Schrader SCH-BRK- 4PC User manual

Page 12 of 12
Rev 1.0 January 2007
Specifications subject to change without notice.
RoHS Compliant
Directive 2002/95/EC
20. Battery Fitment
Remove battery cover screw.
Remove battery cover & fit
2 x AA batteries as shown.
Re-fit battery cover and screw.
WARNING: DO NOT DISPOSE OF
IN FIRE, recharge, put in backwards,
mix with used or other battery types –
may explode of leak and cause
personal injury.
Disposal: Dispose in accordance
with all applicable federal, state, and
local regulations.
Page 1 of 12
Battery Operated
Tire Pressure Monitoring System
(TPMS)
Owner’s Instructions
Part No: SCH-BRK- 4PC

Page 2 of 12
1. FCC Notice
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
Caution: Any changes or modifications in construction of this device which are
not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
2. Tire Pressure Monitoring System (TPMS)
This system is a sensing device designed to measure and display tire
temperature and pressure, and to activate an alert to the driver when
pressure and temperature irregularities are detected. It is the responsibility of
the driver to react promptly and with discretion to alerts. Abnormal tire
inflation pressure should be corrected at the earliest opportunity.
Do not use any temporary re-sealing or re-inflation products containing
internal sealants or propellants in any tire assembly as these may adversely
affect the operation of the sensor/transmitter.
3. How It Works
Pressure and temperature information is transmitted by radio frequency to the
receiver and displayed on the LCD display. When an under-inflated,
over-inflated or over-heated tire is detected, the display will emit an audible
warning and activate a warning lamp to alert the driver. The icon for the tire
with the fault will be displayed along with the pressure and temperature. Each
sensor’s battery is also monitored, and an alert will activate if a sensor’s
battery is found to be low in charge. The receiver will turn on when a shock is
received and will automatically turn off after 5 minutes of no movement being
detected. The display will flash the last known data until next transmission is
received from that particular sensor.
Page 11 of 12
19. Parts List
Description Qty Part Number
Sensor (complete) 4 20154
Receiver (display) 1 20213
Wheel Sensor (Snap-in) 1 20214
Torx Screw (individual) 1 20562013
Valve (individual) 1 20522044
Hardware bag, inc. 1 20215
Cleaning Swab 1 20216
Top Dash Adhesive Strip 1 20217
Windscreen Adhesive Strip 1 20219
Windscreen Wedge Adaptor 1 20220
°C °F °C °F °C °F
-40 -40 20 68 80 176
-30 -22 30 86 90 194
-20 -4 40 104 100 212
-10 14
50 122 110 230
0 32 60 140 120 248
10 50
70 158 125 257
18. °C to °F Conversion Table

Page 10 of 12
17. Tire Pressure Reading & Translation
Nominal Pressure Alarm (PSI)
kPa PSI BAR Low High
180 26.1 1.8 19.58 39.15
200 29 2 21.75 43.50
210 30.45 2.1 22.84 45.68
220 31.9 2.2 23.93 47.85
230 33.35 2.3 25.01 50.03
240 34.8 2.4 26.10 52.20
250 36.25 2.5 27.19 54.38
260 37.7 2.6 28.28 56.55
270 39.15 2.7 29.36 58.73
280 40.6 2.8 30.45 60.90
290 42.05 2.9 31.54 63.08
300 43.5 3 32.63 65.25
320 46.4 3.2 34.80 69.60
390 56.55 3.9 42.41 84.83
460 66.7 4.6 50.03 100.05
580 84.1 5.8 63.08 126.15
Page 3 of 12
4. Programming
Press and hold the “M” button for 3 or more seconds (when receiver is on) to
enter programming mode. Use the “UP” or “DOWN” buttons to select, then
use the button to enter the selection. The programmable options are:
• USER SET Setting Pressure/Temp (front and rear tires)
• ID LEARN Learning Sensors
• EXCHANGE Rotating Tires
• SPARE TYRE ON/OFF
• UNIT kPa/PSI/bar, °C/°F
Press “OK” to accept the changes.
Press and hold “M” button to
quit & exit this mode.
5. User Setting
This pressure should be set to the vehicle placard pressures when tires are
cold. See table on page 10 for alarm trigger points for different pressures.
Front and rear pressures have a different setting. Enter programming mode
and select USER SET. Front tire setting is done first. Press the button,
and the first pressure digit will flash. Change the number with the up and
down buttons. Then next digit can be selected by pressing the button.
Continue until all pressure and temperature digits are changed. Once the
front setting has been adjusted, press “OK” button to store. Press and hold
the “DOWN” button to adjust the rear and spare tire setting. The temperature
setting is the level at which the alarm will trigger.
Front Tire Pressure Setting Rear & Spare Tire Pressure Setting

