VDO SENDER UNIT 2159-20 User manual

The Sender Unit, integrated in the gearbox, transfers

the number of revolutions of a gearwheel into electri-

cal pulses.

The revolutions are captured by means of a Hall IC.

The pulses supplied by the Hall IC are used by ta-

chographs and on-board computers for capturing

the distance covered and the road speed.

When using the integrated sender unit the speedo-

meter shaft connection is no longer necessary.

2159-20 is designed for heavy-duty purposes!

Features

• Touch-sensitive measuring procedure (Hall IC)

• Integrated in the gearbox

• Static measuring (zero-speed recognition)

• Double pulse (inverted)

• Can be sealed

• Can be directly connected to the vehicle

electric system

• Recognition of sense of rotation (2 sensors)

• 7 different lenghts to comply with the

different types of gearboxes

Applications

• For tachographs/EC tachographs KTCO 1318,

FTCO 1319 and MTCO 1390 NEC

• Generally for devices requiring an electrical pulse

(double pulse, inverted) for road speed and/or

distance measuring.

www.vdo.com

Sender Unit

2159-20 (stat.)

VDO – A Trademark of the Continental Corporation09/2008 | A2C59512782 | 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: [email protected] | www.vdo.com

Sender Unit

2159-20

Technical Information

Output Double pulse (inverted)

Operating voltage 6,5 ... 30 V

Power consumption (~U) max. 16 mA

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

B -30°C ... +145°C

Storage temperature A -40°C ... +140°C

B -40°C ... +150°C

Connection unearthed

Output resistor (pull up) open collector

Protective resistance 1,5 kΩ

Signal shape rectangular

Frequency (max.) ≤ 4 kHz

Output signal A1 UL≤ 1,9 V (1mA)

Output signal A2 inversion of A1

Interference protection DIN 40839 T1

Radiated susceptibility DIN 40839 T4 (100V/m)

Outputs, short-circuit proof 30 V, 1 min.

Protection IEC 529, IP 67

Resistance to vibrations 30 g

Shock resistance 100 g, 11 ms, 50 cycles

Tightness 0,5 bar oil, 120°C, 100h

Scanning speed Vmin circumference ≥ 0 m/s

of pulse wheel (typ.)

Pulse wheel material (typ.) St 4 LG RP

Thickness of pulse material 2 mm

Segment/gap (typ.) 1 : 1,5 to 1 : 2

Lenght of segment (typ.) 16 mm

Air gap, Sender Unit/pulse wheel (typ.) 1,4 mm

Not to be used in cases of

extraneous magnetic elds > 2 mT

Connection of sender unit via bayonet joint

to sender unit cable

Connection of sender unit via thread M 18 x 1,5

to vehicle gearbox

Torquet (wrench size) max. 50 Nm (SW 27)

Weight approx. 80 to 160 g

Dimensions approx. 16 x 19,8/25/35

(Ø x L in mm) 63,2/90

Temperature ATemperature B

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