General, Wiring connections for the external i/o – Nova-Tech Chem-Tech XPV Series User Manual

Page 10

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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.

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