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2.3 Parameters of technical features
Value
Item
Min.
Typical
Max.
Unit
Resistance under a room temperature of 20° C
774 860 946 W Inductance
310 370 430 mH
Output voltage at a crankshaft revolution of 416rpm
>1650
mV
2.4 Installation attentions: to the auto or testing device right away. l Inductive tachogenerator is assembled by press in method but not hammer tapping. recommended. l The tightening torque is 8±2Nm. Dimension d (see the figure below): 4.7mm.
2.5 Failure effects and judgment method: l Failure effects: start failure etc.
l General cause of the failure: man induced failure. press-in method instead of hammering method. l Simple measurement method: 1. With the joint removed, turn the digital multimeter to Ohm shift, and then connect the two meter pens respectively to 2# and 3# pins; At 20 , the rated resistance should be 860Ω±10%. ℃
2. With the joint connected, turn the digital multimeter to AC Voltage shift, and then connect the two meter pens respectively to 2# and 3# pins of the sensor; start the engine and voltage output should be present at this point. (Inspection with vehicle oscilloscope is recommended).
Oscillogram in Test In st al la ti o n o f t h e ta cho en er at or
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