Free ship Blue LED Digital Tachometer Tacho Gauge fit Car Motorcycle show RPM + Battery Over voltage alarm CAR MOTOR AUTO METER
|Volume Retail sales||0||Product Rating||5.0|
|Original Price||US $12.00||Discount||10%|
|Last Price||:||US $10.80|
Free shipping Blue LED Digital Tachometer Tacho Gauge fit Car Motorcycle show RPM + Battery Over voltage alarm CAR MOTOR AUTO METER online in stock
- Display RPM , that means show rotate speed online!
- Over voltage alarm , when voltage is higher than 15V, the display value will be flicker
Please noted that this B120 only flickering or twinkle or Blinking when car battery overvoltage, don\'t show the real online value of car battery!
If you need show the real online car voltage value when over voltage, need buy our B121
1. This Auto car RPM meter use Ultra bright 0.36 inch digital tube digital display instrument, driven by high performance mcu. Can be used in automobile, motorcycle and other electronic ignition vehicles. Using high integrated design, the size and appearance of the same size as the single function of tachometer. Can be easily installed in the card into the supporting housing.
2. Behind the instrument button is for adjusting internal parameters, when it is discovered that the display speed and actual speed inconsistency , then we need to adjust the parameters (motorcycle idle 1100-1600, idling 750-1200, engine idling in the just started on the high side, hot car stability decreased, such as air conditioning load change will influence idle).
Parameters depending on the type of engine (such as the horizontal bar, steel, four cylinder), distribution, and wiring position are concerned, specifically according to the parameters in more detail below as a reference. The parameter mismatch phenomenon is displayed, and the speed of the actual difference, are integer times or several times. This reset the normal parameters on it.
Before installation, please kind carefully read the following details, problems timely and contact customer service. We are very happy to your answer to problem solving.
How to adjust the rotate speed parameters if the real speed is different from the display speed
Before engine start, you press button, and then start the engine, parameter may be 1-6 cycle change display,when reach the parameters you want to set and then release the button ,then it is ok. The parameters are saved in the internal chip, even if the power cut and parameters donen\'t lost. Every time before electricity meters in 2 seconds and display the internal parameters will be self configured.
The engine speed parameter types are as follows:
1 Parameters: adapt to the frequency of 8.33Hz/1000 RPM per cylinder ignition EFI car use.
2 Parameter (the default setting): suitable for frequency 16.66Hz/1000 of four - cylinder EFI (second igniter) and two-stroke and four stroke motorcycles.
3 parameters: three cylinder cars for the use of frequency 25.00Hz/1000 rpm
4 parameters: four cylinder cars are suitable for frequency 33.33Hz/1000 rpm turn (with electric cars) an igniter.
5 parameters: eight cylinder cars are suitable for frequency 66.67Hz/1000 rpm turn.
6 parameters: six cylinder cars are suitable for frequency 50.00Hz/1000 rpm turn.
3. This meter displays car engine speed automatically. When car engine started, it begin to show the speed. If battery over voltage,which is bigger than 15V(>15V)
The meter display speed will be flickering and flashing, which is alarm. and notify you this car battery voltage is over. If enginer speed over 10000 rpm/m, for example 15000r/min, the car tachometer will display -150
4. Working Volt :DC 8V -17V
Voltage accuracy: +/- 0.1V ;
Speed accuracy: +/- 30r/min
5. How to wire:
Black wire : Ground wire, connect battery negtive output (DC - )
Red wire: Power supply, connect battery positive output (DC +)
Blue wire : Speed signal cable, connet to ignitor outlet or trigger lines
6. Installation guide :
6.1 Please connect Red and Black wire in advanced to make sure display is normal to work then you connect other wire. Attention!
6.2 The speed signal from the engine ignition signal, can have many wire connections
6.2.1 . Electronic tachometer wire (some car models have a on special wire for speed, if connect, will have the best quality signal)
6.2.2 The high voltage ignition coil inlet wire (if car have no special speed line, we advise connected here)
6.2.3 Ignition outlet wire
6.2.4 The ignition trigger inlet line
6.2.5 The trigger coil outlet
Because of each car line is not the same , above all wiring position may be varying degrees of interference ,result the speed signal is not stable,
If your car model have special electronic tachometer line,connect it and signal will be absolutely no problem
So best choice is 6.2.1
if no have special electronic tachometer line, then connect high voltage ignition coil inlet wire is also good.
So second choice is 6.2.2
Very import Attention!!!
Never connect singal cable to high voltage of high voltage ignition coil outlet wire. You will burn this auto car meter!
1 x Blue Tachometer
Installation real application on car