Nokian Tyres PLC RSPW-01T Tyre Pressure Monitoring Device User Manual text

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Document ID	324977
Application ID	1zWrlji8lUjAe5RAy4d3sg==
Document Description	user manual text
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	8.23kB (102856 bits)
Date Submitted	2003-05-12 00:00:00
Date Available	2003-07-08 00:00:00
Creation Date	2003-04-03 07:54:52
Producing Software	Acrobat Distiller 5.0.5 for Macintosh
Document Lastmod	2003-05-05 10:46:57
Document Title	user manual text

A1_04_2003_usa 3.4.2003 10:54 Page 1
English -----------------------------------------------1
Français ---------------------------------------------16
Español ---------------------------------------------31
Deutsch ---------------------------------------------47
Italiano ---------------------------------------------62
Nederlands -----------------------------------------76
Dansk -----------------------------------------------91
A1_04_2003_usa 3.4.2003 10:54 Page 2
1 GENERAL ----------------------------------------------------------------------------------------------------------------2
2 WARNINGS--------------------------------------------------------------------------------------------------------------2
3 HOW TO USE THE PRESSURE WATCH ----------------------------------------------------------------------------------3
3.1 SYSTEM COMPONENTS ------------------------------------------------------------------------------------3
3.1.1 Receiver------------------------------------------------------------------------------------3
3.1.2 Tire sensors --------------------------------------------------------------------------------3
3.2 START-UP -------------------------------------------------------------------------------------------------3
3.2.1 Positioning the receiver -------------------------------------------------------------------3
3.2.2 Setting the recommended tire pressure following system installation ------------------4
3.3 USE --------------------------------------------------------------------------------------------------------4
3.4 ALARMS ---------------------------------------------------------------------------------------------------4
3.4.1 Slow repetitive warning bleep and flashing indicator light ------------------------------4
3.4.2 Rapid repetitive warning bleep and flashing indicator light -----------------------------5
3.4.3 What to do when alarm is activated ------------------------------------------------------5
3.5 CONFIGURATION MODE -----------------------------------------------------------------------------------5
3.5.1 Changing the recommended tire pressure -----------------------------------------------5
3.5.2 Configuring the receiver to recognize new tire sensors ----------------------------------6
3.6 CHANGING RECEIVER BATTERY ---------------------------------------------------------------------------6
4 HOW THE SYSTEM OPERATES ------------------------------------------------------------------------------------------7
4.1 CONCEPT --------------------------------------------------------------------------------------------------7
4.2 RECEIVER STANDBY MODE --------------------------------------------------------------------------------7
4.3 ACTIVATION WHEN STARTING JOURNEY ------------------------------------------------------------------7
4.4 MONITORING ----------------------------------------------------------------------------------------------7
4.5 ALARMS ---------------------------------------------------------------------------------------------------8
4.6 AFTER STOPPING DRIVING --------------------------------------------------------------------------------8
5 PROCEDURE DURING POTENTIAL MALFUNCTION --------------------------------------------------------------------8
5.1 IF CONTACT CANNOT BE ESTABLISHED WITH ONE OR MORE TIRE SENSORS ------------------------------8
5.2 IF RECEIVER ALARM IS NOT ACTIVATED EVEN THOUGH TIRE PRESSURE HAS FALLEN --------------------8
5.3 IF RECEIVER ALARM IS ACTIVATED EVEN THOUGH TIRE PRESSURES
ARE AT RECOMMENDED LEVEL ----------------------------------------------------------------------------9
5.4 IF RECEIVER ALARM SIGNALS PRESSURE DROP, BUT IN THE WRONG TIRE --------------------------------9
5.5 REPLACING A DAMAGED TIRE SENSOR --------------------------------------------------------------------9
6 TECHNICAL SPECIFICATIONS -----------------------------------------------------------------------------------------10
7 TERMS OF WARRANTY ------------------------------------------------------------------------------------------------11
8 LIMITATION OF LIABILITY --------------------------------------------------------------------------------------------11
ANNEX A: CHECK LIST ---------------------------------------------------------------------------------------------------12
ANNEX B: TIRE SENSOR AND RECEIVER INSTALLATION INSTRUCTIONS FOR TIRE FITTERS -------------------------13
General installation information ----------------------------------------------------------------------------13
Parts and tools necessary for installation -------------------------------------------------------------------13
Stages of installation ----------------------------------------------------------------------------------------13
Removing a tire sensor --------------------------------------------------------------------------------------13
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1 General
The RoadSnoop Pressure Watch is a system that monitors the pressure and temperature of a car’s tires. If the pressure or temperature of one or
more tires changes from the reference pressure, the system alerts the driver with a flashing indicator light and warning bleeps. The system
allows for normal changes in tire pressure caused by fluctuating temperatures. Pressure Watch helps the driver to ensure that the correct tire
pressure is maintained, thus enabling prolonged tire life and reduced fuel consumption. Data from the tire sensors located in the tires is transmitted
to the receiver via radio waves.
NOTE! PLEASE READ ALL THE INSTRUCTIONS AND WARNINGS IN THIS MANUAL CAREFULLY
2 Warnings
1. READ AND UNDERSTAND THIS USER’S MANUAL AND ALL WARNINGS AND INSTRUCTIONS IN IT BEFORE USING THE
PRESSURE WATCH SYSTEM. OPERATION OF THE VEHICLE IN A MANNER INCONSISTENT WITH THE REQUIREMENTS OF THIS
MANUAL CAN CAUSE TIRE DAMAGE, ACCIDENTS AND SERIOUS BODILY INJURY.
2. THE PRESSURE WATCH SYSTEM ACTIVATES ONLY AFTER THE VEHICLE IS PUT IN MOTION AND ITS TIRES HAVE REACHED
WARNING OPERATING SPEED AND TEMPERATURE. IT IS THE DRIVER’S RESPONSIBILITY TO EXAMINE THE CONDITION AND ASSURE
CORRECT INFLATION OF THE TIRES BEFORE DRIVING THE VEHICLE. OPERATION OF THE VEHICLE WITH IMPROPER TIRE
PRESSURE CAN CAUSE TIRE DAMAGE, ACCIDENTS AND SERIOUS BODILY INJURY. THE PRESSURE WATCH SYSTEM DOES NOT PREVENT THE VEHICLE FROM
STARTING WITH DEFECTIVE TIRES OR WITH INCORRECT TIRE PRESSURES.
3. THE PRESSURE WATCH SYSTEM MONITORS ONLY GRADUAL TIRE PRESSURE CHANGES, WHILE THE VEHICLE IS IN
DANGER OPERATION. DO NOT RELY UPON THE PRESSURE WATCH SYSTEM TO DETECT SUDDEN TIRE DAMAGE, PUNCTURES, OR
SUDDEN PRESSURE LOSS DUE TO ACCIDENTAL CAUSES. THE RECEIVER RECEIVES DATA FROM THE SENSORS AT REGULAR
INTERVALS. THE DEVICE WILL NOT PROVIDE ANY WARNING IN THE EVENT OF A SUDDEN LOSS OF TIRE PRESSURE.
