Davies Craig TYREGUARD 400 Operating Instructions Manual

TYREGUARD

TYRE GUARD

1

1 Introduction

Congratulations on purchasing the new
TYREGUARD 400 - TYRE PRESSURE MONITORING
SYSTEM (TPMS). This system is a safety system
for monitoring vehicle’s tyre air pressure and
temperature. It consists of external mounted tyre
pressure wireless sensors fitted to the vehicle’s
tyre valve and a hand-held monitor. The sensor will
monitor the tyre’s air pressure and temperature. The
sensor transmits the tyre pressure and temperature
information to the dash-mounted/hand-held monitor.

The monitor can be placed on the dashboard, on
the sun visor or mounted in any convenient place in the vehicle.

2 Function

The monitor’s function is to receive the temperature and pressure information transmitted
from a sensor fitted to each tyre and display this information on the screen in the specific
units of measurement of your choice.

The monitor will emit an alarm when a tyre pressure or temperature varies markedly (refer
pages 8-12) from the targeted tyre pressure and/or temperature. The system will detect
high or low air pressure as well as high temperature or rapid leakage from the tyres.
The monitor will flash the red LED icon and an alarm will sound to remind the operator
to check if the tyres are high or low in air pressure, leakage, high temperature or the
monitor’s battery is low, or there is a problem with a sensor. This advanced tyre monitoring
system offers these great features and benefits, is reliable, lightweight and compact.

SENSOR

MONITOR

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3 Installation & Operating Instructions

The following instructions show the identification of operating buttons of the monitor.

Units Conversion

Temperature Units Conversion

F=9C/5+32
Note: C = Celsius; F = Fahrenheit

Pressure Units Conversion

1 Bar=14.5 psi
1 Bar=100 kPa
1 Bar=1.02 kgf/cm

2

PSI

KPa
Bar

Kgf/cm

2

Pressure

sensor

monitor

TempLeaking

TEMPERATURE CONDITION icon

BATTERY CONDITION icon

Bar icon
KPa icon

PSI icon

Kgf/cm

2

icon

˚C icon
˚F icon

NUMERICAL
INDICATING
SECTION

MONITOR icon

SENSOR icon

PRESSURE CONDITION icon

LEAKAGE icon

C
F

Please ensure the monitor is fully charged and is in the tyre alignment mode before
installing the tyre sensors.

Before installing sensors and setting the monitor, make sure you have inflated the
vehicle’s tyres to your required pressures.

Note: It is recommended to set tyre pressures at those recommended by the manufacturer
listed in the vehicle’s handbook.

“→” button

“

→

” button

SET button

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Tyre alignment mode

Hold down the “

→

” and “→” buttons simultaneously on the monitor for 5 seconds to enter

tyre alignment mode, and press either “

→

” or “→” button to select the specific tyre that

needs to be aligned.

Screw a sensor to the tyre valve stem and the current pressure will be displayed against
the corresponding flashing tyre icon on the screen. Once the tyre is aligned successfully
the green light appears on the monitor. The red LED light appears on the monitor if the
sensor hasn’t been aligned and “- - -” also appears on the monitor.

Note: If the sensor is to be removed from one valve and fitted to another valve, you must
delete the current setting on the monitor and realign this sensor to the new tyre. To delete
an aligned sensor from a tyre, hold down the SET button for 5 seconds.

When you exit the alignment mode, by again holding down the “

→

” and “→”, buttons
simultaneously on the monitor for 5 seconds to check the pressures and temperatures,
the monitor will indicate the data of the selected tyre. Click through to ensure all tyre
pressures and temperature details are in accordance with your requirements. After your
checks are completed, the backlight will go out and the monitor will indicate the tyre
pressure of the selected tyre.

The monitor may initially show abnormalities until you have set your required pressures
and units of measurement. These will be done in the Standard Pressure Setting and unit
selection setting below.

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Installation of the Sensor and anti-theft device

The sensor of TYREGUARD 400 has an anti theft ring
to prevent the sensors being stolen. Firstly, place the
anti-theft ring over the valve stem, with one side of the
inner hexagon facing out, place the hexagon head
of the sensor into the inner hexagon and then screw
down the sensor; finally, place the inner hexagon
screws of the anti-theft device and tighten with the
key provided. Please refer to the right graphics A, B
and C when installing the rings.

It’s very simple to install the sensors. Screw a sensor
to each tyre valve stem as the picture shows.

Note:

1. Always install the sensor when the tyre is cold

2. Please check each tyre valve is not damaged.

3. Check to ensure there are no leaks and the sensors
are firmly secured to each tyre valve.

Installation of the Monitor

The monitor can be mounted using the pedestal or brackets supplied. The monitor can
be fixed to a suitable surface in the vehicle, sun visor, dashboard etc. It has a build-in
lithium battery or you may wish to use a power source from within the vehicle’s power
socket to charge or operate the monitor.