AW Gear Meters MX 9000 - Manual (Page 13)

MX 9000 Process Monitor
Operation and Programming Manual
12
MX 9000 User Manual, Rev. 2.0 7/16/2013
Sensor / Pulse Inputs
Pulse inputs are opto isolated and come referenced to signal ground. Regulated +15 VDC at 50mA max
is available for powering each sensor. Inputs can also be isolated from the control power by cutting CT1
or CT2 with a sharp knife but then the internal +15 VDC supply is not available. Minimum input voltage
is 5 VDC peak for pulses.
Figure 2: Sensor / Pulse Inputs
Reset Input
Opto-isolated external reset input will trigger the MX 9000 to reset the totalizer(s) when the input sees a
momentary transition from low (ground) to high (near supply). Reset input can be isolated from internal
ground by cutting CT3 with a sharp knife.
Figure 3: Reset Input