4. THE PRESSURE WATCH SYSTEM MONITORS ONLY GRADUAL TIRE PRESSURE CHANGES, WHILE THE VEHICLE IS IN
DANGER OPERATION. OTHER RADIO TRAFFIC IN THE FREQUENCY USED BY THE SYSTEM MAY PREVENT THE PROPER TRANSFER OF
INFORMATION. DO NOT RELY UPON THE PRESSURE WATCH SYSTEM TO DETECT SUDDEN TIRE DAMAGE, PUNCTURES, OR
SUDDEN PRESSURE LOSS. THE DEVICE WILL NOT PROVIDE ANY WARNING IN THE EVENT OF DISCONTINUED OR IMPROPER TRANSFER OF INFORMATION.
5. ENSURE PROPER INSTALLATION BY A QUALIFIED TECHNICIAN FOR PROPER CONTACT BETWEEN SENSORS AND RECEIVER.
CAUTION IMPROPER INSTALLATION CAN CAUSE THE RECEIVER TO HAVE NO DATA AND THUS FAIL TO PROVIDE NECESSARY WARNINGS
OF LOW OR HIGH PRESSURE. ONLY SENSORS IN RADIO CONTACT WITH THE RECEIVER WILL TRANSMIT DATA.
6. DO NOT LOOK AT OR ADJUST THE PRESSURE WATCH DISPLAY WHEN THE VEHICLE IS MOVING. TO EXAMINE OR ADJUST
DANGER THE DISPLAY, SAFELY STOP THE VEHICLE. USE OF THE PRESSURE WATCH SYSTEM WHILE DRIVING CAN LEAD TO DISTRACTION
AND ACCIDENTS. YOU CAN BECOME DISTRACTED WHILE: PAYING ATTENTION TO THE RECEIVER; OPERATING THE RECEIVER
WHILE DRIVING; OR BECAUSE YOU HAVE PLACED THE RECEIVER IN AN UNSAFE OR IMPROPER LOCATION.
7. THE PRESSURE WATCH SYSTEM EMITS WARNING LIGHT AND SOUND. DO NOT PLACE THE RECEIVER IN A LOCATION
DANGER WHERE ITS WARNING CANNOT BE SEEN OR HEARD. THE WARNING SOUND MAY NOT BE HEARD OR THE WARNING LIGHT
MAY NOT BE SEEN BY YOU IF THE RECEIVER IS PLACED IMPROPERLY.
8. THE PRESSURE WATCH SYSTEM MUST BE INSTALLED AND MAINTAINED BY A TRAINED PROFESSIONAL FOLLOWING
WARNING THESE INSTRUCTIONS. IMPROPER INSTALLATION OF THE SYSTEM CAN CAUSE MALFUNCTIONS AND TIRE DAMAGE,
ACCIDENTS, AND SERIOUS BODILY INJURY.
9. THE PRESSURE WATCH SYSTEM ONLY MONITORS THE VEHICLE’S ACTUAL TIRE PRESSURE AS COMPARED TO THE REFERENCE
CAUTION PROGRAMMED BY THE USER. IT IS THE DRIVER’S RESPONSIBILITY TO SET THE REFERENCE PRESSURE IN ACCORDANCE WITH
THE INSTRUCTIONS OF THE TIRE AND AUTOMOBILE MANUFACTURER. IMPROPER PROGRAMMING OF THE REFERENCE PRESSURE
CAN CAUSE TIRE DAMAGE, ACCIDENTS AND SERIOUS INJURY. THE PRESSURE WATCH SYSTEM ONLY MONITORS CERTAIN CHANGES IN TIRE PRESSURE AND
ONLY COMPARES THOSE PRESSURES TO USER CALIBRATED REFERENCE PRESSURES. THE SYSTEM DOES NOT SHOW THE ACTUAL TIRE PRESSURES.
10. SET THE RECEIVER TO ITS "CONFIGURATION MODE" ONLY IN LOW TRAFFIC AREAS. ATTEMPTING TO PROGRAM THE
CAUTION RECEIVER WITH REFERENCE TIRE PRESSURES IN THE VICINITY OF OTHER VEHICLES OR ANOTHER PRESSURE WATCH SYSTEM
MAY INTERFERE WITH ANOTHER SYSTEM’S SIGNALS AND CAUSE A PRODUCT MALFUNCTION.
11. DO NOT USE THE PRESSURE WATCH SYSTEM IN RACE VEHICLES OR IN ANY SITUATION WHERE THE SPEED OF THE
WARNING VEHICLE WILL EXCEED 140 MILES PER HOUR. IN SUCH A CASE THE SENSORS MAY BECOME LOOSE AND CAUSE SERIOUS
DAMAGE, ACCIDENT OR BODILY INJURY.
12. THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY INTERFERENCE CAUSED BY UNAUTHORIZED MODIFICATIONS TO
WARNING THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE USER’S AUTHORITY TO OPERATE THE EQUIPMENT.
CAUTION
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3 How to use the Pressure Watch
3.1 SYSTEM COMPONENTS
The packet, as purchased, contains the following parts:
• Receiver (figure 1)
• Receiver battery (figure 3B not in 12V version)
• Four tire sensors (figure 2A)
• Four tire sensor securing bands (figure 2A)
• Four RoadSnoop valve caps (figure 2B)
• Four valve rings, each numbered differently (figure 2C)
• Receiver flexible securing band
• Manual
3.1.1 Receiver
The receiver is equipped with a button (figure 1C), a bleeper, four yellow tire indicator lights (figure 1B) and one twocolor status indicator light (figure 1A) that can shine green or red depending on the situation, and a configuration
button (figure 1D). The indicator lights provide an analysis of the system and tire situation, as described below. The
configuration of the indicator lights on the front panel of the receiver does not match the position of the sensors under
the car. Pressing the button enables the driver to check the system status and to confirm potential alarms.
3.1.2 Tire sensors
Each tire sensor comprises a sensor enclosed in plastic casing, a battery and a radio transmitter. The tire sensors measure
pressure and temperature and recognize tire rotation. Tire sensors only transmit data when the vehicle is in motion.
Each tire (excluding the spare tire) has its own sensor, which is secured, by a tire fitter, onto the wheel rim using a
stainless steel band. The system will only work correctly if the car is fitted with four sensor units, each with its own
individual number. The identically numbered valve rings indicate which sensor is in which tire. These numbers correspond
to the numbered tire indicator lights on the receiver.
TIRE SENSORS MAY ONLY BE FITTED BY A TRAINED FITTER FROM A DEALER THAT SELLS THE
WARNING PRESSURE WATCH, FOLLOWING THE INSTALLATION INSTRUCTIONS IN THIS MANUAL.
3.2 START-UP
NOTE! PLEASE READ ALL THE INSTRUCTIONS AND WARNINGS IN THIS MANUAL CAREFULLY BEFORE START-UP
3.2.1 Positioning the receiver
Position the receiver, using the flexible securing band, to the upper edge of the driver’s sun visor, on the center side
of the car. Do not position the receiver next to the area on the sun visor where the mirror is located (on either side)
as the mirror may contain metal parts.
The receiver may be fixed (e.g. with adhesive tape) elsewhere on the dashboard, provided that it can easily be checked
(➔ 5.1 If contact cannot be established with one or more tire sensors).
POSITIONING THE RECEIVER ON A SURFACE THAT CONDUCTS ELECTRICITY (E.G. METAL) MAY
WARNING INTERFERE WITH THE FUNCTIONING OF ITS ANTENNA AND MAY IMPEDE RECEPTION OF DATA
FROM THE TIRE SENSORS.
