VDO SENSOR KITAS 2171-20 - DATASHEE User Manual

The intelligent KITAS sensors form a new generation
of speed sensors. With the innovative crypto-graphi­cal IC the gear-box signals can be transmitted
tamper-proof without an armoured cable for the first
time.
A statically operated hall-effect IC is utilised as the
sensor. This element converts the revolution of an
impulse- or gearwheel into electrical signals.
In parallel to the encrypted revolution data the
conventional real-time signal is also available.
Through a comparison of these two sources the
tachograph can detect data manipulations safely.
Therefore the KITAS sensor and the tachograph form
an authorised system.
A link between the serial numbers of the KITAS
sensor and the tachograph enchances the security
even further.
Harness flexibility will be increased by using the
intelligent KITAS sensor.

Features

• Conform with Regulation VO (EG) No. 1360/2002

• Certificate through BSI according to ITSEC,
level E 3 High, as per supplement 1B

• Full fills the Generic Security Target’s as per
supplement 1B

• Integrated in the gearbox

• Data security by cryptological procedure
(TRIPLES DES)

• Non-contact measuring system (Hall IC)

• Sealing possibility

• Replace the steel armoured cable

• Interface according to ISO 16844-3

• Standard plug according to ISO 15170

• Comparison of the real-time signal with the

encoded signal

• Power-On reset function

• Storage of additional facts (identification,
installation)

Use

• Only for use in the new tachograph generation
MTCO 1324 (Modular Tachograph) and
DTCO 1381 (Digital Tachograph)

www.vdo.com

Sensor

KITAS 2171-20

VDO – A Trademark of the Continental Corporation09/2008 | A2C59512786 | We reserve the right to make changes in availability as well as technical changes without prior notice.

Continental Trading GmbH | Heinrich-Hertz-Strasse 45 | 78052 Villingen-Schwenningen | Germany
E-mail: [e-mail] | www.vdo.com

Sensor

KITAS 2171-20

Technical Information

Operating voltage 6,5 ... 9 V

Power consumption max. 15 mA

Operating temperature A - 30 °C ... + 135 °C

B - 30 °C ... + 145 °C

Storage temperature A - 40 °C ... + 150 °C Connection

unearthed

Signal shape (Pin 3) rectangular

Frequency range 1 Hz - 2000 Hz

Output signal (Pin 3) Real-time signal

UL max = 800 mV

(@I = 250 μA)

UH min = UE - 1,5 V

(@I = - 150 μA)

Output short-circuit 28 V, 1 min

Output signal Pin 4 Bidirectional interface

Protection against

voltage interference DIN 40 839

Interference protection DIN 40 839

Protection EH 60 529 IP 67 / IP 69K

Dimensions approx. 19,8 / 25 / 35 / 63,2 /

(L in mm) 90 / 136,8

Weight approx. 100 to 180 g

Resistance to vibration 30 g

Shock resistance 1000 g

Tightness 0,5 bar oil, 120 °C, 100 h

Material of pulse wheel ST 4 LG RP

Thickness of pulse wheel 2 mm

Segment gap (typ.) 1,5 .... 2 x Segment width

Segment length (typ.) 16 mm

Air gab Sensor/pulse wheel 1,4 mm

(typ.)

Not to be used in cases of

extraneous magnetic elds > 2 mT

Connection of sensor standard plug according to

to sensor lead ISO 15170

Connection of sensor to

vehicle gearbox via thread M 18 x 1,5

Torque 50 Nm ±10 Nm

(wrench size) (WS 27)