Monit Rally G-100+ User manual

G-100+/200+Operation
& Installation

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Contents
7 Installation
15 Getting Started
16 GPS/GNSS Mode Setup
18 Wheel Sensor Mode Setup
20 Fuel Calibration
23 Basic Operation
24 Telemetry Screen
27 Entering a Distance
28 Measurement Units
28 Turning On & Off
29 Advanced Features
30 Customising the Telemetry Screen
31 Using the Sprint Timer
32 Auxiliary Inputs
34 Stage Recorder
39 Troubleshooting

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GPS/GNSS+ Overview
The G-100+/200+ can measure distance and speed using either
the GPS/GNSS signal or a traditional wheel speed sensor. For most
customers GPS/GNSS alone will provide excellent results with accuracy
comparable to a well calibrated wheel sensor.
However, like any GPS/GNSS system, accuracy can be degraded
when operating in heavily built-up areas or under dense forest cover.
To address this limitation the G-100+/200+ includes unique GPS/
GNSS+ sensor fusion technology. This works by combining the output
signals from a wheel sensor and the GPS/GNSS receiver. While the
GPS/GNSS signal is available the GPS/GNSS+ software continuously
calibrates the wheel sensor in the background. If the GPS/GNSS signal
is subsequently lost operation is automatically switched to the wheel
sensor. The result is uninterrupted high accuracy operation in any
environment without the need to manually calibrate a wheel sensor.
GPS/GNSS Only
Wheel Sensor Only
GPS/GNSS+ Sensor Fusion
Mode
Note: To use the GPS/GNSS+ function simply install a wheel sensor
as well as the GPS antenna. The software will automatically detect the
sensor.

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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 automotive electrician to carry out this work.
Installation

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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 (see page 4)
Installation
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:
It will not come free of its mounts during an accident. There are two•
M4 bosses on the back that can be used to fasten it securely.
It does not interfere with any of the vehicle’s safety equipment.•
The co-driver can operate it comfortably while seated.•
Warning: If the vehicle still has airbags fitted, do not place the device over the
covers from which these are deployed. Doing so could result in serious injury in
the event of a collision.
Installation
(A)
(C)
(B)

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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.
Installation
RED
BLACK
WHITE (Aux. A)
BROWN (Aux. B)
Speed Sensor
Connector
GREEN
Installation
Connect to a 12 Volt power source that is
able to supply power even when the ignition
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. See
Page 12 for more details.
(Optional) Wheel Sensor Connector Details:
BLUE - Signal
ORANGE - +5V
BLACK - 0V
(G-200+ only) Connect to the output of your
vehicle’s fuel sender.
+12V
0V
Monit Speed
Sensor

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Installation Installation
GPS/GNSS Antenna
If GPS/GNSS 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.
Wheel Speed Sensor
If GPS/GNSS is not going to be used, or you want to make use of the GPS/
GNSS+ sensor fusion technology (see Page 4), you will need to supply a wheel
speed signal to the rally computer. There is a special connector on the wiring
loom for this purpose. It will connect directly to the range of wheel sensors
available from Monit, and detailed installation instructions are supplied with
each sensor.
Auxiliary Inputs
These can be used to attach up to two hand or foot switches to the unit. You
can then configure each switch to perform a range of useful functions, such
as clearing the distance or controlling the stopwatch. For most functions a
normally-off momentary type switch should be used.
See page 32 for more information.
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. It can be used with signals that either rise or fall with increasing
fuel level.
If you remove your factory fuel gauge you will need to fit a resistor of•
approximately the same value in its place to power the sender.
Many factory fuel senders will not produce an output signal when the•
ignition is turned off.