THE RECEIVER MUST BE POSITIONED WHERE IT CAN BE EASILY CHECKED. THE RECEIVER MUST
WARNING NOT DISTRACT THE DRIVER’S ATTENTION FROM CONCENTRATING ON DRIVING. IF THE RECEIVER
OR ITS FUNCTIONS REQUIRE THE DRIVER’S ATTENTION, THE DRIVER MUST STOP THE CAR.
AT START-UP YOU MUST ENSURE THAT THE TIRE PRESSURES ARE AT THE CAR MANUFACTURER’S
WARNING RECOMMENDED VALUES.
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3.2.2 Setting the recommended tire pressure following system installation
Place the battery, the right way around, into the receiver as indicated in the directions in the battery compartment
(12V version is connected to the vehicle’s electrical system). Following initial activation, the receiver settings are the
factory settings, i.e., the pressure value for each tire is 22 PSI (1.5 bar). To indicate this, the Status indicator light (figure
1A) will flash red while the car is in motion. In order to set your car’s recommended tire pressures into the receiver
memory, put the receiver into configuration mode:
1. Check that the tires are inflated to the pressures recommended by the car manufacturer.
2. Press the configuration button (figure 1D) using the end of a paper clip, etc., until the device emits a short bleep.
The status indicator light (figure 1A) will flash green rapidly to indicate that the device is in configuration mode.
3. Drive the vehicle at a sufficient speed to ensure that the tire sensors are activated (approx. 13 mph (20 km/h)) and
establish contact, after a short delay, with the receiver.
4. The receiver sets the tire pressures as the reference pressures.
5. When the receiver emits a short bleep and the status indicator light stops flashing green rapidly, the receiver has
successfully set the new reference pressures.
NOTE! IN ORDER FOR CONFIGURATION TO SUCCEED, THE RECEIVER MUST ESTABLISH CONTACT WITH ALL FOUR TIRES,
AND THE PRESSURE IN EACH TIRE MUST BE OVER 22 PSI (1.5 BAR).
NOTE! IF, AFTER BEING IN CONFIGURATION MODE, THE STATUS INDICATOR LIGHT FLASHES RED DURING DRIVING, CONFIGURATION HAS FAILED AND THE DEVICE HAS RESET TO THE DEFAULT FACTORY SETTINGS (22 PSI (1.5 BAR)). PUT THE
RECEIVER IN CONFIGURATION MODE AGAIN BY PRESSING THE CONFIGURATION BUTTON.
NOTE! PREVIOUSLY RECORDED REFERENCE PRESSURE VALUES AND SENSOR NUMBERS WILL BE RETAINED IN THE RECEIVER’S MEMORY AFTER CHANGING THE BATTERY, SO THERE IS NO NEED TO SET THE RECEIVER TO CONFIGURATION MODE
FOLLOWING A BATTERY CHANGE.
3.3 USE
When the car is set in motion the tire sensors are activated and, after a short delay, they establish contact with the
receiver. During this time, the lights of the tire sensors which have not yet established contact with the receiver will
flash. When all of the tire indicator lights (figure 1B) have gone out, contact has been established and the tire pressures
and temperatures are within target value parameters. If you wish to ensure that the receiver is switched on, press the
button (figure 1C) briefly. If the receiver is in contact with all of the tire sensors and the tire pressures and temperatures
are within reference values, the Status indicator light (figure 1A) will shine green for a moment. If contact with a tire
sensor has not yet been established, the Status indicator light will shine red for a moment. If the receiver has been
switched off, it will switch itself on and the status indicator light will shine red for a moment. If the receiver does not
react when the button is pressed, the battery may be empty (➔ 3.6 Changing receiver battery).
3.4 ALARMS
The receiver activates an alarm if the pressure values in one or more tires change from the previously set reference
values. Tire sensor overheating will also activate the alarm.
WHEN THE ALARM IS ACTIVATED, ALWAYS CHECK THE PRESSURE OF EACH TIRE IMMEDIATELY.
WARNING THIS IS ABSOLUTELY NECESSARY NOT ONLY TO ENSURE A SAFE JOURNEY, BUT ALSO TO ENSURE
THE CONTINUING FUNCTIONING OF THE SYSTEM AND TO KEEP THE ALARM FROM BEING ACTIVATED AGAIN IN A SHORT
SPACE OF TIME.
NOTE! IF THE RECOMMENDED PRESSURES FOR YOUR VEHICLE ARE HIGHER THAN THE HIGHEST PRESSURES THAT CAN BE
MEASURED BY THE TIRE SENSORS (50 PSI (3.5 BAR)), THE ALARM WILL NOT BE ACTIVATED WHEN THOSE PRESSURES
FALL BY 10%, BUT ONLY WHEN TIRE PRESSURE FALLS BENEATH 45 PSI (3.2 BAR).
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3.4.1 Slow repetitive warning bleep and flashing indicator light
An alarm is activated for a tire if its pressure has fallen more than 10% below the reference value or its temperature
is over 176°F (80°C). In this case:
• The Status indicator light (figure 1A) is red and flashes slowly.
• The indicator light for the tire that activated the alarm (figure 1B) flashes in time with the status indicator light.
• The receiver emits warning bleeps in time with the indicator lights.
The warning bleep can be switched off by pressing the receiver button briefly. The indicator lights will not stop flashing
until the change of pressure/heat that caused the alarm has been rectified. If another tire activates an alarm, the
indicator light for the tire will begin to flash and the warning bleeps will start again.
3.4.2 Rapid repetitive warning bleep and flashing indicator light
An alarm is activated for a tire if its pressure has fallen more than 20% below the reference value or its temperature
is over 212°F (100°C). In this case:
• The status indicator light is red and flashes rapidly.
• The indicator light for the tire that activated the alarm flashes in time with the status indicator light.
• The receiver emits warning bleeps in time with the indicator lights.
The warning bleep can be switched off as described above.
3.4.3 What to do when alarm is activated
1. Stop the car as soon as it is safe to do so.
2. Check and rectify the tire pressures so that they correspond to the car manufacturer’s recommended values, or allow
the overheated tire to cool. If you rectify the tire pressure within 15 minutes of stopping, the alarm will stop and the
receiver will return to monitoring mode.
3.5 CONFIGURATION MODE
USER PROGRAMMED REFERENCE TIRE PRESSURES MUST BE ADJUSTED ACCORDING TO THE INSWARNING TRUCTIONS PROVIDED BY THE TIRE AND AUTOMOBILE MANUFACTURER EACH TIME THE VEHICLE’S
ACTUAL TIRE PRESSURE IS ADJUSTED OR CHANGED. FAILURE BY THE USER TO PROPERLY RECALIBRATE THE REFERENCE
TIRE PRESSURES IN THIS CIRCUMSTANCE CAN CAUSE THE PRESSURE WATCH SYSTEM TO MALFUNCTION. CHANGING THE
TIRE PRESSURES REQUIRES THE SETTING OF NEW REFERENCE PRESSURES AFTERWARDS.
FOR TRAFFIC SAFETY REASONS, THE RECEIVER MUST BE SET TO CONFIGURATION MODE WHEN
WARNING THERE IS AS LITTLE TRAFFIC AS POSSIBLE IN THE IMMEDIATE VICINITY. THIS ALSO HELPS ENSURE
THAT THE RECEIVER DOES NOT RECEIVE DATA FROM THE PRESSURE WATCH OF A NEIGHBORING CAR.
