36
Pyxis STA-500 Sensors
Wiring for
MegaTron XS
Note: Refer to
full manual for
additional
information
XS Megatron Main, Rev.
VDC Output
Connections
Gnd
Gnd
-12
-12
+12
+12
+5
+5
Aux Flow Inputs
+5
Gnd
Gnd
Input 1
Input 2
Input 3
Input 4
LED
Cable
Comm Card
Slot
LED
Input 1 +
Input 1 -
4-20mA
Slot
Open
System
Slot
+12
-12
+5
+5
WHITE (+4-20)
GREEN (-4-20)
RED (+) 12 VDC
Battery
BLACK ( - ) 12 VDC
NOTE: Pyxis may replace the
WHITE wire with a BROWN wire
for the positive mA output.
MegaTron wiring for Autorol Turbine Meters
1” METER = 65 PULSES / GALLON
2” METER = 15 PULSES / GALLON
XS Megatron Main, Rev.
VDC Output
Connections
Gnd
Gnd
-12
-12
+12
+12
+5
+5
Aux Flow Inputs
+5
Gnd
Gnd
Input 1
Input 2
Input 3
Input 4
LED
Cable
Comm Card
Slot
4-20mA
Slot
Open
System
Slot
Battery
LED
Ground
Water Meter 1
Water Meter 2
Red
White
Black
MegaTron XS
Note: Use 22 AWG (.76 mm)
twisted pair shielded wire
for all of these low voltage
signal connections.
Black
Ground
Drum Level 5
Drum Level 4
Drum Level 3
Ground
Drum Level 2
Drum Level 1
Water Meter Ground
Water Meter 2 Signal
Water Meter 1 Signal
Flow Switch
ORP
ORP
pH
pH
Conductivity
Temperature
+5 VDC
Red
Black
Red
Black
White
Green
Ground
Ground
Ground
Red
Aux Flow +5 vdc
Signal Aux Flow 1
Signal Aux Flow 2
Signal Aux Flow 3
Aux Flow
PIC Chip
Ground
Ground
W
W
W
R
All 3
B
B
Aux Flow
Aux Flow
Red
White Black
MegaTron SS
LED
Red
Black
Green
White
Ground
Drum Level 5
Drum Level 4
Drum Level 3
Ground
Drum Level 2
Drum Level 1
Water Meter Ground
Water Meter 2 Signal
Water Meter 1 Signal
Flow Switch
Red
Red
ORP
Conductivity
Temperature
+5 VDC
MegaTron
Red