Automotive Sensor Signal Simulator MNB-3 User's Manual

MNB-3 Auto Sensor Signal Simulator
Automotive Sensor Signal Simulator

（MNB-3）
User's manual
The MNB-3 host has an expansion socket, which is convenient for adding new
functions.
The host uses 3 high-power wire-wound potentiometers to increase the output
signal current, and all signal output jacks are added with an overcurrent
protection circuit, which further improves the reliability of the instrument.
Brightwin Technology
Simulate various sensor wiring methods:
1. Accelerator pedal sensor signal simulation
The accelerator pedal sensor generally has six wires: two ground wires, two 5V
power wires, and two signal wires (voltage ratio 2:1).
If the MNB-3 is plugged in with an external power supply, only two ground
wires and two signal wires need to be connected. If the MNB-3 is not plugged
in with an external power supply, all six wires need to be connected.
First, turn the V1 and V2 knobs to adjust the voltage ratio of V1 and V2 of
MNB-3 to 2:1. Then, just turn the V1 knob, the voltages of V1 and V2 will
change together, and the ratio will always remain 2:1.
2. Sensors that simulate voltage changes.
Common voltage sensors in automobiles include: air flow sensor, intake
pressure sensor, oil pressure sensor, boost pressure sensor, common rail
pressure sensor, throttle position sensor, air conditioner pressure sensor (voltage
type), etc.
The signal voltage of the voltage sensor is mostly 0-5V, which can be directly
simulated by V1. The sensor has 3 wires: 5V power supply, ground wire GND,
and signal wire.
Test method:
Connect the external power supply to the MNB-3, connect the V1 socket to the
sensor signal line, and connect the common ground line GND socket to the
sensor ground line. The sensor 5V power supply does not need to be connected.
If the MNB-3 is not plugged into an external power supply, the sensor's 5V
power supply needs to be connected.
Rotate the V1 knob, the output voltage signal 0-5V changes, (if you need to
simulate multiple voltage sensors at the same time, please purchase expansion
board A separately).
3. Sensors that simulate changes in resistance
Common resistance sensors in automobiles include: coolant temperature sensor,
intake air temperature sensor, oil temperature sensor, exhaust temperature
sensor, fuel temperature sensor, evaporator temperature sensor, ambient
temperature sensor, etc.
There is a thermistor inside the resistance sensor, and the resistance value
changes with temperature.
The resistance sensor has 2 wires: ground wire GND, and signal wire.
Test method: The instrument host does not need to plug in an external power
supply, the sensor ground wire is connected to the host's public ground wire
GND socket, the sensor signal line is connected to the host resistance analog
output socket, and the potentiometer knob is rotated to change the resistance
value between 0-10KΩ.
If you want to simulate multiple resistance sensors, you can use the V1 voltage
signal to simulate, output a 0-5V voltage signal, and you can directly simulate a
temperature signal.
4. Oxygen sensor signal simulation
MNB-3 can simulate 4-wire oxygen sensor (5-wire and 6-wire cannot be
simulated temporarily)
The 4 wires of the 4-wire oxygen sensor are: the positive power supply of the
heating wire of the sensor, the control terminal of the heating wire, the signal
output wire, and the ground wire.
Test method:
The oxygen sensor output socket of MNB-3 is connected to the sensor signal
line, and the ground line GND is connected to the sensor ground line. MNB-3
automatically outputs a 0.1-0.9V continuously changing voltage signal.
5. Voltage measurement.
6. The expansion board (A) is an optional accessory that needs to be
purchased separately and cannot be used alone.
7. Use expansion board A to simulate dual throttle sensor signals, one signal
changes from 0-5V, the other signal changes from 5-0V, and the sum of the two
signals is equal to 5V.
The ground wire of the throttle sensor is connected to the ground wire GND of
the expansion board A, and the two signal wires of the sensor are respectively
connected to the signal 1 and signal 2 of the expansion board A,
Plug the expansion board A into the MNB-3 host, plug the MNB-3 into an
external power supply, and turn the adjustment knob to change the signal
voltage.
8. Use expansion board A to simulate voltage type or resistance type sensors,
and use V3 or V4 to simulate.
Let's take V3 as an example: the signal wire of a voltage-type or resistance-type
sensor is connected to the signal terminal of V3, and the ground wire of the
sensor is connected to the ground wire GND of the expansion board A.
Plug the expansion board A into the MNB-3 host, plug the MNB-3 into an
external power supply, turn the V3 knob, and the V3 signal terminal voltage
changes between 0-5V.
Attention: Due to the size limitation, the expansion board A only has LED
indicators, which indicates the signal voltage level through the LED lighting,
and the voltmeter on the host displays the voltage value of the V1\V2 socket,
and does not display the signal voltage of the expansion board.
Order it via AliExpress store (click):
Product link: https://www.aliexpress.com/item/4000188934898.html
Aliexpess store link: https://brightwintech.aliexpress.com/store/4557043
Technical support: brightwinelectronics@hotmail.com

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MNB-3 Auto Sensor Signal Simulator

Automotive Sensor Signal Simulator

The host uses 3 high-power wire-wound potentiometers to increase the output

protection circuit, which further improves the reliability of the instrument.

Simulate various sensor wiring methods:

1. Accelerator pedal sensor signal simulation

power wires, and two signal wires (voltage ratio 2:1).

in with an external power supply, all six wires need to be connected.

change together, and the ratio will always remain 2:1.

2. Sensors that simulate voltage changes.

Common voltage sensors in automobiles include: air flow sensor, intake

and signal wire.

power supply needs to be connected.

3. Sensors that simulate changes in resistance

Common resistance sensors in automobiles include: coolant temperature sensor,

intake air temperature sensor, oil temperature sensor, exhaust temperature

sensor, fuel temperature sensor, evaporator temperature sensor, ambient

temperature sensor, etc.

changes with temperature.

value between 0-10KΩ.

4. Oxygen sensor signal simulation

output wire, and the ground wire.

automatically outputs a 0.1-0.9V continuously changing voltage signal.

6. The expansion board (A) is an optional accessory that needs to be

purchased separately and cannot be used alone.

signals is equal to 5V.

connected to the signal 1 and signal 2 of the expansion board A,

8. Use expansion board A to simulate voltage type or resistance type sensors,

and use V3 or V4 to simulate.

Let's take V3 as an example: the signal wire of a voltage-type or resistance-type

sensor is connected to the ground wire GND of the expansion board A.

changes between 0-5V.

Order it via AliExpress store (click):

Product link: https://www.aliexpress.com/item/4000188934898.html

Aliexpess store link: https://brightwintech.aliexpress.com/store/4557043

Technical support: brightwinelectronics@hotmail.com

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