Page 4 of 12
6. ID Learn
When new sensors or receiver is installed, the receiver needs to learn each
new sensor. Enter programming mode and select ID LEARN. Press the
button to learn the first sensor (Left Front).
The front left tire icon will start to flash along with it’s ID digit. Deflate the tire
by at least 1 PSI (8.25kPa). When the receiver learns this sensor, it will beep
and the flashing LCD icons will stop flashing.
Press the button to proceed to the next tire (LF, RF, RR, LR, SPARE).
Repeat until all tires (including spare if fitted) are learned.
Press “OK” to store your selection.
Note: If a sensor is replaced or
requires re-learning, ALL
sensors will be erased from
memory, and must be
re-learned at the same time.
7. Exchange
After the tires are rotated and locations changed, the sensor ID data must be
changed to reflect actual tire rotation.
Enter programming mode and select EXCHANGE and press the button.
The front left tire icon will start to flash along with ID digit. Use the up and
down buttons to change the ID. Press the button to proceed to the next
tire. Repeat above steps for remaining tires. Continue until all tires (including
spare if fitted) are changed.
Press “OK” to store your selection.
Page 9 of 12
15. Glossary
kPa Pressure in kilo Pascals
PSI Pressure in pounds per square inch
BAR Pressure in BAR
°C Temperature in degrees Celsius
°F Temperature in degrees Fahrenheit
Cold Pressure Recommended tire pressure at an ambient temperature of approximately 72°F (22°C)
(See tire placard or vehicle’s Owners Manual)
Display / Receiver Internal electronic unit with built-in display and buzzer
Sensor / Transmitter Wheel mounted (internally) measuring and
transmitting pressure and temperature information
LCD Liquid Crystal Display (section of display showing car)
16. Conversion Formulas
Pressure Conversion
1 PSI=6.895 kPa
1 BAR=0.01 kPa
1 kPa=100 BAR
Temperature Conversion
°F=(9/5)°C+32
°C=(5/9)x(°F-32)

Page 8 of 12
14. Troubleshooting Guide
Symptoms Possible Cause(s) Solution
No display on LCD • No Power
• Faulty Unit
• Check battery
polarity
• Replace batteries
• Replace receiver
Not powering up No Shock Detected
Strike the receiver with
minimal force, OR press
and hold the “OK” button
for 3 seconds
Not learning ID
• Localized RF noise
• Not enough pressure
drop
• Move to another
location and try again
• Release more air from
tire
Tire data flashes on LCD • Sensor not activated
• Sensor faulty
• Increase speed over
25mph (40km/h)
• Replace faulty sensor
Incorrect units displayed Incorrect display setting Change to suit
Spare tire sensor not
displayed • Spare tire not enabled
• No sensor in spare
• Turn on spare in
display
• Fit sensor to spare
Page 5 of 12
8. Spare Tire
If a sensor is fitted to the spare tire, it can be monitored during normal TPMS
usage.
Enter programming mode and select spare tire mode. Press the button to
enable change to be made (spare tire icon flashes). The only selection is
either ON or OFF. Use the “UP” button to select ON, and use the “DOWN”
button to select OFF.
Press “OK” to store selection.
9. Pressure / Temperature Unit Setting
The displayed pressure and temperature units may be changed to suit your
requirements.
Enter programming mode and select UNIT.
Press the button to allow a selection to be made.
Use the up and down buttons to select the pressure unit (flashing). After
making your selection, press the button to continue onto temperature
selection. Use the up and down buttons to select temperature units. Press
the button to confirm your selection.
Press “OK” to store your selection.

