Technoton DUT-E 232, Operation Manual, Page: 74 / 116

Configuration of sensor using service adapter / Vertical menu description / Settings - Thermal compensation
DUT-E fuel level sensors. Operation manual. Version 8.1
© Technoton, 2020 74
3.10.5 Settings – Thermal compensation
Temperature extension/shrinking of fuel cause by change of its temperature, leads to change
of fuel volume in fuel tank. As result
– sensors transmit to tracking/monitoring unit information
on rising/lowering fuel level.
DUT-E makes recalculation of fuel level – automatic temperature correction, which recoups
temperature extension/shrinking of fuel.
By default, temperature correction function is turned off. To turn it on, tick the box
Thermocorrection . In the field, which will appear next to the box, pleas enter thermal
compensation coefficient (see figure 50).
Thermal compensation coefficient
K
. ther.corr
is determined by formula (1):
min min max
min max
ther.corr. V ) T T (
100 ) V V (
) 1 (
K
 −
 −
 − = (1)
where T
min
and T
max
— respectively the minimum and the maximum measured values
of fuel temperature in the tank during 24 hours;
V
min
and V
max
— measured values of fuel volume in the tank with minimum and maximum
fuel temperature respectively.
IMPORTANT:
1) It is recommended to determine Values V
min
, V
max
, T
min
, T
max
by data on Server
.
2) When measuring values V
min
, V
max
, T
min
, T
max
during 24 hours follow the
requirements:
- Vehicle is not moving with engine off.
- Ambient temperature should correspond to normal operating conditions of the
Vehicle .
- Tank should be filled with fuel not less than 10 % of the total fuel volume.
- There should be the same fuel volume in the tank (refueling or draining is
not allowed)
a) disabling the feature b) inserting coefficient
Figure 50 — Thermal compensation setting