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Components
Components
Assignment between wheel and sensor must be absolutely maintained during tire change
procedure. If a tire and sensor is incorrectly matched, the OptiTire system will not send the
required warning when a wheel with low pressure is wrongly assigned to an axle on which this
pressure is actually permissble..
The assignment of an ID to a wheel is determined during initial start-up of the diagnostic software on
start-up, (see Chapter "9 Start-up", page 60).
6.1.1 The external sensor (WM2)
CAUTION
Risk due to incorrect handling
Any changes or manipulation to the sensor of any type, especially attempts made to change the
battery will destroy the device and may lead to injuries.
– Do not unscrew or remove the sensor from the bracket.
Information and technical data
EXTERNAL SENSOR (WM2)
WABCO part numbers
See Chapter ""External sensors WM2" variants", page 23.
Depending on rim crank, use of the normal external sensor or the so-called
L-shape or T-shape version is recommended
Pressure range 2 to 14 bar correspond to the nominal values of pressures from 3 to 10 bar
Temperature range -40 °C to +90 °C, 24h up to 120 °C
Transmission interval
Depends on the part number and availability of an acceleration sensor
With constant pressure: 9 minutes
Counterweight
required, see Chapter "Counterweight", page 25
With twin tires: two external sensors and no counterweight
Installation
Fastening by means of standard wheel nuts on the outside of the rim
Connected via a PA tube to the valve
Start-up
with magnet or WABCO TPMS Manager
(Chapter "9 Start-up", page 60)
Retrot Tires do not need to be removed from the rim.
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