NOTE! THE RECEIVER IS IN CONFIGURATION MODE FOR A MAXIMUM OF 9 MINUTES. THE RECEIVER WILL NOT SET NEW
REFERENCE TIRE PRESSURES IF IT DOES NOT ESTABLISH CONTACT WITH ALL FOUR TIRE SENSORS OR IF THE PRESSURE
IN THE TIRES IS UNDER 22 PSI (1.5 BAR). IN THIS CASE IT WILL RESET TO THE DEFAULT FACTORY SETTINGS (22 PSI (1.5
BAR)) AND THE STATUS INDICATOR LIGHT WILL FLASH RED WHILE THE CAR IS IN MOTION.
3.5.1 Changing the recommended tire pressure
If you are driving at high speeds, with a heavy load or towing a trailer you should increase the tire pressures in
accordance with the car manufacturer’s recommendations. These increased tire pressures must be recorded into the
receiver’s memory as new reference pressures, so that the receiver alarm will be activated, sufficiently early, in case of
a pressure drop. (➔3.4 Alarms).
Setting the receiver to configuration mode:
1. Check that the tires are inflated to the pressures recommended by the car manufacturer.
2. Press the configuration button (figure 1D) using the end of a paper clip, etc., until the device emits a short bleep.
The status indicator light (figure 1A) will flash green rapidly to indicate that the device is in configuration mode.
A1_04_2003_usa 3.4.2003 10:54 Page 7
3. Drive the vehicle at a sufficient speed to ensure that the tire sensors are activated (approx. 13 mph (20 km/h)) and
establish contact, after a short space of time, with the receiver.
4. The receiver sets the tire pressures as the reference pressures.
5. When the receiver emits a short bleep and the Status indicator light stops flashing green rapidly, the receiver has
successfully set the new reference pressures.
If, after being in configuration mode, the Status indicator light flashes red during driving, configuration has failed and
the device has reset to the default factory settings (22 PSI (1.5 bar)).
Put the receiver in configuration mode again by pressing the configuration button.
3.5.2 Configuring the receiver to recognize new tire sensors
It is necessary to configure new tire sensors if one or several defective sensors are replaced.
REPLACEMENT OF A MALFUNCTIONING SENSOR MAY ONLY BE CARRIED OUT BY A TRAINED TIRE
WARNING FITTER FROM A DEALER THAT SELLS THE PRESSURE WATCH, FOLLOWING THE INSTALLATION
INSTRUCTIONS IN THIS MANUAL.
After fitting a new tire sensor, follow the procedure above (➔ 3.5.1. Changing the recommended tire pressure) i.e.:
1. The receiver will try to establish contact with the sensors it already recognizes within approximately 5 minutes but
if any of them are not found it will reconfigure 1-4 new sensors (numbered 1-4).
2. When all of the tire indicator lights (figure 1B) have gone out the receiver emits a small bleep and the Status
indicator light stops flashing green rapidly. The device has now configured and accepted the new tire sensors.
If the Status indicator light flashes red during driving, configuration has failed. Put the receiver in configuration mode
again.
3.6 CHANGING RECEIVER BATTERY (not in 12V version)
When the receiver battery is almost empty, the device will indicate this by emitting three bleeps every five minutes
or so.
Change the battery. Use a fresh RoadSnoop battery or a CR2 3V battery (so-called ’camera battery’). Please note that
battery life of different CR2 batteries available on the market may vary.
NOTE! IN EXTREMELY COLD TEMPERATURES THE RECEIVER MAY INCORRECTLY INDICATE THAT THE BATTERY IS ALMOST
EMPTY. IN ORDER TO CLARIFY HOW MUCH BATTERY LIFE IS LEFT, PUT THE RECEIVER IN ROOM TEMPERATURE SURROUNDINGS. IF THE WARNING BLEEP SOUNDS WHEN THE RECEIVER HAS WARMED UP, THE WARNING IS VALID AND THE BATTERY
MUST BE CHANGED.
Changing the battery:
1. Open the battery cover (figure 3C) on the receiver.
2. Remove the battery carefully (figure 3B).
3. Place the new battery between the springs. Ensure that the battery is the right way around.
4. Close the battery cover.
When the car is set in motion the tire sensors are activated and, after a short delay, they establish contact with the
receiver. Previously recorded reference pressure values and sensor numbers will be retained in the receiver’s memory
after changing the battery, so there is no need to set the receiver to configuration mode following a battery change.
THE RECEIVER BATTERY IS A DISPOSABLE BATTERY. IF INAPPROPRIATELY HANDLED, THE BATTERY
WARNING MAY OVERHEAT OR IGNITE. DO NOT ATTEMPT TO RECHARGE OR SHORT CIRCUIT THE BATTERY.
DO NOT DISASSEMBLE THE BATTERY. DO NOT HEAT OR BURN THE BATTERY. DO NOT STORE THE BATTERY IN DIRECT
SUNLIGHT OR IN HIGH TEMPERATURES. USED BATTERIES MUST BE DISPOSED OF APPROPRIATELY.
NOTE! USE ONLY CR2 TYPE BATTERIES OR ROADSNOOP BATTERY (SAME AS BATTERY SUPPLIED WITH ORIGINAL
EQUIPMENT).
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4 How the system operates
4.1 CONCEPT
Data is transferred between the tire sensors and the receiver via the wireless radio transmitters and receiver, which
operate at a frequency of 433.92 MHz. The tire sensors measure and send pressure and temperature data and their
own sensor number data to the receiver at regular intervals. The receiver operates on the basis of the temperaturecorrected pressure value, so a reduction in tire pressure due to an external drop in temperature will not activate the
alarm unnecessarily.
NOTE! OTHER RADIO TRAFFIC OPERATING IN THE SAME FREQUENCY RANGE AS THE SYSTEM MAY SOMETIMES PREVENT
DATA TRANSMISSION, AND SOME OF THE SIGNALS SENT BY THE TIRE SENSORS MAY NOT BE RECEIVED. PLEASE NOTE
THAT THE SYSTEM IS INTENDED FOR LONG-TERM PRESSURE MONITORING AND CANNOT NECESSARILY PROVIDE ALERTS
FOR SUDDEN CHANGES IN TIRE PRESSURE.
4.2 RECEIVER STANDBY MODE
When there is a working battery in the receiver it is always in standby mode, so it checks, at regular intervals, whether
the tire sensors are sending data. When the car is parked and stationary, the sensors are deactivated. The numbers of
the sensors are recorded in the memory of the receiver.
4.3 ACTIVATION WHEN STARTING JOURNEY
The motion detectors in the tire sensors activate the sensors when the car’s speed exceeds approx. 13 mph (20 km/h).
When the receiver registers that one of the tire sensors it recognizes is sending data it, too, activates and is ready to
receive data from the other three recognized tire sensors. To indicate this, the lights for the tire sensors (figure 1B)
which have not yet sent data to the receiver flash slowly. During the time delay, the tires for which data has been
received are monitored normally.
It can take 5 minutes before the receiver’s active detection period and the tire sensors’ initial data transmission coincide
and contact is established. The activation of the receiver can be speeded up by briefly pressing the button (figure 1C).