Page 6 of 12
10. Front Panel Legend
Pressure
Warning
Over-temperature
Warning
Sensor Low
Battery Warning
Clockwise /
DOWN
Counter-
Clockwise / UP
Menu /
Backlight
Toggle
Toggle
Rotation /
Accept
▲Rotate displayed tire counter-clockwise
▼Rotate displayed tire clockwise
“T” Toggle automatic rotation on display
“M” Momentary=Backlight toggle, Press & hold=Programming Menu
“OK” Temporarily silence alarm condition (sound only)
11. Normal User Features
Save Settings
Battery Full
Battery Half
Battery Low
Page 7 of 12
Operating Temperature Range -40 to 212°F (-40 to 100°C)
Operating Humidity 85%
Weight 32 grams
Size (LxWxH) 2.25 x 0.91 x 0.51 in
(57 x 23 x 13mm)
Battery Life (Projected) 10 years normal use
Transmitter Frequency 433.920MHz (+/- 100kHz)
Transmitter Activation Pressure Change or
Speed over 25 mph (40km/h)
12. Technical Specifications - Sensor
Power Supply 3V DC (2 x AA Cells)
Current Consumption 200uA (standby), 3mA (nominal)
40mA (alert)
Operating Temperature Range -40 to 185°F (-40 to 85°C)
Weight 72 grams (without batteries)
Size (LxWxH) 1.26 x 3.66 x 1.69 in
(32 x 93 x 43mm)
Monitored Temperature range -40 to 257°F (-40 to 125°C)
Monitored Pressure range 0 to 101.5 PSI (0 to 700kPa)
13. Technical Specifications - Receiver

Page 6 of 12
10. Front Panel Legend
Pressure
Warning
Over-temperature
Warning
Sensor Low
Battery Warning
Clockwise /
DOWN
Counter-
Clockwise / UP
Menu /
Backlight
Toggle
Toggle
Rotation /
Accept
▲Rotate displayed tire counter-clockwise
▼Rotate displayed tire clockwise
“T” Toggle automatic rotation on display
“M” Momentary=Backlight toggle, Press & hold=Programming Menu
“OK” Temporarily silence alarm condition (sound only)
11. Normal User Features
Save Settings
Battery Full
Battery Half
Battery Low
Page 7 of 12
Operating Temperature Range -40 to 212°F (-40 to 100°C)
Operating Humidity 85%
Weight 32 grams
Size (LxWxH) 2.25 x 0.91 x 0.51 in
(57 x 23 x 13mm)
Battery Life (Projected) 10 years normal use
Transmitter Frequency 433.920MHz (+/- 100kHz)
Transmitter Activation Pressure Change or
Speed over 25 mph (40km/h)
12. Technical Specifications - Sensor
Power Supply 3V DC (2 x AA Cells)
Current Consumption 200uA (standby), 3mA (nominal)
40mA (alert)
Operating Temperature Range -40 to 185°F (-40 to 85°C)
Weight 72 grams (without batteries)
Size (LxWxH) 1.26 x 3.66 x 1.69 in
(32 x 93 x 43mm)
Monitored Temperature range -40 to 257°F (-40 to 125°C)
Monitored Pressure range 0 to 101.5 PSI (0 to 700kPa)
13. Technical Specifications - Receiver

