Monit Rally G-100 Operation & Installation
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Monit Rally G-100 Operation & Installation

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G-100/200 Operation
& Installation

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Summary of Contents for Monit Rally G-100

  • Page 1 G-100/200 Operation & Installation...

  • Page 3: Table Of Contents

    Contents Installation Getting Started GPS Mode Setup Wheel Sensor Mode Setup Fuel Calibration Basic Operation Telemetery Screen Entering a Distance Measurement Units Turning On & Off Advanced Features Customising the Telemetry Screen Using the Sprint Timer Auxiliary Inputs Stage Recorder Troubleshooting...
  • Page 4 GPS+ Overview The G-100/200 can measure distance and speed using either the GPS signal or a traditional wheel speed sensor. For most customers GPS alone will provide excellent results with accuracy comparable to a well calibrated wheel sensor. However, like any GPS system, accuracy can be degraded when operating in heavily built-up areas or under dense forest cover.
  • Page 5 GPS Only Wheel Sensor Only GPS+ Sensor Fusion Mode Note: To use the GPS+ function simply install a wheel sensor as well as the GPS antenna. The software will automatically detect the sensor.

  • Page 7: Installation

    Installation Warning: Installation of the G-100/200 may require modifications to be made to your vehicle’s electrical system. If this is not done correctly, expensive damage may be caused to both the product and your vehicle. It is strongly recommended that you seek the services of a qualified...
  • Page 8 Step 1: Before You Start Check that you have the items shown below. You will also need a selection of tools, wiring equipment, and a suitable place to work. (A) Rally Computer (B) Wiring Loom (C) GPS Antenna and/or Wheel Speed Sensor (ref. page 4) Installation...
  • Page 9 Step 2: Fitting to the Vehicle Securely attach the rally computer to the interior of your vehicle. The most common locations for this are either on the dashboard directly in front of the co-driver or on the passenger door frame. When fitting the device, ensure that: •...
  • Page 10 Step 3: Electrical Connections The G-100/200 connects to your vehicle’s electrical system through the color- coded wiring loom supplied with it. Connect this loom as shown. BLACK WHITE (Aux. A) BROWN (Aux. B) Speed Sensor Connector GREEN Installation...
  • Page 11 Connect to a 12 Volt power source that is able to supply power even when the ignition +12V is turned off. Use a common ground point for all parts of the circuit. Do not use the vehicle’s chassis. (Optional) Attach up to two hand or foot switches to use the Auxiliary Inputs.
  • Page 12 GPS Antenna If GPS is going to be used to measure speed and distance you will need to fit a suitable antenna. There is a range of these available from Monit. The antenna attaches to the device using the SMA connector on the back. Refer to the information supplied with your antenna for detailed instructions.
  • Page 13 Fuel Sender Signal (G-200 only) To use the G-200’s fuel measurement system, connect the output signal from your vehicle’s fuel sender directly to the green wire on the loom. Points to note during installation are: • The G-200 works by measuring the output voltage of your vehicle’s fuel sender.
  • Page 14 Step 4: Final Checks Before you apply power to the system check that all your electrical connections are correct. Also make sure that any exposed wires in the circuit are covered with insulation tape or heat-shrink so they will not short against the chassis. Installation...

  • Page 15: Getting Started

    Getting Started The G-100/200 has an easy to use graphical user interface that makes operation simple and efficient. Read through this section to learn how to quickly setup and configure the unit after powering it up for the first time.

  • Page 16: Gps Mode Setup

    This flashes ‘GPS’ when no lock is available and changes to ‘GPS’ once a signal lock is obtained. Once lock is established the G-100/200 is ready to use. Getting Started - GPS Mode...
  • Page 17 Notes: • During initial power up (cold start), or if the unit has been disconnected for a long period of time, it may take up to 12 minutes to obtain an initial satellite lock. • If GPS+ sensor fusion technology is being used, the wheel sensor will be used while GPS lock is being obtained to provided uninterrupted operation.

  • Page 18: Wheel Sensor Mode Setup

    Wheel Sensor Mode Setup If you only want to use a traditional wheel sensor instead of the GPS system to measure distance and speed you will have to disable the GPS receiver and then perform a calibration of the wheel sensor against a known distance before the unit can be used.
  • Page 19 Distance Calibration If the GPS is not being used, you will need to perform a calibration of the wheel speed sensor before it can be used. The device includes a special calibration wizard that guides you through this process using simple on-screen instructions.

  • Page 20: Fuel Calibration

    Fuel Calibration (G-200 only) The G-200’s fuel measurement system is designed to work with a wide range of tank sizes and shapes. Before it can be used, the system must be calibrated to suit your particular vehicle. This is done using a special calibration wizard that guides you through the process using simple on-screen instructions.
  • Page 21 The calibration wizard works by recording a number of set points as you add fuel to the tank. For best results: • Use at least five set points (up to a maximum of ten). • Add about 5 to 10 litres of fuel between each point Notes: Many vehicles will not give a correct fuel signal unless the ignition is turned on.
  • Page 22 Getting Started...

  • Page 23: Basic Operation

    Basic Operation This section contains information about the features you will most often use while on a rally event. Read through it to familiarize yourself with the product’s main functions and to ensure you get the best out of it while out on a rally stage.