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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
Read through this section to learn how to quickly setup and configure
the unit after powering it up for the first time. If you are using GPS
to measure distance and speed go to page 16. If you are using a
traditional wheel speed sensor go to page 18.
Getting Started

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Getting Started - GPS/GNSS Mode
GPS/GNSS Mode Setup (default)
Once you have finished installing the unit and GPS/GNSS antenna apply power
to the unit to start it up. The first menu to appear will prompt you to select
an operating language (you can change this later on). Following this the main
telemetry screen (see page 24) will appear.
Before any measurements can be made the GPS/GNSS receiver must first
obtain a satellite signal lock. To indicate the status of this process an icon is
shown in the lower left corner of the telemetry screen. 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/GNSS Mode
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/GNSS+ sensor fusion technology is being used, the wheel sensor•
will be used when the GPS/GNSS signal is not available to provide
uninterrupted operation. It may take 1-2km after startup before the GPS+
system is initialised.
You can view the status of the GPS/GNSS system by navigating to the ‘GPS
Setup’ item in the main menu.
GPS/GNSS
Status

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Wheel Sensor Mode Setup
If you want to use a traditional wheel sensor instead of the GPS/GNSS
system to measure distance and speed you will have to disable the GPS/
GNSS receiver and perform a calibration of the wheel sensor against a known
distance before the unit can be used. After powering up the unit and selecting
a default operating language (this can be changed later on) the setup can be
performed using the menu system.
To disable the GPS/GNSS receiver, select ‘GPS Setup’ in the main menu and
toggle the ‘Enable’ option to the off position.
Next you will need to perform a calibration. If you already know the pulse/km
calibration value for your vehicle, you can also enter this value directly. Refer to
page 36 for details. Otherwise continue to the next page.
Distance Calibration
If the GPS/GNSS 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.
To calibrate the distance:
Find a piece of road with an accurately known distance. Use a distance of1.
at least one mile/kilometre for best results.
From the Main Menu select Calibration > Cal. Distance to start the2.
calibration wizard.
Follow the instructions on the screen.3.
Note: The device will not lose its calibration if the power supply is disconnected.
Getting Started - Wheel Sensor Mode Getting Started - Wheel Sensor Mode

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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.
To calibrate the fuel system:
Find a safe place to add and remove fuel from your vehicle. To perform1.
the calibration, you will need enough fuel to fill the tank completely and a
5-10 litre container that you can use to measure the amount of fuel being
added.
Empty all the fuel from the tank.2.
From the Main Menu select Calibration > Cal. Fuel to start the calibration3.
wizard.
Follow the instructions on the screen.4.
Getting Started Getting Started
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. The device will not lose its calibration if the power supply is
disconnected.

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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 an event.
Getting Started

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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. Press the
CLR button to reset.
Maximum Speed
The maximum vehicle speed. Hold the CLR button
down for one second to reset.
Stopwatch
Integrated stopwatch. Use the STRT button to start
and stop timing. Hold the same button down for one
second to clear the time.
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.
The upper half of the menu always shows the Interval Distance Counter which
can be reset by pressing the upper right CLR button. The lower half is used
to show all other speed, distance, timing and fuel parameters for your vehicle.
Use the MODE button to cycle through each of these. The parameters available
are described on the next page.
Basic Operation Basic Operation
Interval
Distance
Counter
GPS
Status

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Basic Operation Basic Operation
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.
To reduce clutter, you can disable parameters that you do not want to use. You
can also customise the information displayed on the upper half of the screen.
See page 30 for more information.
Note: Some parameters are disabled by default. You will need to enable them
before they can be selected using the MODE button.
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.1.
Choose the counter (Interval or Total) that you want to set.2.
Enter the new value. Use the ‘+’ and ‘-’ buttons to adjust the highlighted3.
digit and the ‘>’ button to move between digits. When the last digit is
reached press the SET button to finish.
The Set Interval menu can also be accessed by holding down the interval
distance CLR button (top right) for three seconds when in the Telemetry
Screen.

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Basic Operation
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.
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. Repeating this will return it to
full brightness. It can also be adjusted by selecting Settings > Backlight.
Turning On & Off
The device turns off automatically after five minutes of inactivity. Press any of
the buttons or start moving the vehicle to turn it on again. This timer can be
disabled if required (see page 37).

