MEC 310 GENSET CONTROLLER
PM075 REV 2 09/08/20 Page 54 THOMSON TECHNOLOGY
VDO sensors
There are three VDO inputs in the unit. The inputs have different functions due to the fact that the
hardware design is able to cover several VDO types.
VDO input 1: Fuel level sensor - max. 180 Ohm
VDO input 2: Oil pressure - max. 240 Ohm
VDO input 3: Cooling water temperature - max. 2500 Ohm
VDO input 1, fuel level
VDO sensor type
Type 1
Value Resistance
0% 78.8Ω
100% 1.6Ω
VDO sensor type
Type 2
Value Resistance
0% 3Ω
100% 180Ω
VDO sensor type
Value Type 3
% Resistance
0 Configurable
10
20
30
40
50
60
70
80
90
100
In the following description of the VDO inputs the order will be input 2, 3, 1. In this
way we are using the same order as in the TPS 300
software.
All VDO inputs have a general accuracy of 2%.
VDO sensors are noise sensitive; therefore we recommend using 2 wire sensors.
Type 3 is fully configurable with 8 points in the input range 0-180Ω and 0-100%.
VDO input 1, fuel level: type 1 and 2 curves are linear.
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