Page 8 of 12
14. Troubleshooting Guide
Symptoms Possible Cause(s) Solution
No display on LCD • No Power
• Faulty Unit
• Check battery
polarity
• Replace batteries
• Replace receiver
Not powering up No Shock Detected
Strike the receiver with
minimal force, OR press
and hold the “OK” button
for 3 seconds
Not learning ID
• Localized RF noise
• Not enough pressure
drop
• Move to another
location and try again
• Release more air from
tire
Tire data flashes on LCD • Sensor not activated
• Sensor faulty
• Increase speed over
25mph (40km/h)
• Replace faulty sensor
Incorrect units displayed Incorrect display setting Change to suit
Spare tire sensor not
displayed • Spare tire not enabled
• No sensor in spare
• Turn on spare in
display
• Fit sensor to spare
Page 5 of 12
8. Spare Tire
If a sensor is fitted to the spare tire, it can be monitored during normal TPMS
usage.
Enter programming mode and select spare tire mode. Press the button to
enable change to be made (spare tire icon flashes). The only selection is
either ON or OFF. Use the “UP” button to select ON, and use the “DOWN”
button to select OFF.
Press “OK” to store selection.
9. Pressure / Temperature Unit Setting
The displayed pressure and temperature units may be changed to suit your
requirements.
Enter programming mode and select UNIT.
Press the button to allow a selection to be made.
Use the up and down buttons to select the pressure unit (flashing). After
making your selection, press the button to continue onto temperature
selection. Use the up and down buttons to select temperature units. Press
the button to confirm your selection.
Press “OK” to store your selection.

Page 4 of 12
6. ID Learn
When new sensors or receiver is installed, the receiver needs to learn each
new sensor. Enter programming mode and select ID LEARN. Press the
button to learn the first sensor (Left Front).
The front left tire icon will start to flash along with it’s ID digit. Deflate the tire
by at least 1 PSI (8.25kPa). When the receiver learns this sensor, it will beep
and the flashing LCD icons will stop flashing.
Press the button to proceed to the next tire (LF, RF, RR, LR, SPARE).
Repeat until all tires (including spare if fitted) are learned.
Press “OK” to store your selection.
Note: If a sensor is replaced or
requires re-learning, ALL
sensors will be erased from
memory, and must be
re-learned at the same time.
7. Exchange
After the tires are rotated and locations changed, the sensor ID data must be
changed to reflect actual tire rotation.
Enter programming mode and select EXCHANGE and press the button.
The front left tire icon will start to flash along with ID digit. Use the up and
down buttons to change the ID. Press the button to proceed to the next
tire. Repeat above steps for remaining tires. Continue until all tires (including
spare if fitted) are changed.
Press “OK” to store your selection.
Page 9 of 12
15. Glossary
kPa Pressure in kilo Pascals
PSI Pressure in pounds per square inch
BAR Pressure in BAR
°C Temperature in degrees Celsius
°F Temperature in degrees Fahrenheit
Cold Pressure Recommended tire pressure at an ambient temperature of approximately 72°F (22°C)
(See tire placard or vehicle’s Owners Manual)
Display / Receiver Internal electronic unit with built-in display and buzzer
Sensor / Transmitter Wheel mounted (internally) measuring and
transmitting pressure and temperature information
LCD Liquid Crystal Display (section of display showing car)
16. Conversion Formulas
Pressure Conversion
1 PSI=6.895 kPa
1 BAR=0.01 kPa
1 kPa=100 BAR
Temperature Conversion
°F=(9/5)°C+32
°C=(5/9)x(°F-32)