4.4 MONITORING
In monitoring mode, the receiver receives pressure and temperature data from each tire sensor every minute on
average. If the receiver does not receive data from a tire sensor for 5 minutes, the tire indicator light for that tire sensor
will begin to flash.
4.5 ALARMS
The reference tire pressure values are set into the receiver’s memory whenever the receiver has last been set to
configuration mode. If it has never been set to configuration mode, or if previous configuration has failed, the settings
in the receiver will be the factory settings (➔ 3.5 Configuration mode). The receiver obtains the pressure and temperature values from the tire sensors and activates an alarm if the parameters for activating the alarm are exceeded.
(➔ 3.4 Alarms). The accuracy of the alarm parameters depends on the measuring accuracy of the tire sensors
(➔ 6 technical specifications).
The pressure measured by the tire sensors is the prevailing tire pressure and the temperature measured is the air
temperature near to the wheel rim. A high temperature warning does not necessarily mean that a tire has overheated,
but that the temperature of a tire sensor has risen to a level that could hamper its functioning or increase its potential
to be damaged. Do what every alarm situation requires, i.e., stop and check the situation. If overheating has occurred,
allow the tire to cool down.
A1_04_2003_usa 3.4.2003 10:54 Page 9
4.6 AFTER STOPPING DRIVING
After coming to a halt, the tire sensors are still active for 15 minutes. After this, the sensors deactivate and the receiver
loses contact with them. Contact with the tire sensors will also be cut if the receiver is removed beyond the range of
the sensor radio transmitters (approx. 30 feet (10 meters)). When contact with all four tire sensors is lost, the receiver
goes into standby mode and the indicator lights go out.
NOTE! IF YOU DRIVE PARTICULARLY SLOWLY, E.G., IN A TRAFFIC JAM, THE TIRE SENSORS MAY DEACTIVATE. THE SENSORS
WILL REACTIVATE AUTOMATICALLY WHEN YOUR DRIVING SPEED EXCEEDS APPROX. 13 MPH (20 KM/H).
5 Procedure during potential malfunction
WHEN MALFUNCTIONS OCCUR, PLEASE READ ALL THE INSTRUCTIONS AND WARNINGS IN THIS
WARNING MANUAL CAREFULLY.
5.1 IF CONTACT CANNOT BE ESTABLISHED WITH ONE OR MORE TIRE SENSORS
The position of the receiver affects its capacity to establish contact with the tire sensors. In some vehicles the glove
compartment, door storage compartments or metal-surfaced shelves are unsuitable places to keep the receiver.
Generally the best places to position the receiver are the driver’s sun visor or shelves and compartments visible to the
driver. A good solution, both for radio contact and checking, is to attach the receiver to the dashboard with adhesive
tape. If contact is not established with one or more tires, try moving the receiver somewhere else or positioning it
slightly differently in the front of the car. Do not, however, position the receiver so that it obstructs driving, hinders
the driver’s view of the road or handling of the controls or makes it impossible to change the battery (not in 12V
version).
When the car is stationary, an individual sensor may be in a position that stops it from establishing contact with the
receiver. Contact will, however, be established again when the wheel starts turning. If the receiver is repeatedly unable
to establish contact with a particular tire sensor, it could be because the receiver does not recognize the unit in question,
or because the unit is defective or its battery is almost empty. Ensure that the tire pressures correspond to the
manufacturer’s recommended levels and set the receiver to configuration mode (➔ 3.5 Configuration mode). If the
malfunction persists, the sensor must be replaced (➔ 5.5 Replacing a damaged tire sensor).
5.2 IF RECEIVER ALARM IS NOT ACTIVATED EVEN THOUGH TIRE PRESSURE HAS FALLEN
The reference tire pressure values in the receiver’s memory may be too low. If the system does not activate the alarm
even though tire pressures are too low, check the tire pressure, e.g., at a service station pressure meter. After this, set
the checked tire pressures as the new reference values. (➔ 3.5 Configuration mode).
IF THE REFERENCE VALUES RECORDED INTO THE SYSTEM ARE LOWER THAN THOSE RECOMMENDED
WARNING BY THE MANUFACTURER, THE RECEIVER WILL NOT NECESSARILY ACTIVATE AN ALARM IN TIME.
THE USER MUST ENSURE THAT THE RECEIVER IS NOT PUT INTO CONFIGURATION MODE UNLESS NECESSARY (➔ 3.5
CONFIGURATION MODE), AND THAT THE PRESSURE GAUGE USED TO SET THE REFERENCE TIRE PRESSURES, IS SUFFICIENTLY
ACCURATE.
THE SYSTEM ONLY MONITORS THOSE TIRES CONTAINING SENSORS THAT HAVE ESTABLISHED
WARNING CONTACT WITH THE RECEIVER. IF THE TIRE PRESSURE HAS FALLEN WHILE THE CAR IS STATIONARY,
THE SYSTEM WILL ONLY ACTIVATE AN ALARM WHEN THE TIRE SENSOR HAS ESTABLISHED CONTACT WITH THE RECEIVER.
IF THE TIRE SENSOR BATTERY IS EMPTY, CONTACT WILL NOT BE ESTABLISHED.
THE TIRE PRESSURE MAY POTENTIALLY FALL SO RAPIDLY THAT THE SYSTEM DOES NOT HAVE
WARNING TIME TO REACT BEFORE THE DRIVER HIMSELF BECOMES AWARE OF THE SITUATION. THIS MAY
BE THE CASE, FOR EXAMPLE, IF A TIRE BURSTS.
A1_04_2003_usa 3.4.2003 10:54 Page 10
5.3 IF RECEIVER ALARM IS ACTIVATED EVEN THOUGH TIRE PRESSURES ARE AT RECOMMENDED LEVEL
The reference tire pressure values recorded in the system may be incorrect. Rectify the situation by setting the checked
tire pressures as the reference values (➔ 3.5 Configuration mode). If the same situation occurs again, the tire unit
that activates the alarms is probably defective and must be replaced (➔ 5.5 Replacing a damaged tire sensor).
If the tire temperature changes very rapidly (e.g. car wash or heavy rain fall), the receiver may give a false alarm, which
ends automatically when the temperature stabilizes.
NOTE! ALWAYS CHECK TIRE PRESSURES USING A RELIABLE GAUGE.
5.4 IF RECEIVER ALARM SIGNALS PRESSURE DROP, BUT IN THE WRONG TIRE
If the tire activating the alarm and the numbered tire indicator light (figure 1B) on the receiver do not correspond
to each other, the position of the valve rings (figure 2C) indicating the location of the corresponding tire sensors may
have been changed. You can rectify the situation by letting air out of each tire in turn, one by one. When the receiver
activates the alarm you know which tire the alarm corresponds to and you can, accordingly, put the correct valve ring
on that tire. You can do this within 15 minutes after stopping the car, as the tire sensors are still active for that time.
Please note, however, that the tire sensors may only transmit data approximately every 60 seconds or so, in which case
it might take that amount of time before the receiver registers from which tire you have reduced pressure. When you
have finished, fill the tires to manufacturer’s recommended levels with a pressure gauge at a service station or equivalent.
5.5 REPLACING A DAMAGED TIRE SENSOR
If the receiver is not able, over several journeys, to establish contact with a particular tire sensor; or if a sensor has
activated several unnecessary alarms, the sensor is either broken or its battery is almost empty. In these cases, the tire
sensor must be replaced. The tire sensor battery cannot be changed, so the whole sensor must be replaced.
