Experts advise to install the sensor hitting on the metal parts of the bodywork inside the vehicle, symmetrically to the axis of the vehicle. The bottom of the car to install the sensor, because the triggering can occur from the resonance vibration of the body due to passing heavy vehicles. The to install also the plastic part of the car body, as reducing the sensitivity of the sensor. The best place is the shield between the car and the underhood space.
Sensor shock has four wires and is connected to a special 4-pin connector of the main unit alarm. The sensor in the original equipment is attached to the metal part of the body using double-sided tape. However, self-respecting motorists prefer to be attached with special fasteners to the screws.
The adjustment is carried out manually during the installation using the resistors available on a sensor panel. One resistor is responsible for the warning about the physical effects (weak strike), the other delivers an alarm signal if a strong effect on the car body.
Remove both regulator sensor until it stops (zero). Add slowly (one or two terms of wrapping) the sensitivity of the warning zone.
After you configure the sensitivity of the warning zone in the same pattern, adjust the sensitivity of zone alarm. Usually it is configured for one or two turns more than the warning area.
After adding, close the door and put the car on the alarm. Then, after the installation to protection (30-60 seconds), test the sensitivity of the machine, tapping on the body hand. Tapping on the hood, doors and roof can be dented. Knock on racks front and rear doors. If the sensitivity does not suit you – install the resistors for one or two turns.
By design, the impact sensors are electromagnetic, piezoelectric, and microphonic. By way of response, the sensors are divided into single level and duplex. Duplex (two-zone) sensors distinguish between strong and weak shocks on the car and react differently to external stimuli (warning and alarm).
Advice 2: How to adjust the shock sensor
Sensor shock is one of the signalling devices fixing external influences on the car and promptly transmitting the information about them to the owner. Split-level sensors, in contrast to a sibling, there are strong and weak impacts, and issue either an alarming or warning signal triggering.
You will need
- the shock sensor.
Before adjustment, read the manual of the car and set the alarm. Disconnect the battery, if permitted by the instruction. If it cannot be turned off, remove the fuse for the interior light to avoid discharging the battery during the adjustments.
When adjusting the sensor strike * do not inflate excessively its sensitivity. According to the regulations, the number called by this sensor alerts is limited to 10 false alarms per cycle of protection. After that, the sensor strike shall be automatically switched off until the next arming.
When performing adjustment operations try to eliminate false alarms from minor influences such as wind gusts. Exhibiting the desired sensitivity, consider the weight of the vehicle and mounting method of the basic alarm unit and the environment in the place where you used to Park and store your car.
Note the scale of sensitivity of the sensor to shock. It is conditionally divided into several levels (most often 8 or 10). Zero level corresponds to the disconnection of the sensor, and the last level is the maximum sensitivity. Factory setting, usually at a level slightly below average.
Put an alarm on the guard and throw some punches to the body or wheel of the car. In this case start with weak punches, gradually increasing their strength. Thus determine the strength of the impact in which the sensor of the punch leads to system discharge. If necessary, perform the sensitivity adjustment in the direction of increase or decrease.
To change the sensitivity of the sensor blow off the protection mode, enter the programming mode and change the sensitivity by entering the desired values into the memory system. This must refer to the operating instructions for your model alarm. On older designs to change the sensitivity slowly turn the special adjustment screw (trimmer) or press change the sensitivity. This sequence of actions spend as long as don't specify a normal level of sensitivity for your vehicle.
The correctness of the performed installation and adjustment determine the accuracy and stability of response of the sensor to external stimuli and absence of false alarms due to minor or extraneous disturbances, such as gust of wind or passing a truck with loud exhaust sound.