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® 2018 Valco Companies, Inc.
Digital alarms provide warnings of almost any emergency condition you need to be informed about. Any no-voltage
circuit that can be switched will provide an alarm to the controller.
The controller has (6) six digital inputs (numbered DIN1 through DIN6 on the input board) which can be connected to
digital alarms, whisker switch or water meters.
The term “digital” refers to two possible states for a circuit: open and closed. You can set up each digital alarm input
to sense for an open or a closed circuit. The circuit must be a simple switch with no voltage applied.
• Attach a low water pressure switch to detect water line breaks or empty water tanks. This can be especially
important where evaporative cooling or fogging is used.
• Attach a gas pressure switch to detect an interruption in gas.
• If you are running three-phase power, you can set up a switch to detect the loss of a phase.
• Attach a level switch to indicate when your feeder bin is empty.
• If your curtain drop has an output switch or the capability to have a switch/relay added, you can alarm when
the curtain drops.
• You can hook up a door switch to alarm when people enter your building, or when the door remains open.
The controller allows you to set
up the digital alarm in several
ways. For example, you can
alarm when the circuit becomes
open or becomes closed and
you can delay an alarm to avoid
false alarms.
Digital Inputs
+12V
DI
N
1
GND
+12V
DI
N
2
GND
+12
DI
N
3
G
ND
+12
DI
N
4
GND
Digital Alarm
Water Flow Meter
This manual has included several different water meter products. Be sure to choose the correct set of instructions for
installing your specific water meter. Your water meter should be shipped with instructions from the manuafacturer.
We have included instructions for a few products for your convenience. VAL-CO® is not responsible for meter damage
or incorrect readings occuring from improper installation.
Several types of electronic water meters are available. IT IS RECOMMENDED THAT YOU
USE THE DIRECTIONS SHIPPED WITH YOUR SPECIFIC WATER METER FOR INSTALLATION
AND WIRING, IMPROPER WIRING WILL RESULT IN PRODUCT DAMAGE.
WARNING!
Attaching circuits with voltage to the controller’s digital inputs will damage the controller.