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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.1.
Choose the type of sprint you want (0-100kph or 400m*).2.
Bring the vehicle to a halt and press OK to arm the system.3.
The timer will start automatically when the vehicle starts moving. When4.
the target speed or distance is reached it will stop and display the
acquired time.
* Available on G-200+ model only.
Customising the Lower 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 > Telemetry. A list of available
parameters will appear and selecting one will toggle its status on and off.
Customising the Upper Telemetry Screen
By default the upper half of the Telemetry Screen is occupied by the Interval
Distance Counter, however this can be changed by the user to display; Interval
Distance, Current Speed, *Stopwatch 2, or *Average Speed 2.
To customise the upper display select Settings > Top Display.
* Available on G-200+ model only.
Advanced Features Advanced Features

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Task Name Description
Freeze Toggles Freeze mode on and off.
Stopwatch Controls the stopwatch.
Display Mode Same effect as the MODE button in the Telemetry Screen.
Backlight Dim When the input is held low the backlight intensity is reduced.
Count Up/Dn When the input is held low the distance counters will count
down.
Adjust Distance Up Adds additional distance to the distance counters
Adjust Distance Down Subtracts distance from the distance counters
Remote Option 1 Allows use of Monit 3 button remote. Functions are; Adjust
distance up, Adjust Distance Down, and Count Up/Dn.
Remote Option 2 Allows use of Monit 3 button remote. Functions are; Adjust
distance up, Adjust Distance Down, and Clear Interval counter.
* Clear Average Speed Resets both average speed calculators
* Stopwatch 2 Controls the second stopwatch
* Speed Alarm See page 35.
* Stage Recorder See page 34.
* Available on G-200+ model only.
Auxiliary Inputs
The two Auxiliary Inputs can be used to attach a Monit remote control or
external switches to the rally computer. These can then be configured in
software to perform one of the tasks shown in the following table.
To assign a task to an input:
Select the Settings menu.1.
Select Auxiliary A or Auxiliary B (depending on which switch you want to2.
configure).
Select the task you want from this list and press OK.3.
Advanced Features Advanced Features
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.

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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). Once this is
done a new icon will appear in the main menu allowing you to set the trigger
speed and enable or disable the alarm.
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. This will arm the system and clear the counters
and stopwatch. When the vehicle begins moving the stopwatch will start
automatically. At the end of the stage press the switch again and the stage
information will be displayed and recorded.
You can review the last stage’s information at anytime by navigating to the
‘Stage Record’ display in the main menu.
Advanced Features Advanced Features

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Calibration Value Adjustment (GPS/GNSS 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.
To view the calibration value select Calibration > Value.
To edit the calibration value (only possible if GPS is disabled):
Select Calibration > Value.1.
Press the EDIT button.2.
Enter the new value. Use the ‘+’ and ‘-’ buttons to adjust the highlighted3.
digit and the ‘>’ button to move between digits. When the last digit is
reached press the SET button to finish.
Advanced Features
GPS Adjustment Percentage (GPS/GNSS enabled)
By default when running from GPS/GNSS the G100+/200+ will calculate and
display the true distance travelled. However in some situations you may prefer
that the distance counters display a distance that is not the true distance
travelled. One such situation is when the rally organisers have incorrectly
calibrated their distance measuring device and therfore the event distances are
not truely correct.
With the G100+/200+ you can calibrate your rally computer to the organisers
distances by entering a percentage offset. To do this adjustment select
Calibration > GPS Adjust %
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).
Advanced Features

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Advanced Features
Troubleshooting
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. To change this
select Settings > Advanced > Resolution.
Sleep Timer
The device will automatically enters a low power sleep mode after five minutes
of inactivity. This can be adjusted by selecting Settings > Advanced > Sleep.
Note: Take care to ensure your vehicle’s battery does not run flat if you disable
the Sleep Timer.
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.
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.