Installation Instructions for 2 5/8" Analog Gauges. You will need 18 gauge wire to install this gauge. 1. Connect the Black (GND) wire directly to the engine block. Do not connect this wire to any other location or your gauge will be inaccurate. This gauge works by measuring the resistance of the sending unit to ground. If there is a bad ground or additional resistance between the gauge (black wire) and the sender, then the gauge will be inaccurate. 2. Connect the Orange wire to the sending unit. 3. Connect the Purple wire from the gauge to your dimmer switch wiring. This wire is for night time viewing. This gauge is illuminated with a Blue LED that, unlike light bulbs, will never need replacing. 4. Connect the White wire to any electrical device (up to 2 amps) that you would like to have activated when the gauge falls below the set point (alarm mode). The White wire will provide ground to your device when it is activated. Your device's +12 volt connection must be connected to +12 volts to work. The white wire will complete the circuit to ground when the gauge reaches it's setpoint reading. If you connect the white wire to an electrical device that uses more than 2 amps, the gauge will be destroyed and your warranty will be void. If you need more current capability, then you may connect the white (activation) wire to trigger a relay so that you may run an electric fan or electric water pump. You will need to get the wiring diagram from the relay manufacturer. Do not connect the white wire to +12 volts! If more than 2 amps flows through this wire your gauge will be destroyed and the warranty will be void. 5. Connect the Red wire to +12 volts, when your key is on. 6. To program your gauge turn the ignition on and the gauge's pointer will move clockwise until it reaches the preset value. After the pointer has reached it's preprogrammed position you can reprogram the setting for the reading that you desire to be warned at. Once the pointer has reached the new setting, let go of the button, after a few seconds the pointer will then go into gauge mode and the pointer will move to your actual reading. 7. To reprogram it, you must turn the ignition off and start all over again. Simply push and hold the button until you reach the desired set point. After it has jumped to the next mode, the microprocessor will then save this reading into memory. This setting is stored into a special (non-volatile) memory and will not lose this particular data if you disconnect the battery. If you turn the ignition off while the gauge is in program mode, the gauge will NOT remember this new setting and it will revert back to the previous setting. After the gauge has jumped to normal gauge mode this same pushbutton can be used to retrieve the highest and lowest readings. However, if you turn your engine off, this high and low level will be lost, unlike the set point data. 8. To display your high and low readings, you must wait until the gauge has jumped from program mode (only a few seconds each time you apply power) to normal gauge mode. Simply push the button and this will tell the gauge to start recording the highest and lowest readings. The next time you push the button the pointer will move to the high reading, then to the low reading and then back to the actual reading. To erase these readings, you may push and hold the button for 6 seconds or you may turn off your engine. Copyright 2000 Nordskog Performance Products 1120 Yarnell PL. Oxnard, CA 93033 805-483-2411 805-483-2373 fax [email protected]