Azbil MVC10A, Руководство пользователя

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Azbil Corporation Installation of this instrument
Model: MVC10A/10F - Multivariable Air Flow Meter 2-7
Cable specifications
For wiring with internal terminals of this instrument, use wires in the range of AWG
14 to 24.
Cabling
When running a cable between this instrument and a controller, pay attention to the
following:
Note:
• The cabling should avoid a large-capacity transformer, motor, or power source
that may become a noise source. Do not put the cable in the same tray or duct
with other power cables. This may cause output error.
• For waterproofing and damage prevention of the wire, we recommend cabling
work using conduits and ducts. Be sure to use a waterproof gland for connecting
with each type of wire.
Current output wire connection
• This instrument: Measures flow-rate and outputs instantaneous flow-rate values in
analog signals (4 to 20 mA DC).
• The analog output range is 3.8 mA to 20.8 mA DC (-1.25% to +105%).
• The load resistance is 245 to 300 W
Internal terminals output the current.
This instrument
Receiving
instrument
4-20 mA DC analog signal
Fig. 2-6 Diagram of wire connection of current output
Note:
Incorrect wiring polarity can cause damage to the equipment. Double-check the
wiring position.