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AMALGAMATED INSTRUMENT RM3-AV Operation And Instruction Manual

Ac volts transmitter
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AMALGAMATED INSTRUMENT CO PTY LTD
Unit 5, 28 Leighton Place Hornsby
NSW
2077 AUSTRALIA
RM3-AV
AC Volts Transmitter
(True RMS)
Operation and
Instruction Manual
Telephone:
+61 2 9476 2244
Facsimile:
+61 2 9476 2902
ACN: 001 589 439
e-mail: sales@aicpl.com.au
Internet: www.aicpl.com.au

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Summary of Contents for AMALGAMATED INSTRUMENT RM3-AV

  • Page 1 RM3-AV AC Volts Transmitter (True RMS) Operation and Instruction Manual AMALGAMATED INSTRUMENT CO PTY LTD ACN: 001 589 439 Unit 5, 28 Leighton Place Hornsby Telephone: +61 2 9476 2244 e-mail: sales@aicpl.com.au 2077 AUSTRALIA Facsimile: +61 2 9476 2902 Internet: www.aicpl.com.au...

  • Page 2: Mechanical Installation

    Introduction This manual covers the installation and operation of the RM3-AV AC volts true RMS transmitter . The RM3 accepts inputs in the ranges 1.5V, 15V, 150V or 250V RMS (link selectable) and produces a loop powered 4-20mA output which is zero and span adjustable. For voltages above 250V RMS an external voltage transformer can be used to lower the input voltage to a suitable range.

  • Page 3: Electrical Installation

    Earth lug - can be located at the top or bottom of the case as required 1 AC VOLTS INPUT 4 CHANNELS 2 AC VOLTS INPUT 3 4-20mA OUTPUT 4 4-20mA OUTPUT SERIAL No : RM3-AV-LPI-4 Instrument data label - 4 channel example Page 3 of 8 RM3AVMAN-1.1-1...

  • Page 4: Voltage Transformer

    Typical interconnection diagram Example 1 - connection to PLC using PLC supplied 24VDC to power the output loop. External voltage transformer used to step down input voltage. RM3-AV-LPI VOLTAGE TRANSFORMER 24VDC AC Volts 4-20mA Example 2 - connection to a remote display using external 24VDC supply to power the output loop.
  • Page 5 Input range links To gain access to the input range link settings remove the four front bezel screws and the single screw which passes through the side of the instrument then slide out the bezel and circuit boards. If more than one board is fitted they are joined via a single multi way connector and can be pulled apart.

  • Page 6: Zero And Span Adjustment

    6. Repeat steps 2 to 5 until the output at both 4 and 20mA are correct to the required tolerance. Note: The RM3-AV is able to be spanned over a part of its input range if required. A table giving span range for each input is given below.

  • Page 7: Technical Specifications

    Specifications TECHNICAL SPECIFICATIONS Input: Link selectable 0-1.5, 0-15, 0-150 or 0-250VAC with DC link to allow DC component of the waveform to be taken into account if required. Output: 4-20mA (true RMS measurement) Supply: Loop powered. Loop supply voltage required 9 to 34VDC Accuracy: 0.5% of full scale (pure sinewave input) Linearity:...

  • Page 8: Guarantee And Service

    Guarantee & Service The product supplied with this manual is guaranteed against faulty workmanship for a period of 2 years from the date of dispatch. Our obligation assumed under this guarantee is limited to the replacement of parts which, by our examination, are proved to be defective and have not been misused, carelessly handled, defaced or damaged due to incorrect installation.

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