Tachograph System Requirements - Siemens VDO DTCO 1381 Technical Description

6.1 DTCO 1381 in vehicles used for the carriage of hazardous goods Installation of the ADR variant
ADR identification

6.1.2 Tachograph system requirements

EC type-approval certificate
DTCO 1381
EC type-approval certificate
KITAS 2171
6 - 4
Components and wires of the electrical system whose ambient tem-
perature exceeds, induced to non-electrical equipment, the temper-
ature class T6 must:
• achieve the temperature class T4 or higher.
Alternatively, the general regulations of the standard EN 50014 and
the additional regulations of the standards EN 50015 to 50021 or
50028 can be applied.
Vehicles used for the carriage of hazardous goods require special
approval and must be marked accordingly.
The tachograph system consists of the EC recording equipment
DTCO 1381 and the motion sensor KITAS 2171.
An attached display instrument is not part of the tachograph system
and must switched to a dead (electrical) condition by opening the
battery disconnect switch (ADR operation).
Tachographs systems fitted to vehicles used for the carriage of dan-
gerous goods must be constructed accordingly:
• The EC recording equipment is fitted with the necessary special
equipment and is marked accordingly.
• The tachograph system has intrinsically safe circuitry between
the EC recording equipment and the sensor.
An EC type-approval certificate in accordance with EN 50021 pro-
tection type "n" was issued for the DTCO 1381; for the sensor
interface an EC type-approval certificate was issued in accordance
with EN 50020, intrinsic safety "ib" as an associated intrinsically-safe
device.
For the KITAS 2171, an EC type-approval certificate was issued
according to EN 50020, intrinsic safety "ib", as an intrinsically-safe
device.
© Siemens VDO Automotive AG Edition 07/2007