Standard RU-274-R2-VDC Transducer Dip Switch Settings and Wiring Details
The Default Settings for S1, S2, and S3 are, 1-ON, 2-OFF
For other settings and pressure ranges consult transducer product data sheet
Notice: The AMS050 is available with multiple control solutions. If the AMS050 unit on you project has
something other than the solutions specified in this document, consult your local representative or the
company that provided this air measurement station.
Follow the steps below to set up the standard RU-274-R2-VDC low-pressure transducer. The default
settings are shown above for a 0-10VDC output and a 0-1.0 inwc pressure range. Normal power
source is 24VAC however 12 to 40VDC or 12 to 35VAC are also acceptable.
1. The terminal block can be wired by carefully unplugging it from the circuit board.
2. Locate the (+) (-) and the (O) terminal markings on the circuit board.
3. Attach the power wires to the respective (+) and (-) terminals. Note: the (-) terminal is also the
negative output termination point.
4. Connect the (O) terminal, which is the positive VDC output terminal, to the BAS input.
5. Verify the VDC output with a digital volt meter connected to the (O) and (-) terminals.
6. Voltage output signal and differential pressure range are dipswitch selectable. Reference the
installation instructions for the low-pressure transducer for additional information.
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Follow the steps below to set up the standard RU-274-R2-VDC low-pressure transducer. The default
settings are shown above for a 0-10VDC output and a 0-1.0 inwc (249 Pa) pressure range. Normal
power source is 24VAC however 12 to 40VDC or 12 to 35VAC are also acceptable.