5
MAN# 650051-A
Using external warning indicators:
The WRN1 terminal provides a ground trigger whenever any of the senders are outside
the set limits. Low current indicators (less than 250 mA) can be activated directly by connecting
their power wire to 12 volts and connecting their ground wire to the WRN1 terminal.
The WRN2 terminal also provides a ground trigger whenever the second boost warning
point is outside the set limit. Low current indicators (less than 250 mA) can be activated directly
by connecting their power wire to 12 volts and connecting their ground wire to the WRN2
terminal.
For higher current buzzers, lights, or solenoids, a relay will need to be used to switch the
indicator on. Dakota Digital’s RLY-1 30A relay may be used for this. One of the coil wires
should be connected to 12 volts and the other coil wire connected to the WRN1 terminal. When
the gauge is outside its limits, the relay will turn on. The relay contact wires can be used to
switch the higher current device.
Features:
•
Provides vacuum/boost pressure, exhaust gas temp, and temperature readings.
•
Boost calibration routine to compensate for atmospheric pressure changes due to weather/elevation.
•
High boost readings, up to 85 psi.
•
Two warn outputs for an external warning light or buzzer.
•
A warning feature that flashes the gauge readout when outside operating limits.
•
User adjustable warning points.
•
Microprocessor stabilized readings.
•
Automatic Night dimming.
•
High Visibility, full character VFD display.
OPERATION:
The gauge needs only the PWR and GND terminals connected to light up. When the
DIM terminal has 12 volts, it will dim the display for night viewing. The gauge connects to the
control module with the supplied cable with appropriate connectors on either end.
The display will show readings of --- and EEE until the sensors are connected to the
control module. If a sensor goes out of range during operation you will also so EEE or ---.
The display will flash and the respective warning outputs will be activated whenever the
pressure or temperature is out of the warning set limits. The WRN1 will activate for any one of
the readings. The WRN2 is a special boost output and will only be activated if the “HI WARN2”
is out of its set warn limit.
WARNING! - CONNECTING A HIGH CURRENT INDICATOR DIRECTLY
TO THE WARNING OUTPUT WILL DAMAGE THE UNIT.