  • Page 24: Telemetery Screen

    Telemetry Screen This is the main screen that appears when the rally computer is powered up and is the one you will use most often while on events. It allows you to easily view your vehicle’s distance, speed, timing and fuel information. Interval Distance Counter...
  • Page 25 Total Distance Counter Second distance counter. Hold the CLR button down for one second to reset. Current Speed The current vehicle speed in kph or mph. Average Speed (G-200 only) The average vehicle speed since the function was last reset. This includes any time spent stationary. Hold the CLR button down for one second to reset.
  • Page 26 Time of Day (G-200 only) The current time in 24-hour format. Use the SET button to adjust the value. Fuel (G-200 only) The current fuel level in litres or gallons. When the vehicle is moving the value may fluctuate as the fuel in the tank moves about.

  • Page 27: Entering A Distance

    Entering a Distance In some situations you may want to set one of the distance counters to a particular starting value. To do this: Select the Set Distance menu. Choose the counter (Interval or Total) that you want to set. Enter the new value.

  • Page 28: Measurement Units

    Measurement Units The device can display distance and fuel information in a number of different measurement units. To change this select Settings > Units. The device does not need to be re-calibrated when these settings are changed. Backlight Intensity When in the Telemetry Screen the intensity of the backlight can be reduced by holding down the MENU button for one second.

  • Page 29: Advanced Features

    Advanced Features Once you’ve mastered the basic functions of the G-100/200, read this section to learn about its more advanced features. Customise the user interface, setup a foot switch and measure the performance of your vehicle—quickly and conveniently.

  • Page 30: Customising The Telemetry Screen

    Customising the Telemetry Screen The lower half of the Telemetry Screen can be used to display up to seven different speed, distance, timing and fuel parameters. To reduce clutter the device allows you to select which parameters you want to use. To enable or disable a parameter select Settings >...
  • Page 31 Sprint Timer The built-in Sprint Timer can be used to accurately measure your vehicle’s 0-100kph (0-60mph) and 0-400m (1/4 mile) * acceleration times. To use the Sprint Timer: Select the Performance menu. Choose the type of sprint you want (0-100kph or 400m*). Bring the vehicle to a halt and press OK to arm the system.

  • Page 32: Auxiliary Inputs

    Auxiliary Inputs The two Auxiliary Inputs can be used to attach external hand or foot switches to the rally computer. These can then be configured in software to perform one of the tasks shown in the table on the next page. To assign a task to an input: Select the Settings menu.
  • Page 33 Task Name Description None The Auxiliary Input is not used. Clear Interval Clears the Interval Distance. Clear Total Clears the Total Distance. Pause Toggles distance counting on and off. Freeze Toggles Freeze mode on and off. When Freeze mode is active, the display is not updated but the counters continue to oper- ate in the background.

  • Page 34: Stage Recorder

    Stage Recorder (G-200 only) This useful feature allows you to record your stage time, distance, average and maximum speed values using an external input switch. It is enabled by configuring the Auxiliary B input for ‘Stage Record’ mode (see page 32). To use the recorder press and hold the external switch for one second while waiting on the start line.
  • Page 35 Speed Alarm (G-200 only) The Auxiliary A port can be used to drive a warning light when the vehicle exceeds a programmable speed. This is ideal for events with speed controls or on touring stages. To activate the feature configure the Auxiliary A port in ‘Speed Alarm’ mode (see page 32) and fit a Monit warning light (available separately).
  • Page 36 Calibration Value Adjustment (GPS disabled) In wheel speed sensor mode the calibration value is stored as the number of pulses produced for every kilometre/mile travelled. If you share the device between vehicles, or change tyre sizes frequently, you may want to view and edit this value manually.
  • Page 37 Counting Direction The distance counters can be configured to count either up or down. To change the direction select Settings > Advanced > Counting. You can also use an external switch to control this setting (page 32). Display Resolution The distance counters normally have a resolution of ten metres. If you require a higher level of accuracy this can be increased to one metre.

  • Page 38: Restoring Factory Defaults

    Restoring Factory Defaults To restore all settings to their default factory values navigate to the About menu and hold down the two buttons on the right of the screen for five seconds. Warning: You will lose all calibration values when this is done. Advanced Features...

  • Page 39: Troubleshooting

    Troubleshooting If you’re having trouble getting fuel or distance measurements working, read through this section for solutions to some common problems. And if you can’t find an answer here, don’t hesitate to contact Monit directly for help.
  • Page 40 I’m using a wheel sensor and the distance measurements are not consistent / increment while stationary. When GPS is disabled the G-100/200 measures distance by counting the pulses produced by a wheel speed sensor. Noise from other parts of your vehicle’s electrical system can interfere with this signal and cause measurement...
  • Page 41 The fuel level changes when I turn my engine on and off The output signal from some fuel senders is proportional to the vehicle’s battery voltage. When the engine is running this voltage is boosted by the alternator and this can cause changes in the fuel reading. To solve the problem: •...

  • Page 42: Error Messages

    Error Messages: ‘Error: No pulses detected’— No pulses are being detected from the wheel speed sensor during calibration. Check your connections and the instructions supplied with the sensor. ‘Error: Too many pulses’ — Too many pulses are being generated by the wheel speed sensor during calibration.
  • Page 43 ‘Error: Invalid Fuel Signal. Refer to user’s manual.’— The fuel sender is not producing monotonic (doesn’t move in one direction) output signal during calibration. To solve the problem: • On many factory fuel tanks the fuel sensor is not very sensitive. Repeat the test but this time add more fuel between each set point.
  • Page 44 © Monit Limited http://www.monitrally.com...

This manual is also suitable for:

G-200

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