General, Wiring connections for the external i/o – Nova-Tech Chem-Tech XPV Series User Manual
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REV. D PN J63091
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Software Ver: Indicates software version
Troubleshoot: Shows various system inputs to aid startup issues
W-Meter Input:
W-Meter: Selects the type of water meter being used (dry contact or Hall
Effect)
Volume/Kfact: Sets the water meter volume per pulse or K-factor
Flow Units: Sets the units for flow display (gallons or liters)
Relay Output:
Stop Input: Relay activates when the stop input is active
Low 4-20 Alrm: Relay activates when 4-20mA input drops below the low
4-20mA alarm point
Hi 4-20 Alrm: Relay activates when 4-20mA input is above the high 4-
20mA alarm point
Circuit Failure: Relay activates when a circuit failure is detected
Pump Running: Relay activates when the motor is running
Wiring connections for the External I/O
WIRE
FUNCTION
RED
4-20mA(+) /
W-METER(+)
BLACK
4-20mA(-) /
W-METER(-)
YELLOW
STOP
VIOLET
STOP
BROWN
RELAY OUT(-)
BLUE
RELAY OUT(+)
ORANGE
+12VDC
WHITE
HALL/Flow(SIG)
GREEN
GND.
Dry contact water meter Hall-Effect water meter
Stop Input Connection Relay Connection 4-20mA Connection
5.1. General
DANGER:
DO NOT ATTEMPT TO FEED CHEMICALS WITHOUT FIRST
CONSULTING YOUR CHEMICAL FEEDER DEALER OR CHEMICAL SUPPLIER. To
avoid running out of chemical, follow a regular schedule of monitoring chemical supply.