A specialist tire fitter can replace the defective tire sensor with a new unit numbered exactly the same (1-4, figure
2A) as that of the tire sensor being replaced. The same car must not contain two sensors with the same number. This
would prevent the system from functioning correctly, as the receiver would not be able to differentiate one sensor
from another. Once a new tire sensor has been installed, the receiver must be set to configuration mode
(➔ 3.5 Configuration mode).
INSTALLATION OF TIRE SENSORS MAY ONLY BE CARRIED OUT BY A TRAINED TIRE FITTER FROM
WARNING A DEALER THAT SELLS THE PRESSURE WATCH, FOLLOWING THE INSTALLATION INSTRUCTIONS IN
THIS MANUAL (ANNEX B: TIRE SENSOR INSTALLATION INSTRUCTIONS FOR TIRE FITTERS).
A1_04_2003_usa 3.4.2003 10:54 Page 11
6 Technical specifications
RECEIVER
Length:
Width:
Height:
Mass:
Battery type:
Operating voltage:
Battery life:
Range of operating temperature:
Factory settings:
2.8’’ (70 mm) ( + 2.8’’ (70 mm) flexible part or 6.5 feet
(2000 mm) electric lead in 12V version)
1.8’’ (46 mm)
0.8’’ (20 mm)
1.4 ounces (40 g)
(containing battery or voltage-reducing electronics in 12V version)
CR2 3V or RoadSnoop battery
(same as battery supplied with original equipment)
3.0 V (CR2), 3.6 V (RoadSnoop battery)
6 months, depending on use
-4... +176°F (-20... +80(C)
recommended pressure 22 PSI (1.5 bar)
TIRE SENSOR
Length:
Width:
Height:
Mass:
Battery type:
Operating voltage:
Battery Life:
Range of operating temperature:
Pressure range:
Pressure measurement accuracy:
2.5’’ (64 mm)
1.1’’ (28 mm)
0.5’’ (13 mm) (1.6’’ (42 mm) measured from tip of antenna)
0.9 ounces (25 g)
CR2450N 540 mAh (not changeable)
3.0 V
approx. 90,000 miles (150,000 km), depending on circumstances
-40... +257°F (-40... +125(C)
100...450 kPa (14.5...65 PSI (1.0...4.5 bar)) absolute pressure)
±12 kPa (±1.7 PSI (±0.12 bar) in temperature range of -40...+212°F
(-40...+100°C))
Temperature measurement accuracy:
±11°F (±6 °C) (in temperature range of -40...+248°F (-40...+120°C))
Activation speed:
approx. 13 mph (20 km/h) depending on composition of wheel rim/tire
Maximum permitted driving speed:
155 mph (250 km/h)
Transmission capacity:
6 dBm
Frequency range:
433,92 MHz
Modulation:
OOK
Data transmission speed:
9600 bps
Nominal transmission interval:
14s
Operating time after vehicle has stopped: 15 min
10
A1_04_2003_usa 3.4.2003 10:54 Page 12
7 Terms of Warranty
LIMITED WARRANTY: Nokian Tyres warranty to you, ("You") being the Purchaser, is that the Pressure Watch ("Unit") shall be free of defects in
material and workmanship (the "Warranty"); provided, however, that Nokian Tyres Warranty hereunder shall not cover or apply to any
consumables (i.e., batteries in sensors and in receiver) or product, accessory, part or attachment that is not manufactured by Nokian Tyres,
except to the extent the manufacturer of any such item provides a warranty against defects in material and workmanship to Nokian Tyres that
can then be passed on to You. The Warranty Period shall commence on the date of purchase of each Unit (the "Sale") and shall run for a period
of one (1) year. The Warranty Period limits the duration of the Warranty including, without limitation, any implied warranties arising out of the
Sale of the Unit. Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply to You.
This warranty gives You specific legal rights, and You may also have other rights which vary from state to state.
EXCLUSIVE RECOURSE: TO THE EXTENT PERMITTED BY LAW AND EXCEPT AS MAY OTHERWISE BE EXPRESSLY PROVIDED UNDER THIS SALE, NOKIAN
TYRES SOLE AND ENTIRE LIABILITY FOR ANY AND ALL LOSSES AND DAMAGES RESULTING FROM ANY CAUSE WHATSOEVER, INCLUDING NOKIAN
TYRES NEGLIGENCE, ALLEGED DAMAGED OR DEFECTIVE GOODS, IRRESPECTIVE OF WHETHER SUCH DEFECTS ARE DISCOVERABLE OR LATENT, SHALL
BE LIMITED TO, AND YOUR SOLE AND EXCLUSIVE RECOURSE SHALL BE, THE REPAIR OR REPLACEMENT, AT NOKIAN TYRES DISCRETION, AND BY
NOKIAN TYRES AUTHORIZED DEALERS OR BY A DEALER SELECTED BY NOKIAN TYRES, OF ANY PART OR PARTS OF ANY UNIT (A) THAT MUST, WITHIN
THE WARRANTY PERIOD, BE RETURNED TO NOKIAN TYRES WITH TRANSPORTATION CHARGES PREPAID AND (B) THAT ON EXAMINATION BY NOKIAN
TYRES PROVES TO BE DEFECTIVE. If Nokian Tyres takes action to remedy the defect, such action shall be undertaken promptly and at Nokian
Tyres own cost and expense and without expense to You except for the prepaid transportation charges specified herein.
