11
Analog Output(s)
The isolated 16-bit 4-20mA output(s) can be wired for use with Loop powered
inputs or for ground referenced inputs. The analog signal has an internal LED
in series which varies in intensity as the mA signal varies. This can be used
for troubleshooting purposes. When using the analog signal with inputs used
with loop powered signals, it is important to note that the MX 9000 requires an
external power supply to power the loop as shown below.
Frequency Output (option boards 1 and 2)
An opto-isolated NPN open-collector output can sink or source depending on
connection. Attention must be paid to polarity of connections. Limit circuit
current to 50 mA and 30 VDC for this circuit.
Figure 4: Analog Outputs
Relay Outputs
Two form C relay outputs are available on option boards 1 and 2. They are
programmed by the limit screens as to the function of each. See Relay Contact
Ratings on page 10 for limits.
Figure 5: Frequency Output
Summary of Contents for AW Gear Meters MX 9000
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