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