Installation guide

18
Sensor
The 5500 and 5200 devices include a sensor port for monitoring various voltage events occurring within the vehicle such
as: PTO engagement/disengagement, secondary engine on/off, and door open/close.
Please review prior to performing sensor installation:
• Installer shall use only a digital multi-meter to verify that line Voltage is within the product tolerances.
• Installer shall use 24 gauge (minimum) wires for installation.
• Electrical connectors must be used when attaching sensor wires.
• Voltage testing should always be performed with a vehicle door open to avoid retained accessory power issues.
The 5500/5200 comes equipped with two sensor inputs. Each sensor will be associated with a pair of input wires. One pair
of wires (Purple, Black) will be associated with Sensor 1 and the other pair of wires (Blue, Black) will be associated with
Sensor 2.
Use the Black wire of each pair to make a secure vehicle ground connection. Then, connect the other wire (Blue or Purple)
of each pair to the desired signal to be monitored.
If only one wire pair (sensor input) is to be used, the other pair must be twisted together and insulated via heat shrink or
some other secure means to prevent contact with any vehicle structures and to ensure it does not interfere with any moving
parts in the vehicle.
The sensor wires can be extended with the same gauge wire if needed.
The signal to be monitored should have two voltage states: One where there is no voltage
(i.e. zero volts when referenced to ground) and another that falls in the range +5 to +24 or -5 to -24 volts. The signal being
monitored should be capable of supplying 3 mA when a voltage is present. It is important that the voltage signal be tested
to ensure it is continuously providing the necessary voltage and current when in the “on” or “active” position.
The following table shows how the signals are interpreted.
Wire A (Black) Ground or reference for wire B
Wire B (Blue or Purple) Off (-3V < x < +3V)
On (-24V < x < -5V or +5V < x < +24V)
Undefined (-5V < x < -3V or +3V < x < +5V)
On a system where the PTO and the Sensor use the same battery:
• Connect the Black Sensor Wire to Battery, which will be the reference.
• Connect the Purple or Blue Wire to the PTO switch.
On a system where the PTO and the Sensor use different batteries:
• Connect the Black Sensor Wire to Battery, which will be the reference.
• Connect the Purple or Blue Wire to the PTO switch.