AW Gear Meters MX 9000 - Manual (Page 14)

MX 9000 Process Monitor
Operation and Programming Manual
13
MX 9000 User Manual, Rev. 2.0 7/16/2013
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.
Figure 4: Analog Outputs
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 5: Frequency Output