DISCLAIMER: THIS WARRANTY SERVES EXPRESSLY IN LIEU OF ALL OTHER EXPRESS WARRANTIES AND SPECIFICALLY IN LIEU OF ALL INDIRECT,
SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES, OR OTHER ECONOMIC LOSS RESULTING OR ARISING FROM A BREACH OF WARRANTY, INCLUDING,
WITHOUT LIMITATION, IN THE CASE OF A CLAIM OF A BREACH OF WARRANTY BASED ON NOKIAN TYRES NEGLIGENCE. FURTHER, NOKIAN TYRES
DOES NOT WARRANT RESULTS OF USE OR THAT USE WILL BE CONTINUOUS OR UNINTERRUPTED OR THAT IT IS UNAFFECTED BY ANY THIRD PARTY
PRODUCTS OR TOOLS USED IN CONJUNCTION WITH THE UNIT OR THAT THE UNIT WILL SUCCESSFULLY INTERFACE, FUNCTION OR OPERATE WITH,
OR RECEIVE OR TRANSMIT DATA FROM, TO OR THROUGH THIRD PARTY PROGRAMS, PRODUCTS OR TOOLS. MOREOVER, NOKIAN TYRES WARRANTY
DOES NOT GUARANTEE THAT ANY UNIT’S COMPONENTS ARE INTERCHANGEABLE ACROSS MODEL VERSIONS OR THAT A UNIT WILL SUCCESSFULLY
OPERATE WITH SUBSTITUTED COMPONENTS FROM PRIOR OR LATER VERSIONS OF THE SAME MODEL UNIT. AS A MATERIAL INDUCEMENT TO
NOKIAN TYRES TO SELL THE UNIT TO YOU, AND AS A MATERIAL PORTION OF THE CONSIDERATION TO BE RECEIVED BY NOKIAN TYRES FOR THIS
SALE, YOU HEREBY AGREE THAT NOKIAN TYRES SHALL NOT BE LIABLE TO YOU FOR INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES
OR OTHER ECONOMIC LOSS (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS, LOSS OF PROFITS, BUSINESS INTERRUPTION,
LOSS OF BUSINESS INFORMATION, LOSS OF BUSINESS OPPORTUNITIES, LOSS OF USE OR OF DATA, LOST SAVINGS OR OTHER SIMILAR PECUNIARY
LOSS) WHETHER ARISING FROM CONTRACT (INCLUDING FUNDAMENTAL BREACH OR BREACH OF WARRANTY), TORT (INCLUDING NEGLIGENCE OR
STRICT LIABILITY), EQUITY OR ANY OTHER THEORY OF LIABILITY, WHETHER UNDER THIS SALE OR OTHERWISE, EVEN IF NOKIAN TYRES HAD BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES OR LOSSES. Some states do not allow the exclusion or limitation of incidental or consequential
damages, so the above limitation or exclusion of such damages may not apply to You. FURTHERMORE, THIS WARRANTY IS CONDITIONAL ON
YOUR COMPLIANCE WITH ALL SAFETY RULES AND OPERATING INSTRUCTIONS FOR USING AND HANDLING THE UNIT IN ACCORDANCE WITH THE
USER MANUAL AND GOOD COMMERCIAL PRACTICES OF THE TRADE. NOKIAN TYRES SHALL NOT BE RESPONSIBLE FOR MALFUNCTIONS CAUSED
BY YOU OR BY MISUSE, INCORRECT OPERATION, PHYSICAL ABUSE, ACCIDENT OR NORMAL WEAR AND TEAR. TO THE MAXIMUM EXTENT PERMITTED
BY, AND NOT OTHERWISE VOID UNDER, LAW AND/OR IF THE UNIT IS NOT A CONSUMER PRODUCT WITHIN THE MEANING OF 15 U.S.C. §§ 23012312, NOKIAN TYRES DISCLAIMS ALL IMPLIED WARRANTIES INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR THAT
THE UNIT IS FIT FOR ANY PARTICULAR PURPOSE OR USE OR OF NON-INFRINGEMENT OR ACCURACY OF DATA AND ALL INDIRECT, SPECIAL, PUNITIVE,
OR CONSEQUENTIAL DAMAGES OR OTHER ECONOMIC LOSS.
ALLOCATION OF RISK: You expressly acknowledge and agree that the limitations and exclusions contained herein represent the parties’ agreement
to allocate risk between the parties in connection with Nokian Tyres obligations under this Sale. The price You paid for the Unit reflects this
allocation of risk and the exclusion of special, incidental, consequential, indirect or punitive, or other damage or economic loss in this Sale.
NOTWITHSTANDING THE CASE WHERE ANY EXCLUSIVE RECOURSE FAILS ITS ESSENTIAL PURPOSE OR IS OTHERWISE UNAVAILABLE.
8 Limitation of Liability
LIMITATION OF LIABILITY: NOTWITHSTANDING ANYTHING HEREIN TO THE CONTRARY, NOKIAN TYRES ENTIRE LIABILITY TO YOU FOR DAMAGES
CONCERNING PERFORMANCE OR NONPERFORMANCE BY NOKIAN TYRES OR IN ANY WAY RELATED TO THE SUBJECT MATTER OF THIS SALE AND
REGARDLESS OF WHETHER THE CLAIM FOR SUCH DAMAGES IS BASED IN CONTRACT OR IN TORT OR OTHERWISE, SHALL NOT IN ANY EVENT EXCEED
THE ACTUAL PRICE YOU PAID FOR THE UNIT.
11
A1_04_2003_usa 3.4.2003 10:54 Page 13
Annex A Check list
After starting journey.
Status indicator light (1A)
Tire indicator lights (1B)
Warning bleep
Off.
If receiver has factory settings
(failed configuration)
Status light flashes red.
Lights of sensors not yet in
contact with receiver flash.
Lights go out as contact is
established.
–
During driving (tire pressures Off.
and temperatures within
If receiver has factory settings
permitted parameters).
(failed configuration)
Status light flashes red.
When pressing the button
(1C)
–
Off
If a tire indicator light is
flashing, contact with that tire
has been cut off
Shines green for a moment if –
receiver has contact with all
tires and pressures and
temperatures are within
permitted parameters. Shines
red for a moment if receiver is
not in contact with all tires or if
receiver has factory settings.
–
If a tire’s pressure has fallen Flashes red slowly.
more than 10% or if its
temperature has risen above
176°F (80°C).
The tire indicator light of the tire Slow, repetitive bleeping.
(Can be switched off by pressing
that has caused the alarm
the button)
flashes.
If a tire’s pressure has fallen Flashes red rapidly.
more than 20% or if its
temperature has risen above
212°F (100°C).
The tire indicator light of the tire Fast, repetitive bleeping.
(Can be switched off by pressing
that has caused the alarm
the button).
flashes.
Configuration mode.
Flashes green rapidly.
Short bleep at beginning and
Off.
end of configuration mode.
If a tire indicator light is
flashing, contact with that tire
has been cut off.
If receiver battery is empty.
–
Off.
Shines red for a moment when
button (1C) is pressed.
12
Three bleeps at 5-minute
intervals.
A1_04_2003_usa 3.4.2003 10:54 Page 14
Annex B: Tire sensor and receiver installation instructions
for tire fitters
GENERAL INSTALLATION INFORMATION
IF INSTALLED INCORRECTLY ON THE WHEEL RIM THE TIRE SENSOR SECURING BAND MAY BECOME
WARNING LOOSE. THIS MAY UPSET THE BALANCING OF THE TIRE OR CAUSE THE SENSOR TO MALFUNCTION
OR BREAK. IN THE WORST CASE, THE SENSOR AND ITS SECURING BAND MAY COME OFF AND DAMAGE THE TIRE.
INSTALLATION OF TIRE SENSORS OR REPLACEMENT OF A MALFUNCTIONING SENSOR MAY ONLY
WARNING BE CARRIED OUT BY A TRAINED TIRE FITTER FROM A DEALER THAT SELLS THE PRESSURE WATCH,
FOLLOWING THESE INSTALLATION INSTRUCTIONS.
PLEASE READ ALL THE INSTRUCTIONS AND WARNINGS IN THIS MANUAL CAREFULLY BEFORE
WARNING STARTING INSTALLATION.
The tire sensor is attached to the well bed of the wheel rim using a steel band, and positioned close to the valve. When
the tire sensors are fitted, new valve caps and rings must also be fitted. These caps and rings indicate which sensor is
installed on which wheel rim. It is still possible to switch the position of the tires in order to balance out the wear of
the tires, in accordance with the car’s instruction manual, as the number on a valve ring does not require the tire to
always be in the same fixed position under the car.
It is recommended that the receiver be positioned on the driver’s sun visor so that it can establish clear contact with
the tire sensors. This position is also the easiest as regards checking. The 12V version can also be positioned elsewhere
(➔ 5.1 If contact cannot be established with one or more tire sensors).
