GC-1F Installation Instructions and Reference Handbook
DEIF A/S Page 56 of 123
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 2: Oil pressure - max. 240 Ohm
VDO input 3: Cooling water temperature - max. 2500 Ohm
VDO input 1: Fuel level sensor - max. 180 Ohm
VDO input 1, fuel level
VDO sensor type
Type 1
Value Resistance
0 % 78.8
100 % 1.6
VDO sensor type
Type 2
Value Resistance
0 % 3
100 % 180
VDO sensor type
Value Type 3
% Resistance
0 Configurable
10
20
30
40
50
60
70
80
90
100
All VDO inputs have a general accuracy of 2 %.
VDO sensors are noise sensitive, therefore we recommend to use 2-wire sensors.
VDO input 1, fuel level: type 1 and 2 curves are linear.
Type 3 is fully configurable with eight points in the input range 0 to 180 and 0
to 100 %.
HW 1.05 and SW 2x.x have max. 2500 Ohm of all VDO sensors.
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