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R2 CAN Installation manual
• The supply voltage must not fall below 16°V, e.g. with an excessive number or
consumers or with the motor switched off.
• The optimal solution is a switch-off delayed by approx. 30 minutes so that
counting is possible even with the engine (and/or the on-board network)
switched off.
• Is a time-delayed power supply via the on-board network possible or
• does a timing relay need to be connected to permanent plus (see also
section 6, p. 34).
3.2.1 Important information on sensor placement
• Install the sensors in the centre of and as closely as possible to the door.
• The maximum distance between the sensor and the vehicle inside wall must not exceed
20 cm. Mounting sensors at a larger distance from the door must be agreed with iris-
GmbH before the installation.
• Install the sensors on a horizontal surface. The maximum permissible deviation from the
horizontal plane is ±5°.
If the upper door trim does not allow direct mounting, you can achieve the required
horizontal sensor position using suitable sensor mounts. Please agree any use of sensor
mounts with iris-GmbH before the installation.
• With such a sensor mount, the sensor must be placed no more than 5 cm above the
lower end of the vehicle wall.
• Objects standing vertically in close proximity to the sensor up to a distance of 3 cm from
the sensor surface can impair the counting result and must be avoided.
Fig. 4: Maximum distance to the end of vehicle inside wall
• The installation orientation must be observed in all cases; it complies with the markings
on the rear of the sensor, see Fig. 5:
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