Page 10 of 12
17. Tire Pressure Reading & Translation
Nominal Pressure Alarm (PSI)
kPa PSI BAR Low High
180 26.1 1.8 19.58 39.15
200 29 2 21.75 43.50
210 30.45 2.1 22.84 45.68
220 31.9 2.2 23.93 47.85
230 33.35 2.3 25.01 50.03
240 34.8 2.4 26.10 52.20
250 36.25 2.5 27.19 54.38
260 37.7 2.6 28.28 56.55
270 39.15 2.7 29.36 58.73
280 40.6 2.8 30.45 60.90
290 42.05 2.9 31.54 63.08
300 43.5 3 32.63 65.25
320 46.4 3.2 34.80 69.60
390 56.55 3.9 42.41 84.83
460 66.7 4.6 50.03 100.05
580 84.1 5.8 63.08 126.15
Page 3 of 12
4. Programming
Press and hold the “M” button for 3 or more seconds (when receiver is on) to
enter programming mode. Use the “UP” or “DOWN” buttons to select, then
use the button to enter the selection. The programmable options are:
• USER SET Setting Pressure/Temp (front and rear tires)
• ID LEARN Learning Sensors
• EXCHANGE Rotating Tires
• SPARE TYRE ON/OFF
• UNIT kPa/PSI/bar, °C/°F
Press “OK” to accept the changes.
Press and hold “M” button to
quit & exit this mode.
5. User Setting
This pressure should be set to the vehicle placard pressures when tires are
cold. See table on page 10 for alarm trigger points for different pressures.
Front and rear pressures have a different setting. Enter programming mode
and select USER SET. Front tire setting is done first. Press the button,
and the first pressure digit will flash. Change the number with the up and
down buttons. Then next digit can be selected by pressing the button.
Continue until all pressure and temperature digits are changed. Once the
front setting has been adjusted, press “OK” button to store. Press and hold
the “DOWN” button to adjust the rear and spare tire setting. The temperature
setting is the level at which the alarm will trigger.
Front Tire Pressure Setting Rear & Spare Tire Pressure Setting

Page 2 of 12
1. FCC Notice
This device complies with Part 15 of the FCC Rules. Operation is subject to
the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
This equipment has been tested and found to comply with the limits for a
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation.
If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the
following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
Caution: Any changes or modifications in construction of this device which are
not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
2. Tire Pressure Monitoring System (TPMS)
This system is a sensing device designed to measure and display tire
temperature and pressure, and to activate an alert to the driver when
pressure and temperature irregularities are detected. It is the responsibility of
the driver to react promptly and with discretion to alerts. Abnormal tire
inflation pressure should be corrected at the earliest opportunity.
Do not use any temporary re-sealing or re-inflation products containing
internal sealants or propellants in any tire assembly as these may adversely
affect the operation of the sensor/transmitter.
3. How It Works
Pressure and temperature information is transmitted by radio frequency to the
receiver and displayed on the LCD display. When an under-inflated,
over-inflated or over-heated tire is detected, the display will emit an audible
warning and activate a warning lamp to alert the driver. The icon for the tire
with the fault will be displayed along with the pressure and temperature. Each
sensor’s battery is also monitored, and an alert will activate if a sensor’s
battery is found to be low in charge. The receiver will turn on when a shock is
received and will automatically turn off after 5 minutes of no movement being
detected. The display will flash the last known data until next transmission is
received from that particular sensor.
Page 11 of 12
19. Parts List
Description Qty Part Number
Sensor (complete) 4 20154
Receiver (display) 1 20213
Wheel Sensor (Snap-in) 1 20214
Torx Screw (individual) 1 20562013
Valve (individual) 1 20522044
Hardware bag, inc. 1 20215
Cleaning Swab 1 20216
Top Dash Adhesive Strip 1 20217
Windscreen Adhesive Strip 1 20219
Windscreen Wedge Adaptor 1 20220
°C °F °C °F °C °F
-40 -40 20 68 80 176
-30 -22 30 86 90 194
-20 -4 40 104 100 212
-10 14
50 122 110 230
0 32 60 140 120 248
10 50
70 158 125 257
18. °C to °F Conversion Table

Page 12 of 12
Rev 1.0 January 2007
Specifications subject to change without notice.
RoHS Compliant
Directive 2002/95/EC
20. Battery Fitment
Remove battery cover screw.
Remove battery cover & fit
2 x AA batteries as shown.
Re-fit battery cover and screw.
WARNING: DO NOT DISPOSE OF
IN FIRE, recharge, put in backwards,
mix with used or other battery types –
may explode of leak and cause
personal injury.
Disposal: Dispose in accordance
with all applicable federal, state, and
local regulations.
Page 1 of 12
Battery Operated
Tire Pressure Monitoring System
(TPMS)
Owner’s Instructions
Part No: SCH-BRK- 4PC