Power Requirements - Emerson Micro Motion Viscomaster Installation Manual

Planning
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1.3

Power requirements

Following are the DC power requirements to operate the meter:
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Do not expose the meter to excessive vibration (greater than 0.5 g continuously).
Vibration levels in excess of 0.5 g can affect the meter accuracy.
For optimal performance of the meter, ensure that operating conditions correspond
to the meter calibration-type code and boundary.
Ensure that all piping connections conform to the local and national regulations and
codes of practice.
Follow fluid velocity guidelines and install the tines vertically for side insertion.
Properly tighten the transmitter housing cover after wiring to maintain ingress
protection and hazardous area approvals.
After installation, pressure test the meter and the associated pipework to 1½ times
the maximum operating pressure.
Install thermal insulation in the meter, the inlet, and the bypass-loop pipeline to
maintain stable temperatures. The thermal insulation should cover the process
connection.
24 VDC, 0.65 W typical, 1.1 W maximum
Minimum recommended voltage: 21.6 VDC with 1000 ft of 24 AWG (300 m of
2
0.20 mm ) power-supply cable
At startup, power source must provide a minimum of 0.5 A of short-term current at
a minimum of 19.6 V at the power-input terminals.
Micro Motion Heavy Fuel Viscosity Meter