PARTS AND TOOLS NECESSARY FOR INSTALLATION
• 4 tire sensors, each numbered differently (1, 2, 3 and 4)
• 4 steel securing bands
• 4 valve rings, each with a number corresponding to the numbers on the tire sensors (1, 2, 3 and 4)
• 4 RoadSnoop valve caps (which are interchangeable with the original valve caps)
• Marker pen to mark cut-off point
• Tool (e.g. sheet metal scissors) to cut off excess strips of the securing band
• Screwdriver or box wrench to tighten the screw on the securing band
• Receiver, battery (no battery in 12V version) and receiver flexible securing band
STAGES OF INSTALLATION
1) Thread the free end of the securing band between the lugs on the base of the tire sensor (Installation
figures 2-3). Straightening the end of the band makes it easier to thread through.
2) Fit the securing band holding the tire sensor around the well bed of the wheel rim in such a way that the sensor
is positioned near the valve (Installation figure 5).
ALWAYS POSITION THE TIRE SENSOR CLOSE TO THE VALVE, SO THAT WHEN REMOVING THE TIRE
WARNING FROM THE RIM, THE APPROXIMATE POSITION OF THE SENSOR IS KNOWN, THUS ENABLING YOU
TO ENSURE THAT THE SENSOR REMAINS UNDAMAGED.
IF THE TIRE SENSOR AND THE BAND TIGHTENING MECHANISM ARE POSITIONED OPPOSITE EACH
WARNING OTHER ON THE WHEEL RIM THEY COULD PREVENT THE TIRE BEAD FROM BEING ABLE TO LIE DEEP
ENOUGH IN THE WHEEL RIM WELL BED DURING INSTALLATION. IN THIS CASE THE TIRE FITTING MACHINE COULD DAMAGE
THE EDGE OF THE WHEEL RIM, OR THE TIRE BEAD COULD BREAK THE TIRE SENSOR OR THE TIGHTENING MECHANISM.
FOR THIS REASON IT IS RECOMMENDED THAT THE SENSOR AND TIGHTENING MECHANISM BE POSITIONED SIDE BY SIDE
(INSTALLATION FIGURE 6).
13
A1_04_2003_usa 3.4.2003 10:54 Page 15
3) Thread the free end of the securing band through the tightening mechanism. Tighten the band by hand and mark
the cut-off point using a marker pen. Loosen the band and cut it at the cut-off point. Then thread the cut end back
through the tightening mechanism (Installation figures 7-10).
THE SECURING BAND MUST BE ATTACHED EXACTLY PARALLEL WITH THE WHEEL RIM WELL BED.
WARNING IF A SECURING BAND IS NOT PARALLEL AND IS TIGHTENED UP CROOKEDLY IT COULD BECOME
LOOSE DURING MOTION. THE WELL BED OF SOME WHEEL RIMS TAPERS CONICALLY, I.E., THE BASE SLANTS. IF THIS IS THE
CASE, THE TIRE SENSOR AND SECURING BAND MUST BE INSTALLED AND TIGHTENED AT THE SMALLER TAPERED END SO
THAT IT CANNOT MOVE SIDEWAYS AND BECOME LOOSE. IF IT BECOMES LOOSE, THE TIRE UNIT CAN MOVE IN THE DIRECTION
OF THE PERIMETER OF THE RIM AND UPSET THE BALANCING OF THE WHEEL.
IF A CONICAL WELL BED TAPERS TOO SHARPLY, THE SECURING BAND MAY TIGHTEN UP UNEVENLY
WARNING AND BREAK THE LUGS ON THE TIRE UNIT. IT IS FORBIDDEN TO INSTALL THE SYSTEM ON THIS KIND
OF WHEEL RIM. ENSURE THAT THE SIDES OF THE TIRE SENSOR ARE NOT RESTING ON OR HOLDING THE SENSOR AGAINST
THE RIM OF THE WELL BED. DANGER OF BREAKAGE WHEN TIGHTENING.
IF THE EXCESS STRIP OF SECURING BAND IS NOT CUT SHORT ENOUGH, THE EXCESS OVERLAPPING
WARNING STRIP MAY RUB AGAINST THE INSIDE OF THE TIRE OR CUT INTO THE TIRE DURING INSTALLATION,
CAUSING A PUNCTURE HAZARD.
4) Continue tightening the band by screwing the tightening mechanism screw (the recommended tightening torque
is 3.3 FT lbs (4.5 Nm) (Installation figure 11).
5) Place the valve ring with the number matching the number on the tire sensor on the wheel rim valve (Installation
figure 12).
6) The tire sensor has now been installed. Take note of the position of the sensor and the tightening mechanism of
the securing band when fitting the tire, in order to ensure that the sensor does not get stuck and crushed between
the inside bead of the tire and the wheel rim (Installation figures 13-15). Ensure that the flexible antenna of the
tire sensor does not get trapped under the bead of the tire. Fitting the tire will be possible if, at the beginning, the
sensor is exactly opposite the arm of the tire installation machine and 1/3 of the tire bead is in the well bed. The place
where the sensor is located is the place where the bead of the tire must be lifted over the edge of the wheel rim last.
7) When the tires, each containing a sensor, have been replaced, fill them to car manufacturer’s recommended pressure
values. and replace the RoadSnoop valve caps, if desired (Installation figure 16).
8) Activate the receiver by installing the battery (Installation figure 17) Note: 12V version is connected up to the
vehicle’s electrical system.
9) Thread the flexible securing band through the links on the receiver. Attach the receiver to the upper edge of the
driver’s sun visor, on the center side of the car (Installation figure 19). Do not position the receiver next to a mirror
on the sun visor as metal parts in the mirror could impair the functioning of the receiver’s antenna. The receiver
(especially the 12V version) can also be positioned elsewhere.
10) Check that the tires are all filled to the manufacturer’s recommendations and only then press the configuration
button on the receiver (figure 1D) to put it into configuration mode (fi 3.2 Start up and 3.5 Configuration).
11) When the car begins moving, the tire sensors will be activated and will transmit the pressure data at that particular
moment to the receiver, which will record them as reference values..
14
A1_04_2003_usa 3.4.2003 10:54 Page 16
REMOVING THE TIRE SENSOR
When removing the tire from a wheel rim fitted with a RoadSnoop tire sensor, note where the sensor and the tightening
mechanism are located. (Installation figures 21-23). Always start lifting the first section of the tire bead over the
edge of the wheel rim where the sensor is positioned.
IF YOU REMOVE A TIRE FROM A WHEEL RIM FITTED WITH A ROADSNOOP TIRE SENSOR, DO NOT
WARNING POSITION THE TIRE SO THAT THE BEAD BREAKING MACHINE PRESSES THE TIRE ON EITHER SIDE
OF WHERE THE TIRE SENSOR OR BAND TIGHTENING MECHANISM IS LOCATED, AS THIS CAN CAUSE THE TIRE TO BREAK
THE SENSOR OR THE SECURING BAND WHEN IT COMES FREE FROM THE WHEEL RIM WELL BED. ADDITIONALLY, MAKE
SURE YOU ALWAYS START LIFTING THE FIRST SECTION OF TIRE BEAD OVER THE EDGE OF THE WHEEL RIM WHERE THE
SENSOR IS POSITIONED. THIS WILL ENSURE THAT THE SENSOR DOES NOT GET STUCK AND CRUSHED BETWEEN THE INSIDE
BEAD AREA OF THE TIRE AND THE WHEEL RIM.
15

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