Installation of Fuel Level Sensors - Advice/Tips for first time instal

Better ask this directly from Technoton support team

RobertoS, if you install it to diesel fuel tank - from my experience I would say that it's enough to drain the fuel out - no need to clean it completely and remove all vapours. Diesel is not extremely flammable
But if the fuel tank has a thick layer of mud on the bottom - I would recommend to clean the tank out (and bill the customer ).

What is more important - to make calibration table properly. How you gonna make it? Do you have a fuel pump and a reservoir where you gonna pump all the fuel from vehicle's tank?

Installation is quite simple, just drain the fuel, positioning of the hole should be right in the middle of the tank. If you need to cut the sensor, cut it with 2 cm more so that it would have space for the spring head. Also depending on the sensor type, if it is a dut-e af you will need to calibrate it from the software after cutting. Finally just pour from 10 to 10 liters or 20 to 20 so you can do the calibration in wialon.

RobertoS
We use such device for looking inside of tank

https://ru.aliexpress.com/store/product … yId=301102

As for me, I never saw technical drawing of fuel tanks used by manufacturers in free access.
Actually, we didn't need that - there is a trick you can use to check if there is any wall under drilling place: knock on the place of drilling and around it, if you hear thud - most probably there is a wall under, if sonorous - nothing under. Of course, you can use technological way as GoGPS proposed

Couple more words on calibration table: I would recommend as much calibration points as possible (as time allows you), not less than 10. Also, before doing calibration table, change "Signal filtration time" parameter to 0. Otherwise, you will loose 90 more seconds after each portion filling (as we did when were doing for the first time ). Do not forget to put it back in the end of installation procedure.
Also, we always store calibration table in sensor's memory - I do not recommend you to store it on the server side (yes, it has one advantage, but in general on-board processing of data is more preferable to ensure accuracy of measurement).

One more advice from my experience: after calibration is done - save the table to file and save the whole sensor's profile to file  too. It would be very useful in case the sensor will break down and you will need to replace it with a new one.

Thank you very much for sharing all this info with me, really great tips there.

Thanks

small_gprs ,

1) I do not know what sensor RobertS have, but if you use DUT-E CAN without prior additional integration of data protocol, you receive level in % only. % dependes on correspondence table inside memory of sensor.
2) adjustable thermocorrection function works only inside sensor, not on the server side
3) if using 2 and more sensor on one vehicle, signal summarization (applicable to DUT-E 232 and DUT-E AF) is only possible in liters (output signal should be in liters).

If you want to adjust data from sensor , you can make additional correctional table on the server side (if changing regular to winter diesel or regular to bio)