File Name:
MEITRACK MVT380 User Guide
Creator:
Cavana Cheung
Project:
MVT380
Creation Date:
Update Date:
2010-08-26
2011-01-22
Sub Project:
User Guide
Page:
6 of 8
Revision:
V1.03
Confidential:
External Documentation
Copyright © 2010 Shenzhen Meiligao Electronics Co., Ltd. All rights reserved.
5)
Analog Input
Note:
Fuel level sensors supplied by us are resistance-type sensors with output resistance: 0-200Ω (ohm).
For the circuit shown on above figure, if VCC is 12V, R should be 200Ω (ohm) and if VCC is 24V then R should
be 600Ω (ohm) to make the input range to AD1 or AD2 is 0-6V.
Below formula is for calculating the fuel percentage left for this fuel level sensor:
The value must be converted into decimal, for example, 0x0267 is 615 in decimal.
4.4
Install GPS/GSM Antennas
GSM Antenna
GPS Antenna
Connect the GSM antenna to the SMA connector which is ‘GSM’ text labeled. The GSM antenna is non-directional,
so you can hide it in any place of vehicle.
Connect GPS antenna to the GPS connector which is ‘GPS’ labeled. The optimum location for the GPS antenna is
on the roof of the vehicle. The covert and GPS antenna are directional, make sure they are facing up and laying as
flat as possible. Secure them in place with glue or zip ties.
Percentage Left =
* 100%
1024* 2 – AD value
AD value
