isolation is 2kV between input and output on the AC models and 1kV on the other models.
Signal isolation is achieved using opto-isolators.
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