VDO DTCO 4.1, Instruction Manual

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3
Device description Operating modes (overview)
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Instruction manual DTCO 4.1 - Edition 02/2023 - BA00.1381.41 100 102
► Special safety instructions
The following additional safety informa-
tion must be observed for the ADR vari-
ant of the DTCO 4.1:
RISK OF EXPLOSION!
Observe instructions
• Please observe the instructions for
the transport and handling of haz-
ardous goods in explosive environ-
ments.
RISK OF EXPLOSION!
Please observe the following when
loading and unloading hazardous
goods:
• Both card drawers must be closed.
• The printer drawer must be closed.
• The cover flap of the front interface
must be closed.
• Do not press any buttons on the
tachograph.
• No workshop, control or company
card must be inserted.
► Particularities in relation to the
operation
To protect from explosion, the ADR vari-
ant of the DTCO 4.1 is reduced to in-
ternal functions while the ignition is
turned off in certain hazard areas (in
contrast to the standard variant).
You can use all functions of the
DTCO 4.1 outside of the hazard area
while the ignition is switched on.
■ Operating modes (overview)
12:40  75km/h
 123456.7km 
Fig. 3: Display relating to operating mode
(1) Display of the operating mode
The DTCO 4.1 has 4 operating modes
which each depend on the tachograph
card inserted:
• Operation

(journey/driver)
Standard display with or without driver
card inserted
è Shift start – Inserting
driver card [
}
49]
• Company

(contractor)
Display after inserting the company
card
è
Registration – inserting com-
pany card [ } 68]
• Control

(Not part in this manual)
• Calibration

(Not part in this
manual)